wifi: mt76: add wcid publish check in mt76_sta_add
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: add wcid publish check in mt76_sta_add Since mt7925_mac_sta_add publishes wcid, add publish check in mt76_sta_add to avoid reinitializing the wcid->poll_list. Found dev->sta_poll_list corruption when using mt7925 and 7.1-rc4. According to the corruption information, prev->next was changed to itself. wlan0: disconnect from AP 90:fb:5d:94:8b:e3 for new auth to 90:fb:5d:94:8b:e2 wlan0: authenticate with 90:fb:5d:94:8b:e2 (local address=84:9e:56:9c:7e:6b) wlan0: send auth to 90:fb:5d:94:8b:e2 (try 1/3) slab kmalloc-8k start ffff8c80958a6000 pointer offset 4160 size 8192 list_add corruption. prev->next should be next (ffff8c808a7488f8), but was ffff8c80958a7040. (prev=ffff8c80958a7040). mt76_wcid_add_poll+0x95/0xd0 [mt76] mt7925_mac_add_txs.part.0+0xa5/0xe0 [mt7925_common] mt7925_rx_check+0xa7/0xc0 [mt7925_common] mt76_dma_rx_poll+0x50d/0x790 [mt76] mt792x_poll_rx+0x52/0xe0 [mt792x_lib]
CVE-2026-63832
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-2026-63832
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": "c9389e3f9453ec2d710e61830eafedddfd561226",
"lessThan": "720f39a9c60fdb604291c630f4f157753b376d68",
"versionType": "git"
},
{
"status": "affected",
"version": "4911e4cb157cf87d5bdb3fa8e0c200032443371e",
"lessThan": "3c499851753a24d2e148d4e9ca51764c0c51554e",
"versionType": "git"
},
{
"status": "affected",
"version": "4911e4cb157cf87d5bdb3fa8e0c200032443371e",
"lessThan": "55e014aaec650ede08b693ba59c8d0443f13f11c",
"versionType": "git"
},
{
"status": "affected",
"version": "4911e4cb157cf87d5bdb3fa8e0c200032443371e",
"lessThan": "20b126920a259df4d7dcae19fcfe2c57a74d6b2e",
"versionType": "git"
},
{
"status": "affected",
"version": "57d3f833087942ded1a8765b1b361454d3d39e8f",
"versionType": "git"
},
{
"status": "affected",
"version": "6.12.13",
"lessThan": "6.12.114",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.13.2",
"lessThan": "6.14",
"versionType": "semver"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mac80211.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.38",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.3",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mac80211.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-63832
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46399 · Revision 1
- Added to Heist Feed
- Publisher date