Answer in brief
CVE-2026-89972 records a Critical severity (CVSS 9.8) vulnerability in nvme: add missing SRCU grace period in error path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <0d4735418512ef825176726eaaa8bd6a35f6b46d || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <d663944dbad81bb0e3635d7090db4713e6300858 || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <76023560d60f10b4f808941163aa2975f1631683 || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <ef248d5de4469fb6bbaf8dbe0c4c47800080d648 | 0d4735418512ef825176726eaaa8bd6a35f6b46d, d663944dbad81bb0e3635d7090db4713e6300858, 76023560d60f10b4f808941163aa2975f1631683, ef248d5de4469fb6bbaf8dbe0c4c47800080d648 |
| Linux/Linuxgeneric | 4.15 | Not reported |
| Linux/Linuxgeneric | >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <d663944dbad81bb0e3635d7090db4713e6300858 || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <76023560d60f10b4f808941163aa2975f1631683 || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <ef248d5de4469fb6bbaf8dbe0c4c47800080d648 | d663944dbad81bb0e3635d7090db4713e6300858, 76023560d60f10b4f808941163aa2975f1631683, ef248d5de4469fb6bbaf8dbe0c4c47800080d648 |
| Linux/Linuxgeneric | >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <3868476cd39161f18720582df17a1b621e805b5d || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <0d4735418512ef825176726eaaa8bd6a35f6b46d || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <d663944dbad81bb0e3635d7090db4713e6300858 || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <76023560d60f10b4f808941163aa2975f1631683 || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <ef248d5de4469fb6bbaf8dbe0c4c47800080d648 | 3868476cd39161f18720582df17a1b621e805b5d, 0d4735418512ef825176726eaaa8bd6a35f6b46d, d663944dbad81bb0e3635d7090db4713e6300858, 76023560d60f10b4f808941163aa2975f1631683, ef248d5de4469fb6bbaf8dbe0c4c47800080d648 |
| Linux/Linuxgeneric | >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <037e71058e8a59568db72015d4386f54e54dff77 || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <7f180cef9f3421ece85c43bfdc326ce5875845bb || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <da710ec2a70a85de73afd4f7869b234fd9ede49e || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <3868476cd39161f18720582df17a1b621e805b5d || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <0d4735418512ef825176726eaaa8bd6a35f6b46d || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <d663944dbad81bb0e3635d7090db4713e6300858 || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <76023560d60f10b4f808941163aa2975f1631683 || >=ed754e5deeb17f4e675c84e4b6c640cc7344e498 <ef248d5de4469fb6bbaf8dbe0c4c47800080d648 | 037e71058e8a59568db72015d4386f54e54dff77, 7f180cef9f3421ece85c43bfdc326ce5875845bb, da710ec2a70a85de73afd4f7869b234fd9ede49e, 3868476cd39161f18720582df17a1b621e805b5d, 0d4735418512ef825176726eaaa8bd6a35f6b46d, d663944dbad81bb0e3635d7090db4713e6300858, 76023560d60f10b4f808941163aa2975f1631683, ef248d5de4469fb6bbaf8dbe0c4c47800080d648 |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
In the Linux kernel, the following vulnerability has been resolved: nvme: add missing SRCU grace period in error path nvme_alloc_ns() error path at out_unlink_ns removes ns from the namespace head siblings list with list_del_rcu(&ns->siblings) but does not wait for SRCU readers before freeing the namespace struct. Multipath code iterates the head->list under srcu_read_lock() in nvme_find_path() and nvme_mpath_revalidate_paths(), so a concurrent reader can still hold a reference to ns when kfree(ns) runs. The normal removal path in nvme_ns_remove() correctly calls synchronize_srcu(&ns->head->srcu) after list_del_rcu() to wait for in-progress readers. Add the same grace period in the error path.
Quoted source text, attributed separately from HOL analysis.