PT-2026-37507 · Linux+1 · Linux Kernel+1
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A reference count leak occurs in
struct xfrm state within the Linux kernel. This issue arises because the xfrm dev unregister() function was implemented as a no-op, even though xfrm dev state add() (called via xfrm state construct()) acquires a reference to struct net device. Consequently, when a NETDEV UNREGISTER event occurs, the reference to the network device is not properly released, leading to a memory leak. The problem is exacerbated when the NETIF F HW ESP bit is cleared after the reference has been acquired, as the system fails to unconditionally flush the state and policy.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
Linuxmint
Linux Kernel