CVE-2026-31447
HIGHext4: reject mount if bigalloc with s_first_data_block != 0
Title source: cnaDescription
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.
References (8)
Core 8
Core References
Scores
CVSS v3
7.8
EPSS
0.0001
EPSS Percentile
3.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
Status
published
Products (28)
Linux/Linux
< 3.2
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 3822743dc20386d9897e999dbb990befa3a5b3f8
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 3a926957cc95899ef88529710836edadc03c71a1
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 5ad6d994255e27a3254079dfb50ca861fc31f2d0
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 7b58c110b4e1f028eb38eec9ed3555e9be81c8b0
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 7d5b04290156c3fc316eecc86a4f9d201ab7d44a
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - ad1f6d608f33f59d21a3d025615d6786a6443998
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - b77de3fceafbb39f30e4ff5dc986f863d5456417
Linux/Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - d787d3ae96648dc14a3b7ca8fde817177e82c1c7
Linux/Linux
281b59959707dfae03ce038cdf231bf4904e170c - 3822743dc20386d9897e999dbb990befa3a5b3f8
... and 18 more
Published
Apr 22, 2026
Tracked Since
Apr 22, 2026