In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV
When a CSA countdown is active, mt7996_mcu_beacon_cntdwn() emits two
bss_bcn_cntdwn_tlv entries (the CSA countdown and the CCA-abort BCC), but
MT7996_BEACON_UPDATE_SIZE only reserved one. With MBSSID enabled and a
near-maximum beacon template the extra 8 bytes could push the offload
command past MT7996_MAX_BSS_OFFLOAD_SIZE and trigger skb_over_panic().
Reserve room for both countdown TLVs.
CVE-2026-90366
NONE
EPSS 0.17%
Updated Sep 17, 2026
Linux
https://git.kernel.org/stable/c/1a51aff0e048dc5b8252d65808b79939c942d6ec
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1d348f96623ec20d700af7d4dfc00a74da6238ac
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/45d8896e4cffffb2c6554ccbec6efe7a0d53166f
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/50c66bab321140c49aa2ed779a3ec9d2f085b458
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/bc1d694a1ffe0062c3adf0db1d64ad54454398ec
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVE Details
CVE ID
CVE-2026-90366
Published Date
Sep 17, 2026
Vendor
Linux
Severity
NONE
Exploit Prediction (EPSS)
Probability of Exploit
0.17%
Likelihood of exploitation in next 30 days
Percentile:
6.4th percentile (higher than 6.4% of all CVEs)
Standard patching cycle
Impact
Minimal impact
Source
View Advisory