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read outside bounds #1194

Closed
pauldreik opened this issue Jun 5, 2019 · 1 comment
Closed

read outside bounds #1194

pauldreik opened this issue Jun 5, 2019 · 1 comment

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@pauldreik
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Hi,
thanks for the performance advice on the fuzzer!
I switched to fmt::string_view and dropped the extra null. That gave me a crash in address sanitizer, which I reduced to the following test case:

TEST(ChronoTest, outside) {
    try {
        const char format[] = {'{',':','{','A','}'};
        const auto N=sizeof(format);
        auto ignored=fmt::format(fmt::string_view(format,N),std::chrono::seconds{});
    }catch(...) {
     // dont care
    }
}
@vitaut
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vitaut commented Jun 6, 2019

Good catch. This looks like a regression in handling named arguments introduced by fmt::prepare. Fixed in a38b99a.

@vitaut vitaut closed this as completed Jun 6, 2019
pauldreik added a commit to pauldreik/fmt that referenced this issue Jun 8, 2019
@pauldreik
mark fmtlib#1194 as fixed
7d5b0ec
pauldreik added a commit to pauldreik/fmt that referenced this issue Jun 30, 2019
@pauldreik
add oss-fuzz support
3b13f63 
see google/oss-fuzz#2381

the history of the fuzz branch is long and messy and
is difficult to rebase on top of the current master.

Squashed commit of the following:

commit b9d6db5
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 29 21:50:34 2019 +0200

    update exception with a more accurate description

commit f3fbaf6
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 29 21:34:55 2019 +0200

    fix missing flags in reproduce build

commit 40a17be
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 29 21:22:48 2019 +0200

    move check for large precision values closer to where needed

commit ef6e23e
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:55:34 2019 +0200

    simplify the fuzzer build script

commit eadee6e
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:47:54 2019 +0200

    minimize source code pollution

commit 1ece641
Merge: f404079 037b84f
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:22:52 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	CMakeLists.txt

commit f404079
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:20:52 2019 +0200

    make named_arg write into a string or a memory_buffer

    this makes the fuzzer consistent with the others.

commit 545dbe1
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu Jun 20 06:34:17 2019 +0200

    tidy up extra newlines, missing std:: etc.

commit 2d816ef
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:49:08 2019 +0200

    update unit test to handle expected result following review comment

commit a5b9a26
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:40:06 2019 +0200

    update build script to reflect changes after review

commit 8411cb7
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:39:39 2019 +0200

    review comment: clarify what the .gitignore is for

commit 18d9e7b
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:36:56 2019 +0200

    review comment: don't touch root .gitignore

commit 7683d7f
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:35:40 2019 +0200

    review comment: condiionally include main.cpp

commit be0bdae
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:31:28 2019 +0200

    review comment: drop commented out code not working on travis

commit 0134298
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:30:26 2019 +0200

    review comment: renumber case labels

    the old ones were to be able to reuse the corpus, let's drop it

commit f66fe7b
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:06:47 2019 +0200

    review comment: libfmt->fmt

commit 4a4ddb6
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:05:32 2019 +0200

    reuse fmt_safe_duration_cast

commit 0a16794
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:02:48 2019 +0200

    review comment: name convention, better name

    C was for "chrono duration"

commit 63084ca
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:00:50 2019 +0200

    reuse earlier extract fmt_safe_... function

commit b23388d
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:58:55 2019 +0200

    review comment: don't output inf.inf

commit 6f861f1
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:57:00 2019 +0200

    review comment: extract function for invoking safe_duration_cast

commit df19bc8
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:47:30 2019 +0200

    review comment: leftover garbage

commit 84eea80
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:45:22 2019 +0200

    review comment: turn cmake option into macro for SAFE_DURATION_CAST

    decided to have it on by default

commit c3a1594
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:40:14 2019 +0200

    review comment: extra newline

commit aa55687
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:38:49 2019 +0200

