CVE-2022-49232
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Modified
Affected
- Linux Kernel < 4.19.238
- Linux Kernel < 5.4.189
- Linux Kernel < 5.10.110
- Linux Kernel < 5.15.33
- Linux Kernel < 5.16.19
- Linux Kernel < 5.17.2
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-49232.md and follow it. Check whether this project is affected by CVE-2022-49232. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/19a7eba284790cfbba2945deb2363cf03ce41648
- https://git.kernel.org/stable/c/2c729dec8c1e3e2892fde5ce8181553860914e74
- https://git.kernel.org/stable/c/57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9
- https://git.kernel.org/stable/c/588a70177df3b1777484267584ef38ab2ca899a2
- https://git.kernel.org/stable/c/639b3b9def0a6a3f316a195d705d14113236e89c
- https://git.kernel.org/stable/c/bdc7429708a0772d90c208975694f7c2133b1202
- https://git.kernel.org/stable/c/f4eaa999fec78dec2a9c2d797438e05cbffb125b
References
- https://git.kernel.org/stable/c/19a7eba284790cfbba2945deb2363cf03ce41648
- https://git.kernel.org/stable/c/2c729dec8c1e3e2892fde5ce8181553860914e74
- https://git.kernel.org/stable/c/57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9
- https://git.kernel.org/stable/c/588a70177df3b1777484267584ef38ab2ca899a2
- https://git.kernel.org/stable/c/639b3b9def0a6a3f316a195d705d14113236e89c
- https://git.kernel.org/stable/c/bdc7429708a0772d90c208975694f7c2133b1202
- https://git.kernel.org/stable/c/f4eaa999fec78dec2a9c2d797438e05cbffb125b