PT-2025-51577 · Ext4+2 · Ext4+2
Published
2025-12-16
·
Updated
2026-04-20
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CVE-2025-40361
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel's ext4 file system implementation related to memory allocation within the extended attribute handling routines. Specifically, the
ext4 xattr inode cache find function was using GFP KERNEL for memory allocation, while its parent function, ext4 xattr inode lookup create, used GFP NOFS. This discrepancy could lead to a deadlock situation. The issue was resolved by changing the memory allocation flag in ext4 xattr inode cache find to GFP NOFS, aligning it with the parent function.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Debian
Linux Kernel
Ext4