[SRU][J][PATCH 0/1] CVE-2022-0995 followup

[Cengiz Can]

[ Impact ]

An out-of-bounds (OOB) memory write flaw was found in the Linux kernel’s
watch_queue event notification subsystem. This flaw can overwrite parts of
the kernel state, potentially allowing a local user to gain privileged
access or cause a denial of service on the system.

Followup reason: One of the improvement patches was missing from Jammy.
Although it looks like an unrelated patch, it's still relevant to the
CVE fix.

[ Test Plan ]

Compile and boot tested.

[ Where problems could occur ]

Watch queues are used to send notifications between userspace and kernel.
Users might encounter corrupt kernel notifications.

Christophe JAILLET (1):
  watch_queue: Use the bitmap API when applicable

 kernel/watch_queue.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

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2.43.0