wifi: virt_wifi: don't transfer operstate before register
In the Linux kernel, the following vulnerability has been resolved: wifi: virt_wifi: don't transfer operstate before register virt_wifi_newlink() calls netif_stacked_transfer_operstate() before register_netdevice(). If the lower device is dormant, that queues the new netdev on lweventlist while it is still uninitialized. If registration fails after that, for example because of an invalid name such as "bad/name", free_netdev() immediately frees the object. A later linkwatch_fire_event() then use-after-frees the list entry. Move the transfer to after netdev_upper_dev_link(), as macvlan and ipvlan already do.
CVE-2026-98311
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-2026-98311
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": "c7cdba31ed8b87526db978976392802d3f93110c",
"lessThan": "ee9ea1afd6990def51d52b3a0aecd5cfcc951da0",
"versionType": "git"
},
{
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"lessThan": "9ce26201f6dedf3fa02b97da8c67ee6f6c5f7225",
"versionType": "git"
},
{
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"lessThan": "f9526054c2b2cace5916b7225603d008834ec011",
"versionType": "git"
},
{
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"lessThan": "e8304e25c6dabb8accf38b807969438d0ce84fd7",
"versionType": "git"
},
{
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"lessThan": "ca49763c42c1089d654bf11b037980a9ede3772c",
"versionType": "git"
},
{
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"lessThan": "293c56a66510bb7de073a1aba388e38abddff1fb",
"versionType": "git"
},
{
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"lessThan": "b808a9af5fd21f9c68b0d024eda7535b5dce6a4e",
"versionType": "git"
},
{
"status": "affected",
"version": "c7cdba31ed8b87526db978976392802d3f93110c",
"lessThan": "e5c8d7acd31b27057ea42cd405d0b3ece097bc89",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/virtual/virt_wifi.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/virtual/virt_wifi.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98311
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #38390 · Revision 1
- Added to Heist Feed
- Publisher date