5.5

CVE-2026-31514: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-31514DEBIAN-CVE-2026-31514
Published 22-04-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-31514 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.9% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23221-1SUSE-SU-2026:23231-1SUSE-SU-2026:23237-1

Timeline

  1. 22-04-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: erofs: set fileio bio failed in short read case For file-backed mount, IO requests are handled by vfs_iocb_iter_read(). However, it can be interrupted by SIGKILL, returning the number of bytes actually copied. Unused folios in bio are unexpectedly marked as uptodate. vfs_read filemap_read filemap_get_pages filemap_readahead erofs_fileio_readahead erofs_fileio_rq_submit vfs_iocb_iter_read filemap_read filemap_get_pages <= detect signal erofs_fileio_ki_complete <= set all folios uptodate This patch addresses this by setting short read bio with an error directly.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.04 pp

From 0.12% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu91 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ 8d582d65d20bb4796db01b19e86909ad68cb337b, < d1ba7d6b3cd1757b108d7b6856c92ae661d6c323 | ≥ e49abde0ffc382a967b24f326d1614ac3bb06a94, < 5cf3972c8221abdb1b464a14ccf8103d840b9085 | ≥ fe4039034dcdf584afbf763787909e28e92a4927, < 5a5f23ef5431639db1ac3a0b274aef3a84cc413c | ≥ bc804a8d7e865ef47fb7edcaf5e77d18bf444ebc, < eade54040384f54b7fb330e4b0975c5734850b3c | ≥ 6.12.75, < 6.12.80 | ≥ 6.18.14, < 6.18.21 | ≥ 6.19.4, < 6.19.11
  • linux_kernel≥ 6.12.75, < 6.12.80 | ≥ 6.18.14, < 6.18.21 | ≥ 6.19.4, < 6.19.11
Debian1 product
  • linux< 6.19.11-1

3 vendors · 94 products

References

8 links