CVE-2024-26601

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-26601
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26601.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-26601
Downstream
Related
Published
2024-02-24T14:56:56Z
Modified
2025-10-14T13:17:58.923963Z
Summary
ext4: regenerate buddy after block freeing failed if under fc replay
Details

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

ext4: regenerate buddy after block freeing failed if under fc replay

This mostly reverts commit 6bd97bf273bd ("ext4: remove redundant mbregeneratebuddy()") and reintroduces mbregeneratebuddy(). Based on code in mbfreeblocks(), fast commit replay can end up marking as free blocks that are already marked as such. This causes corruption of the buddy bitmap so we need to regenerate it in that case.

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
0983142c5f17a62055ec851372273c3bc77e4788
Fixed
94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51a
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6bd97bf273bdb4944904e57480f6545bca48ad77
Fixed
c1317822e2de80e78f137d3a2d99febab1b80326
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6bd97bf273bdb4944904e57480f6545bca48ad77
Fixed
78327acd4cdc4a1601af718b781eece577b6b7d4
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6bd97bf273bdb4944904e57480f6545bca48ad77
Fixed
ea42d6cffb0dd27a417f410b9d0011e9859328cb
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6bd97bf273bdb4944904e57480f6545bca48ad77
Fixed
6b0d48647935e4b8c7b75d1eccb9043fcd4ee581
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6bd97bf273bdb4944904e57480f6545bca48ad77
Fixed
c9b528c35795b711331ed36dc3dbee90d5812d4e

Affected versions

v5.*

v5.10
v5.10-rc6
v5.10-rc7
v5.10.181
v5.10.182
v5.10.183
v5.10.184
v5.10.185
v5.10.186
v5.10.187
v5.10.188
v5.10.189
v5.10.190
v5.10.191
v5.10.192
v5.10.193
v5.10.194
v5.10.195
v5.10.196
v5.10.197
v5.10.198
v5.10.199
v5.10.200
v5.10.201
v5.10.202
v5.10.203
v5.10.204
v5.10.205
v5.10.206
v5.10.207
v5.10.208
v5.10.209
v5.10.210
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
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
v5.15.100
v5.15.101
v5.15.102
v5.15.103
v5.15.104
v5.15.105
v5.15.106
v5.15.107
v5.15.108
v5.15.109
v5.15.11
v5.15.110
v5.15.111
v5.15.112
v5.15.113
v5.15.114
v5.15.115
v5.15.116
v5.15.117
v5.15.118
v5.15.119
v5.15.12
v5.15.120
v5.15.121
v5.15.122
v5.15.123
v5.15.124
v5.15.125
v5.15.126
v5.15.127
v5.15.128
v5.15.129
v5.15.13
v5.15.130
v5.15.131
v5.15.132
v5.15.133
v5.15.134
v5.15.135
v5.15.136
v5.15.137
v5.15.138
v5.15.139
v5.15.14
v5.15.140
v5.15.141
v5.15.142
v5.15.143
v5.15.144
v5.15.145
v5.15.146
v5.15.147
v5.15.148
v5.15.149
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
v5.15.68
v5.15.69
v5.15.7
v5.15.70
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
v5.15.77
v5.15.78
v5.15.79
v5.15.8
v5.15.80
v5.15.81
v5.15.82
v5.15.83
v5.15.84
v5.15.85
v5.15.86
v5.15.87
v5.15.88
v5.15.89
v5.15.9
v5.15.90
v5.15.91
v5.15.92
v5.15.93
v5.15.94
v5.15.95
v5.15.96
v5.15.97
v5.15.98
v5.15.99
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
v6.1.8
v6.1.9
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
v6.6.2
v6.6.3
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
v6.7.1
v6.7.2
v6.7.3
v6.7.4

