CVE-2022-49232
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…
Does this matter?
Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/19a7eba284790cfbba2945deb2363cf03ce41648Patch
- https://git.kernel.org/stable/c/2c729dec8c1e3e2892fde5ce8181553860914e74Patch
- https://git.kernel.org/stable/c/57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9Patch
- https://git.kernel.org/stable/c/588a70177df3b1777484267584ef38ab2ca899a2Patch
- https://git.kernel.org/stable/c/639b3b9def0a6a3f316a195d705d14113236e89cPatch
- https://git.kernel.org/stable/c/bdc7429708a0772d90c208975694f7c2133b1202Patch
- https://git.kernel.org/stable/c/f4eaa999fec78dec2a9c2d797438e05cbffb125bPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.