CVE-2024-27007
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-27007
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-27007.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-27007
- Downstream
- Published
- 2024-05-01T05:29:08Z
- Modified
- 2025-10-15T09:20:10.845549Z
- Summary
- userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
userfaultfd: change srcfolio after ensuring it's unpinned in UFFDIOMOVE
Commit d7a08838ab74 ("mm: userfaultfd: fix unexpected change to srcfolio when UFFDIOMOVE 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.
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedadef440691bab824e39c1b17382322d195e1fab0Fixeddf5f6e683e7f21a15d8be6e7a0c7a46436963ebe
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedadef440691bab824e39c1b17382322d195e1fab0Fixedc0205eaf3af9f5db14d4b5ee4abacf4a583c3c50
Affected versions
v6.*
v6.7
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.8.1
v6.8.2
v6.8.3
v6.8.4
v6.8.5
v6.8.6
v6.8.7
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
Database specific
{
"vanir_signatures": [
{
"deprecated": false,
"signature_type": "Function",
"target": {
"file": "mm/huge_memory.c",
"function": "move_pages_huge_pmd"
},
"signature_version": "v1",
"digest": {
"length": 2127.0,
"function_hash": "340176901195800190894746941608185170188"
},
"id": "CVE-2024-27007-47e3acfc",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@df5f6e683e7f21a15d8be6e7a0c7a46436963ebe"
},
{
"deprecated": false,
"signature_type": "Line",
"target": {
"file": "mm/huge_memory.c"
},
"signature_version": "v1",
"digest": {
"line_hashes": [
"23759681854080917725572311687060867284",
"166109542958895183105162408500109629459",
"280005077936918461776488163942645822763",
"263791309033487465190817732216090951555",
"107713488539672584819762779661265372049",
"142993249396626294271898599460446890090",
"300975443775218608517338204467178351980",
"177334269480807726779723606399320645971"
],
"threshold": 0.9
},
"id": "CVE-2024-27007-d517e733",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@df5f6e683e7f21a15d8be6e7a0c7a46436963ebe"
}
]
}