CVE-2026-89874
CVE CVE-2026-89874EUVD EUVD-2026-80474Published 2026-09-16T10:31:42.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: media: v4l2-async: avoid deleting unlinked ASC entry on link error v4l2_async_match_notify() creates ancillary media links before adding asc->asc_subdev_entry to sd->asc_list. If ancillary link creation fails, the function jumps to err_call_unbind while asc_subdev_entry has not been linked yet. Async connections are zero-allocated, so the list entry still has NULL next and prev pointers on this path. Calling list_del() on it can therefore dereference NULL instead of returning the original link creation error. Do not delete asc_subdev_entry from err_call_unbind. There is no list insertion to undo on this path; the bound callback and sub-device registration are the operations that need to be rolled back.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 28a1295795d85a25f2e7dd391c43969e95fcb341 <a57d94026cb4fd7b3d258f0db2ad391cbccfaba5; patch: 7.3-rc1; patch: 0; 28a1295795d85a25f2e7dd391c43969e95fcb341 <caac13f518d83974e9884d1eeda3d4cc3bb92978; 28a1295795d85a25f2e7dd391c43969e95fcb341 <d273571e531405426983c6a45ec635c7d0415eed; 6.6; patch: 6.12.110; patch: 7.2.5; 28a1295795d85a25f2e7dd391c43969e95fcb341 <3345746e0957bce6c53644838e4955710a82a962; patch: 6.18.51; 28a1295795d85a25f2e7dd391c43969e95fcb341 <47d82b605351c0e04f6365e42c8ffe2fcfdba615; patch: 6.6.157
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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