CVE-2026-89887
CVE CVE-2026-89887EUVD EUVD-2026-80487Published 2026-09-16T10:31:51.000ZLast changed 2026-09-16T14:39:37.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: media: i2c: ov7740: fix use-after-destroy in remove The ov7740_remove() function had a severe teardown order bug where it destroyed the driver's mutex before freeing the V4L2 control handler which relies on that mutex, leading to a use-after-destroy kernel panic. Furthermore, the driver explicitly called v4l2_ctrl_handler_free() and mutex_destroy() sequentially, but then called ov7740_free_controls() which invokes both of them a second time, resulting in a double-free. This patch fixes the issue by unregistering the subdevice first, and relying exclusively on ov7740_free_controls() to safely tear down the mutex and control handler in the correct order.
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 39c5c4471b8d793daf868bd004e56ed420e89707 <09453b467990e8ef8fe09f45a685f9a625248d33; patch: 6.12.110; 39c5c4471b8d793daf868bd004e56ed420e89707 <9e4693436c7dcf8584002500ce4b434b79bbf9ed; patch: 5.15.221; 39c5c4471b8d793daf868bd004e56ed420e89707 <8a02ee6c1c4e88f3a0442bd60d3c77db9a30db5e; 4.16; patch: 6.6.157; 39c5c4471b8d793daf868bd004e56ed420e89707 <7512838a19af0a284a58435292243fad21e57ff1; patch: 0; patch: 6.18.51; 39c5c4471b8d793daf868bd004e56ed420e89707 <5d1b3dea5a44124bab6c14a2d71b977dabed54e7; patch: 6.1.188; patch: 7.3-rc1; patch: 5.10.270; 39c5c4471b8d793daf868bd004e56ed420e89707 <af81f35e4f429e769b784754e1aa4d7a922470ac; 39c5c4471b8d793daf868bd004e56ed420e89707 <81e9765878d3ac8ad18e3a683332b5d6bc3a0e33; patch: 7.2.5; 39c5c4471b8d793daf868bd004e56ed420e89707 <25e2505866c577db2661e4d431f0907c6ec9a3b4
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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