CVE-2026-98373: Linux kernel · mm/hugetlb: preserve mremap address delta when skipping page tables
Source GCVE Database
Not known to be exploited · fixed in cf73ef2a761df9329af116c905a7a94b317921e4 : patch Linux kernel soon.
Data as of 30 Oct 2026, 17:19 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in cf73ef2a761df9329af116c905a7a94b317921e4, ab4f0f68cf4773dc0513baccbbe790c80a301773, 850cc4a84b36a0062dcd0391acd2450e20ab0767 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 7 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 30 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix has been implemented that corrects the address advancement logic in move_hugetlb_page_tables(). Users should apply the official kernel updates containing this fix once available.
Description
A vulnerability in the Linux kernel's huge page memory management subsystem (mm/hugetlb) was fixed. The flaw involved incorrect address advancement in the move_hugetlb_page_tables() function during mremap() operations, which could cause the destination address to be advanced too far if source and destination offsets differed. This could lead to kernel panics on affected systems. The issue has been resolved by adjusting the destination address advancement to match the source address advancement.
References
- nvd.nist.gov/vuln/detail/CVE-2026-98373 (opens in a new tab)
- git.kernel.org/stable/c/480a39b0a12c977ed6e755f3d12a23424c57d11f (opens in a new tab)
- git.kernel.org/stable/c/7a96b0f657c8d799ea5b8e02fc9ec7cca0e6e7ff (opens in a new tab)
- git.kernel.org/stable/c/850cc4a84b36a0062dcd0391acd2450e20ab0767 (opens in a new tab)
- git.kernel.org/stable/c/9bdad082d44bdcf93716973dcba6be77e8a06e7b (opens in a new tab)
- git.kernel.org/stable/c/ab4f0f68cf4773dc0513baccbbe790c80a301773 (opens in a new tab)
- git.kernel.org/stable/c/cf73ef2a761df9329af116c905a7a94b317921e4 (opens in a new tab)