PT-2026-36345 · Linux · Linux Kernel
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A use-after-free condition exists in the f2fs component of the Linux kernel. The issue occurs in the
f2fs write end io() function when sbi->nr pages[F2FS WB CP DATA] is decremented to zero. This can lead to a NULL pointer dereference in the f2fs in warm node list() function because f2fs put super() may set sbi->node inode to NULL concurrently. This race condition results in a system panic when the kernel attempts to check if a folio belongs to the node inode.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel