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CVE-2026-98345

wifi: cfg80211: check IP header size in cfg80211_classify8021d()

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version e31a16d6f64ef0e324c6f54d5112703c3f13a9c4
Version < 18d5547327c202cda33ad2bbd203220c2c62c8a7
Status affected
Version e31a16d6f64ef0e324c6f54d5112703c3f13a9c4
Version < 3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734
Status affected
Version e31a16d6f64ef0e324c6f54d5112703c3f13a9c4
Version < c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7
Status affected
Version e31a16d6f64ef0e324c6f54d5112703c3f13a9c4
Version < 12c0abd4d1c1b04a7663d04ba85268bc9ad9c017
Status affected
Version e31a16d6f64ef0e324c6f54d5112703c3f13a9c4
Version < f33ad4e2f846e55cf4637419268f093ac9f1a765
Status affected
Version e31a16d6f64ef0e324c6f54d5112703c3f13a9c4
Version < a2cdb4a675ca04c4ac8cc962848082d8ce065008
Status affected
Version e31a16d6f64ef0e324c6f54d5112703c3f13a9c4
Version < 65893c8d28f239c7ddad5a83683be193a9133e9b
Status affected
Version e31a16d6f64ef0e324c6f54d5112703c3f13a9c4
Version < 48b2c5c628b09cf36cbeca53e0432fc2a7518be7
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 2.6.31
Status affected
Version 0
Version < 2.6.31
Status unaffected
Version <= 5.10.*
Version 5.10.271
Status unaffected
Version <= 5.15.*
Version 5.15.222
Status unaffected
Version <= 6.1.*
Version 6.1.189
Status unaffected
Version <= 6.6.*
Version 6.6.158
Status unaffected
Version <= 6.12.*
Version 6.12.112
Status unaffected
Version <= 6.18.*
Version 6.18.54
Status unaffected
Version <= 7.2.*
Version 7.2.8
Status unaffected
Version <= *
Version 7.3-rc4
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.073
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/18d5547327c202cda33ad2bbd203220c2c62c8a7
https://git.kernel.org/stable/c/3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734
https://git.kernel.org/stable/c/c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7
https://git.kernel.org/stable/c/12c0abd4d1c1b04a7663d04ba85268bc9ad9c017
https://git.kernel.org/stable/c/f33ad4e2f846e55cf4637419268f093ac9f1a765
https://git.kernel.org/stable/c/a2cdb4a675ca04c4ac8cc962848082d8ce065008
https://git.kernel.org/stable/c/65893c8d28f239c7ddad5a83683be193a9133e9b
https://git.kernel.org/stable/c/48b2c5c628b09cf36cbeca53e0432fc2a7518be7