CVE Catalog
CVE-2026-80600
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk0.18%
7th percentile - higher than 7% of all known CVEs
Summary
In the Linux kernel, the batman-adv dat module does not reassign the ARP hardware source pointer after pskb_may_pull() reallocates the buffer. This can lead to a use-after-free condition.
Risk Assessment
The vulnerability could be exploited to corrupt kernel memory, potentially leading to privilege escalation or system crash.
Recommendation
Apply the Linux kernel update that fixes CVE-2026-80600.
Original NVD description (English source)
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.