    review comment: file name convention

commit 4102d82
Merge: 28add37 4912cff
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 16:29:29 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 28add37
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 21:44:06 2019 +0200

    disable check to pass travis

commit 4119378
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 21:32:39 2019 +0200

    add missing include

commit ba2efb8
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 21:04:41 2019 +0200

    try working around build issue on travis

commit 380671a
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 20:22:41 2019 +0200

    write positive infinity without sign

commit fd72b9a
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 20:20:50 2019 +0200

    remove leftover from merge

commit 1ae3128
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 20:14:45 2019 +0200

    format to buffer instead of string

commit 1d83a56
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:50:19 2019 +0200

    fix warnings

commit a33b45a
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:43:46 2019 +0200

    refactor and fix warnings

commit 02afb12
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:17:27 2019 +0200

    use fixed size input

commit 35f84c8
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:07:43 2019 +0200

    factor out main into a separate file

commit a23b7a1
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 18:56:40 2019 +0200

    refactor

commit 9a3f4cf
Merge: 7842582 12f4683
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 18:20:03 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 7842582
Merge: 90cab5a cbbee1b
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu Jun 13 10:41:34 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 90cab5a
Merge: 8feb8a3 e5422db
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 12 18:49:08 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 8feb8a3
Merge: e9fabac 87fbc6f
Author: Paul Dreik <github@pauldreik.se>
Date:   Tue Jun 11 19:18:35 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit e9fabac
Merge: eaff931 e1a67b5
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 10 22:38:36 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit eaff931
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 22:29:01 2019 +0200

    drop old crashes

commit 7f861e4
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:47:30 2019 +0200

    build fuzzers as part of the linux clang 6 build

commit 42c3390
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:42:12 2019 +0200

    travis has old libs

commit 9264e3a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:33:26 2019 +0200

    more travis workarounds

commit c6eed3a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:27:49 2019 +0200

    travis workaround

commit 5e230d6
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:15:36 2019 +0200

    fix constexpr issues

commit cc5fc03
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:11:13 2019 +0200

    add a fuzzer build

commit 3997375
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:53:04 2019 +0200

    fix minor documentation errors

commit 1572411
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:49:25 2019 +0200

    polish the documentation

commit 9e52744
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:32:45 2019 +0200

    remove unused headers

commit 4b2492a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:28:12 2019 +0200

    clang format

commit a0004eb
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:27:02 2019 +0200

    format also void*

commit 820142e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:12:21 2019 +0200

    improve two_args with lessons learnt from the others

commit 7b8fd7f
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:11:18 2019 +0200

    improve function names

commit 641bf36
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:07:29 2019 +0200

    clang format

commit 7975c0c
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:06:02 2019 +0200

    apply lessons learned from chrono fuzzer on sprintf

commit 972124c
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:55:49 2019 +0200

    format to buffer instead of string

commit 7b015c6
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:50:25 2019 +0200

    apply lessons learned from the chrono fuzzer at one_arg

commit daa8ea9
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:41:17 2019 +0200

    renumber cases

commit a667365
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:38:06 2019 +0200

    clang format

commit e0e361b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:36:35 2019 +0200

    disable fuzzing by default

commit ccb4274
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:36:25 2019 +0200

    refresh named_arg with lessons learnt from the chrono fuzzer

commit 60da706
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:36:00 2019 +0200

    fix build error

commit e361bfc
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:00:11 2019 +0200

    add comment about formatting to string vs. memory buffer

commit 74c0ed0
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:51:23 2019 +0200

    try to use better names

commit 4efea36
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:46:07 2019 +0200

    fix clang build error

commit 03cdd2e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:44:21 2019 +0200

    drop workarounds fixed upstream

commit e936829
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:41:02 2019 +0200

    move the fuzzers into the test/ subdirectory

commit 2967765
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:30:03 2019 +0200

