batman-adv: clean untagged VLAN on netdev registration failure
Summary
| CVE | CVE-2026-72229 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-15 06:21:49 UTC |
| Updated | 2026-08-17 06:18:24 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: batman-adv: clean untagged VLAN on netdev registration failure When an mesh interface is registered, it creates an untagged struct batadv_meshif_vlan on top of it via the NETDEV_REGISTER notifier. But in this process, another receiver of this notification can veto the registration. The netdev registration will be aborted because of this veto. The register_netdevice() call will try to clean up the net_device using unregister_netdevice_queue() - which only uses the .priv_destructor to free private resources. In this situation, .dellink will not be called. The cleanup of the untagged batadv_meshif_vlan must thefore be done in the destructor to avoid a leak of this object. |
Risk And Classification
EPSS: 0.002100000 probability, percentile 0.115870000 (date 2026-08-16)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 86e32dfb6a6fe29898f4a562b7b6e38e480bba4d git | Not specified |
| CNA | Linux | Linux | affected 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 06ae245168268b705a204f93c318b30107d10e92 git | Not specified |
| CNA | Linux | Linux | affected 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 dbca15fcbeed5276af440a53aed3901590fa7fc9 git | Not specified |
| CNA | Linux | Linux | affected 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 f2423da55976ea249f73029e468aefda4b94acba git | Not specified |
| CNA | Linux | Linux | affected 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 f15ca6250591cfe78408114a54eaa8d58da51bfa git | Not specified |
| CNA | Linux | Linux | affected 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 c945f6007e7851e74706c72f98763023699bcd97 git | Not specified |
| CNA | Linux | Linux | affected 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 5a82c558098889cc8bfff85cc62f563833205d91 git | Not specified |
| CNA | Linux | Linux | affected 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 8669a550c752d86baebc5fdc83b8ff35c4372c0e git | Not specified |
| CNA | Linux | Linux | affected 3.13 | Not specified |
| CNA | Linux | Linux | unaffected 3.13 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.261 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.212 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.178 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.145 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.97 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.40 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.5 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/5a82c558098889cc8bfff85cc62f563833205d91 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/06ae245168268b705a204f93c318b30107d10e92 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/c945f6007e7851e74706c72f98763023699bcd97 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/dbca15fcbeed5276af440a53aed3901590fa7fc9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/8669a550c752d86baebc5fdc83b8ff35c4372c0e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/f2423da55976ea249f73029e468aefda4b94acba | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/86e32dfb6a6fe29898f4a562b7b6e38e480bba4d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/f15ca6250591cfe78408114a54eaa8d58da51bfa | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.