CVE-2026-74288

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().

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-15 06:22

Updated : 2026-08-17 06:19

NVD link : CVE-2026-74288

Mitre link : CVE-2026-74288

CVE.ORG link : CVE-2026-74288

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-74288", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e", "lessThan": "0f929b59f4cd0e05bb1ecefe12b77e85911d4be2", "versionType": "git"}, {"status": "affected", "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e", "lessThan": "4b7ae30c81c2ee10a644749a3704a5c797ccc308", "versionType": "git"}, {"status": "affected", "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e", "lessThan": "2dfdc210d240bd48bb2ea746430b02b5571b6db9", "versionType": "git"}, {"status": "affected", "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e", "lessThan": "a7ef30753353ba6a95d693b1863a0214222a199a", "versionType": "git"}, {"status": "affected", "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e", "lessThan": "1fbc6c6efe78f4454a51afa0587efb6826f60f00", "versionType": "git"}, {"status": "affected", "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e", "lessThan": "bb4a5b3c91af3c8d705bb2e9f6f8069a70db26fc", "versionType": "git"}, {"status": "affected", "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e", "lessThan": "3af0bc1bd9039e2e50abf3e2d7fee411f38bce4e", "versionType": "git"}, {"status": "affected", "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e", "lessThan": "2821e85c058f81c9948a2fb1a634f7b47457d51c", "versionType": "git"}], "programFiles": ["include/net/fib_rules.h", "net/core/fib_rules.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.12"}, {"status": "unaffected", "version": "0", "lessThan": "4.12", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.261", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.212", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.178", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.145", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.97", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.40", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.5", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["include/net/fib_rules.h", "net/core/fib_rules.c"], "defaultStatus": "affected"}]}], "published": "2026-08-15T06:22:28.343", "references": [{"url": "https://git.kernel.org/stable/c/0f929b59f4cd0e05bb1ecefe12b77e85911d4be2", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1fbc6c6efe78f4454a51afa0587efb6826f60f00", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2821e85c058f81c9948a2fb1a634f7b47457d51c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2dfdc210d240bd48bb2ea746430b02b5571b6db9", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3af0bc1bd9039e2e50abf3e2d7fee411f38bce4e", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4b7ae30c81c2ee10a644749a3704a5c797ccc308", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a7ef30753353ba6a95d693b1863a0214222a199a", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bb4a5b3c91af3c8d705bb2e9f6f8069a70db26fc", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fib_rules: Don't dump dying fib_rule in fib_rules_dump().\n\nrocker_router_fib_event() calls fib_rule_get() during RCU dump.\n\nIf the fib_rule is dying, refcount_inc() will complain about it.\n\nLet's call refcount_inc_not_zero() in fib_rules_dump()."}], "lastModified": "2026-08-17T06:19:22.723", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}