CVE-2026-98345

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Source
https://cve.org/CVERecord?id=CVE-2026-98345
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98345.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-98345
Downstream
Published
2026-10-06T08:46:34Z
Modified
2026-10-08T02:52:58Z
Summary
wifi: cfg80211: check IP header size in cfg80211_classify8021d()
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98345.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e31a16d6f64ef0e324c6f54d5112703c3f13a9c4
Fixed
18d5547327c202cda33ad2bbd203220c2c62c8a7
Fixed
3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734
Fixed
c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7
Fixed
12c0abd4d1c1b04a7663d04ba85268bc9ad9c017
Fixed
f33ad4e2f846e55cf4637419268f093ac9f1a765
Fixed
a2cdb4a675ca04c4ac8cc962848082d8ce065008
Fixed
65893c8d28f239c7ddad5a83683be193a9133e9b
Fixed
48b2c5c628b09cf36cbeca53e0432fc2a7518be7

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98345.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.31
Fixed
5.10.271
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.222
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.189
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.158
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.112
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.54
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98345.json"