In the Linux kernel, the following vulnerability has been resolved:
drm/msm/dpu: move dpu_encoder's connector assignment to atomic_enable()
For cases where the crtc's connectors_changed was set without enable/active
getting toggled , there is an atomic_enable() call followed by an
atomic_disable() but without an atomic_mode_set().
This results in a NULL ptr access for the dpu_encoder_get_drm_fmt() call in
the atomic_enable() as the dpu_encoder's connector was cleared in the
atomic_disable() but not re-assigned as there was no atomic_mode_set() call.
Fix the NULL ptr access by moving the assignment for atomic_enable() and also
use drm_atomic_get_new_connector_for_encoder() to get the connector from
the atomic_state.
Patchwork: https://patchwork.freedesktop.org/patch/606729/
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References
History
Sun, 29 Sep 2024 16:30:00 +0000
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ssvc
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Fri, 13 Sep 2024 17:00:00 +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:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:* |
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Vendors & Products |
Linux
Linux linux Kernel |
Wed, 11 Sep 2024 21:45:00 +0000
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threat_severity
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cvssV3_1
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Wed, 11 Sep 2024 15:30:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: move dpu_encoder's connector assignment to atomic_enable() For cases where the crtc's connectors_changed was set without enable/active getting toggled , there is an atomic_enable() call followed by an atomic_disable() but without an atomic_mode_set(). This results in a NULL ptr access for the dpu_encoder_get_drm_fmt() call in the atomic_enable() as the dpu_encoder's connector was cleared in the atomic_disable() but not re-assigned as there was no atomic_mode_set() call. Fix the NULL ptr access by moving the assignment for atomic_enable() and also use drm_atomic_get_new_connector_for_encoder() to get the connector from the atomic_state. Patchwork: https://patchwork.freedesktop.org/patch/606729/ | |
Title | drm/msm/dpu: move dpu_encoder's connector assignment to atomic_enable() | |
References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2024-12-19T09:20:16.560Z
Reserved: 2024-08-21T05:34:56.682Z
Link: CVE-2024-45015

Updated: 2024-09-29T15:49:39.532Z

Status : Analyzed
Published: 2024-09-11T16:15:06.763
Modified: 2024-09-13T16:35:58.617
Link: CVE-2024-45015
