CVE-2022-50391
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-50391
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50391.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-50391
- Downstream
- Related
- Published
- 2025-09-18T13:33:10Z
- Modified
- 2025-10-14T18:28:27.875916Z
- Summary
- mm/mempolicy: fix memory leak in set_mempolicy_home_node system call
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mm/mempolicy: fix memory leak in setmempolicyhome_node system call
When encountering any vma in the range with policy other than MPOLBIND or MPOLPREFERREDMANY, an error is returned without issuing a mpolput on the policy just allocated with mpol_dup().
This allows arbitrary users to leak kernel memory.
- 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
-
Introducedc6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0Fixed4ca0eb6b2f3add8c5daefb726ce57dc95d103d33
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0Fixed0ce4cc6d269ddc448a825955b495f662f5d9e153
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0Fixed38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76
Affected versions
v5.*
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.0.1
v6.0.10
v6.0.11
v6.0.12
v6.0.13
v6.0.14
v6.0.15
v6.0.16
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.0.9
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.2
Database specific
{
"vanir_signatures": [
{
"deprecated": false,
"signature_type": "Function",
"target": {
"file": "mm/mempolicy.c",
"function": "SYSCALL_DEFINE4"
},
"signature_version": "v1",
"digest": {
"length": 1162.0,
"function_hash": "161196312206971867612450849472863779543"
},
"id": "CVE-2022-50391-186670f7",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4ca0eb6b2f3add8c5daefb726ce57dc95d103d33"
},
{
"deprecated": false,
"signature_type": "Function",
"target": {
"file": "mm/mempolicy.c",
"function": "SYSCALL_DEFINE4"
},
"signature_version": "v1",
"digest": {
"length": 1120.0,
"function_hash": "109979892599940213936209867045044100674"
},
"id": "CVE-2022-50391-2384f6d3",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0ce4cc6d269ddc448a825955b495f662f5d9e153"
},
{
"deprecated": false,
"signature_type": "Line",
"target": {
"file": "mm/mempolicy.c"
},
"signature_version": "v1",
"digest": {
"line_hashes": [
"111201215960665695774032149593468031233",
"61298621715229381405017303547034806492",
"132430502059530489021592664873062295562",
"338384273565592470318402342581124578438"
],
"threshold": 0.9
},
"id": "CVE-2022-50391-6ad3a85c",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0ce4cc6d269ddc448a825955b495f662f5d9e153"
},
{
"deprecated": false,
"signature_type": "Function",
"target": {
"file": "mm/mempolicy.c",
"function": "SYSCALL_DEFINE4"
},
"signature_version": "v1",
"digest": {
"length": 1120.0,
"function_hash": "109979892599940213936209867045044100674"
},
"id": "CVE-2022-50391-bd1ea6c6",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76"
},
{
"deprecated": false,
"signature_type": "Line",
"target": {
"file": "mm/mempolicy.c"
},
"signature_version": "v1",
"digest": {
"line_hashes": [
"111201215960665695774032149593468031233",
"61298621715229381405017303547034806492",
"132430502059530489021592664873062295562",
"338384273565592470318402342581124578438"
],
"threshold": 0.9
},
"id": "CVE-2022-50391-d469a1b2",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76"
},
{
"deprecated": false,
"signature_type": "Line",
"target": {
"file": "mm/mempolicy.c"
},
"signature_version": "v1",
"digest": {
"line_hashes": [
"111201215960665695774032149593468031233",
"61298621715229381405017303547034806492",
"132430502059530489021592664873062295562",
"338384273565592470318402342581124578438"
],
"threshold": 0.9
},
"id": "CVE-2022-50391-efa3c684",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4ca0eb6b2f3add8c5daefb726ce57dc95d103d33"
}
]
}