wifi: mac80211: reject invalid 320 MHz CSA bandwidth
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.12.113, 6.18.56, 7.2.10
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 21c3f8f95554feff9bed15703e89adbe582e0383 · fixed in cf0ddacce173890407ed3fa50c8ea9b3c0cc0e16; From 21c3f8f95554feff9bed15703e89adbe582e0383 · fixed in 1892e71aa2e5ee667d87c6e49e3661f5e290303b; From 21c3f8f95554feff9bed15703e89adbe582e0383 · fixed in 79b3ce0d881cd6e5d4d3496b19f5cc5e7089a56c; From 21c3f8f95554feff9bed15703e89adbe582e0383 · fixed in 56e236759f0a8dc910c2ae7cd3c161f298ee5794
- Linux Linux
6.9
- KernelLinux
From 6.9.0 · fixed in 6.12.113; From 6.13.0 · fixed in 6.18.56; From 6.19.0 · fixed in 7.2.10