5.5

CVE-2022-49097: NFS: Avoid writeback threads getting stuck in mempool_alloc()

Analyzed
AliasesUBUNTU-CVE-2022-49097DEBIAN-CVE-2022-49097
Published 26-02-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49097 is a medium (CVSS 5.5) Loop with Unreachable Exit Condition vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.8% 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
0.25%
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 4
RHSA-2023:2458SUSE-SU-2025:1027-1SUSE-SU-2025:1176-1SUSE-SU-2025:1183-1SUSE-SU-2025:1241-1

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: NFS: Avoid writeback threads getting stuck in mempool_alloc() In a low memory situation, allow the NFS writeback code to fail without getting stuck in infinite loops in mempool_alloc().

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% 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.

Ubuntu108 products
  • linuxAll versions (No fix recorded) | < 5.15.0-37.39
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1011.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 2b17d725f9be59a1bfa0583af690c463fca1f385, < c74e2f6ecc51bd08bb5b0335477dba954a50592e | ≥ 2b17d725f9be59a1bfa0583af690c463fca1f385, < ea029e4ce760f786919d06ef52efa2e50ea92a5f | ≥ 2b17d725f9be59a1bfa0583af690c463fca1f385, < 1b3fa9a3c420c31e77b406ddc28f3a627100516c | ≥ 2b17d725f9be59a1bfa0583af690c463fca1f385, < a6caeddd68977a1aaaf62fbd1955b41dd5c3c5d3 | ≥ 2b17d725f9be59a1bfa0583af690c463fca1f385, < 0bae835b63c53f86cdc524f5962e39409585b22c | 5.3
  • linux_kernel< 5.10.111 | ≥ 5.11, < 5.15.34 | ≥ 5.16, < 5.16.20 | ≥ 5.17, < 5.17.3
Debian1 product
  • linux< 5.17.3-1

3 vendors · 111 products

References

9 links