mm/hugetlb: do not dissolve gigantic pages without runtime support
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.12.112, 6.18.55, 7.2.9
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: do not dissolve gigantic pages without runtime support dissolve_free_hugetlb_folio() doesn't check hstate_is_gigantic_no_runtime(h) though remove_hugetlb_folio()/ update_and_free_hugetlb_folio() silently bail for such folios, so it frees a still-listed folio and, on vmemmap restore failure, the add_hugetlb_folio() rollback corrupts the free list.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 · fixed in ddc1055b557506a6ea8930dfbd8d1555d6a3f01e; From 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 · fixed in ccf96a4b8626a001c13c5836d8357f31c57bbd8e; From 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 · fixed in 443628f755b35bf45044f68b970b65cd531c42fd; From 6eb4e88a6d27022ea8aff424d47a0a5dfc9fcb34 · fixed in a363c62a653cc8b3e21da9545fa4e028ef50f9c3
- Linux Linux
5.13
- KernelLinux
From 5.13.0 · fixed in 6.12.112; From 6.13.0 · fixed in 6.18.55; From 6.19.0 · fixed in 7.2.9