CVE-2026-64091 batman-adv: tt: fix TOCTOU race for reported vlans

🗓️ 19 Jul 2026 15:40:00Reported by GoogleType

osv

osv🔗 osv.dev👁 3 Views

batman-adv tv: fix race condition for reported VLANs by overestimating initial buffer size.

Reporter	Title	Published	Views	Family All 8
ATTACKERKB	CVE-2026-64091	19 Jul 202615:40	–	attackerkb
CVE	CVE-2026-64091	19 Jul 202615:40	–	cve
Cvelist	CVE-2026-64091 batman-adv: tt: fix TOCTOU race for reported vlans	19 Jul 202615:40	–	cvelist
EUVD	EUVD-2026-45776	19 Jul 202615:40	–	euvd
NVD	CVE-2026-64091	19 Jul 202616:17	–	nvd
OSV	DEBIAN-CVE-2026-64091	19 Jul 202616:17	–	osv
OSV	UBUNTU-CVE-2026-64091	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61408	19 Jul 202600:00	–	ptsecurity

Source	Link
git	www.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
git	www.git.kernel.org/stable/c/211ea59988e1cba43cb0367ad65d379b56f9c3bd
git	www.git.kernel.org/stable/c/4cc85aec8d3c9ab4dc716dc9f1ed36fca16b227f
git	www.git.kernel.org/stable/c/65a1e67339aa8c95ac544b796946af388930ee23
git	www.git.kernel.org/stable/c/724a8eb4155669797c96b70d70e354284ae3b5a8
git	www.git.kernel.org/stable/c/94d27005016be15ffc638b2ecbc4d58805ad7b48
git	www.git.kernel.org/stable/c/9a9c859457bc440a55773e01ff18b1bb5bab6836
git	www.git.kernel.org/stable/c/b4d4efd4e351593c81e9293d4b4408d244fa5ee7
git	www.git.kernel.org/stable/c/e4236bf3ec8d6bb15d0d8d825dcf9933a7d6666b
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64091.json

20 Jul 2026 03:46Current

5.5Medium risk

Vulners AI Score5.5

CVSS 3.19.8

EPSS0.00184

batman-adv race condition reported vlans buffer size