Answer in brief
CVE-2026-89949 records a Unknown severity vulnerability in batman-adv: dat: avoid unaligned fault in IP extraction. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=5c3a0e5535933349a5d6e6bc8b704e0611f21d3f <b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20 || >=5c3a0e5535933349a5d6e6bc8b704e0611f21d3f <15dbfb37f0e1a085d48deeb8f5238e9d28127dde || >=5c3a0e5535933349a5d6e6bc8b704e0611f21d3f <a170d4617e8cca05a1314de61728a262ef272782 || >=5c3a0e5535933349a5d6e6bc8b704e0611f21d3f <c74a4acf41d19f21199dec2d6c813c90d31cd02c || >=5c3a0e5535933349a5d6e6bc8b704e0611f21d3f <91c99b4e152023c7d458a5dedd52d2b0d7df4ce3 || >=5c3a0e5535933349a5d6e6bc8b704e0611f21d3f <1cfa7d5f70d54cb8c7e82df739430782d1996ee1 || >=5c3a0e5535933349a5d6e6bc8b704e0611f21d3f <0c2df865338bbf92aa45b9253e5f9b8ef2d9992f || >=5c3a0e5535933349a5d6e6bc8b704e0611f21d3f <0121afa52cdb88cfb4d5d7bd126a23a9100121d8 | b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20, 15dbfb37f0e1a085d48deeb8f5238e9d28127dde, a170d4617e8cca05a1314de61728a262ef272782, c74a4acf41d19f21199dec2d6c813c90d31cd02c, 91c99b4e152023c7d458a5dedd52d2b0d7df4ce3, 1cfa7d5f70d54cb8c7e82df739430782d1996ee1, 0c2df865338bbf92aa45b9253e5f9b8ef2d9992f, 0121afa52cdb88cfb4d5d7bd126a23a9100121d8 |
| Linux/Linuxgeneric | 3.8 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
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.
Quoted source text, attributed separately from HOL analysis.