CVE-2026-31447
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 281b59959707dfae03ce038cdf231bf4904e170c < 5ad6d994255e27a3254079dfb50ca861fc31f2d0 | affected |
| Linux | Linux | 281b59959707dfae03ce038cdf231bf4904e170c < 3a926957cc95899ef88529710836edadc03c71a1 | affected |
| Linux | Linux | 281b59959707dfae03ce038cdf231bf4904e170c < 7b58c110b4e1f028eb38eec9ed3555e9be81c8b0 | affected |
| Linux | Linux | 281b59959707dfae03ce038cdf231bf4904e170c < b77de3fceafbb39f30e4ff5dc986f863d5456417 | affected |
| Linux | Linux | 281b59959707dfae03ce038cdf231bf4904e170c < d787d3ae96648dc14a3b7ca8fde817177e82c1c7 | affected |
| Linux | Linux | 281b59959707dfae03ce038cdf231bf4904e170c < ad1f6d608f33f59d21a3d025615d6786a6443998 | affected |
| Linux | Linux | 281b59959707dfae03ce038cdf231bf4904e170c < 7d5b04290156c3fc316eecc86a4f9d201ab7d44a | affected |
| Linux | Linux | 281b59959707dfae03ce038cdf231bf4904e170c < 3822743dc20386d9897e999dbb990befa3a5b3f8 | affected |
| Linux | Linux | 3.2 | affected |
| Linux | Linux | 0 < 3.2 | unaffected |
| Linux | Linux | 5.10.253 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.203 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.168 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.131 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.80 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.21 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.11 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/5ad6d994255e27a3254079dfb50ca861fc31f2d0
- https://git.kernel.org/stable/c/3a926957cc95899ef88529710836edadc03c71a1
- https://git.kernel.org/stable/c/7b58c110b4e1f028eb38eec9ed3555e9be81c8b0
- https://git.kernel.org/stable/c/b77de3fceafbb39f30e4ff5dc986f863d5456417
- https://git.kernel.org/stable/c/d787d3ae96648dc14a3b7ca8fde817177e82c1c7
- https://git.kernel.org/stable/c/ad1f6d608f33f59d21a3d025615d6786a6443998
- https://git.kernel.org/stable/c/7d5b04290156c3fc316eecc86a4f9d201ab7d44a
- https://git.kernel.org/stable/c/3822743dc20386d9897e999dbb990befa3a5b3f8
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