    revert temporary tests handled upstream

commit 749c502
Merge: dee6908 5d9100f
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:49:00 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit dee6908
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:40:37 2019 +0200

    keep documentation comment formatted properly

commit 87d2c99
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:36:12 2019 +0200

    switch to fmt constexpr macros

commit c23fa59
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:30:22 2019 +0200

    clang format

commit 9e58207
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:27:03 2019 +0200

    get rid of safe_duration_cast submodule

    replaced with an embedded miniature version

commit a4d36ea
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:25:00 2019 +0200

    add safe_duration_cast into fmt

commit 7d5b0ec
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 8 22:39:33 2019 +0200

    mark fmtlib#1194 as fixed

commit ee91514
Merge: 6056911 4faadff
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 8 22:25:37 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 6056911
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 09:58:30 2019 +0200

    format to small size buffer instead of string

commit 9f00609
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 09:45:23 2019 +0200

    switch to fmt::string_view and workaround reported bug

commit 387de0d
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 06:26:15 2019 +0200

    ignore build directories

commit 55da271
Merge: 3716491 c264e64
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 06:12:36 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 3716491
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 3 07:03:29 2019 +0200

    fix UB in on_second

commit 2740241
Merge: 1c25840 d54e64b
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 3 06:37:18 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 1c25840
Merge: ca9596d f57227a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 1 08:01:58 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit ca9596d
Merge: 1c274cf d07cc20
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 19:42:33 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 1c274cf
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 08:12:10 2019 +0200

    make it easier for the chrono fuzzer to explore

    using a fixed size makes the cases cross pollinate
    each other better.

    the execution speed is much higher as well

commit f0d7ccc
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 07:36:21 2019 +0200

    add a build adapted for analysis of fuzzing performance

commit 56f7cf3
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 06:25:10 2019 +0200

    allow negative values again

commit a77a5fc
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 05:45:55 2019 +0200

    fix UB on signed int overflow in chrono_formatter constructor

    see fmtlib#1179

commit b6a5927
Merge: 492a204 30bce6c
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 05:26:30 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 492a204
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 21:36:00 2019 +0200

    fix bad assert

commit 0ae68b0
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 21:35:49 2019 +0200

    add unsigned types for chrono fuzzing

commit 2753d7d
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 20:25:21 2019 +0200

    use C++17

commit bc12742
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:44:59 2019 +0200

    add symlink for safe_duration_cast

commit 67201d2
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:40:40 2019 +0200

    turn on safe duration cast for the fuzzer builds

commit 31a7008
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:32:52 2019 +0200

    clang format

commit 981e30c
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:30:19 2019 +0200

    reduce maximum allocation size

commit 7ba51da
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:30:01 2019 +0200

    make nan unit test pass

commit 95b4b9c
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 18:39:08 2019 +0200

    special case nan and inf

commit 2673c96
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 16:40:11 2019 +0200

    build a fast fuzzer, for making coverage fast

commit db52b62
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 16:39:48 2019 +0200

    add safe duration cast as submodule

commit c8a028f
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 16:00:26 2019 +0200

    enable chrono fuzzing for non-negative values

commit de3555c
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 13:06:35 2019 +0200

    try start using safe duration cast

commit 5c32451
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 09:59:34 2019 +0200

    add failing test

commit 3a565d3
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 09:59:09 2019 +0200

    fix cmake option type (should be string, not bool)

commit 61c6756
Merge: 63e7b9e bb254d1
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 07:03:42 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 63e7b9e
Merge: 7dd1d80 5e7bdf1
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri May 17 19:17:20 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 7dd1d80
Merge: 2c9aa5a 2a9e8b5
Author: Paul Dreik <github@pauldreik.se>
Date:   Tue May 14 19:38:32 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 2c9aa5a
Merge: 16a442c 2c77562
Author: Paul Dreik <github@pauldreik.se>
Date:   Tue May 14 06:33:16 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 16a442c
Merge: b1d70b6 f4dfd6e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 12 15:24:31 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit b1d70b6
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri May 10 08:52:57 2019 +0200

