CVE-2026-80600
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux
PublishedAug 28, 2026
First seenAug 28, 2026
How to fix
Update
- Linux Linuxa82fc217cb7a447313c76ebf9f09b100771b0ddf, 86aa79b43e5b561fd3648891165bd7313b541315, d755cd001fa2c248e186c1fc3df3d11d97dc843c, 3404be97b940a9b1ae1aea5fdbc6cdbbe9cd5146, 01678c53a7717a748aee388b6839e7b9761d641c, 3b4c70c40f2e135a50cd38fc61c7d23a296a9981, 059a70e1d12d6d99310e0599d37b0323557569a8, 48067b2ae4504500a7093d9e1e16b42e70330480 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | b61ec31c85756bbc898fb892555509afe709459a ≤ v < a82fc217cb7a447313c76ebf9f09b100771b0ddf, b61ec31c85756bbc898fb892555509afe709459a ≤ v < 86aa79b43e5b561fd3648891165bd7313b541315, b61ec31c85756bbc898fb892555509afe709459a ≤ v < d755cd001fa2c248e186c1fc3df3d11d97dc843c, b61ec31c85756bbc898fb892555509afe709459a ≤ v < 3404be97b940a9b1ae1aea5fdbc6cdbbe9cd5146, b61ec31c85756bbc898fb892555509afe709459a ≤ v < 01678c53a7717a748aee388b6839e7b9761d641c, b61ec31c85756bbc898fb892555509afe709459a ≤ v < 3b4c70c40f2e135a50cd38fc61c7d23a296a9981, b61ec31c85756bbc898fb892555509afe709459a ≤ v < 059a70e1d12d6d99310e0599d37b0323557569a8, b61ec31c85756bbc898fb892555509afe709459a ≤ v < 48067b2ae4504500a7093d9e1e16b42e70330480, 5.1 | a82fc217cb7a447313c76ebf9f09b100771b0ddf, 86aa79b43e5b561fd3648891165bd7313b541315, d755cd001fa2c248e186c1fc3df3d11d97dc843c, 3404be97b940a9b1ae1aea5fdbc6cdbbe9cd5146, 01678c53a7717a748aee388b6839e7b9761d641c, 3b4c70c40f2e135a50cd38fc61c7d23a296a9981, 059a70e1d12d6d99310e0599d37b0323557569a8, 48067b2ae4504500a7093d9e1e16b42e70330480 |
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