{"id":"CVE-2023-54088","title":"blk-cgroup: hold queue_lock when removing blkg->q_node","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: hold queue_lock when removing blkg->q_node\n\nWhen blkg is removed from q->blkg_list from blkg_free_workfn(), queue_lock\nhas to be held, otherwise, all kinds …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 81c1188905f88b77743d1fdeeedfc8cb7b67787d < b5dae1cd0d8368b4338430ff93403df67f0b8bcc","Linux >= bfe46d2efe46c5c952f982e2ca94fe2ec5e58e2a < 083b58373463a6e5ee60ecb135269348f68ad7df","Linux >= f1c006f1c6850c14040f8337753a63119bba39b9 < cd4ffdf56791eec95af01f06bee1ec7665ca75c4","Linux >= f1c006f1c6850c14040f8337753a63119bba39b9 < c164c7bc9775be7bcc68754bb3431fce5823822e","Linux >= 6.1.16 < 6.1.17","Linux >= 6.2.3 < 6.2.4","Linux 6.3"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:38:17.912163Z"},"published":"2025-12-24","updated":"2026-10-15","sourceUpdated":"2026-10-15T21:41:39.244Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-54088","references":[{"url":"https://git.kernel.org/stable/c/b5dae1cd0d8368b4338430ff93403df67f0b8bcc"},{"url":"https://git.kernel.org/stable/c/083b58373463a6e5ee60ecb135269348f68ad7df"},{"url":"https://git.kernel.org/stable/c/cd4ffdf56791eec95af01f06bee1ec7665ca75c4"},{"url":"https://git.kernel.org/stable/c/c164c7bc9775be7bcc68754bb3431fce5823822e"}],"tags":["cve.org"],"epss":0.00165,"epssPercentile":0.05386,"ingestedAt":"2026-10-15T22:48:25.428Z","slug":"CVE-2023-54088","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: hold queue_lock when removing blkg->q_node\n\nWhen blkg is removed from q->blkg_list from blkg_free_workfn(), queue_lock\nhas to be held, otherwise, all kinds of bugs(list corruption, hard lockup,\n..) can be triggered from blkg_destroy_all().\n\n## Affected\n\n- `Linux >= 81c1188905f88b77743d1fdeeedfc8cb7b67787d < b5dae1cd0d8368b4338430ff93403df67f0b8bcc`\n- `Linux >= bfe46d2efe46c5c952f982e2ca94fe2ec5e58e2a < 083b58373463a6e5ee60ecb135269348f68ad7df`\n- `Linux >= f1c006f1c6850c14040f8337753a63119bba39b9 < cd4ffdf56791eec95af01f06bee1ec7665ca75c4`\n- `Linux >= f1c006f1c6850c14040f8337753a63119bba39b9 < c164c7bc9775be7bcc68754bb3431fce5823822e`\n- `Linux >= 6.1.16 < 6.1.17`\n- `Linux >= 6.2.3 < 6.2.4`\n- `Linux 6.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}