CVE-2022-49490 (GCVE-0-2022-49490)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2026-05-11 19:00
VLAI?
Title
drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected
Summary
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/
Severity ?
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 7907a0d77cb461f58045763c205a5830be72e97c , < 776f5c58bfe16cf322d71eeed3c5dda1eeac7e6b (git)
Affected: 7907a0d77cb461f58045763c205a5830be72e97c , < b2aa2c4efe93e2580d6a8774b04fe2b99756a322 (git)
Affected: 7907a0d77cb461f58045763c205a5830be72e97c , < 49dc28b4b2e28ef7564e355c91487996c1cbebd7 (git)
Affected: 7907a0d77cb461f58045763c205a5830be72e97c , < 04bef5f1ba8ea6d7c1c8f5f65e0395c62db59cb8 (git)
Affected: 7907a0d77cb461f58045763c205a5830be72e97c , < 19964dfb39bda4d7716a71009488f0668ecbcf52 (git)
Affected: 7907a0d77cb461f58045763c205a5830be72e97c , < 33dc5aac46e0fad8f5eb193e5906ed0eb6b66ceb (git)
Affected: 7907a0d77cb461f58045763c205a5830be72e97c , < d59be579fa932c46b908f37509f319cbd4ca9a68 (git)
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Linux Linux Affected: 4.18
Unaffected: 0 , < 4.18 (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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