vulnerability

Debian: CVE-2023-52787: linux -- security update

Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:N/A:C)
Published
05/21/2024
Added
07/30/2024
Modified
02/20/2025

Description

In the Linux kernel, the following vulnerability has been resolved:

blk-mq: make sure active queue usage is held for bio_integrity_prep()

blk_integrity_unregister() can come if queue usage counter isn't held
for one bio with integrity prepared, so this request may be completed with
calling profile->complete_fn, then kernel panic.

Another constraint is that bio_integrity_prep() needs to be called
before bio merge.

Fix the issue by:

- call bio_integrity_prep() with one queue usage counter grabbed reliably

- call bio_integrity_prep() before bio merge

Solution

debian-upgrade-linux
Title
NEW

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