    prevent excessive time (found by oss-fuzz)

    the following triggered this:
    std::string message =
          fmt::format("\377{:.214718908}\377", fmt::arg("/\0", 0.f));

    there are probably more places with calls to fill_n which could be checked

commit 9a91093
Merge: 7de0fde e9bab6d
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 9 06:06:32 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 7de0fde
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 20:08:53 2019 +0200

    clang format

commit bb375e1
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 19:47:10 2019 +0200

    seems to pass the unit test now (except for the nan stuff from victor)

commit 786b4b7
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 19:25:23 2019 +0200

    add assert triggering data, and unit test

commit 2790e48
Merge: fa859a0 ca978b3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 18:42:51 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit fa859a0
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 18:18:54 2019 +0200

    add crash

commit 1f6e341
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 18:18:27 2019 +0200

    assert floating point is finite internally

commit 5087774
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 17:32:03 2019 +0200

    invoke undefined behaviour inside chrono

commit bac7ac4
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 17:31:35 2019 +0200

    refactor the fuzzer build script

commit b19c4cd
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:25:11 2019 +0200

    add one more crash

commit 7607592
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:24:05 2019 +0200

    add crashing input

commit b059a98
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:21:25 2019 +0200

    trigger undefined behaviour with NaN durations

commit 7cce332
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:20:51 2019 +0200

    add asan only fuzzer

commit 757319a
Merge: a574b21 c1d430e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 06:34:59 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	test/chrono-test.cc

commit a574b21
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat May 4 12:54:13 2019 +0200

    disable chrono fuzzing for now

    it triggers integer overflow and is not trivial to solve.

commit ff17322
Merge: d6a5985 29c10fb
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat May 4 07:29:39 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit d6a5985
Merge: 663b159 4a4d72f
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 1 20:44:16 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	test/chrono-test.cc

commit 663b159
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 22:36:07 2019 +0200

    add crash case (triggers assertion)

commit 082a5cb
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 21:44:19 2019 +0200

    add const

commit b8d7091
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 21:29:43 2019 +0200

    provoke assertion

    fmt/include/fmt/core.h:246:
    typename std::make_unsigned<_Tp>::type fmt::v5::internal::to_unsigned(Int)
    [with Int = long int;
     typename std::make_unsigned<_Tp>::type = long unsigned int]:
    Assertion `(value >= 0) && "negative value"' failed.

commit e196601
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 20:46:16 2019 +0200

    add more crashes

commit 1394ae3
Merge: 89338ca 4c721e3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 17:16:14 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 89338ca
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:40:32 2019 +0200

    add notes on how to reproduce crashes

commit 7dc3e4c
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:28:20 2019 +0200

    add crashes from chrono duration

commit b62e8bc
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:26:53 2019 +0200

    rename fuzzer

commit 7f4ab2b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:15:38 2019 +0200

    clang format

commit a6cc2a3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:12:04 2019 +0200

    add chrono duration fuzzer

commit 682713c
Merge: 8b934b3 8d8ea21
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 08:07:56 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 8b934b3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:23:44 2019 +0200

    clang format

commit 793d97b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:23:17 2019 +0200

    tighten memory allocation

commit e2301f2
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:19:56 2019 +0200

    clean up and set license (BSD 2-clause simplified, same as fmt)

commit e64c3fb
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:04:23 2019 +0200

    clean up and add afl

commit ab46241
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 09:54:48 2019 +0200

    drop c++17 requirement

commit 20c01e1
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 09:25:19 2019 +0200

    initial oss-fuzz compatible version

commit 6cbd91a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 08:42:51 2019 +0200

    initial commit of fuzzers from https://github.com/pauldreik/fuzzfmt

commit eaddfb1
Merge: e37d7db 134904c
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 08:38:19 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit e37d7db
Merge: 99b2e08 bd516e3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 21 17:28:06 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 99b2e08
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 21 10:30:56 2019 +0200

    stop high memory use when fuzzing
vitaut pushed a commit that referenced this issue Jun 30, 2019
@pauldreik @vitaut
add oss-fuzz support
9d97201 
see google/oss-fuzz#2381

the history of the fuzz branch is long and messy and
is difficult to rebase on top of the current master.

