wifi: mt76: mt792x: Fix memory leak in SDIO TX path
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt792x: Fix memory leak in SDIO TX path When tx_prepare_skb() returns an error in the SDIO TX path, the skb is not freed, leading to a memory leak. This can occur when zero-length frames (such as WNM NULL frames) are dropped to prevent potential hardware TX hangs. Fix this by properly releasing the skb with ieee80211_tx_status_ext() when tx_prepare_skb() fails.
CVE-2026-90378
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-2026-90378
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": "b747fa343817fd322b4463dda99d28fc51e19c52",
"lessThan": "b64d196280aff8494ba6fb387e37b18479c99b83",
"versionType": "git"
},
{
"status": "affected",
"version": "b747fa343817fd322b4463dda99d28fc51e19c52",
"lessThan": "9ef1351209d42b7d96604f2a13d7ea8215a24e07",
"versionType": "git"
},
{
"status": "affected",
"version": "b747fa343817fd322b4463dda99d28fc51e19c52",
"lessThan": "c2c7f16f2c62f79f7c381e500afa7123580742a5",
"versionType": "git"
},
{
"status": "affected",
"version": "b747fa343817fd322b4463dda99d28fc51e19c52",
"lessThan": "6a8000c76dc34490a2bb321ad1a5f882a2ccab7c",
"versionType": "git"
},
{
"status": "affected",
"version": "b747fa343817fd322b4463dda99d28fc51e19c52",
"lessThan": "ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d",
"versionType": "git"
},
{
"status": "affected",
"version": "b747fa343817fd322b4463dda99d28fc51e19c52",
"lessThan": "6a342db7a6502bc6781579145e05d4d4731786ab",
"versionType": "git"
},
{
"status": "affected",
"version": "b747fa343817fd322b4463dda99d28fc51e19c52",
"lessThan": "808f2767d4217a5b96f674288573b9b89d432eed",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/sdio.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/sdio.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90378
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36704 · Revision 1
- Added to Heist Feed
- Publisher date