CVE-2026-58094 (GCVE-0-2026-58094)
Vulnerability from cvelistv5
Published
2026-08-26 05:39
Modified
2026-08-27 03:57
CWE
  • CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Summary
The FIOSSHMLPGCNF ioctl(2) operation configures the page size for a largepage shared memory object. This is intended to be used immediately after creating the object, before any memory is allocated for the object. The handler checked whether a page size had already been configured without holding the rangelock. Two concurrent callers could both observe an unconfigured object and set conflicting page sizes, leaving the object in an inconsistent state. An unprivileged local user can exploit this race to escalate privileges.
Impacted products
Vendor Product Version
FreeBSD FreeBSD Version: 15.1-RELEASE
Version: 15.0-RELEASE
Version: 14.4-RELEASE
Create a notification for this product.
Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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