CVE-2026-68233
Unknown
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().
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedAug 10, 2026
First seenAug 10, 2026
How to fix
Update
- Linux Linux948cd4876dafbfab826384516df19fe813d9f1d1, cf55c6f1b62a89bf365c48bf731ccf69340e3a16, e9264ee59bd94970b80b7548f693bccf0d4628da, a38f2724eb93a78ba250b01e0caf3468df4d3956, bac4c1a9af690b8635c6924872075c41d8763ed9, 6273dd3ffb54ec581855b82ae77331b66028249c or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | c826a6e1064419f78855463cf29ce9e8b9d25bf4 ≤ v < 948cd4876dafbfab826384516df19fe813d9f1d1, c826a6e1064419f78855463cf29ce9e8b9d25bf4 ≤ v < cf55c6f1b62a89bf365c48bf731ccf69340e3a16, c826a6e1064419f78855463cf29ce9e8b9d25bf4 ≤ v < e9264ee59bd94970b80b7548f693bccf0d4628da, c826a6e1064419f78855463cf29ce9e8b9d25bf4 ≤ v < a38f2724eb93a78ba250b01e0caf3468df4d3956, c826a6e1064419f78855463cf29ce9e8b9d25bf4 ≤ v < bac4c1a9af690b8635c6924872075c41d8763ed9, c826a6e1064419f78855463cf29ce9e8b9d25bf4 ≤ v < 6273dd3ffb54ec581855b82ae77331b66028249c, 4.5 | 948cd4876dafbfab826384516df19fe813d9f1d1, cf55c6f1b62a89bf365c48bf731ccf69340e3a16, e9264ee59bd94970b80b7548f693bccf0d4628da, a38f2724eb93a78ba250b01e0caf3468df4d3956, bac4c1a9af690b8635c6924872075c41d8763ed9, 6273dd3ffb54ec581855b82ae77331b66028249c |
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