APPLIED: [SRU][F/J][PATCH 0/1] CVE-2024-35904

[Stefan Bader]

On 21.10.24 10:54, Massimiliano Pellizzer wrote:
> [Impact]
> 
> selinux: avoid dereference of garbage after mount failure
> 
> In case kern_mount() fails and returns an error pointer return in the
> error branch instead of continuing and dereferencing the error pointer.
> 
> While on it drop the never read static variable selinuxfs_mount.
> 
> [Fix]
> 
> Noble: Fixed
> Jammy: Cherry picked from linux-6.6.y
> Focal: Backported from linux-6.6.y
> Bionic: Not affected
> Xenial: Not affected
> 
> [Test Case]
> 
> Compile and boot tested enabling SELinux.
> 
> [Where problems could occur]
> 
> The fix affects the SELinux filesystem. An issue with this fix may lead
> to kernel crashes during SELinux policy enforcement or when interacting
> with the SELinux filesystem. Users may also experience failed attempts
> to load or apply SELinux policies, resulting in security contexts not
> being enforced properly.
> 
> Christian Göttsche (1):
>    selinux: avoid dereference of garbage after mount failure
> 
>   security/selinux/selinuxfs.c | 12 +++++++-----
>   1 file changed, 7 insertions(+), 5 deletions(-)
> 

Applied to jammy,focal:linux/master-next. Thanks.

-Stefan

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