CVE-2026-89823

CVE CVE-2026-89823EUVD EUVD-2026-80423Published 2026-09-16T10:30:55.000ZLast changed 2026-09-16T14:39:02.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: drm: fix race between partial drm_dev_register() failure and ioctl If drm_dev_register() fails after registering a minor (e.g. render minor registered, primary minor fails), userspace could have opened the first minor and entered a drm_dev_enter() critical section. Since the unplugged flag was never set, the ioctl proceeds while the error path tears down device resources. Fix this by introducing drm_dev_synchronize_unplug(), which sets the unplugged flag and waits for the SRCU barrier, ensuring all in-flight drm_dev_enter() critical sections complete before cleanup proceeds; call it on the error path of drm_dev_register().

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 patch: 7.2.5; bee330f3d67273a68dcb99f59480d59553c008b2 <eb197f7d60f00d0f5b1b3505dfc86a7e36045a3e; patch: 6.18.51; patch: 0; bee330f3d67273a68dcb99f59480d59553c008b2 <24d28d15c0f7f7d4a1c229f8730314f0f8758810; bee330f3d67273a68dcb99f59480d59553c008b2 <6729990df9e70623bf53f855b521ae71ca9cb278; bee330f3d67273a68dcb99f59480d59553c008b2 <26d9162213952927cd59c0d94b7e0e992b347bec; bee330f3d67273a68dcb99f59480d59553c008b2 <19dbfe4d586aecfed121cb3fa62281761d9d341f; bee330f3d67273a68dcb99f59480d59553c008b2 <a0a7e2e177f2f18b9e7318a4c64ac44efd9ef22c; patch: 5.15.221; patch: 7.3-rc1; patch: 6.6.157; bee330f3d67273a68dcb99f59480d59553c008b2 <79d09cfe90304ff4f195e47d569800f5e0f8b854; patch: 5.10.270; bee330f3d67273a68dcb99f59480d59553c008b2 <2d1215a72159d00001e08dee162e27718934bee9; patch: 6.1.188; patch: 6.12.110; 4.18

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

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Linux — Linux

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