CVE-2026-93172
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
mm/mm_init: handle alloc_percpu failure in free_area_init_core_hotplug
In the Linux kernel, the following vulnerability has been resolved: mm/mm_init: handle alloc_percpu failure in free_area_init_core_hotplug We miss a failed allocation check for pgdat->per_cpu_nodestats, which results in a NULL deref when we offset into the per-cpu area. Propagate -ENOMEM up the stack and leave per_cpu_nodestats pointing at boot_nodestats so a later online can retry the allocation. hotadd_init_pgdat() returns NULL on failure, which __try_online_node() already maps to -ENOMEM. On failure nothing needs to be unwound: - the node is never marked online - per_cpu_nodestats is left pointing at boot_nodestats - __add_memory_resource() cleans up pending memblock resources - later online attempts retry the per_cpu_nodestats allocation
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 75ef7184053989118d3814c558a9af62e7376a58 | affected | git | 4dda09e7ca0bf0c3fa7c5c8f134d9804b67f455c | Unavailable | None listed |
| 75ef7184053989118d3814c558a9af62e7376a58 | affected | git | 4cc5caef9a8d1894dfa31d84a0daa0ac1437dadc | Unavailable | None listed |
| 75ef7184053989118d3814c558a9af62e7376a58 | affected | git | bc3b5e6519b8df22d622a03eab6772784da97db4 | Unavailable | None listed |
| 75ef7184053989118d3814c558a9af62e7376a58 | affected | git | 1017fe1c7f48e511c5a680e3057005daaff2f3a2 | Unavailable | None listed |
| 75ef7184053989118d3814c558a9af62e7376a58 | affected | git | 2ebce860bdd7ae5e13002811bc9bbbf33fcfc221 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.8 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.52 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |