CVE-2022-49232
drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes() In amdgpu_dm_connector_add_common_modes(), amdgpu_dm_create_common_mode() is assigned to mode and is passed to drm_mode_probed_add() directly after that. drm_mode_probed_add() passes &mode->head to list_add_tail(), and there is a dereference of it in list_add_tail() without recoveries, which could lead to NULL pointer dereference on failure of amdgpu_dm_create_common_mode(). Fix this by adding a NULL check of mode. This bug was found by a static analyzer. Builds with 'make allyesconfig' show no new warnings, and our static analyzer no longer warns about this code.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected e7b07ceef2a650e5ed8ca37997689e086c680daf – < 2c729dec8c1e3e2892fde5ce8181553860914e74
- affected e7b07ceef2a650e5ed8ca37997689e086c680daf – < 57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9
- affected e7b07ceef2a650e5ed8ca37997689e086c680daf – < 19a7eba284790cfbba2945deb2363cf03ce41648
- affected e7b07ceef2a650e5ed8ca37997689e086c680daf – < bdc7429708a0772d90c208975694f7c2133b1202
- affected e7b07ceef2a650e5ed8ca37997689e086c680daf – < f4eaa999fec78dec2a9c2d797438e05cbffb125b
- affected e7b07ceef2a650e5ed8ca37997689e086c680daf – < 639b3b9def0a6a3f316a195d705d14113236e89c
- affected e7b07ceef2a650e5ed8ca37997689e086c680daf – < 588a70177df3b1777484267584ef38ab2ca899a2
- affected 4.15
- unaffected < 4.15
- unaffected 4.19.238 – ≤ 4.19.*
- unaffected 5.4.189 – ≤ 5.4.*
- unaffected 5.10.110 – ≤ 5.10.*
- unaffected 5.15.33 – ≤ 5.15.*
- unaffected 5.16.19 – ≤ 5.16.*
- unaffected 5.17.2 – ≤ 5.17.*
- unaffected 5.18 – ≤ *
References (7)
- https://git.kernel.org/stable/c/2c729dec8c1e3e2892fde5ce8181553860914e74 (opens in a new tab)
- https://git.kernel.org/stable/c/57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9 (opens in a new tab)
- https://git.kernel.org/stable/c/19a7eba284790cfbba2945deb2363cf03ce41648 (opens in a new tab)
- https://git.kernel.org/stable/c/bdc7429708a0772d90c208975694f7c2133b1202 (opens in a new tab)
- https://git.kernel.org/stable/c/f4eaa999fec78dec2a9c2d797438e05cbffb125b (opens in a new tab)
- https://git.kernel.org/stable/c/639b3b9def0a6a3f316a195d705d14113236e89c (opens in a new tab)
- https://git.kernel.org/stable/c/588a70177df3b1777484267584ef38ab2ca899a2 (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-2022-49232)Record last updated .