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.
Metrics
Affected Vendors & Products
References
History
Tue, 25 Mar 2025 03:00:00 +0000
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threat_severity
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Tue, 18 Mar 2025 19:45:00 +0000
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First Time appeared |
Linux
Linux linux Kernel |
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Weaknesses | CWE-476 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
Vendors & Products |
Linux
Linux linux Kernel |
Fri, 28 Feb 2025 14:00:00 +0000
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threat_severity
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cvssV3_1
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Wed, 26 Feb 2025 02:15:00 +0000
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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. | |
Title | drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes() | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-02-26T01:55:58.618Z
Updated: 2025-02-26T01:55:58.618Z
Reserved: 2025-02-26T01:49:39.293Z
Link: CVE-2022-49232

No data.

Status : Analyzed
Published: 2025-02-26T07:01:00.217
Modified: 2025-03-18T19:26:49.880
Link: CVE-2022-49232
