CVE-2024-45015
"Linux Kernel DRM MSM DPU NULL Pointer Bug"
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/
INFO
Published Date :
Sept. 11, 2024, 4:15 p.m.
Last Modified :
Sept. 13, 2024, 4:35 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
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CVE-2024-45015
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The following list is the news that have been mention
CVE-2024-45015
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-45015
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 13, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/3bacf814b6a61cc683c68465f175ebd938f09c52 No Types Assigned https://git.kernel.org/stable/c/3bacf814b6a61cc683c68465f175ebd938f09c52 Patch Changed Reference Type https://git.kernel.org/stable/c/3fb61718bcbe309279205d1cc275a6435611dc77 No Types Assigned https://git.kernel.org/stable/c/3fb61718bcbe309279205d1cc275a6435611dc77 Patch Changed Reference Type https://git.kernel.org/stable/c/aedf02e46eb549dac8db4821a6b9f0c6bf6e3990 No Types Assigned https://git.kernel.org/stable/c/aedf02e46eb549dac8db4821a6b9f0c6bf6e3990 Patch Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19 up to (excluding) 6.6.48 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.10.7 *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:*:*:*:*:*:* -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 11, 2024
Action Type Old Value New Value Added 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/ Added Reference kernel.org https://git.kernel.org/stable/c/3fb61718bcbe309279205d1cc275a6435611dc77 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3bacf814b6a61cc683c68465f175ebd938f09c52 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/aedf02e46eb549dac8db4821a6b9f0c6bf6e3990 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-45015
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-45015
weaknesses.