CVE-2022-48699

Source
https://nvd.nist.gov/vuln/detail/CVE-2022-48699
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48699.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-48699
Downstream
Related
Published
2024-05-03T15:11:54Z
Modified
2025-10-08T06:16:58.050023Z
Summary
sched/debug: fix dentry leak in update_sched_domain_debugfs
Details

In the Linux kernel, the following vulnerability has been resolved:

sched/debug: fix dentry leak in updatescheddomain_debugfs

Kuyo reports that the pattern of using debugfsremove(debugfslookup()) leaks a dentry and with a hotplug stress test, the machine eventually runs out of memory.

Fix this up by using the newly created debugfslookupand_remove() call instead which properly handles the dentry reference counting logic.

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
Introduced
3b87f136f8fccddf7da016ab7d04bb3cf9b180f0
Fixed
26e9a1ded8923510e5529fbb28390b22228700c2
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3b87f136f8fccddf7da016ab7d04bb3cf9b180f0
Fixed
0c32a93963e03c03e561d5a066eedad211880ba3
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3b87f136f8fccddf7da016ab7d04bb3cf9b180f0
Fixed
c2e406596571659451f4b95e37ddfd5a8ef1d0dc

Affected versions

v5.*

v5.12
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.15.1
v5.15.10
v5.15.11
v5.15.12
v5.15.13
v5.15.14
v5.15.15
v5.15.16
v5.15.17
v5.15.18
v5.15.19
v5.15.2
v5.15.20
v5.15.21
v5.15.22
v5.15.23
v5.15.24
v5.15.25
v5.15.26
v5.15.27
v5.15.28
v5.15.29
v5.15.3
v5.15.30
v5.15.31
v5.15.32
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.4
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.5
v5.15.50
v5.15.51
v5.15.52
v5.15.53
v5.15.54
v5.15.55
v5.15.56
v5.15.57
v5.15.58
v5.15.59
v5.15.6
v5.15.60
v5.15.61
v5.15.62
v5.15.63
v5.15.64
v5.15.65
v5.15.66
v5.15.67
v5.15.7
v5.15.8
v5.15.9
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
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
v5.19.1
v5.19.2
v5.19.3
v5.19.4
v5.19.5
v5.19.6
v5.19.7
v5.19.8

v6.*

v6.0-rc1
v6.0-rc2

Database specific

{
    "vanir_signatures": [
        {
            "digest": {
                "line_hashes": [
                    "335682554519038736777805701924133760336",
                    "218003420231430538189937597886040161107",
                    "178672094163537652111454269795082152830",
                    "244770854602130643603617068023913217466"
                ],
                "threshold": 0.9
            },
            "signature_type": "Line",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@26e9a1ded8923510e5529fbb28390b22228700c2",
            "target": {
                "file": "kernel/sched/debug.c"
            },
            "id": "CVE-2022-48699-20543b9f",
            "deprecated": false,
            "signature_version": "v1"
        },
        {
            "digest": {
                "line_hashes": [
                    "335682554519038736777805701924133760336",
                    "218003420231430538189937597886040161107",
                    "178672094163537652111454269795082152830",
                    "244770854602130643603617068023913217466"
                ],
                "threshold": 0.9
            },
            "signature_type": "Line",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0c32a93963e03c03e561d5a066eedad211880ba3",
            "target": {
                "file": "kernel/sched/debug.c"
            },
            "id": "CVE-2022-48699-28c48a66",
            "deprecated": false,
            "signature_version": "v1"
        },
        {
            "digest": {
                "line_hashes": [
                    "335682554519038736777805701924133760336",
                    "218003420231430538189937597886040161107",
                    "178672094163537652111454269795082152830",
                    "244770854602130643603617068023913217466"
                ],
                "threshold": 0.9
            },
            "signature_type": "Line",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c2e406596571659451f4b95e37ddfd5a8ef1d0dc",
            "target": {
                "file": "kernel/sched/debug.c"
            },
            "id": "CVE-2022-48699-2a54935e",
            "deprecated": false,
            "signature_version": "v1"
        },
        {
            "digest": {
                "function_hash": "180332699981170611208714434687332266618",
                "length": 738.0
            },
            "signature_type": "Function",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0c32a93963e03c03e561d5a066eedad211880ba3",
            "target": {
                "file": "kernel/sched/debug.c",
                "function": "update_sched_domain_debugfs"
            },
            "id": "CVE-2022-48699-3615ff7f",
            "deprecated": false,
            "signature_version": "v1"
        },
        {
            "digest": {
                "function_hash": "180332699981170611208714434687332266618",
                "length": 738.0
            },
            "signature_type": "Function",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@26e9a1ded8923510e5529fbb28390b22228700c2",
            "target": {
                "file": "kernel/sched/debug.c",
                "function": "update_sched_domain_debugfs"
            },
            "id": "CVE-2022-48699-4d4b1617",
            "deprecated": false,
            "signature_version": "v1"
        },
        {
            "digest": {
                "function_hash": "180332699981170611208714434687332266618",
                "length": 738.0
            },
            "signature_type": "Function",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c2e406596571659451f4b95e37ddfd5a8ef1d0dc",
            "target": {
                "file": "kernel/sched/debug.c",
                "function": "update_sched_domain_debugfs"
            },
            "id": "CVE-2022-48699-653a0237",
            "deprecated": false,
            "signature_version": "v1"
        }
    ]
}

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.13.0
Fixed
5.15.68
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
5.19.9