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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

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
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
https://cert-portal.siemens.com/productcert/html/ssa-082556.html

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

No history.

Information

Published : 2026-04-22 14:16

Updated : 2026-07-14 13:18

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

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