Products
Linux kernel
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Tags
CVE-2024-27007 details
Published : May 1, 2024, 6:15 a.m.
Last Modified : May 1, 2024, 1:02 p.m.
Last Modified : May 1, 2024, 1:02 p.m.
Description
In the Linux kernel, the following vulnerability has been resolved: userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE Commit d7a08838ab74 ("mm: userfaultfd: fix unexpected change to src_folio when UFFDIO_MOVE fails") moved the src_folio->{mapping, index} changing to after clearing the page-table and ensuring that it's not pinned. This avoids failure of swapout+migration and possibly memory corruption. However, the commit missed fixing it in the huge-page case.
CVSS Score
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
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Weakness
| Weakness | Name | Description |
|---|
References
| URL | Source |
|---|---|
| https://git.kernel.org/stable/c/c0205eaf3af9f5db14d4b5ee4abacf4a583c3c50 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
| https://git.kernel.org/stable/c/df5f6e683e7f21a15d8be6e7a0c7a46436963ebe | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
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