5.5

CVE-2022-50173: drm/msm/mdp5: Fix global state lock backoff

Analyzed
AliasesUBUNTU-CVE-2022-50173DEBIAN-CVE-2022-50173
Published 18-06-2025Last modified 23-05-2026

Vulnerability summary

CVE-2022-50173 is a medium (CVSS 5.5) Improper Locking vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.19%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 7
SUSE-SU-2025:02264-1SUSE-SU-2025:02308-1SUSE-SU-2025:02320-1SUSE-SU-2025:02321-1SUSE-SU-2025:02322-1SUSE-SU-2025:02334-1

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Fix global state lock backoff We need to grab the lock after the early return for !hwpipe case. Otherwise, we could have hit contention yet still returned 0. Fixes an issue that the new CONFIG_DRM_DEBUG_MODESET_LOCK stuff flagged in CI: WARNING: CPU: 0 PID: 282 at drivers/gpu/drm/drm_modeset_lock.c:296 drm_modeset_lock+0xf8/0x154 Modules linked in: CPU: 0 PID: 282 Comm: kms_cursor_lega Tainted: G W 5.19.0-rc2-15930-g875cc8bc536a #1 Hardware name: Qualcomm Technologies, Inc. DB820c (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_modeset_lock+0xf8/0x154 lr : drm_atomic_get_private_obj_state+0x84/0x170 sp : ffff80000cfab6a0 x29: ffff80000cfab6a0 x28: 0000000000000000 x27: ffff000083bc4d00 x26: 0000000000000038 x25: 0000000000000000 x24: ffff80000957ca58 x23: 0000000000000000 x22: ffff000081ace080 x21: 0000000000000001 x20: ffff000081acec18 x19: ffff80000cfabb80 x18: 0000000000000038 x17: 0000000000000000 x16: 0000000000000000 x15: fffffffffffea0d0 x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 5f534b434f4c5f47 x11: ffff80000a386aa8 x10: 0000000000000029 x9 : ffff80000cfab610 x8 : 0000000000000029 x7 : 0000000000000014 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000081ad904 x3 : 0000000000000029 x2 : ffff0000801db4c0 x1 : ffff80000cfabb80 x0 : ffff000081aceb58 Call trace: drm_modeset_lock+0xf8/0x154 drm_atomic_get_private_obj_state+0x84/0x170 mdp5_get_global_state+0x54/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x2ec/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 ... ---[ end trace 0000000000000000 ]--- drm_modeset_lock attempting to lock a contended lock without backoff: drm_modeset_lock+0x148/0x154 mdp5_get_global_state+0x30/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x290/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 drm_atomic_check_only+0x4b0/0x8f4 drm_atomic_commit+0x68/0xe0 Patchwork: https://patchwork.freedesktop.org/patch/492701/

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.19% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu107 products
  • linux< 5.4.0-132.148 | < 5.15.0-53.59
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1089.97 | < 5.15.0-1023.27
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 776f5c58bfe16cf322d71eeed3c5dda1eeac7e6b, < 247f2934324f9a18d18df24ea4bfcc7d4631d0ef | ≥ b2aa2c4efe93e2580d6a8774b04fe2b99756a322, < 2e34d6c8180a398de6448a93df25068bf3062042 | ≥ 49dc28b4b2e28ef7564e355c91487996c1cbebd7, < bf386c955f35a0a01bef482b6035d40ff2f6cc75 | ≥ 04bef5f1ba8ea6d7c1c8f5f65e0395c62db59cb8, < f4e3a8c7e890049e7ba2b49ad0315dae841dfa55 | ≥ 33dc5aac46e0fad8f5eb193e5906ed0eb6b66ceb, < 2fdf5a54ef9376ff69149a48c5616f1141008c9f | ≥ d59be579fa932c46b908f37509f319cbd4ca9a68, < 0b07f28c23ff50a7fa5dbc3f6b3b6bd53ac9fc70 | ≥ d59be579fa932c46b908f37509f319cbd4ca9a68, < 92ef86ab513593c6329d04146e61f9a670e72fc5 | 19964dfb39bda4d7716a71009488f0668ecbcf52 | ≥ 4.19.247, < 4.19.256 | ≥ 5.4.198, < 5.4.211 | ≥ 5.10.121, < 5.10.137 | ≥ 5.15.46, < 5.15.61 | ≥ 5.18.3, < 5.18.18 | ≥ 5.17.14, < 5.18 | 5.19
  • linux_kernel≥ 4.19.247, < 4.19.256 | ≥ 5.4.198, < 5.4.211 | ≥ 5.10.121, < 5.10.137 | ≥ 5.15.46, < 5.15.61 | ≥ 5.17.14, < 5.18 | ≥ 5.18.3, < 5.18.18 | ≥ 5.19, < 5.19.2
Debian1 product
  • linux< 6.0.2-1

3 vendors · 110 products

References

10 links