CVE-2023-52787

MEDIUM

Linux Kernel - Use-After-Free in blk-mq

Title source: llm
STIX 2.1

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

Scores

CVSS v3 5.5
EPSS 0.0024
EPSS Percentile 14.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (15)
linux/Kernel 5.16.0 - 6.1.72linux
linux/Kernel 6.2.0 - 6.5.13linux
linux/Kernel 6.6.0 - 6.6.3linux
Linux/Linux < 5.16
Linux/Linux 5.16
Linux/Linux 6.1.72 - 6.1.*
Linux/Linux 6.5.13 - 6.5.*
Linux/Linux 6.6.3 - 6.6.*
Linux/Linux 6.7
Linux/Linux 900e080752025f0016128f07c9ed4c50eba3654b - b0077e269f6c152e807fdac90b58caf012cdbaab
... and 5 more
Published May 21, 2024
Tracked Since Feb 18, 2026