PT-2024-33915 · Linux+11 · Linux Kernel+11
Omar Sandoval
·
Published
2024-10-28
·
Updated
2025-10-03
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CVE-2024-50082
CVSS v3.1
4.7
Medium
| Vector | AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel versions prior to 6.12.0-rc3-00013-geca631b8fe80
Description:
A race condition exists between
rq qos wait() and rq qos wake function() in the Linux kernel, leading to a crash. The issue occurs when rq qos wake function() deletes the waitqueue entry and then calls wake up process(), but rq qos wait() has already returned and clobbered the data->task pointer. This results in wake up process() being called with an invalid pointer, causing a crash. The estimated number of potentially affected devices is not specified.Recommendations:
To resolve the issue, update the Linux kernel to a version that includes the fix for the
blk-rq-qos crash.
As a temporary workaround, consider disabling the rq qos wake function() function until a patch is available.
Restrict access to the vulnerable rq qos wait() function to minimize the risk of exploitation.
Avoid using the data->task pointer in the affected code path until the issue is resolved.Exploit
Fix
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu