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CVE-2026-98345

Unknown

Last modified

CVE-2026-98345 is a vulnerability of currently unknown severity. 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..

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= e31a16d6f64ef0e324c6f54d5112703c3f13a9c4, < 18d5547327c202cda33ad2bbd203220c2c62c8a7; >= e31a16d6f64ef0e324c6f54d5112703c3f13a9c4, < 3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734; >= e31a16d6f64ef0e324c6f54d5112703c3f13a9c4, < c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7; >= e31a16d6f64ef0e324c6f54d5112703c3f13a9c4, < 12c0abd4d1c1b04a7663d04ba85268bc9ad9c017; >= e31a16d6f64ef0e324c6f54d5112703c3f13a9c4, < f33ad4e2f846e55cf4637419268f093ac9f1a765; >= e31a16d6f64ef0e324c6f54d5112703c3f13a9c4, < a2cdb4a675ca04c4ac8cc962848082d8ce065008; >= e31a16d6f64ef0e324c6f54d5112703c3f13a9c4, < 65893c8d28f239c7ddad5a83683be193a9133e9b; >= e31a16d6f64ef0e324c6f54d5112703c3f13a9c4, < 48b2c5c628b09cf36cbeca53e0432fc2a7518be7
LinuxLinux2.6.31

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98345?
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.
How severe is CVE-2026-98345?
Severity scoring for CVE-2026-98345 is pending analysis.
How do I fix CVE-2026-98345?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST