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Description

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.

PUBLISHED Reserved 2026-03-09 | Published 2026-04-22 | Updated 2026-04-27 | Assigner Linux




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Product status

Default status
unaffected

281b59959707dfae03ce038cdf231bf4904e170c (git) before 5ad6d994255e27a3254079dfb50ca861fc31f2d0
affected

281b59959707dfae03ce038cdf231bf4904e170c (git) before 3a926957cc95899ef88529710836edadc03c71a1
affected

281b59959707dfae03ce038cdf231bf4904e170c (git) before 7b58c110b4e1f028eb38eec9ed3555e9be81c8b0
affected

281b59959707dfae03ce038cdf231bf4904e170c (git) before b77de3fceafbb39f30e4ff5dc986f863d5456417
affected

281b59959707dfae03ce038cdf231bf4904e170c (git) before d787d3ae96648dc14a3b7ca8fde817177e82c1c7
affected

281b59959707dfae03ce038cdf231bf4904e170c (git) before ad1f6d608f33f59d21a3d025615d6786a6443998
affected

281b59959707dfae03ce038cdf231bf4904e170c (git) before 7d5b04290156c3fc316eecc86a4f9d201ab7d44a
affected

281b59959707dfae03ce038cdf231bf4904e170c (git) before 3822743dc20386d9897e999dbb990befa3a5b3f8
affected

Default status
affected

3.2
affected

Any version before 3.2
unaffected

5.10.253 (semver)
unaffected

5.15.203 (semver)
unaffected

6.1.168 (semver)
unaffected

6.6.131 (semver)
unaffected

6.12.80 (semver)
unaffected

6.18.21 (semver)
unaffected

6.19.11 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/5ad6d994255e27a3254079dfb50ca861fc31f2d0

git.kernel.org/...c/3a926957cc95899ef88529710836edadc03c71a1

git.kernel.org/...c/7b58c110b4e1f028eb38eec9ed3555e9be81c8b0

git.kernel.org/...c/b77de3fceafbb39f30e4ff5dc986f863d5456417

git.kernel.org/...c/d787d3ae96648dc14a3b7ca8fde817177e82c1c7

git.kernel.org/...c/ad1f6d608f33f59d21a3d025615d6786a6443998

git.kernel.org/...c/7d5b04290156c3fc316eecc86a4f9d201ab7d44a

git.kernel.org/...c/3822743dc20386d9897e999dbb990befa3a5b3f8

cve.org (CVE-2026-31447)

nvd.nist.gov (CVE-2026-31447)

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