CVE-2024-45022
- Source
- https://cve.org/CVERecord?id=CVE-2024-45022
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-45022.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-45022
- Downstream
- Related
- Published
- 2024-09-11T15:13:55.837Z
- Modified
- 2026-03-23T05:09:59.256728568Z
- Summary
- mm/vmalloc: fix page mapping if vm_area_alloc_pages() with high order fallback to order 0
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mm/vmalloc: fix page mapping if vmareaalloc_pages() with high order fallback to order 0
The _vmappagesrangenoflush() assumes its argument pages** contains pages with the same page shift. However, since commit e9c3cda4d86e ("mm, vmalloc: fix high order __GFPNOFAIL allocations"), if gfpflags includes __GFPNOFAIL with high order in vmareaallocpages() and page allocation failed for high order, the pages** may contain two different page shifts (high order and order-0). This could lead _vmappagesrangenoflush() to perform incorrect mappings, potentially resulting in memory corruption.
Users might encounter this as follows (vmapallowhuge = true, 2M is for PMD_SIZE):
kvmalloc(2M, __GFPNOFAIL|GFPX) __vmallocnoderangenoprof(vmflags=VMALLOWHUGEVMAP) vmareaallocpages(order=9) ---> order-9 allocation failed and fallback to order-0 vmappagesrange() vmappagesrange_noflush() __vmappagesrangenoflush(pageshift = 21) ----> wrong mapping happens
We can remove the fallback code because if a high-order allocation fails, _vmallocnoderangenoprof() will retry with order-0. Therefore, it is unnecessary to fallback to order-0 here. Therefore, fix this by removing the fallback code.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45022.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/61ebe5a747da649057c37be1c37eb934b4af79ca
- https://git.kernel.org/stable/c/c91618816f4d21fc574d7577a37722adcd4075b2
- https://git.kernel.org/stable/c/de7bad86345c43cd040ed43e20d9fad78a3ee59f
- https://git.kernel.org/stable/c/fd1ffbb50ef4da5e1378a46616b6d7407dc795da
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45022.json
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-45022
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
-
Introducedfe5c2bdcb14c8612eb5e7a09159801c7219e9ac4Fixedfd1ffbb50ef4da5e1378a46616b6d7407dc795da
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede9c3cda4d86e56bf7fe403729f38c4f0f65d3860Fixedde7bad86345c43cd040ed43e20d9fad78a3ee59fFixedc91618816f4d21fc574d7577a37722adcd4075b2Fixed61ebe5a747da649057c37be1c37eb934b4af79ca
Affected versions
v6.*
Database specific
vanir_signatures
[
{
"digest": {
"length": 1110.0,
"function_hash": "320624660319075472749325297270119544727"
},
"signature_version": "v1",
"deprecated": false,
"signature_type": "Function",
"id": "CVE-2024-45022-334e2ef9",
"target": {
"function": "vm_area_alloc_pages",
"file": "mm/vmalloc.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c91618816f4d21fc574d7577a37722adcd4075b2"
},
{
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"251324131135481406651150702848321081512",
"2187698480609136992073132016021979512",
"259828861321548123598493373985168955013",
"22700381961570513415913380283765380589",
"309725366348798655644513493799703923389",
"180991359154660650835998561896610235293",
"328304260748326550049182560183762326854",
"220702449560981777389897018197349425949",
"101968126659929370480028062396885998870",
"245742083715474412416380858513147375020"
]
},
"deprecated": false,
"signature_type": "Line",
"id": "CVE-2024-45022-af2e61e5",
"target": {
"file": "mm/vmalloc.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c91618816f4d21fc574d7577a37722adcd4075b2"
}
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-45022.json"