media: i2c: ov7740: fix use-after-destroy in remove (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 6 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
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.
References
- https://git.kernel.org/stable/c/9e4693436c7dcf8584002500ce4b434b79bbf9ed
- https://git.kernel.org/stable/c/81e9765878d3ac8ad18e3a683332b5d6bc3a0e33
- https://git.kernel.org/stable/c/8a02ee6c1c4e88f3a0442bd60d3c77db9a30db5e
- https://git.kernel.org/stable/c/7512838a19af0a284a58435292243fad21e57ff1
- https://git.kernel.org/stable/c/25e2505866c577db2661e4d431f0907c6ec9a3b4
- https://git.kernel.org/stable/c/af81f35e4f429e769b784754e1aa4d7a922470ac
- https://git.kernel.org/stable/c/09453b467990e8ef8fe09f45a685f9a625248d33
- https://git.kernel.org/stable/c/5d1b3dea5a44124bab6c14a2d71b977dabed54e7
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-80487
- GCVE · GCVE-0-2026-89887
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 39c5c4471b8d793daf868bd004e56ed420e89707 < 9e4693436c7dcf8584002500ce4b434b79bbf9ed ; affected 39c5c4471b8d793daf868bd004e56ed420e89707 < 81e9765878d3ac8ad18e3a683332b5d6bc3a0e33 ; affected 39c5c4471b8d793daf868bd004e56ed420e89707 < 8a02ee6c1c4e88f3a0442bd60d3c77db9a30db5e ; affected 39c5c4471b8d793daf868bd004e56ed420e89707 < 7512838a19af0a284a58435292243fad21e57ff1 ; affected 39c5c4471b8d793daf868bd004e56ed420e89707 < 25e2505866c577db2661e4d431f0907c6ec9a3b4 ; affected 39c5c4471b8d793daf868bd004e56ed420e89707 < af81f35e4f429e769b784754e1aa4d7a922470ac |
| Linux · Linux | affected 4.16 ; unaffected 0 < 4.16 ; unaffected 5.10.270 ≤ 5.10.* ; unaffected 5.15.221 ≤ 5.15.* ; unaffected 6.1.188 ≤ 6.1.* ; unaffected 6.6.157 ≤ 6.6.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |