GHSA-M57G-35WP-4XGR
Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-24 18:31In the Linux kernel, the following vulnerability has been resolved:
netconsole: take target_cleanup_list_lock in drop_netconsole_target()
drop_netconsole_target() unlinks the target while only holding target_list_lock. However, when the underlying interface has been unregistered, netconsole_netdev_event() moves the target from target_list to target_cleanup_list, and netconsole_process_cleanups_core() walks that list under target_cleanup_list_lock only.
If a user removes the configfs target at the same time the cleanup worker is iterating target_cleanup_list, list_del() can corrupt the list because the two paths take disjoint locks while operating on the same list node.
Acquire target_cleanup_list_lock around the list_del() so the unlink is serialised against netconsole_process_cleanups_core() regardless of which list the target currently belongs to. The state transition that downgrades STATE_DEACTIVATED to STATE_DISABLED is left intact and is performed under the same combined locking, preserving the existing ordering with resume_target().
{
"affected": [],
"aliases": [
"CVE-2026-97410"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-24T17:17:18Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetconsole: take target_cleanup_list_lock in drop_netconsole_target()\n\ndrop_netconsole_target() unlinks the target while only holding\ntarget_list_lock. However, when the underlying interface has been\nunregistered, netconsole_netdev_event() moves the target from\ntarget_list to target_cleanup_list, and netconsole_process_cleanups_core()\nwalks that list under target_cleanup_list_lock only.\n\nIf a user removes the configfs target at the same time the cleanup\nworker is iterating target_cleanup_list, list_del() can corrupt the list\nbecause the two paths take disjoint locks while operating on the same\nlist node.\n\nAcquire target_cleanup_list_lock around the list_del() so the unlink is\nserialised against netconsole_process_cleanups_core() regardless of\nwhich list the target currently belongs to. The state transition that\ndowngrades STATE_DEACTIVATED to STATE_DISABLED is left intact and is\nperformed under the same combined locking, preserving the existing\nordering with resume_target().",
"id": "GHSA-m57g-35wp-4xgr",
"modified": "2026-09-24T18:31:31Z",
"published": "2026-09-24T18:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97410"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/84592ee22f7d1583ce33aa733411ff36c7a1c44c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/91aeb87f052367a5a2743cc93777dfb4386f2f14"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fe8e6c0a2f28bdab14cdf7eff4dd9755d3793007"
}
],
"schema_version": "1.4.0",
"severity": []
}
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