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CVE-2026-74288

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

HIGH
7.8
CVSS Score
Published: August 15, 2026 at 05:57 AM UTC
Updated: October 16, 2026 at 07:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
4.125d7bfd141924a5ece21eb612ad3c56612f041c1e
Vendor states this is fixed in 0f929b59f4cd0e05bb1ecefe12b77e85911d4be2 (fixed)
Vendor states this is fixed in 1fbc6c6efe78f4454a51afa0587efb6826f60f00 (fixed)
Vendor states this is fixed in 2821e85c058f81c9948a2fb1a634f7b47457d51c (fixed)
Vendor states this is fixed in 2dfdc210d240bd48bb2ea746430b02b5571b6db9 (fixed)
Vendor states this is fixed in 3af0bc1bd9039e2e50abf3e2d7fee411f38bce4e (fixed)
Vendor states this is fixed in 4b7ae30c81c2ee10a644749a3704a5c797ccc308 (fixed)
Vendor states this is fixed in a7ef30753353ba6a95d693b1863a0214222a199a (fixed)
Vendor states this is fixed in bb4a5b3c91af3c8d705bb2e9f6f8069a70db26fc (fixed)
Vendor states this is fixed in 4.12 (unaffected)
Vendor states this is fixed in 5.10.261 (unaffected)
Vendor states this is fixed in 5.15.212 (unaffected)
Vendor states this is fixed in 6.1.178 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/0f929b59f4cd0e05bb1ecefe12b77e85911d4be2
Source: cverecord
https://git.kernel.org/stable/c/4b7ae30c81c2ee10a644749a3704a5c797ccc308
Source: cverecord
https://git.kernel.org/stable/c/2dfdc210d240bd48bb2ea746430b02b5571b6db9
Source: cverecord
https://git.kernel.org/stable/c/a7ef30753353ba6a95d693b1863a0214222a199a
Source: cverecord
https://git.kernel.org/stable/c/1fbc6c6efe78f4454a51afa0587efb6826f60f00
Source: cverecord
https://git.kernel.org/stable/c/bb4a5b3c91af3c8d705bb2e9f6f8069a70db26fc
Source: cverecord
https://git.kernel.org/stable/c/3af0bc1bd9039e2e50abf3e2d7fee411f38bce4e
Source: cverecord
https://git.kernel.org/stable/c/2821e85c058f81c9948a2fb1a634f7b47457d51c

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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