batman-adv: fix panic during interface removal (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 13 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix panic during interface removal Reference counting is used to ensure that batadv_hardif_neigh_node and batadv_hard_iface are not freed before/during batadv_v_elp_throughput_metric_update work is finished. But there isn't a guarantee that the hard if will remain associated with a soft interface up until the work is finished. This fixes a crash triggered by reboot that looks like this: Call trace: batadv_v_mesh_free+0xd0/0x4dc [batman_adv] batadv_v_elp_throughput_metric_update+0x1c/0xa4 process_one_work+0x178/0x398 worker_thread+0x2e8/0x4d0 kthread+0xd8/0xdc ret_from_fork+0x10/0x20 (the batadv_v_mesh_free call is misleading, and does not actually happen) I was able to make the issue happen more reliably by changing hardif_neigh->bat_v.metric_work work to be delayed work. This allowed me to track down and confirm the fix. [sven@narfation.org: prevent entering batadv_v_elp_get_throughput without soft_iface]
References
- https://git.kernel.org/stable/c/167422a07096a6006599067c8b55884064fa0b72
- https://git.kernel.org/stable/c/ce3f1545bf8fa28bd05ec113679e8e6cd23af577
- https://git.kernel.org/stable/c/f0a16c6c79768180333f3e41ce63f32730e3c3af
- https://git.kernel.org/stable/c/7eb5dd201695645af071592a50026eb780081a72
- https://git.kernel.org/stable/c/072b2787321903287a126c148e8db87dd7ef96fe
- https://git.kernel.org/stable/c/2c3fb7df4cc6d043f70d4a8a10f8b915bbfb75e7
- https://git.kernel.org/stable/c/522b1596ea19e327853804da2de60aeb9c5d6f42
- https://git.kernel.org/stable/c/ccb7276a6d26d6f8416e315b43b45e15ee7f29e2
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
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-2025-5148
- GCVE · GCVE-0-2025-21781
CERT-FR advisories
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0758 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0743 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0721 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0605 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0559 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0509 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0463 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0307 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0277 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.6 < 5.4.291cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.235cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.179cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.129cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.79cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.16cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.13.4cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected c833484e5f3872a38fe232c663586069d5ad9645 < 167422a07096a6006599067c8b55884064fa0b72 ; affected c833484e5f3872a38fe232c663586069d5ad9645 < ce3f1545bf8fa28bd05ec113679e8e6cd23af577 ; affected c833484e5f3872a38fe232c663586069d5ad9645 < f0a16c6c79768180333f3e41ce63f32730e3c3af ; affected c833484e5f3872a38fe232c663586069d5ad9645 < 7eb5dd201695645af071592a50026eb780081a72 ; affected c833484e5f3872a38fe232c663586069d5ad9645 < 072b2787321903287a126c148e8db87dd7ef96fe ; affected c833484e5f3872a38fe232c663586069d5ad9645 < 2c3fb7df4cc6d043f70d4a8a10f8b915bbfb75e7 |
| Linux · Linux | affected 4.6 ; unaffected 0 < 4.6 ; unaffected 5.4.291 ≤ 5.4.* ; unaffected 5.10.235 ≤ 5.10.* ; unaffected 5.15.179 ≤ 5.15.* ; unaffected 6.1.129 ≤ 6.1.* |
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 |