CVE-2026-80600

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb61ec31c85756bbc898fb892555509afe709459a < a82fc217cb7a447313c76ebf9f09b100771b0ddfaffected
LinuxLinuxb61ec31c85756bbc898fb892555509afe709459a < 86aa79b43e5b561fd3648891165bd7313b541315affected
LinuxLinuxb61ec31c85756bbc898fb892555509afe709459a < d755cd001fa2c248e186c1fc3df3d11d97dc843caffected
LinuxLinuxb61ec31c85756bbc898fb892555509afe709459a < 3404be97b940a9b1ae1aea5fdbc6cdbbe9cd5146affected
LinuxLinuxb61ec31c85756bbc898fb892555509afe709459a < 01678c53a7717a748aee388b6839e7b9761d641caffected
LinuxLinuxb61ec31c85756bbc898fb892555509afe709459a < 3b4c70c40f2e135a50cd38fc61c7d23a296a9981affected
LinuxLinuxb61ec31c85756bbc898fb892555509afe709459a < 059a70e1d12d6d99310e0599d37b0323557569a8affected
LinuxLinuxb61ec31c85756bbc898fb892555509afe709459a < 48067b2ae4504500a7093d9e1e16b42e70330480affected
LinuxLinux5.1affected
LinuxLinux0 < 5.1unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References