CVE - CVE-2022-49490

CVE-ID
CVE-2022-49490	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected mdp5_get_global_state runs the risk of hitting a -EDEADLK when acquiring the modeset lock, but currently mdp5_pipe_release doesn't check for if an error is returned. Because of this, there is a possibility of mdp5_pipe_release hitting a NULL dereference error. To avoid this, let's have mdp5_pipe_release check if mdp5_get_global_state returns an error and propogate that error. Changes since v1: - Separated declaration and initialization of *new_state to avoid compiler warning - Fixed some spelling mistakes in commit message Changes since v2: - Return 0 in case where hwpipe is NULL as this is considered normal behavior - Added 2nd patch in series to fix a similar NULL dereference issue in mdp5_mixer_release Patchwork: https://patchwork.freedesktop.org/patch/485179/
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/04bef5f1ba8ea6d7c1c8f5f65e0395c62db59cb8 URL:https://git.kernel.org/stable/c/04bef5f1ba8ea6d7c1c8f5f65e0395c62db59cb8 MISC:https://git.kernel.org/stable/c/19964dfb39bda4d7716a71009488f0668ecbcf52 URL:https://git.kernel.org/stable/c/19964dfb39bda4d7716a71009488f0668ecbcf52 MISC:https://git.kernel.org/stable/c/33dc5aac46e0fad8f5eb193e5906ed0eb6b66ceb URL:https://git.kernel.org/stable/c/33dc5aac46e0fad8f5eb193e5906ed0eb6b66ceb MISC:https://git.kernel.org/stable/c/49dc28b4b2e28ef7564e355c91487996c1cbebd7 URL:https://git.kernel.org/stable/c/49dc28b4b2e28ef7564e355c91487996c1cbebd7 MISC:https://git.kernel.org/stable/c/776f5c58bfe16cf322d71eeed3c5dda1eeac7e6b URL:https://git.kernel.org/stable/c/776f5c58bfe16cf322d71eeed3c5dda1eeac7e6b MISC:https://git.kernel.org/stable/c/b2aa2c4efe93e2580d6a8774b04fe2b99756a322 URL:https://git.kernel.org/stable/c/b2aa2c4efe93e2580d6a8774b04fe2b99756a322 MISC:https://git.kernel.org/stable/c/d59be579fa932c46b908f37509f319cbd4ca9a68 URL:https://git.kernel.org/stable/c/d59be579fa932c46b908f37509f319cbd4ca9a68
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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