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CVE-2026-74288

net: fib_rules: Don't dump dying fib_rule in fib_rules_dump().

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

In the Linux kernel, the following vulnerability has been resolved: net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). rocker_router_fib_event() calls fib_rule_get() during RCU dump. If the fib_rule is dying, refcount_inc() will complain about it. Let's call refcount_inc_not_zero() in fib_rules_dump().

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 5d7bfd141924a5ece21eb612ad3c56612f041c1e · fixed in 0f929b59f4cd0e05bb1ecefe12b77e85911d4be2; From 5d7bfd141924a5ece21eb612ad3c56612f041c1e · fixed in 4b7ae30c81c2ee10a644749a3704a5c797ccc308; From 5d7bfd141924a5ece21eb612ad3c56612f041c1e · fixed in 2dfdc210d240bd48bb2ea746430b02b5571b6db9; From 5d7bfd141924a5ece21eb612ad3c56612f041c1e · fixed in a7ef30753353ba6a95d693b1863a0214222a199a; From 5d7bfd141924a5ece21eb612ad3c56612f041c1e · fixed in 1fbc6c6efe78f4454a51afa0587efb6826f60f00; From 5d7bfd141924a5ece21eb612ad3c56612f041c1e · fixed in bb4a5b3c91af3c8d705bb2e9f6f8069a70db26fc; From 5d7bfd141924a5ece21eb612ad3c56612f041c1e · fixed in 3af0bc1bd9039e2e50abf3e2d7fee411f38bce4e; From 5d7bfd141924a5ece21eb612ad3c56612f041c1e · fixed in 2821e85c058f81c9948a2fb1a634f7b47457d51c

  • Linux Linux

    4.12

  • KernelLinux

    From 4.12.0 · fixed in 5.10.261; From 5.11.0 · fixed in 5.15.212; From 5.16.0 · fixed in 6.1.178; From 6.2.0 · fixed in 6.6.145; From 6.7.0 · fixed in 6.12.97; From 6.13.0 · fixed in 6.18.40; From 6.19.0 · fixed in 7.1.5

References 8

git.kernel.org