Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e7b07ceef2a650e5ed8ca37997689e086c680daf before 2c729dec8c1e3e2892fde5ce8181553860914e74; affected e7b07ceef2a650e5ed8ca37997689e086c680daf before 57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9; affected e7b07ceef2a650e5ed8ca37997689e086c680daf before 19a7eba284790cfbba2945deb2363cf03ce41648; affected e7b07ceef2a650e5ed8ca37997689e086c680daf before bdc7429708a0772d90c208975694f7c2133b1202; affected e7b07ceef2a650e5ed8ca37997689e086c680daf before f4eaa999fec78dec2a9c2d797438e05cbffb125b; affected e7b07ceef2a650e5ed8ca37997689e086c680daf before 639b3b9def0a6a3f316a195d705d14113236e89c; affected e7b07ceef2a650e5ed8ca37997689e086c680daf before 588a70177df3b1777484267584ef38ab2ca899a2 |
| Linux / Linux | affected 4.15; unaffected 0 before 4.15; unaffected 4.19.238 through 4.19.*; unaffected 5.4.189 through 5.4.*; unaffected 5.10.110 through 5.10.*; unaffected 5.15.33 through 5.15.*; unaffected 5.16.19 through 5.16.*; unaffected 5.17.2 through 5.17.*; unaffected 5.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2c729dec8c1e3e2892fde5ce8181553860914e74
- https://git.kernel.org/stable/c/57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9
- https://git.kernel.org/stable/c/19a7eba284790cfbba2945deb2363cf03ce41648
- https://git.kernel.org/stable/c/bdc7429708a0772d90c208975694f7c2133b1202
- https://git.kernel.org/stable/c/f4eaa999fec78dec2a9c2d797438e05cbffb125b
- https://git.kernel.org/stable/c/639b3b9def0a6a3f316a195d705d14113236e89c
- https://git.kernel.org/stable/c/588a70177df3b1777484267584ef38ab2ca899a2
ADP enrichment
No English description supplied.
No references supplied.