Answer in brief
CVE-2026-46093 records a High severity (CVSS 7.8) vulnerability in mm/vmalloc: take vmap_purge_lock in shrinker. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). 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 7.8. 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7679ba6b36dbb300b757b672d6a32a606499e14b <c15ff206ba78820bf2873d0c668a882e99f4b631 || >=7679ba6b36dbb300b757b672d6a32a606499e14b <687ccdf582169cd680aeaf24cc953807c4cd4345 || >=7679ba6b36dbb300b757b672d6a32a606499e14b <12f2341b4c235d5593a433abac201c1c6725787f || >=7679ba6b36dbb300b757b672d6a32a606499e14b <ec05f51f1e65bce95528543eb73fda56fd201d94 | c15ff206ba78820bf2873d0c668a882e99f4b631, 687ccdf582169cd680aeaf24cc953807c4cd4345, 12f2341b4c235d5593a433abac201c1c6725787f, ec05f51f1e65bce95528543eb73fda56fd201d94 |
| Linux/Linuxgeneric | 6.9 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: take vmap_purge_lock in shrinker decay_va_pool_node() can be invoked concurrently from two paths: __purge_vmap_area_lazy() when pools are being purged, and the shrinker via vmap_node_shrink_scan(). However, decay_va_pool_node() is not safe to run concurrently, and the shrinker path currently lacks serialization, leading to races and possible leaks. Protect decay_va_pool_node() by taking vmap_purge_lock in the shrinker path to ensure serialization with purge users.
Quoted source text, attributed separately from HOL analysis.