CVE-2026-93232: Linux kernel · mm/hugetlb: fix boot panic with CONFIG_DEBUG_VM and HVO bootmem pages
Affects Linux kernelSource CVE Database V5
Not known to be exploited : upgrade to c0caeceb0c3899dc42844d3979093b27d1434108 or 2ddf429e25cf8415d9c308f07e64012026bd4d77 when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in c0caeceb0c3899dc42844d3979093b27d1434108, 2ddf429e25cf8415d9c308f07e64012026bd4d77
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Linux kernel to c0caeceb0c3899dc42844d3979093b27d1434108 or 2ddf429e25cf8415d9c308f07e64012026bd4d77.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the Linux kernel commits c0caeceb0c3899dc42844d3979093b27d1434108 and 2ddf429e25cf8415d9c308f07e64012026bd4d77. Users running kernels with CONFIG_DEBUG_VM enabled should upgrade to a fixed kernel version containing these commits. No additional mitigations are necessary once the patch is applied.
Description
CVE-2026-93232 is a Linux kernel vulnerability that causes a boot panic when CONFIG_DEBUG_VM is enabled and HugeTLB bootmem pages are used. The issue arises from improper initialization order of shared tail pages in the boot memory allocator, leading to dereferencing uninitialized memory during boot on debug kernels. The vulnerability affects Linux kernel version 7.1 and was fixed by a series of patches that reorder early memory initialization and refactor bootmem gigantic hugepage allocation.