CVE-2022-49232

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Source
https://cve.org/CVERecord?id=CVE-2022-49232
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49232.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49232
Downstream
Related
Published
2025-02-26T01:55:58.618Z
Modified
2026-03-12T03:24:48.121401Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes()
Details

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Fix a NULL pointer dereference in amdgpudmconnectoraddcommon_modes()

In amdgpudmconnectoraddcommonmodes(), amdgpudmcreatecommonmode() is assigned to mode and is passed to drmmodeprobedadd() directly after that. drmmodeprobedadd() passes &mode->head to listaddtail(), and there is a dereference of it in listaddtail() without recoveries, which could lead to NULL pointer dereference on failure of amdgpudmcreatecommon_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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49232.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e7b07ceef2a650e5ed8ca37997689e086c680daf
Fixed
2c729dec8c1e3e2892fde5ce8181553860914e74
Fixed
57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9
Fixed
19a7eba284790cfbba2945deb2363cf03ce41648
Fixed
bdc7429708a0772d90c208975694f7c2133b1202
Fixed
f4eaa999fec78dec2a9c2d797438e05cbffb125b
Fixed
639b3b9def0a6a3f316a195d705d14113236e89c
Fixed
588a70177df3b1777484267584ef38ab2ca899a2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49232.json"