Squashed commit of the following:

commit b9d6db5
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 29 21:50:34 2019 +0200

    update exception with a more accurate description

commit f3fbaf6
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 29 21:34:55 2019 +0200

    fix missing flags in reproduce build

commit 40a17be
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 29 21:22:48 2019 +0200

    move check for large precision values closer to where needed

commit ef6e23e
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:55:34 2019 +0200

    simplify the fuzzer build script

commit eadee6e
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:47:54 2019 +0200

    minimize source code pollution

commit 1ece641
Merge: f404079 037b84f
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:22:52 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	CMakeLists.txt

commit f404079
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 28 20:20:52 2019 +0200

    make named_arg write into a string or a memory_buffer

    this makes the fuzzer consistent with the others.

commit 545dbe1
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu Jun 20 06:34:17 2019 +0200

    tidy up extra newlines, missing std:: etc.

commit 2d816ef
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:49:08 2019 +0200

    update unit test to handle expected result following review comment

commit a5b9a26
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:40:06 2019 +0200

    update build script to reflect changes after review

commit 8411cb7
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:39:39 2019 +0200

    review comment: clarify what the .gitignore is for

commit 18d9e7b
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:36:56 2019 +0200

    review comment: don't touch root .gitignore

commit 7683d7f
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:35:40 2019 +0200

    review comment: condiionally include main.cpp

commit be0bdae
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:31:28 2019 +0200

    review comment: drop commented out code not working on travis

commit 0134298
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:30:26 2019 +0200

    review comment: renumber case labels

    the old ones were to be able to reuse the corpus, let's drop it

commit f66fe7b
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:06:47 2019 +0200

    review comment: libfmt->fmt

commit 4a4ddb6
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:05:32 2019 +0200

    reuse fmt_safe_duration_cast

commit 0a16794
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:02:48 2019 +0200

    review comment: name convention, better name

    C was for "chrono duration"

commit 63084ca
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 20:00:50 2019 +0200

    reuse earlier extract fmt_safe_... function

commit b23388d
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:58:55 2019 +0200

    review comment: don't output inf.inf

commit 6f861f1
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:57:00 2019 +0200

    review comment: extract function for invoking safe_duration_cast

commit df19bc8
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:47:30 2019 +0200

    review comment: leftover garbage

commit 84eea80
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:45:22 2019 +0200

    review comment: turn cmake option into macro for SAFE_DURATION_CAST

    decided to have it on by default

commit c3a1594
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:40:14 2019 +0200

    review comment: extra newline

commit aa55687
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 19:38:49 2019 +0200

    review comment: file name convention

commit 4102d82
Merge: 28add37 4912cff
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 17 16:29:29 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 28add37
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 21:44:06 2019 +0200

    disable check to pass travis

commit 4119378
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 21:32:39 2019 +0200

    add missing include

commit ba2efb8
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 21:04:41 2019 +0200

    try working around build issue on travis

commit 380671a
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 20:22:41 2019 +0200

    write positive infinity without sign

commit fd72b9a
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 20:20:50 2019 +0200

    remove leftover from merge

commit 1ae3128
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 20:14:45 2019 +0200

    format to buffer instead of string

commit 1d83a56
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:50:19 2019 +0200

    fix warnings

commit a33b45a
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:43:46 2019 +0200

    refactor and fix warnings

commit 02afb12
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:17:27 2019 +0200

    use fixed size input

commit 35f84c8
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 19:07:43 2019 +0200

