CVE-2026-45917
ipvs: do not keep dest_dst if dev is going down
MEDIUM 5.5
At a glance
- Source
- NVD
- EPSS
- EPSS 0.15 % · percentile 5 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Undergoing Analysis
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.
References
- https://git.kernel.org/stable/c/11d35b11013442576f35fd9e8a8fc16155101906
- https://git.kernel.org/stable/c/64af43033503458c46023e56d6ae7bb0f824b55f
- https://git.kernel.org/stable/c/bae53b3baf2ff2f45f9205c438818fc055601a54
- https://git.kernel.org/stable/c/024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e
- https://git.kernel.org/stable/c/8fde939b0206afc1d5846217a01a16b9bc8c7896
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2026-32383
- GCVE · GCVE-0-2026-45917
CERT-FR advisories
- CERTFR-2026-AVI-1091 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1064 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1029 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0861 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0831 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.39.1 < 6.12.75cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.14cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 6.19.4cpe:2.3:o:linux:linux_kernel:2.6.39:-:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 7a4f0761fce32ff4918a7c23b08db564ad33092d < 11d35b11013442576f35fd9e8a8fc16155101906 ; affected 7a4f0761fce32ff4918a7c23b08db564ad33092d < 64af43033503458c46023e56d6ae7bb0f824b55f ; affected 7a4f0761fce32ff4918a7c23b08db564ad33092d < bae53b3baf2ff2f45f9205c438818fc055601a54 ; affected 7a4f0761fce32ff4918a7c23b08db564ad33092d < 024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e ; affected 7a4f0761fce32ff4918a7c23b08db564ad33092d < 8fde939b0206afc1d5846217a01a16b9bc8c7896 |
| Linux · Linux | affected 2.6.39 ; unaffected 0 < 2.6.39 ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.75 ≤ 6.12.* ; unaffected 6.18.14 ≤ 6.18.* ; unaffected 6.19.4 ≤ 6.19.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |