CVE-2026-68233drm/vc4: Shut down BO cache timer before teardown
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Shut down BO cache timer before teardown The BO cache timer callback schedules time_work, and time_work can rearm the timer through vc4_bo_cache_free_old(). vc4_bo_cache_destroy() deletes the timer and then cancels the work, which does not break that cycle: the work being cancelled can rearm the timer, and the timer then queues work again after teardown. Use timer_shutdown_sync() instead, so the timer cannot be rearmed and the cycle ends with cancel_work_sync().
Timeline
ID reserved
By Linux
- 11 days later
· 11 days later
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 93% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected c826a6e1064419f78855463cf29ce9e8b9d25bf4 – < 948cd4876dafbfab826384516df19fe813d9f1d1
- affected c826a6e1064419f78855463cf29ce9e8b9d25bf4 – < cf55c6f1b62a89bf365c48bf731ccf69340e3a16
- affected c826a6e1064419f78855463cf29ce9e8b9d25bf4 – < e9264ee59bd94970b80b7548f693bccf0d4628da
- affected c826a6e1064419f78855463cf29ce9e8b9d25bf4 – < a38f2724eb93a78ba250b01e0caf3468df4d3956
- affected c826a6e1064419f78855463cf29ce9e8b9d25bf4 – < bac4c1a9af690b8635c6924872075c41d8763ed9
- affected c826a6e1064419f78855463cf29ce9e8b9d25bf4 – < 6273dd3ffb54ec581855b82ae77331b66028249c
- affected 4.5
- unaffected < 4.5
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.42 – ≤ 6.18.*
- unaffected 7.1.6 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References6
- https://git.kernel.org/stable/c/948cd4876dafbfab826384516df19fe813d9f1d1 (opens in a new tab)
- https://git.kernel.org/stable/c/cf55c6f1b62a89bf365c48bf731ccf69340e3a16 (opens in a new tab)
- https://git.kernel.org/stable/c/e9264ee59bd94970b80b7548f693bccf0d4628da (opens in a new tab)
- https://git.kernel.org/stable/c/a38f2724eb93a78ba250b01e0caf3468df4d3956 (opens in a new tab)
- https://git.kernel.org/stable/c/bac4c1a9af690b8635c6924872075c41d8763ed9 (opens in a new tab)
- https://git.kernel.org/stable/c/6273dd3ffb54ec581855b82ae77331b66028249c (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-55334 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-68233)Record last updated .