CVE-2024-36918

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-36918
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-36918.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-36918
Downstream
Related
Published
2024-05-30T15:29:13Z
Modified
2025-10-17T06:30:22.209096Z
Summary
bpf: Check bloom filter map value size
Details

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

bpf: Check bloom filter map value size

This patch adds a missing check to bloom filter creating, rejecting values above KMALLOCMAXSIZE. This brings the bloom map in line with many other map types.

The lack of this protection can cause kernel crashes for value sizes that overflow int's. Such a crash was caught by syzkaller. The next patch adds more guard-rails at a lower level.

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
9330986c03006ab1d33d243b7cfe598a7a3c1baa
Fixed
fa6995eeb62e74b5a1480c73fb7b420c270784d3
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
9330986c03006ab1d33d243b7cfe598a7a3c1baa
Fixed
608e13706c8b6c658a0646f09ebced74ec367f7c
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
9330986c03006ab1d33d243b7cfe598a7a3c1baa
Fixed
c418afb9bf23e2f2b76cb819601e4a5d9dbab42d
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
9330986c03006ab1d33d243b7cfe598a7a3c1baa
Fixed
a8d89feba7e54e691ca7c4efc2a6264fa83f3687

Affected versions

v5.*

v5.15
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
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

v6.*

v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
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
v6.1.10
v6.1.11
v6.1.12
v6.1.13
v6.1.14
v6.1.15
v6.1.16
v6.1.17
v6.1.18
v6.1.19
v6.1.2
v6.1.20
v6.1.21
v6.1.22
v6.1.23
v6.1.24
v6.1.25
v6.1.26
v6.1.27
v6.1.28
v6.1.29
v6.1.3
v6.1.30
v6.1.31
v6.1.32
v6.1.33
v6.1.34
v6.1.35
v6.1.36
v6.1.37
v6.1.38
v6.1.39
v6.1.4
v6.1.40
v6.1.41
v6.1.42
v6.1.43
v6.1.44
v6.1.45
v6.1.46
v6.1.47
v6.1.48
v6.1.49
v6.1.5
v6.1.50
v6.1.51
v6.1.52
v6.1.53
v6.1.54
v6.1.55
v6.1.56
v6.1.57
v6.1.58
v6.1.59
v6.1.6
v6.1.60
v6.1.61
v6.1.62
v6.1.63
v6.1.64
v6.1.65
v6.1.66
v6.1.67
v6.1.68
v6.1.69
v6.1.7
v6.1.70
v6.1.71
v6.1.72
v6.1.73
v6.1.74
v6.1.75
v6.1.76
v6.1.77
v6.1.78
v6.1.79
v6.1.8
v6.1.80
v6.1.81
v6.1.82
v6.1.83
v6.1.84
v6.1.85
v6.1.86
v6.1.87
v6.1.88
v6.1.89
v6.1.9
v6.1.90
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.16
v6.6.17
v6.6.18
v6.6.19
v6.6.2
v6.6.20
v6.6.21
v6.6.22
v6.6.23
v6.6.24
v6.6.25
v6.6.26
v6.6.27
v6.6.28
v6.6.29
v6.6.3
v6.6.30
v6.6.4
v6.6.5
v6.6.6
v6.6.7
v6.6.8
v6.6.9
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
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
v6.8.8
v6.8.9

Database specific

vanir_signatures

[
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        "target": {
            "file": "kernel/bpf/bloom_filter.c"
        },
        "id": "CVE-2024-36918-0d1d5bd9",
        "signature_type": "Line",
        "signature_version": "v1",
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c418afb9bf23e2f2b76cb819601e4a5d9dbab42d",
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            "threshold": 0.9
        }
    },
    {
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            "file": "tools/testing/selftests/bpf/prog_tests/bloom_filter_map.c"
        },
        "id": "CVE-2024-36918-0f987aee",
        "signature_type": "Line",
        "signature_version": "v1",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c418afb9bf23e2f2b76cb819601e4a5d9dbab42d",
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            ],
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        }
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        "signature_type": "Line",
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@fa6995eeb62e74b5a1480c73fb7b420c270784d3",
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@fa6995eeb62e74b5a1480c73fb7b420c270784d3",
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        },
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        "signature_type": "Function",
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    },
    {
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        },
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        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@608e13706c8b6c658a0646f09ebced74ec367f7c",
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    },
    {
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        },
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@608e13706c8b6c658a0646f09ebced74ec367f7c",
        "digest": {
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]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.91
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.31
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.8.10