CVE-2022-50417
drm/panfrost: Fix GEM handle creation ref-counting
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix GEM handle creation ref-counting panfrost_gem_create_with_handle() previously returned a BO but with the only reference being from the handle, which user space could in theory guess and release, causing a use-after-free. Additionally if the call to panfrost_gem_mapping_get() in panfrost_ioctl_create_bo() failed then a(nother) reference on the BO was dropped. The _create_with_handle() is a problematic pattern, so ditch it and instead create the handle in panfrost_ioctl_create_bo(). If the call to panfrost_gem_mapping_get() fails then this means that user space has indeed gone behind our back and freed the handle. In which case just return an error code.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 11 months later
· 11 months 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 |
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 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)
- 0.16% · top 94% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected f3ba91228e8e917e5bd6c4b72bfe846933d17370 – < 0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c
- affected f3ba91228e8e917e5bd6c4b72bfe846933d17370 – < 4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a
- affected f3ba91228e8e917e5bd6c4b72bfe846933d17370 – < 3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2
- affected f3ba91228e8e917e5bd6c4b72bfe846933d17370 – < ba3d2c2380e7129b525a787489c0b7e819a3b898
- affected f3ba91228e8e917e5bd6c4b72bfe846933d17370 – < 4217c6ac817451d5116687f3cc6286220dc43d49
- affected 5.2
- unaffected < 5.2
- unaffected 5.10.163 – ≤ 5.10.*
- unaffected 5.15.87 – ≤ 5.15.*
- unaffected 6.0.19 – ≤ 6.0.*
- unaffected 6.1.5 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References (5)
- https://git.kernel.org/stable/c/0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c (opens in a new tab)
- https://git.kernel.org/stable/c/4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a (opens in a new tab)
- https://git.kernel.org/stable/c/3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2 (opens in a new tab)
- https://git.kernel.org/stable/c/ba3d2c2380e7129b525a787489c0b7e819a3b898 (opens in a new tab)
- https://git.kernel.org/stable/c/4217c6ac817451d5116687f3cc6286220dc43d49 (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)
- 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://trackcve.app/cve/CVE-2022-50417)Record last updated .