net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()
In the Linux kernel, the following vulnerability has been resolved: net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs() sashiko is reporting that trying to read /sys/kernel/debug/ref_tracker/* causes use-afer-free crash when either alloc_percpu() or dev_addr_init() in alloc_netdev_mqs() failed, for commit 4d92b95ff2f9 ("net: add net device refcount tracker infrastructure") added ref_tracker_dir_exit() to only free_netdev() path.
CVE-2026-90135
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-2026-90135
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": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
"lessThan": "45be87c5195f34c0a51598bc91186f600be5c4c9",
"versionType": "git"
},
{
"status": "affected",
"version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
"lessThan": "2775bf36be7872834a7f8c0a0d9681a1a3e1cd4c",
"versionType": "git"
},
{
"status": "affected",
"version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
"lessThan": "5fe03b5257095e2beef0bc79e1f068fbd09a24c7",
"versionType": "git"
},
{
"status": "affected",
"version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
"lessThan": "63ab05e8f9654aa100d366c0236399fda6ffaab1",
"versionType": "git"
},
{
"status": "affected",
"version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
"lessThan": "0b1c2af8a22c35cb099c735c2f63ea3ba757557d",
"versionType": "git"
}
],
"programFiles": [
"net/core/dev.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.17"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.17",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"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": [
"net/core/dev.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90135
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48610 · Revision 1
- Added to Heist Feed
- Publisher date