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CVE-2026-89949

Unknown

Last modified

CVE-2026-89949 is a vulnerability of currently unknown severity. 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..

Description

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

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f, < b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20; >= 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f, < 15dbfb37f0e1a085d48deeb8f5238e9d28127dde; >= 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f, < a170d4617e8cca05a1314de61728a262ef272782; >= 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f, < c74a4acf41d19f21199dec2d6c813c90d31cd02c; >= 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f, < 91c99b4e152023c7d458a5dedd52d2b0d7df4ce3; >= 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f, < 1cfa7d5f70d54cb8c7e82df739430782d1996ee1; >= 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f, < 0c2df865338bbf92aa45b9253e5f9b8ef2d9992f; >= 5c3a0e5535933349a5d6e6bc8b704e0611f21d3f, < 0121afa52cdb88cfb4d5d7bd126a23a9100121d8
LinuxLinux3.8

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89949?
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.
How severe is CVE-2026-89949?
Severity scoring for CVE-2026-89949 is pending analysis.
How do I fix CVE-2026-89949?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST