Skip to main content
cve.nowby Sazabi
← All vulnerabilities
CVE-2026-31447

ext4: reject mount if bigalloc with s_first_data_block != 0

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.253, 5.15.203, 6.1.168, 6.6.131, 6.12.80, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: reject mount if bigalloc with s_first_data_block != 0 bigalloc with s_first_data_block != 0 is not supported, reject mounting it.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 281b59959707dfae03ce038cdf231bf4904e170c · fixed in 5ad6d994255e27a3254079dfb50ca861fc31f2d0; From 281b59959707dfae03ce038cdf231bf4904e170c · fixed in 3a926957cc95899ef88529710836edadc03c71a1; From 281b59959707dfae03ce038cdf231bf4904e170c · fixed in 7b58c110b4e1f028eb38eec9ed3555e9be81c8b0; From 281b59959707dfae03ce038cdf231bf4904e170c · fixed in b77de3fceafbb39f30e4ff5dc986f863d5456417; From 281b59959707dfae03ce038cdf231bf4904e170c · fixed in d787d3ae96648dc14a3b7ca8fde817177e82c1c7; From 281b59959707dfae03ce038cdf231bf4904e170c · fixed in ad1f6d608f33f59d21a3d025615d6786a6443998; From 281b59959707dfae03ce038cdf231bf4904e170c · fixed in 7d5b04290156c3fc316eecc86a4f9d201ab7d44a; From 281b59959707dfae03ce038cdf231bf4904e170c · fixed in 3822743dc20386d9897e999dbb990befa3a5b3f8

  • Linux Linux

    3.2

  • KernelLinux

    From 3.2.0 · fixed in 5.10.253; From 5.11.0 · fixed in 5.15.203; From 5.16.0 · fixed in 6.1.168; From 6.2.0 · fixed in 6.6.131; From 6.7.0 · fixed in 6.12.80; From 6.13.0 · fixed in 6.18.21; From 6.19.0 · fixed in 6.19.11

References 8

git.kernel.org