CVE-2026-98702
Last modified
CVE-2026-98702 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: reject invalid 320 MHz CSA bandwidth The HT/VHT channel definition validator can receive a 320 MHz bandwidth indication from a received CSA frame on a non-6 GHz link. It warns for this unsupported width but continues with an uninitialized vht_operation.chan_width, which is then read by ieee80211_chandef_vht_oper(). With panic_on_warn enabled, this lets a received frame panic the kernel. Reject the channel definition before entering the VHT operation conversion.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: reject invalid 320 MHz CSA bandwidth The HT/VHT channel definition validator can receive a 320 MHz bandwidth indication from a received CSA frame on a non-6 GHz link. It warns for this unsupported width but continues with an uninitialized vht_operation.chan_width, which is then read by ieee80211_chandef_vht_oper(). With panic_on_warn enabled, this lets a received frame panic the kernel. Reject the channel definition before entering the VHT operation conversion. This preserves the existing CSA fallback while avoiding both the warning and the uninitialized read.
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 21c3f8f95554feff9bed15703e89adbe582e0383, < cf0ddacce173890407ed3fa50c8ea9b3c0cc0e16; >= 21c3f8f95554feff9bed15703e89adbe582e0383, < 1892e71aa2e5ee667d87c6e49e3661f5e290303b; >= 21c3f8f95554feff9bed15703e89adbe582e0383, < 79b3ce0d881cd6e5d4d3496b19f5cc5e7089a56c; >= 21c3f8f95554feff9bed15703e89adbe582e0383, < 56e236759f0a8dc910c2ae7cd3c161f298ee5794 |
| Linux | Linux | 6.9 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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