CVE-2026-45917ipvs: do not keep dest_dst if dev is going down
- 5.5MediumCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Undergoing Analysis | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 7a4f0761fce32ff4918a7c23b08db564ad33092d – < 0b60fb44247eab81e7a9490c38ca62c7120eec75
- affected 7a4f0761fce32ff4918a7c23b08db564ad33092d – < 11d35b11013442576f35fd9e8a8fc16155101906
- affected 7a4f0761fce32ff4918a7c23b08db564ad33092d – < 64af43033503458c46023e56d6ae7bb0f824b55f
- affected 7a4f0761fce32ff4918a7c23b08db564ad33092d – < bae53b3baf2ff2f45f9205c438818fc055601a54
- affected 7a4f0761fce32ff4918a7c23b08db564ad33092d – < 024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e
- affected 7a4f0761fce32ff4918a7c23b08db564ad33092d – < 8fde939b0206afc1d5846217a01a16b9bc8c7896
- affected 2.6.39
- unaffected < 2.6.39
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.75 – ≤ 6.12.*
- unaffected 6.18.14 – ≤ 6.18.*
- unaffected 6.19.4 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References6
- https://git.kernel.org/stable/c/0b60fb44247eab81e7a9490c38ca62c7120eec75 (opens in a new tab)
- https://git.kernel.org/stable/c/11d35b11013442576f35fd9e8a8fc16155101906 (opens in a new tab)
- https://git.kernel.org/stable/c/64af43033503458c46023e56d6ae7bb0f824b55f (opens in a new tab)
- https://git.kernel.org/stable/c/bae53b3baf2ff2f45f9205c438818fc055601a54 (opens in a new tab)
- https://git.kernel.org/stable/c/024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e (opens in a new tab)
- https://git.kernel.org/stable/c/8fde939b0206afc1d5846217a01a16b9bc8c7896 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32383 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-45917)Record last updated .