4.7

CVE-2022-49344: af_unix: Fix a data-race in unix_dgram_peer_wake_me().

Modified
AliasesUBUNTU-CVE-2022-49344DEBIAN-CVE-2022-49344
Published 26-02-2025Last modified 23-05-2026

Vulnerability summary

CVE-2022-49344 is a medium (CVSS 4.7) vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.19%
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 2 · Related 1
RHSA-2023:6583SUSE-SU-2025:1293-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix a data-race in unix_dgram_peer_wake_me(). unix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`'s lock held and check if its receive queue is full. Here we need to use unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise KCSAN will report a data-race.

CVSS metrics

5 scores · 4 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

No change 0.00 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.

Ubuntu111 products
  • linuxAll versions (No fix recorded) | < 4.15.0-192.203 | < 5.4.0-126.142 | < 5.15.0-48.54
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1140.151 | < 5.4.0-1085.92 | < 5.15.0-1020.24
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 7d267278a9ece963d77eefec61630223fce08c6c, < 95f0ba806277733bf6024e23e27e1be773701cca | ≥ 7d267278a9ece963d77eefec61630223fce08c6c, < 556720013c36c193d9cbfb06e7b33e51f0c39fbf | ≥ 7d267278a9ece963d77eefec61630223fce08c6c, < c61848500a3fd6867dfa4834b8c7f97133eceb9f | ≥ 7d267278a9ece963d77eefec61630223fce08c6c, < c926ae58f24f7bd55aa2ea4add9f952032507913 | ≥ 7d267278a9ece963d77eefec61630223fce08c6c, < 71e8bfc7f838cabc60cba24e09ca84c4f8321ab2 | ≥ 7d267278a9ece963d77eefec61630223fce08c6c, < 8801eb3ccd2e4e3b1a01449383e3321ae6dbd9d6 | ≥ 7d267278a9ece963d77eefec61630223fce08c6c, < 662a80946ce13633ae90a55379f1346c10f0c432 | 60bc010667ef06e0fb08d5ec599c0977adc2ac72 | a3b0f6e8a21ef02f69a15abac440572d8cde8c2a | ec54d5ae9d298abf01c273233de9f2bc25d80475 | da8db0830a2ce63f628150307a01a315f5081202 | 9964b4c4ee925b2910723e509abd7241cff1ef84 | 9d054f57adc981a5f503d5eb9b259aa450b90dc5 | 72032798034d921ed565e3bf8dfdc3098f6473e2 | 5c77e26862ce604edea05b3442ed765e9756fe0f | bad967fdd8ecbdd171f5f243657be033d2d081a7 | 58a6a46a036ce81a2a8ecaa6fc1537c894349e3f | ≥ 2.6.32.70, < 2.6.33 | ≥ 3.2.75, < 3.3 | ≥ 3.4.111, < 3.5 | ≥ 3.10.95, < 3.11 | ≥ 3.12.52, < 3.13 | ≥ 3.14.59, < 3.15 | ≥ 3.18.26, < 3.19 | ≥ 4.1.15, < 4.2 | ≥ 4.2.8, < 4.3 | ≥ 4.3.3, < 4.4 | 4.4
  • linux_kernel≥ 3.2.75, < 3.3 | ≥ 3.4.111, < 3.5 | ≥ 3.10.95, < 3.11 | ≥ 3.12.52, < 3.13 | ≥ 3.14.59, < 3.15 | ≥ 3.18.26, < 3.19 | ≥ 4.1.15, < 4.2 | ≥ 4.2.8, < 4.3 | ≥ 4.3.3, < 4.19.247 | ≥ 4.20, < 5.4.198 | ≥ 5.5, < 5.10.122 | ≥ 5.11, < 5.15.47 | ≥ 5.16, < 5.17.15 | ≥ 5.18, < 5.18.4 | 5.19:rc1
Debian1 product
  • linux< 5.18.5-1

3 vendors · 114 products

References

11 links
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