PT-2026-106674 · Linux · Linux
CVE-2026-98345
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Published
2026-10-06
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Updated
2026-10-06
None
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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.
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Related Identifiers
Affected Products
Linux