CVE-2026-31447

EUVD-2026-24782
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
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Debian Releases
Debian Product
Codename
linux
bookworm
vulnerable
bookworm (security)
vulnerable
bullseye
vulnerable
bullseye (security)
vulnerable
forky
6.19.11-1
fixed
sid
6.19.13-1
fixed
trixie
vulnerable
trixie (security)
vulnerable
References
https://git.kernel.org/stable/c/3822743dc20386d9897e999dbb990befa3a5b3f8
https://git.kernel.org/stable/c/3a926957cc95899ef88529710836edadc03c71a1
https://git.kernel.org/stable/c/5ad6d994255e27a3254079dfb50ca861fc31f2d0
https://git.kernel.org/stable/c/7b58c110b4e1f028eb38eec9ed3555e9be81c8b0
https://git.kernel.org/stable/c/7d5b04290156c3fc316eecc86a4f9d201ab7d44a
https://git.kernel.org/stable/c/ad1f6d608f33f59d21a3d025615d6786a6443998
https://git.kernel.org/stable/c/b77de3fceafbb39f30e4ff5dc986f863d5456417
https://git.kernel.org/stable/c/d787d3ae96648dc14a3b7ca8fde817177e82c1c7