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.
Affected products
linux: linux kernel
References6
- git.kernel.org/stable/c/024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e Patch
- git.kernel.org/stable/c/64af43033503458c46023e56d6ae7bb0f824b55f Patch
- git.kernel.org/stable/c/8fde939b0206afc1d5846217a01a16b9bc8c7896 Patch
- git.kernel.org/stable/c/bae53b3baf2ff2f45f9205c438818fc055601a54 Patch
- git.kernel.org/stable/c/0b60fb44247eab81e7a9490c38ca62c7120eec75
- git.kernel.org/stable/c/11d35b11013442576f35fd9e8a8fc16155101906
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 5 · as of 14 November 2026
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