CVE-2026-31447

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-31447
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.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/3822743dc20386d9897e999dbb990befa3a5b3f8 Patch
https://git.kernel.org/stable/c/3a926957cc95899ef88529710836edadc03c71a1 Patch
https://git.kernel.org/stable/c/5ad6d994255e27a3254079dfb50ca861fc31f2d0 Patch
https://git.kernel.org/stable/c/7b58c110b4e1f028eb38eec9ed3555e9be81c8b0 Patch
https://git.kernel.org/stable/c/7d5b04290156c3fc316eecc86a4f9d201ab7d44a Patch
https://git.kernel.org/stable/c/ad1f6d608f33f59d21a3d025615d6786a6443998 Patch
https://git.kernel.org/stable/c/b77de3fceafbb39f30e4ff5dc986f863d5456417 Patch
https://git.kernel.org/stable/c/d787d3ae96648dc14a3b7ca8fde817177e82c1c7 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
History

07 May 2026, 19:18

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/3822743dc20386d9897e999dbb990befa3a5b3f8 - () https://git.kernel.org/stable/c/3822743dc20386d9897e999dbb990befa3a5b3f8 - Patch
References () https://git.kernel.org/stable/c/3a926957cc95899ef88529710836edadc03c71a1 - () https://git.kernel.org/stable/c/3a926957cc95899ef88529710836edadc03c71a1 - Patch
References () https://git.kernel.org/stable/c/5ad6d994255e27a3254079dfb50ca861fc31f2d0 - () https://git.kernel.org/stable/c/5ad6d994255e27a3254079dfb50ca861fc31f2d0 - Patch
References () https://git.kernel.org/stable/c/7b58c110b4e1f028eb38eec9ed3555e9be81c8b0 - () https://git.kernel.org/stable/c/7b58c110b4e1f028eb38eec9ed3555e9be81c8b0 - Patch
References () https://git.kernel.org/stable/c/7d5b04290156c3fc316eecc86a4f9d201ab7d44a - () https://git.kernel.org/stable/c/7d5b04290156c3fc316eecc86a4f9d201ab7d44a - Patch
References () https://git.kernel.org/stable/c/ad1f6d608f33f59d21a3d025615d6786a6443998 - () https://git.kernel.org/stable/c/ad1f6d608f33f59d21a3d025615d6786a6443998 - Patch
References () https://git.kernel.org/stable/c/b77de3fceafbb39f30e4ff5dc986f863d5456417 - () https://git.kernel.org/stable/c/b77de3fceafbb39f30e4ff5dc986f863d5456417 - Patch
References () https://git.kernel.org/stable/c/d787d3ae96648dc14a3b7ca8fde817177e82c1c7 - () https://git.kernel.org/stable/c/d787d3ae96648dc14a3b7ca8fde817177e82c1c7 - Patch
CWE NVD-CWE-noinfo
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*

27 Apr 2026, 14:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8

22 Apr 2026, 14:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-22 14:16

Updated : 2026-05-07 19:18

NVD link : CVE-2026-31447

Mitre link : CVE-2026-31447

CVE.ORG link : CVE-2026-31447

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo