Answer in brief
CVE-2026-98345 records a Unknown severity vulnerability in wifi: cfg80211: check IP header size in cfg80211_classify8021d(). 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 | >=e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 <18d5547327c202cda33ad2bbd203220c2c62c8a7 || >=e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 <3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734 || >=e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 <c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7 || >=e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 <12c0abd4d1c1b04a7663d04ba85268bc9ad9c017 || >=e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 <f33ad4e2f846e55cf4637419268f093ac9f1a765 || >=e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 <a2cdb4a675ca04c4ac8cc962848082d8ce065008 || >=e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 <65893c8d28f239c7ddad5a83683be193a9133e9b || >=e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 <48b2c5c628b09cf36cbeca53e0432fc2a7518be7 | 18d5547327c202cda33ad2bbd203220c2c62c8a7, 3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734, c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7, 12c0abd4d1c1b04a7663d04ba85268bc9ad9c017, f33ad4e2f846e55cf4637419268f093ac9f1a765, a2cdb4a675ca04c4ac8cc962848082d8ce065008, 65893c8d28f239c7ddad5a83683be193a9133e9b, 48b2c5c628b09cf36cbeca53e0432fc2a7518be7 |
| Linux/Linuxgeneric | 2.6.31 | Not reported |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: check IP header size in cfg80211_classify8021d() A frame that looks like IP can be transmitted, but be too short, so the DS field is read incorrectly: BUG: KMSAN: uninit-value in cfg80211_classify8021d+0x99d/0x12b0 net/wireless/util.c:1027 cfg80211_classify8021d+0x99d/0x12b0 net/wireless/util.c:1027 ieee80211_select_queue+0x37a/0x9e0 net/mac80211/wme.c:180 __ieee80211_subif_start_xmit+0x60f/0x1d90 net/mac80211/tx.c:4304 ieee80211_subif_start_xmit+0xa8/0x6d0 net/mac80211/tx.c:4538 ... packet_sendmsg+0x9173/0xa2a0 net/packet/af_packet.c:3108 Use skb_header_pointer() like the MPLS case.
Quoted source text, attributed separately from HOL analysis.