PT-2025-46643 · Linux+4 · Linux Kernel+4
Published
2025-11-12
·
Updated
2026-06-05
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CVE-2025-40168
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a use-after-free issue within the
smc clc prfx match() function. This function is called from smc listen work() without proper read-copy-update (RCU) or Real-Time Network Layer (RTNL) protection. The use of sk dst get(sk)->dev could lead to a use-after-free condition. The issue is addressed by utilizing sk dst get() and dst dev rcu() instead. The return value of smc clc prfx match() is not utilized by the calling 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
Linuxmint
Linux Kernel
Rocky Linux
Ubuntu