CVE-2026-46093
published 2026-05-27CVE-2026-46093: 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…
high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | >= 7679ba6b36dbb300b757b672d6a32a606499e14b < 687ccdf582169cd680aeaf24cc953807c4cd4345 | 687ccdf582169cd680aeaf24cc953807c4cd4345 |
| linux | linux | >= 7679ba6b36dbb300b757b672d6a32a606499e14b < 12f2341b4c235d5593a433abac201c1c6725787f | 12f2341b4c235d5593a433abac201c1c6725787f |
| linux | linux | >= 7679ba6b36dbb300b757b672d6a32a606499e14b < ec05f51f1e65bce95528543eb73fda56fd201d94 | ec05f51f1e65bce95528543eb73fda56fd201d94 |
| linux | linux_kernel | — | — |