CVE-2026-89949

Summary

In the Linux kernel, the following vulnerability has been resolved:

batman-adv: dat: avoid unaligned fault in IP extraction

Independent of the alignment of the ARP packet in the SKB, either the batadv_arp_ip_src or the batadv_arp_ip_dst will have an unaligned access (on HW without native unaligned read support).

Use get_unaligned() to handle this properly on all architectures.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux5c3a0e5535933349a5d6e6bc8b704e0611f21d3f < b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20affected
LinuxLinux5c3a0e5535933349a5d6e6bc8b704e0611f21d3f < 15dbfb37f0e1a085d48deeb8f5238e9d28127ddeaffected
LinuxLinux5c3a0e5535933349a5d6e6bc8b704e0611f21d3f < a170d4617e8cca05a1314de61728a262ef272782affected
LinuxLinux5c3a0e5535933349a5d6e6bc8b704e0611f21d3f < c74a4acf41d19f21199dec2d6c813c90d31cd02caffected
LinuxLinux5c3a0e5535933349a5d6e6bc8b704e0611f21d3f < 91c99b4e152023c7d458a5dedd52d2b0d7df4ce3affected
LinuxLinux5c3a0e5535933349a5d6e6bc8b704e0611f21d3f < 1cfa7d5f70d54cb8c7e82df739430782d1996ee1affected
LinuxLinux5c3a0e5535933349a5d6e6bc8b704e0611f21d3f < 0c2df865338bbf92aa45b9253e5f9b8ef2d9992faffected
LinuxLinux5c3a0e5535933349a5d6e6bc8b704e0611f21d3f < 0121afa52cdb88cfb4d5d7bd126a23a9100121d8affected
LinuxLinux3.8affected
LinuxLinux0 < 3.8unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.51 <= 6.18.*unaffected
LinuxLinux7.2.5 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References