APPLIED: [SRU][M/J/F][PATCH 0/1] CVE-2024-26622

[Roxana Nicolescu]

On 01/04/2024 16:19, Bethany Jamison wrote:
> [Impact]
>
>   In the Linux kernel, the following vulnerability has been resolved:
>
>   tomoyo: fix UAF write bug in tomoyo_write_control()
>
>   Since tomoyo_write_control() updates head->write_buf when write()
>   of long lines is requested, we need to fetch head->write_buf after
>   head->io_sem is held.  Otherwise, concurrent write() requests can
>   cause use-after-free-write and double-free problems.
>
> [Fix]
>
> Mantic:	Clean cherry-pick
> Jammy:	M patch applied cleanly
> Focal:	M patch applied cleanly
> Bionic:	fix sent to esm ML
> Xenial:	fix sent to esm ML
> Trusty:	not going to be fixed by us
>
> [Test Case]
>
> Compile and boot tested.
>
> [Where problems could occur]
>
> This affects those who use Tomoyo as a MAC, mandatory access control,
> issues could occur when writting to the tomoyo interface.
>
> Tetsuo Handa (1):
>    tomoyo: fix UAF write bug in tomoyo_write_control()
>
>   security/tomoyo/common.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
Applied to mantic, jammy, focal master-next branches. Thanks!