5.5

CVE-2022-49538: ALSA: jack: Access input_dev under mutex

Modified
AliasesUBUNTU-CVE-2022-49538DEBIAN-CVE-2022-49538
Published 26-02-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49538 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 19.6% 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 (CVE.org)
EPSS score
0.27%
0%100%
Low · 0.00 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 5 · Related 3
RHSA-2022:7683RHSA-2022:8267SUSE-SU-2025:1176-1SUSE-SU-2025:1241-1SUSE-SU-2025:1293-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: jack: Access input_dev under mutex It is possible when using ASoC that input_dev is unregistered while calling snd_jack_report, which causes NULL pointer dereference. In order to prevent this serialize access to input_dev using mutex lock.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.27% 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.

Ubuntu112 products
  • linuxAll versions (No fix recorded) | < 4.15.0-192.203 | < 5.4.0-126.142 | < 5.15.0-47.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1140.151 | < 5.4.0-1085.92 | < 5.15.0-1019.23
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 32b8544296b944b204b33f9837701d4d0b9adefe, < 74bab3bcf422593c582e47130aa8eb41ebb2dc09 | ≥ 32b8544296b944b204b33f9837701d4d0b9adefe, < 8487a88136d54a1a4d3f26f1399685db648ab879 | ≥ 32b8544296b944b204b33f9837701d4d0b9adefe, < c093b62c40027c21d649c5534ad7aa3605a99b00 | ≥ 32b8544296b944b204b33f9837701d4d0b9adefe, < f68bed124c7699e23ffb4ce4fcc84671e9193cde | ≥ 32b8544296b944b204b33f9837701d4d0b9adefe, < e2b8681769f6e205382f026b907d28aa5ec9d59a | ≥ 32b8544296b944b204b33f9837701d4d0b9adefe, < 5cc6f623f4818c7d7e9e966a45ebf324901ca9c5 | ≥ 32b8544296b944b204b33f9837701d4d0b9adefe, < 9e6a73b0c0f2014eb89249fb1640c5a3d58221c4 | ≥ 32b8544296b944b204b33f9837701d4d0b9adefe, < 582aea6084cc59fec881204f026816d1219f2348 | ≥ 32b8544296b944b204b33f9837701d4d0b9adefe, < 1b6a6fc5280e97559287b61eade2d4b363e836f2 | 3.13
  • linux_kernel< 4.9.318 | ≥ 4.10, < 4.14.283 | ≥ 4.15, < 4.19.247 | ≥ 4.20, < 5.4.198 | ≥ 5.5, < 5.10.121 | ≥ 5.11, < 5.15.46 | ≥ 5.16, < 5.17.14 | ≥ 5.18, < 5.18.3
Debian1 product
  • linux< 5.18.5-1

3 vendors · 115 products

References

13 links
Show all 13 references