7.5

CVE-2022-49768: 9p: trans_fd/p9_conn_cancel: drop client lock earlier

Modified
AliasesUBUNTU-CVE-2022-49768DEBIAN-CVE-2022-49768
Published 01-05-2025Last modified 05-08-2026

Vulnerability summary

CVE-2022-49768 is a high (CVSS 7.5) Improper Locking vulnerability in linux. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 34.1% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.40%
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 1 · Related 1
SUSE-SU-2025:02846-1

Timeline

  1. 01-05-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: 9p: trans_fd/p9_conn_cancel: drop client lock earlier syzbot reported a double-lock here and we no longer need this lock after requests have been moved off to local list: just drop the lock earlier.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.40%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.39% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu114 products
  • linuxAll versions (No fix recorded) | < 4.15.0-206.217 | < 5.4.0-144.161 | < 5.15.0-67.74
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1151.164 | < 5.4.0-1097.105 | < 5.15.0-1031.35
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ eb1ca07f4343b4e58b97e792a85d5ba1ba103f5d, < 82825dbf393f7c7979d462f9609a15bde8092b3f | ≥ 4cd195263e420311d31451cc053fde8037f326f1, < e3031280fe4eaf61a09e60823331f81f321be8e1 | ≥ 9f476d7c540cb57556d3cc7e78704e6cd5100f5f, < fec1406f5e7ab20b71f6d231792b0040e3300aaf | ≥ 9f476d7c540cb57556d3cc7e78704e6cd5100f5f, < 96760723aae1b45f733f702abb4333137143909f | ≥ 9f476d7c540cb57556d3cc7e78704e6cd5100f5f, < f14858bc77c567e089965962877ee726ffad0556 | ≥ 9f476d7c540cb57556d3cc7e78704e6cd5100f5f, < a4f1a01b2e81378fce9ca528d4d8a049e4b58fcd | ≥ 9f476d7c540cb57556d3cc7e78704e6cd5100f5f, < 612c977f5d481f551d03d83d0aef588845c1300c | ≥ 9f476d7c540cb57556d3cc7e78704e6cd5100f5f, < 52f1c45dde9136f964d63a77d19826c8a74e2c7f | 91ca7c5644c370dc5132b1db1aea81416a4b2181 | ≥ 4.9.127, < 4.9.334 | ≥ 4.14.70, < 4.14.300 | ≥ 4.18.8, < 4.19 | 4.19
  • linux_kernel≥ 4.9.127, < 4.9.334 | ≥ 4.14.70, < 4.14.300 | ≥ 4.18.8, < 4.19.267 | ≥ 4.20, < 5.4.225 | ≥ 5.5, < 5.10.156 | ≥ 5.11, < 5.15.80 | ≥ 5.16, < 6.0.10
Debian1 product
  • linux< 6.0.10-1

3 vendors · 117 products

References

12 links
Show all 12 references