    factor out main into a separate file

commit a23b7a1
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 18:56:40 2019 +0200

    refactor

commit 9a3f4cf
Merge: 7842582 12f4683
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri Jun 14 18:20:03 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 7842582
Merge: 90cab5a cbbee1b
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu Jun 13 10:41:34 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 90cab5a
Merge: 8feb8a3 e5422db
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 12 18:49:08 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 8feb8a3
Merge: e9fabac 87fbc6f
Author: Paul Dreik <github@pauldreik.se>
Date:   Tue Jun 11 19:18:35 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit e9fabac
Merge: eaff931 e1a67b5
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 10 22:38:36 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit eaff931
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 22:29:01 2019 +0200

    drop old crashes

commit 7f861e4
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:47:30 2019 +0200

    build fuzzers as part of the linux clang 6 build

commit 42c3390
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:42:12 2019 +0200

    travis has old libs

commit 9264e3a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:33:26 2019 +0200

    more travis workarounds

commit c6eed3a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:27:49 2019 +0200

    travis workaround

commit 5e230d6
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:15:36 2019 +0200

    fix constexpr issues

commit cc5fc03
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 21:11:13 2019 +0200

    add a fuzzer build

commit 3997375
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:53:04 2019 +0200

    fix minor documentation errors

commit 1572411
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:49:25 2019 +0200

    polish the documentation

commit 9e52744
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:32:45 2019 +0200

    remove unused headers

commit 4b2492a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:28:12 2019 +0200

    clang format

commit a0004eb
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:27:02 2019 +0200

    format also void*

commit 820142e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:12:21 2019 +0200

    improve two_args with lessons learnt from the others

commit 7b8fd7f
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:11:18 2019 +0200

    improve function names

commit 641bf36
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:07:29 2019 +0200

    clang format

commit 7975c0c
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 20:06:02 2019 +0200

    apply lessons learned from chrono fuzzer on sprintf

commit 972124c
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:55:49 2019 +0200

    format to buffer instead of string

commit 7b015c6
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:50:25 2019 +0200

    apply lessons learned from the chrono fuzzer at one_arg

commit daa8ea9
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:41:17 2019 +0200

    renumber cases

commit a667365
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:38:06 2019 +0200

    clang format

commit e0e361b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:36:35 2019 +0200

    disable fuzzing by default

commit ccb4274
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:36:25 2019 +0200

    refresh named_arg with lessons learnt from the chrono fuzzer

commit 60da706
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:36:00 2019 +0200

    fix build error

commit e361bfc
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 19:00:11 2019 +0200

    add comment about formatting to string vs. memory buffer

commit 74c0ed0
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:51:23 2019 +0200

    try to use better names

commit 4efea36
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:46:07 2019 +0200

    fix clang build error

commit 03cdd2e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:44:21 2019 +0200

    drop workarounds fixed upstream

commit e936829
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:41:02 2019 +0200

    move the fuzzers into the test/ subdirectory

commit 2967765
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 18:30:03 2019 +0200

    revert temporary tests handled upstream

commit 749c502
Merge: dee6908 5d9100f
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:49:00 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit dee6908
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:40:37 2019 +0200

    keep documentation comment formatted properly

commit 87d2c99
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:36:12 2019 +0200

    switch to fmt constexpr macros

commit c23fa59
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:30:22 2019 +0200

    clang format

commit 9e58207
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:27:03 2019 +0200

    get rid of safe_duration_cast submodule

    replaced with an embedded miniature version

commit a4d36ea
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Jun 9 17:25:00 2019 +0200

    add safe_duration_cast into fmt

commit 7d5b0ec
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 8 22:39:33 2019 +0200

    mark #1194 as fixed

commit ee91514
Merge: 6056911 4faadff
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 8 22:25:37 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 6056911
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 09:58:30 2019 +0200

    format to small size buffer instead of string

commit 9f00609
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 09:45:23 2019 +0200

