wifi: ath9k: reject short WMI command responses
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: reject short WMI command responses ath9k_wmi_rsp_callback() removes the validated WMI header and copies the number of bytes expected by the waiting command into its response buffer. A device response shorter than that expectation can therefore be read beyond the skb payload. Record -EMSGSIZE for a short response, complete the waiter, and return the stored status from the command path. This also prevents callers from consuming stale response bytes as a successful reply.
CVE-2026-98828
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98828
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "fb9987d0f748c983bb795a86f47522313f701a08",
"lessThan": "03ef61d05aa26022327f971b790f07e6bf6e35d6",
"versionType": "git"
},
{
"status": "affected",
"version": "fb9987d0f748c983bb795a86f47522313f701a08",
"lessThan": "e0c21130c1c7791ba73b19a3a9ea767c8cd43745",
"versionType": "git"
},
{
"status": "affected",
"version": "fb9987d0f748c983bb795a86f47522313f701a08",
"lessThan": "a3b0137c855a61371d9cf9993b8bcc33c9798202",
"versionType": "git"
},
{
"status": "affected",
"version": "fb9987d0f748c983bb795a86f47522313f701a08",
"lessThan": "93ce8ea70451e800601bc9444aa33043de15d67b",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/ath/ath9k/wmi.c",
"drivers/net/wireless/ath/ath9k/wmi.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.35"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.35",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/ath/ath9k/wmi.c",
"drivers/net/wireless/ath/ath9k/wmi.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98828
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38742 · Revision 1
- Added to Heist Feed
- Publisher date