APPLIED[F]: [SRU B/F/H/I/OEM-5.10/HWE-5.8 0/1] CVE-2021-40490
Kelsey Skunberg
kelsey.skunberg at canonical.com
Thu Sep 23 22:56:31 UTC 2021
Applied for Focal master-next. Thank you!
-Kelsey
On 2021-09-15 14:28:17 , Thadeu Lima de Souza Cascardo wrote:
> [Impact]
> A race when setting xattrs will cause an OOB write, leading to a crash.
>
> [Test case]
> A syzkaller reproducer was used to test it. All fixed kernels pass. The
> test also ends up exercising the changed code.
>
> [Potential regression]
> ext4 filesystems may be corrupt or system crashes related to ext4 might happen.
>
> Theodore Ts'o (1):
> ext4: fix race writing to an inline_data file while its xattrs are
> changing
>
> fs/ext4/inline.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> --
> 2.30.2
>
>
> --
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