    switch to fmt::string_view and workaround reported bug

commit 387de0d
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 06:26:15 2019 +0200

    ignore build directories

commit 55da271
Merge: 3716491 c264e64
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed Jun 5 06:12:36 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 3716491
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 3 07:03:29 2019 +0200

    fix UB in on_second

commit 2740241
Merge: 1c25840 d54e64b
Author: Paul Dreik <github@pauldreik.se>
Date:   Mon Jun 3 06:37:18 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 1c25840
Merge: ca9596d f57227a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Jun 1 08:01:58 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit ca9596d
Merge: 1c274cf d07cc20
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 19:42:33 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 1c274cf
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 08:12:10 2019 +0200

    make it easier for the chrono fuzzer to explore

    using a fixed size makes the cases cross pollinate
    each other better.

    the execution speed is much higher as well

commit f0d7ccc
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 07:36:21 2019 +0200

    add a build adapted for analysis of fuzzing performance

commit 56f7cf3
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 06:25:10 2019 +0200

    allow negative values again

commit a77a5fc
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 05:45:55 2019 +0200

    fix UB on signed int overflow in chrono_formatter constructor

    see #1179

commit b6a5927
Merge: 492a204 30bce6c
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 30 05:26:30 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 492a204
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 21:36:00 2019 +0200

    fix bad assert

commit 0ae68b0
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 21:35:49 2019 +0200

    add unsigned types for chrono fuzzing

commit 2753d7d
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 20:25:21 2019 +0200

    use C++17

commit bc12742
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:44:59 2019 +0200

    add symlink for safe_duration_cast

commit 67201d2
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:40:40 2019 +0200

    turn on safe duration cast for the fuzzer builds

commit 31a7008
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:32:52 2019 +0200

    clang format

commit 981e30c
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:30:19 2019 +0200

    reduce maximum allocation size

commit 7ba51da
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 19:30:01 2019 +0200

    make nan unit test pass

commit 95b4b9c
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 18:39:08 2019 +0200

    special case nan and inf

commit 2673c96
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 16:40:11 2019 +0200

    build a fast fuzzer, for making coverage fast

commit db52b62
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 16:39:48 2019 +0200

    add safe duration cast as submodule

commit c8a028f
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 16:00:26 2019 +0200

    enable chrono fuzzing for non-negative values

commit de3555c
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 13:06:35 2019 +0200

    try start using safe duration cast

commit 5c32451
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 09:59:34 2019 +0200

    add failing test

commit 3a565d3
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 09:59:09 2019 +0200

    fix cmake option type (should be string, not bool)

commit 61c6756
Merge: 63e7b9e bb254d1
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 29 07:03:42 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 63e7b9e
Merge: 7dd1d80 5e7bdf1
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri May 17 19:17:20 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 7dd1d80
Merge: 2c9aa5a 2a9e8b5
Author: Paul Dreik <github@pauldreik.se>
Date:   Tue May 14 19:38:32 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 2c9aa5a
Merge: 16a442c 2c77562
Author: Paul Dreik <github@pauldreik.se>
Date:   Tue May 14 06:33:16 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 16a442c
Merge: b1d70b6 f4dfd6e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 12 15:24:31 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit b1d70b6
Author: Paul Dreik <github@pauldreik.se>
Date:   Fri May 10 08:52:57 2019 +0200

    prevent excessive time (found by oss-fuzz)

    the following triggered this:
    std::string message =
          fmt::format("\377{:.214718908}\377", fmt::arg("/\0", 0.f));

    there are probably more places with calls to fill_n which could be checked

commit 9a91093
Merge: 7de0fde e9bab6d
Author: Paul Dreik <github@pauldreik.se>
Date:   Thu May 9 06:06:32 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	include/fmt/chrono.h

commit 7de0fde
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 20:08:53 2019 +0200

    clang format

commit bb375e1
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 19:47:10 2019 +0200

