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Vulnerabilities

Vulnerability · CVE-2025-40280

In the Linux kernel, the following vulnerability has been resolved: tipc: Fix use-after-free in tipc_mon_reinit_self().

Published Dec 6, 2025 · catalog updated Aug 5, 2026 · Linux Linux

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-40280. EPSS is 0.15%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.15%
Remediation
Vendor / distro source
Affected products
vendor Linux Linux 295c9b554f6dfcd2d368fae6e6fa22ee5b79c123

In the Linux kernel, the following vulnerability has been resolved: tipc: Fix use-after-free in tipc_mon_reinit_self(). syzbot reported use-after-free of tipc_net(net)->monitors[] in tipc_mon_reinit_self(). [0] The array is protected by RTNL, but tipc_mon_reinit_self() iterates over it without RTNL. tipc_mon_reinit_self() is called from tipc_net_finalize(), which is always under RTNL except for tipc_net_finalize_work(). Let's hold RTNL in tipc_net_finalize_work(). [0]: BUG: KASAN: slab-use-after-free in __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] BUG: KASAN: slab-use-

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 295c9b554f6dfcd2d368fae6e6fa22ee5b79c123295c9b554f6dfcd2d368fae6e6fa22ee5b79c123

How to fix CVE-2025-40280

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-40280. EPSS is 0.15%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux 295c9b554f6dfcd2d368fae6e6fa22ee5b79c123 295c9b554f6dfcd2d368fae6e6fa22ee5b79c123. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 6, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: tipc: Fix use-after-free in tipc_mon_reinit_self(). syzbot reported use-after-free of tipc_net(net)->monitors[] in tipc_mon_reinit_self(). [0] The array is protected by RTNL, but tipc_mon_reinit_self() iterates over it without RTNL. tipc_mon_reinit_self() is called from tipc_net_finalize(), which is always under RTNL except for ti

  2. Aug 5, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: tipc: Fix use-after-free in tipc_mon_reinit_self(). syzbot reported use-after-free of tipc_net(net)->monitors[] in tipc_mon_reinit_self(). [0] The array is protected by RTNL, but tipc_mon_reinit_self() iterates over it without RTNL. tipc_mon_reinit_self() is called from tipc_net_finalize(), which is always under RTNL except for ti

Sources

  • CVE.orgVulnerability recordCVE-2025-40280

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-40280

    30-day exploitation probability 0.15%

    first.org
  • EUVDVulnerability recordEUVD-2025-201575

    In the Linux kernel, the following vulnerability has been resolved: tipc: Fix use-after-free in tipc_mon_reinit_self(). syzbot reported use-after-free of tipc_net(net)->monitors[] in tipc_mon_reinit_self(). [0] The array is protected by RTNL, but tipc_mon_reinit_self() iterates o

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 1, 2026
  • CVE.orgOct 26, 2026
  • EUVDOct 26, 2026