[LTS 9.2-RT] media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_…

[gvrose8192]

jira VULN-9666
cve CVE-2024-53104
commit-author Benoit Sevens bsevens@google.com
commit ecf2b43

This can lead to out of bounds writes since frames of this type were not taken into account when calculating the size of the frames buffer in uvc_parse_streaming.

Fixes: c0efd23 ("V4L/DVB (8145a): USB Video Class driver")
Signed-off-by: Benoit Sevens bsevens@google.com
Cc: stable@vger.kernel.org
Acked-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com
Signed-off-by: Hans Verkuil hverkuil@xs4all.nl
(cherry picked from commit ecf2b43)
Signed-off-by: Greg Rose g.v.rose@ciq.com

Builds and Loads

Your branch is up to date with 'origin/main'.
branch 'gvrose_ciqlts9_2-rt' set up to track 'origin/gvrose_ciqlts9_2-rt'.
Already up to date.
configs/kernel-rt-5.14.0-x86_64.config:CONFIG_PREEMPT_RT=y
configs/kernel-rt-5.14.0-x86_64-debug.config:CONFIG_PREEMPT_RT=y
skipkabi is true
/home/gvrose8192/prj/kernel-build-gvrose_ciqlts9_2-rt
no .config file found, moving on
[TIMER]{MRPROPER}: 0s
x86_64 architecture detected, copying config
'configs/kernel-rt-5.14.0-x86_64.config' -> '.config'
Setting Local Version for build
CONFIG_LOCALVERSION="-gvrose_ciqlts9_2-rt"
Making olddefconfig
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/conf.o
  HOSTCC  scripts/kconfig/confdata.o
  HOSTCC  scripts/kconfig/expr.o
  LEX     scripts/kconfig/lexer.lex.c
  YACC    scripts/kconfig/parser.tab.[ch]
  HOSTCC  scripts/kconfig/lexer.lex.o
  HOSTCC  scripts/kconfig/menu.o
  HOSTCC  scripts/kconfig/parser.tab.o
  HOSTCC  scripts/kconfig/preprocess.o
  HOSTCC  scripts/kconfig/symbol.o
  HOSTCC  scripts/kconfig/util.o
  HOSTLD  scripts/kconfig/conf
#
# configuration written to .config
#
Starting Build
  SYSHDR  arch/x86/include/generated/uapi/asm/unistd_64.h
                                                                                                                  6,1           Top
`
The kABI check is skipped for RT kernels since up to this time there has not been a stable kernel ABI for RT kernels.

[SNIP]
`  SIGN    /lib/modules/5.14.0-gvrose_ciqlts9_2-rt+/kernel/sound/xen/snd_xen_front.ko
  INSTALL /lib/modules/5.14.0-gvrose_ciqlts9_2-rt+/kernel/virt/lib/irqbypass.ko
  STRIP   /lib/modules/5.14.0-gvrose_ciqlts9_2-rt+/kernel/virt/lib/irqbypass.ko
  SIGN    /lib/modules/5.14.0-gvrose_ciqlts9_2-rt+/kernel/virt/lib/irqbypass.ko
  DEPMOD  /lib/modules/5.14.0-gvrose_ciqlts9_2-rt+
[TIMER]{MODULES}: 147s
Making Install
sh ./arch/x86/boot/install.sh \
        5.14.0-gvrose_ciqlts9_2-rt+ arch/x86/boot/bzImage \
        System.map "/boot"
[TIMER]{INSTALL}: 34s
Checking kABI
kABI check skipped
Setting Default Kernel to /boot/vmlinuz-5.14.0-gvrose_ciqlts9_2-rt+ and Index to 0
Hopefully Grub2.0 took everything ... rebooting after time metrices
[TIMER]{MRPROPER}: 0s
[TIMER]{BUILD}: 4797s
[TIMER]{MODULES}: 147s
[TIMER]{INSTALL}: 34s
[TIMER]{TOTAL} 4998s
Rebooting in 10 seconds

Linux auto-kernel-test-92lts-rt 5.14.0-gvrose_ciqlts9_2-rt+ #1 SMP PREEMPT_RT Wed Feb 12 20:37:00 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

Full auto kernel test run commands and logs:
lts-9_2-rt-commands.log
lts-9_2-rt-build.log

Nothing remarkable about the kernel selftest logs.

[bmastbergen]

🥌

[PlaidCat]

Fixing PR description to make code blocks in comments you need to use 3 ```

\```
code goes here
\```

NOTE: \ is to make sure I can actually show what I'm trying to do they shouldn't be there.

[PlaidCat]