CVE-2026-72229batman-adv: clean untagged VLAN on netdev registration failure
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 before 86e32dfb6a6fe29898f4a562b7b6e38e480bba4d; from 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 before 06ae245168268b705a204f93c318b30107d10e92; from 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 before dbca15fcbeed5276af440a53aed3901590fa7fc9; from 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 before f2423da55976ea249f73029e468aefda4b94acba; from 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 before f15ca6250591cfe78408114a54eaa8d58da51bfa; from 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 before c945f6007e7851e74706c72f98763023699bcd97; 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 builds before 5a82c558098889cc8bfff85cc62f563833205d91; from 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 before 8669a550c752d86baebc5fdc83b8ff35c4372c0e | CNA record |
References
- https://git.kernel.org/stable/c/86e32dfb6a6fe29898f4a562b7b6e38e480bba4d
- https://git.kernel.org/stable/c/06ae245168268b705a204f93c318b30107d10e92
- https://git.kernel.org/stable/c/dbca15fcbeed5276af440a53aed3901590fa7fc9
- https://git.kernel.org/stable/c/f2423da55976ea249f73029e468aefda4b94acba
- https://git.kernel.org/stable/c/f15ca6250591cfe78408114a54eaa8d58da51bfa
- https://git.kernel.org/stable/c/c945f6007e7851e74706c72f98763023699bcd97
- https://git.kernel.org/stable/c/5a82c558098889cc8bfff85cc62f563833205d91
- https://git.kernel.org/stable/c/8669a550c752d86baebc5fdc83b8ff35c4372c0e
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.