CVE-2022-49795

Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49795
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49795.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-49795
Downstream
Related
Published
2025-05-01T14:09:25Z
Modified
2025-10-14T23:56:04.124403Z
Summary
rethook: fix a potential memleak in rethook_alloc()
Details

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

rethook: fix a potential memleak in rethook_alloc()

In rethook_alloc(), the variable rh is not freed or passed out if handler is NULL, which could lead to a memleak, fix it.

[Masami: Add "rethook:" tag to the title.]

Acke-by: Masami Hiramatsu (Google) mhiramat@kernel.org

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
54ecbe6f1ed5138c895bdff55608cf502755b20e
Fixed
cbc5d1f9a8cc40ba2bc6779b36d2ea1f65bc027c
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
54ecbe6f1ed5138c895bdff55608cf502755b20e
Fixed
0a1ebe35cb3b7aa1f4b26b37e2a0b9ae68dc4ffb

Affected versions

v5.*

v5.17
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
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.0.9
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5

Database specific

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            "digest": {
                "threshold": 0.9,
                "line_hashes": [
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                ]
            },
            "signature_version": "v1",
            "deprecated": false,
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cbc5d1f9a8cc40ba2bc6779b36d2ea1f65bc027c",
            "target": {
                "file": "kernel/trace/rethook.c"
            },
            "id": "CVE-2022-49795-45b04112",
            "signature_type": "Line"
        },
        {
            "digest": {
                "length": 268.0,
                "function_hash": "217485805093707353256773826322469770099"
            },
            "signature_version": "v1",
            "deprecated": false,
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0a1ebe35cb3b7aa1f4b26b37e2a0b9ae68dc4ffb",
            "target": {
                "file": "kernel/trace/rethook.c",
                "function": "rethook_alloc"
            },
            "id": "CVE-2022-49795-65fd8932",
            "signature_type": "Function"
        },
        {
            "digest": {
                "length": 268.0,
                "function_hash": "217485805093707353256773826322469770099"
            },
            "signature_version": "v1",
            "deprecated": false,
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cbc5d1f9a8cc40ba2bc6779b36d2ea1f65bc027c",
            "target": {
                "file": "kernel/trace/rethook.c",
                "function": "rethook_alloc"
            },
            "id": "CVE-2022-49795-6bd5ffa6",
            "signature_type": "Function"
        },
        {
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
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            },
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            "target": {
                "file": "kernel/trace/rethook.c"
            },
            "id": "CVE-2022-49795-6d3358f6",
            "signature_type": "Line"
        }
    ]
}

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.18.0
Fixed
6.0.10