{"id":"CVE-2026-89887","published":"2026-09-16T11:16:57.210","lastModified":"2026-09-16T15:18:15.230","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: i2c: ov7740: fix use-after-destroy in remove\n\nThe ov7740_remove() function had a severe teardown order bug where it\ndestroyed the driver's mutex before freeing the V4L2 control handler\nwhich relies on that mutex, leading to a use-after-destroy kernel panic.\nFurthermore, the driver explicitly called v4l2_ctrl_handler_free() and\nmutex_destroy() sequentially, but then called ov7740_free_controls()\nwhich invokes both of them a second time, resulting in a double-free.\n\nThis patch fixes the issue by unregistering the subdevice first, and\nrelying exclusively on ov7740_free_controls() to safely tear down the\nmutex and control handler in the correct order.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/09453b467990e8ef8fe09f45a685f9a625248d33","tags":[]},{"url":"https://git.kernel.org/stable/c/25e2505866c577db2661e4d431f0907c6ec9a3b4","tags":[]},{"url":"https://git.kernel.org/stable/c/5d1b3dea5a44124bab6c14a2d71b977dabed54e7","tags":[]},{"url":"https://git.kernel.org/stable/c/7512838a19af0a284a58435292243fad21e57ff1","tags":[]},{"url":"https://git.kernel.org/stable/c/81e9765878d3ac8ad18e3a683332b5d6bc3a0e33","tags":[]},{"url":"https://git.kernel.org/stable/c/8a02ee6c1c4e88f3a0442bd60d3c77db9a30db5e","tags":[]},{"url":"https://git.kernel.org/stable/c/9e4693436c7dcf8584002500ce4b434b79bbf9ed","tags":[]},{"url":"https://git.kernel.org/stable/c/af81f35e4f429e769b784754e1aa4d7a922470ac","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}