CVE-2026-80600batman-adv: dat: acquire ARP hw source only after skb realloc
Updated under an hour ago ()
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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: dat: acquire ARP hw source only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- 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 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from b61ec31c85756bbc898fb892555509afe709459a before a82fc217cb7a447313c76ebf9f09b100771b0ddf; from b61ec31c85756bbc898fb892555509afe709459a before 86aa79b43e5b561fd3648891165bd7313b541315; from b61ec31c85756bbc898fb892555509afe709459a before d755cd001fa2c248e186c1fc3df3d11d97dc843c; from b61ec31c85756bbc898fb892555509afe709459a before 3404be97b940a9b1ae1aea5fdbc6cdbbe9cd5146; from b61ec31c85756bbc898fb892555509afe709459a before 01678c53a7717a748aee388b6839e7b9761d641c; from b61ec31c85756bbc898fb892555509afe709459a before 3b4c70c40f2e135a50cd38fc61c7d23a296a9981; from b61ec31c85756bbc898fb892555509afe709459a before 059a70e1d12d6d99310e0599d37b0323557569a8; from b61ec31c85756bbc898fb892555509afe709459a before 48067b2ae4504500a7093d9e1e16b42e70330480 | CNA record |
References
- https://git.kernel.org/stable/c/a82fc217cb7a447313c76ebf9f09b100771b0ddf
- https://git.kernel.org/stable/c/86aa79b43e5b561fd3648891165bd7313b541315
- https://git.kernel.org/stable/c/d755cd001fa2c248e186c1fc3df3d11d97dc843c
- https://git.kernel.org/stable/c/3404be97b940a9b1ae1aea5fdbc6cdbbe9cd5146
- https://git.kernel.org/stable/c/01678c53a7717a748aee388b6839e7b9761d641c
- https://git.kernel.org/stable/c/3b4c70c40f2e135a50cd38fc61c7d23a296a9981
- https://git.kernel.org/stable/c/059a70e1d12d6d99310e0599d37b0323557569a8
- https://git.kernel.org/stable/c/48067b2ae4504500a7093d9e1e16b42e70330480
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.