PT-2025-49379 · Linux+3 · Linux Kernel+3
Published
2025-12-06
·
Updated
2026-05-07
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CVE-2025-40278
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A kernel information leak issue was addressed in the Linux kernel related to the
tc ife structure within the networking subsystem. The issue stemmed from partially initialized variables in the tcf ife dump() function, leading to uninitialized padding bytes being copied into netlink messages and potentially leaked to userspace. The fix involves initializing the tc ife structure with memset before assigning its fields, ensuring all members and padding are cleared. This prevents potential information disclosure from kernel memory. The fix was validated by syzbot.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
Linuxmint
Linux Kernel
Ubuntu