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CVE-2026-89949

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, and 2 more
None on Exploit-DB, Metasploit or GitHub

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f · fixed in b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20; From 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f · fixed in 15dbfb37f0e1a085d48deeb8f5238e9d28127dde; From 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f · fixed in a170d4617e8cca05a1314de61728a262ef272782; From 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f · fixed in c74a4acf41d19f21199dec2d6c813c90d31cd02c; From 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f · fixed in 91c99b4e152023c7d458a5dedd52d2b0d7df4ce3; From 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f · fixed in 1cfa7d5f70d54cb8c7e82df739430782d1996ee1; From 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f · fixed in 0c2df865338bbf92aa45b9253e5f9b8ef2d9992f; From 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f · fixed in 0121afa52cdb88cfb4d5d7bd126a23a9100121d8

  • Linux Linux

    3.8

  • KernelLinux

    From 3.8.0 · fixed in 5.10.270; From 5.11.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.51; From 6.19.0 · fixed in 7.2.5

References 8

git.kernel.org