CVE-2024-38384

HighCVSS 7.8/10Last modified Aug 4, 2026

Description

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

blk-cgroup: fix list corruption from reorder of WRITE ->lqueued

__blkcg_rstat_flush() can be run anytime, especially when blk_cgroup_bio_start is being executed.

If WRITE of `->lqueued` is re-ordered with READ of 'bisc->lnode.next' in the loop of __blkcg_rstat_flush(), `next_bisc` can be assigned with one stat instance being added in blk_cgroup_bio_start(), then the local list in __blkcg_rstat_flush() could be corrupted.

Fix the issue by adding one barrier.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-400

Affected software

Vendor	Product	Versions
Linux	Linux	>= 3b8cc6298724021da845f2f9fd7dd4b6829a6817, < 714e59b5456e4d6e4295a9968c564abe193f461c; >= 3b8cc6298724021da845f2f9fd7dd4b6829a6817, < 785298ab6b802afa75089239266b6bbea590809c; >= 3b8cc6298724021da845f2f9fd7dd4b6829a6817, < d0aac2363549e12cc79b8e285f13d5a9f42fd08e
Linux	Linux	6.2
linux	linux_kernel	>= 3b8cc6298724, < 714e59b5456e
linux	linux_kernel	>= 3b8cc6298724, < 785298ab6b80
linux	linux_kernel	>= 3b8cc6298724, < d0aac2363549
linux	linux_kernel	6.2
linux	linux_kernel	—
linux	linux_kernel	—
linux	linux_kernel	—
linux	linux_kernel	—

References

Timeline

Published: Jun 24, 2024
Last modified: Aug 4, 2026
NVD status: Modified

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