CVE-2026-89870media: zoran: Avoid freeing a registered video_device twice
- 7.8HighCVSS base score
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: media: zoran: Avoid freeing a registered video_device twice zoran_init_video_device() installs zoran_vdev_release() as the video_device release callback through zoran_template. After video_register_device() succeeds, video_unregister_device() drops the registered video_device reference and the V4L2 core eventually invokes that release callback, which kfree()s the video_device. zoran_exit_video_devices() called video_unregister_device() and then kfree(zr->video_dev), so device teardown could free the same video_device twice. Remove the direct kfree() and clear the cached pointer after unregistering. The pre-registration failure path keeps its manual free because the video_device was not registered there. This issue was found by a static analysis checker and confirmed by manual source review.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 44 days later
· 44 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected bd01629315ffd5b63da91d0bd529a77d30e55028 – < 29792762e65d4eefbe75b6048c59763fd844191a
- affected ff3357bffd9fb78f59762d8955afc7382a279079 – < 99277a387802eb6c1907c73f09d746908cc64913
- affected 82e3a496eb56da0b9f29fdc5b63cedb3289e91de – < 3ad6cf27505017a6794f5f96c31218c2291e951b
- affected 82e3a496eb56da0b9f29fdc5b63cedb3289e91de – < c4acac8cdc005b2d14b6cef5e215d264212857f3
- affected 82e3a496eb56da0b9f29fdc5b63cedb3289e91de – < 4d99d8d0d895489064783601a516bd45812fa992
- affected 82e3a496eb56da0b9f29fdc5b63cedb3289e91de – < f1c4f3885df1f09bcab5296d86834d104f865e86
- affected 82e3a496eb56da0b9f29fdc5b63cedb3289e91de – < 672dbccf4351370dad002d3c78dbb29ca1588f22
- affected 82e3a496eb56da0b9f29fdc5b63cedb3289e91de – < 0735e0b5a96761a9ce277a238e834008ad92a0a5
- affected c1ba65100a359fe28cfe37e09e10c99f247cbf1e
- affected 1e501ec38796f43e995731d1bcd4173cb1ccfce0
- affected 5.10.110 – < 5.10.273
- affected 5.15.33 – < 5.15.224
- affected 5.16.19 – < 5.17
- affected 5.17.2 – < 5.18
- affected 5.18
- unaffected < 5.18
- unaffected 5.10.273 – ≤ 5.10.*
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.51 – ≤ 6.18.*
- unaffected 7.2.5 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/29792762e65d4eefbe75b6048c59763fd844191a (opens in a new tab)
- https://git.kernel.org/stable/c/99277a387802eb6c1907c73f09d746908cc64913 (opens in a new tab)
- https://git.kernel.org/stable/c/3ad6cf27505017a6794f5f96c31218c2291e951b (opens in a new tab)
- https://git.kernel.org/stable/c/c4acac8cdc005b2d14b6cef5e215d264212857f3 (opens in a new tab)
- https://git.kernel.org/stable/c/4d99d8d0d895489064783601a516bd45812fa992 (opens in a new tab)
- https://git.kernel.org/stable/c/f1c4f3885df1f09bcab5296d86834d104f865e86 (opens in a new tab)
- https://git.kernel.org/stable/c/672dbccf4351370dad002d3c78dbb29ca1588f22 (opens in a new tab)
- https://git.kernel.org/stable/c/0735e0b5a96761a9ce277a238e834008ad92a0a5 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-80470 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-89870)Record last updated .