    seems to pass the unit test now (except for the nan stuff from victor)

commit 786b4b7
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 19:25:23 2019 +0200

    add assert triggering data, and unit test

commit 2790e48
Merge: fa859a0 ca978b3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 18:42:51 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit fa859a0
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 18:18:54 2019 +0200

    add crash

commit 1f6e341
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 18:18:27 2019 +0200

    assert floating point is finite internally

commit 5087774
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 17:32:03 2019 +0200

    invoke undefined behaviour inside chrono

commit bac7ac4
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 17:31:35 2019 +0200

    refactor the fuzzer build script

commit b19c4cd
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:25:11 2019 +0200

    add one more crash

commit 7607592
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:24:05 2019 +0200

    add crashing input

commit b059a98
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:21:25 2019 +0200

    trigger undefined behaviour with NaN durations

commit 7cce332
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 16:20:51 2019 +0200

    add asan only fuzzer

commit 757319a
Merge: a574b21 c1d430e
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun May 5 06:34:59 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	test/chrono-test.cc

commit a574b21
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat May 4 12:54:13 2019 +0200

    disable chrono fuzzing for now

    it triggers integer overflow and is not trivial to solve.

commit ff17322
Merge: d6a5985 29c10fb
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat May 4 07:29:39 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit d6a5985
Merge: 663b159 4a4d72f
Author: Paul Dreik <github@pauldreik.se>
Date:   Wed May 1 20:44:16 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

    # Conflicts:
    #	test/chrono-test.cc

commit 663b159
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 22:36:07 2019 +0200

    add crash case (triggers assertion)

commit 082a5cb
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 21:44:19 2019 +0200

    add const

commit b8d7091
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 21:29:43 2019 +0200

    provoke assertion

    fmt/include/fmt/core.h:246:
    typename std::make_unsigned<_Tp>::type fmt::v5::internal::to_unsigned(Int)
    [with Int = long int;
     typename std::make_unsigned<_Tp>::type = long unsigned int]:
    Assertion `(value >= 0) && "negative value"' failed.

commit e196601
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 20:46:16 2019 +0200

    add more crashes

commit 1394ae3
Merge: 89338ca 4c721e3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 17:16:14 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 89338ca
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:40:32 2019 +0200

    add notes on how to reproduce crashes

commit 7dc3e4c
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:28:20 2019 +0200

    add crashes from chrono duration

commit b62e8bc
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:26:53 2019 +0200

    rename fuzzer

commit 7f4ab2b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:15:38 2019 +0200

    clang format

commit a6cc2a3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 09:12:04 2019 +0200

    add chrono duration fuzzer

commit 682713c
Merge: 8b934b3 8d8ea21
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 28 08:07:56 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 8b934b3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:23:44 2019 +0200

    clang format

commit 793d97b
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:23:17 2019 +0200

    tighten memory allocation

commit e2301f2
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:19:56 2019 +0200

    clean up and set license (BSD 2-clause simplified, same as fmt)

commit e64c3fb
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 10:04:23 2019 +0200

    clean up and add afl

commit ab46241
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 09:54:48 2019 +0200

    drop c++17 requirement

commit 20c01e1
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 09:25:19 2019 +0200

    initial oss-fuzz compatible version

commit 6cbd91a
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 08:42:51 2019 +0200

    initial commit of fuzzers from https://github.com/pauldreik/fuzzfmt

commit eaddfb1
Merge: e37d7db 134904c
Author: Paul Dreik <github@pauldreik.se>
Date:   Sat Apr 27 08:38:19 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit e37d7db
Merge: 99b2e08 bd516e3
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 21 17:28:06 2019 +0200

    Merge remote-tracking branch 'upstream/master' into fuzz

commit 99b2e08
Author: Paul Dreik <github@pauldreik.se>
Date:   Sun Apr 21 10:30:56 2019 +0200

    stop high memory use when fuzzing
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