Database specific 

{
    "vanir_signatures": [
        {
            "id": "CVE-2024-26601-0a88f557",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ea42d6cffb0dd27a417f410b9d0011e9859328cb",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Line",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "77286060216228727161734845911241489088",
                    "55739539341984965239517255918633367858",
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                    "108876866468054580121643159767213061485",
                    "312440376043654300253721016049088369849",
                    "130503683373559113083330114833808038731",
                    "109328240837857036573021275063396567433"
                ]
            },
            "target": {
                "file": "fs/ext4/mballoc.c"
            }
        },
        {
            "id": "CVE-2024-26601-5630290a",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c9b528c35795b711331ed36dc3dbee90d5812d4e",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Function",
            "digest": {
                "length": 1779.0,
                "function_hash": "203599500295809321338089879492091572129"
            },
            "target": {
                "file": "fs/ext4/mballoc.c",
                "function": "mb_free_blocks"
            }
        },
        {
            "id": "CVE-2024-26601-602b01ff",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ea42d6cffb0dd27a417f410b9d0011e9859328cb",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Function",
            "digest": {
                "length": 1779.0,
                "function_hash": "203599500295809321338089879492091572129"
            },
            "target": {
                "file": "fs/ext4/mballoc.c",
                "function": "mb_free_blocks"
            }
        },
        {
            "id": "CVE-2024-26601-8cb7fb29",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@78327acd4cdc4a1601af718b781eece577b6b7d4",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Line",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
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                    "55739539341984965239517255918633367858",
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                    "108876866468054580121643159767213061485",
                    "312440376043654300253721016049088369849",
                    "130503683373559113083330114833808038731",
                    "109328240837857036573021275063396567433"
                ]
            },
            "target": {
                "file": "fs/ext4/mballoc.c"
            }
        },
        {
            "id": "CVE-2024-26601-8f8ce3c6",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@78327acd4cdc4a1601af718b781eece577b6b7d4",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Function",
            "digest": {
                "length": 1779.0,
                "function_hash": "203599500295809321338089879492091572129"
            },
            "target": {
                "file": "fs/ext4/mballoc.c",
                "function": "mb_free_blocks"
            }
        },
        {
            "id": "CVE-2024-26601-a27f4277",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c1317822e2de80e78f137d3a2d99febab1b80326",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Function",
            "digest": {
                "length": 1779.0,
                "function_hash": "203599500295809321338089879492091572129"
            },
            "target": {
                "file": "fs/ext4/mballoc.c",
                "function": "mb_free_blocks"
            }
        },
        {
            "id": "CVE-2024-26601-ae7cde63",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c9b528c35795b711331ed36dc3dbee90d5812d4e",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Line",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
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                    "55739539341984965239517255918633367858",
                    "278291937343997763327075617721802496436",
                    "108876866468054580121643159767213061485",
                    "312440376043654300253721016049088369849",
                    "130503683373559113083330114833808038731",
                    "109328240837857036573021275063396567433"
                ]
            },
            "target": {
                "file": "fs/ext4/mballoc.c"
            }
        },
        {
            "id": "CVE-2024-26601-b47d8aba",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c1317822e2de80e78f137d3a2d99febab1b80326",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Line",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "188331951013924201487388161328719965818",
                    "66580908528226906455958412140460691325",
                    "278291937343997763327075617721802496436",
                    "108876866468054580121643159767213061485",
                    "312440376043654300253721016049088369849",
                    "130503683373559113083330114833808038731",
                    "109328240837857036573021275063396567433"
                ]
            },
            "target": {
                "file": "fs/ext4/mballoc.c"
            }
        },
        {
            "id": "CVE-2024-26601-bee8939b",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51a",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Function",
            "digest": {
                "length": 1741.0,
                "function_hash": "10556435667035020149908368744713266883"
            },
            "target": {
                "file": "fs/ext4/mballoc.c",
                "function": "mb_free_blocks"
            }
        },
        {
            "id": "CVE-2024-26601-e0238c56",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@6b0d48647935e4b8c7b75d1eccb9043fcd4ee581",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Line",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "77286060216228727161734845911241489088",
                    "55739539341984965239517255918633367858",
                    "278291937343997763327075617721802496436",
                    "108876866468054580121643159767213061485",
                    "312440376043654300253721016049088369849",
                    "130503683373559113083330114833808038731",
                    "109328240837857036573021275063396567433"
                ]
            },
            "target": {
                "file": "fs/ext4/mballoc.c"
            }
        },
        {
            "id": "CVE-2024-26601-f05141f5",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51a",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Line",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "77286060216228727161734845911241489088",
                    "55739539341984965239517255918633367858",
                    "278291937343997763327075617721802496436",
                    "108876866468054580121643159767213061485",
                    "312440376043654300253721016049088369849",
                    "130503683373559113083330114833808038731",
                    "109328240837857036573021275063396567433"
                ]
            },
            "target": {
                "file": "fs/ext4/mballoc.c"
            }
        },
        {
            "id": "CVE-2024-26601-f9d8d2d6",
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@6b0d48647935e4b8c7b75d1eccb9043fcd4ee581",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Function",
            "digest": {
                "length": 1779.0,
                "function_hash": "203599500295809321338089879492091572129"
            },
            "target": {
                "file": "fs/ext4/mballoc.c",
                "function": "mb_free_blocks"
            }
        }
    ]
}

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.211
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.150
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
6.1.78
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.6.17
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.7.5