Riskcovery

CVE-2026-45917

ipvs: do not keep dest_dst if dev is going down

State
Published
Severity
Not scored
Published
May 27, 2026
Updated
Oct 30, 2026
Reserved
May 13, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

ipvs: do not keep dest_dst if dev is going down

There is race between the netdev notifier ip_vs_dst_event() and the code that caches dst with dev that is going down. As the FIB can be notified for the closed device after our handler finishes, it is possible valid route to be returned and cached resuling in a leaked dev reference until the dest is not removed.

To prevent new dest_dst to be attached to dest just after the handler dropped the old one, add a netif_running() check to make sure the notifier handler is not currently running for device that is closing.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 7a4f0761fce32ff4918a7c23b08db564ad33092d to before 0b60fb44247eab81e7a9490c38ca62c7120eec75Affected
  • 7a4f0761fce32ff4918a7c23b08db564ad33092d to before 11d35b11013442576f35fd9e8a8fc16155101906Affected
  • 7a4f0761fce32ff4918a7c23b08db564ad33092d to before 64af43033503458c46023e56d6ae7bb0f824b55fAffected
  • 7a4f0761fce32ff4918a7c23b08db564ad33092d to before bae53b3baf2ff2f45f9205c438818fc055601a54Affected
  • 7a4f0761fce32ff4918a7c23b08db564ad33092d to before 024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3eAffected
  • 7a4f0761fce32ff4918a7c23b08db564ad33092d to before 8fde939b0206afc1d5846217a01a16b9bc8c7896Affected
LinuxLinux
  • 2.6.39Affected
  • before 2.6.39Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.75 through 6.12.*Not affected
  • 6.18.14 through 6.18.*Not affected
  • 6.19.4 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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