5.5

CVE-2022-49488

drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected

In the Linux kernel, the following vulnerability has been resolved:

drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected

There is a possibility for mdp5_get_global_state to return
-EDEADLK when acquiring the modeset lock, but currently global_state in
mdp5_mixer_release doesn't check for if an error is returned.

To avoid a NULL dereference error, let's have mdp5_mixer_release
check if an error is returned and propagate that error.

Patchwork: https://patchwork.freedesktop.org/patch/485181/
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.18 < 4.19.247
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.198
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.121
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.46
Linux ≫ Linux Kernel Version >= 5.16 < 5.17.14
Linux ≫ Linux Kernel Version >= 5.18 < 5.18.3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.166
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/09bdeedc1fc53e64b8282e1de67752c69e43bdba
Patch
https://git.kernel.org/stable/c/1a5d1474026ea4f1a6f931075ca2adb884af39cf
Patch
https://git.kernel.org/stable/c/22d8424913b1348c6324916745fadaeea5273f0e
Patch
https://git.kernel.org/stable/c/46e5ce63924a96af452c4fc5ee0bb3b241e1b9f4
Patch
https://git.kernel.org/stable/c/47e393061049aff6818d1b9fdca7351411a23fc2
Patch
https://git.kernel.org/stable/c/883f1d52a57bf51e1d7a80c432345e2c6222477e
Patch
https://git.kernel.org/stable/c/ca75f6f7c6f89365e40f10f641b15981b1f07c31
Patch