CVE-2024-35974 - CVE House
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Status published Unknown CVE-2024-35974

block: fix q->blkg_list corruption during disk rebind

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: block: fix q->blkg_list corruption during disk rebind Multiple gendisk instances can allocated/added for single request queue in case of disk rebind. blkg may still stay in q->blkg_list when calling blkcg_init_disk() for rebind, then q->blkg_list becomes corrupted. Fix the list corruption issue by: - add blkg_init_queue() to initialize q->blkg_list & q->blkcg_mutex only - move calling blkg_init_queue() into blk_alloc_queue() The list corruption should be started since commit f1c006f1c685 ("blk-cgroup: synchronize pd_free_fn() from blkg_free_workfn() and blkcg_deactivate_policy()") which delays removing blkg from q->blkg_list into blkg_free_workfn().

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
81c1188905f88b77743d1fdeeedfc8cb7b67787d, bfe46d2efe46c5c952f982e2ca94fe2ec5e58e2a, 1059699f87eb0b3aa9d574b91a572d534897134a, 6.1.16, 6.2.3, 5.18, 0, 6.1.17, 6.2.4, 6.6.28, 6.8.7, 6.9

Timeline

Official Publish: May 20th, 2024
Last Modified: May 23rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.