CVE-2026-93802

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Source
https://cve.org/CVERecord?id=CVE-2026-93802
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93802.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-93802
Downstream
Published
2026-09-24T16:02:36Z
Modified
2026-10-05T02:30:39Z
Summary
wifi: rsi: validate beacon length before fixed buffer copy
Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: rsi: validate beacon length before fixed buffer copy

rsi_prepare_beacon() copies the mac80211 beacon frame after FRAME_DESC_SZ into a management skb whose usable tailroom may be smaller than MAX_MGMT_PKT_SIZE after alignment.

Validate the beacon length against the actual tailroom before the copy and skb_put(). Leave ownership of the management skb with the caller on error, matching the existing rsi_send_beacon() cleanup path.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93802.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d26a9559403c7c3ec3b430f5825bc22c3d40abdb
Fixed
795ba65f46fe44061f1195951c122cc8ec685d44
Fixed
66a964432b2758a4cf69962366e37581d6e70632
Fixed
7f99742c3c2801f8033d8b7a0a58254d7f24fb1e
Fixed
f08d7f3c916335a0e539f1c45c130615967fac47
Fixed
87710ad633ce4588aec88611d0d0745eb33a6991
Fixed
266f195d5a14eec6c482fd09fbc924584c3371a7
Fixed
8ecdeb8b8a33b22c597299043c0dcfce50beb9ea

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93802.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.14.0
Fixed
5.10.271
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.222
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.189
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.158
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.111
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.53

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93802.json"