What’s Vulnerable › Vulnerabilities

CVE-2026-74432: rxrpc: Fix leak of released call in recvmsg(MSG_PEEK)

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix leak of released call in recvmsg(MSG_PEEK) Fix rxrpc_recvmsg() to also drop the ref it holds on an already-released call if MSG_PEEK is in force (the function holds a ref on the call irrespective of whether MSG_PEEK is specified or not).

Affected products

• Linux: from 6.6.100 before 6.6.145; from 6.12.40 before 6.12.97; from 5.10.266 before 5.11; from 6.1.191 before 6.2; from 6.15.8 before 6.16 — fixed in 6.6.145, 6.12.97, 5.11, 6.2, 6.16

How to fix

Upgrade to a fixed version: Linux 6.6.145, 6.12.97, 5.11, 6.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/04c7103dc0923cc6ac95b97aa66bab70da7ace84
• https://git.kernel.org/stable/c/2b69b61057eb0b3db9ad754ef0f1436b7af3a9f5
• https://git.kernel.org/stable/c/4bdb9e471f5b1ac9cbe4add5de7ff085a0ec303c
• https://git.kernel.org/stable/c/86eff3140c9d4b52bba13d1cba266da933403e51
• https://git.kernel.org/stable/c/e473cd3046a1aaec1e39af5df2042ce7c04d5e74

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