CVE-2024-47700

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-47700
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-47700.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-47700
Downstream
Related
Published
2024-10-21T11:53:36.611Z
Modified
2025-11-20T06:37:03.938343Z
Summary
ext4: check stripe size compatibility on remount as well
Details

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

ext4: check stripe size compatibility on remount as well

We disable stripe size in _ext4fillsuper if it is not a multiple of the cluster ratio however this check is missed when trying to remount. This can leave us with cases where stripe < clusterratio after remount:set making EXT4B2C(sbi->sstripe) become 0 that can cause some unforeseen bugs like divide by 0.

Fix that by adding the check in remount path as well.

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
c3defd99d58cbdd132bd197714e5523dac976b66
Fixed
faeff8b1ee2eaa5969c8e994d66c3337298cefed
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c3defd99d58cbdd132bd197714e5523dac976b66
Fixed
297615e992bbb30a55c158141086be6505d5d722
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c3defd99d58cbdd132bd197714e5523dac976b66
Fixed
a31b712f75445d52fc0451dc54fd7b16a552cb7c
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c3defd99d58cbdd132bd197714e5523dac976b66
Fixed
ee85e0938aa8f9846d21e4d302c3cf6a2a75110d

Affected versions

v6.*

v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.10.1
v6.10.10
v6.10.11
v6.10.12
v6.10.2
v6.10.3
v6.10.4
v6.10.5
v6.10.6
v6.10.7
v6.10.8
v6.10.9
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.11.1
v6.4
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
v6.6.31
v6.6.32
v6.6.33
v6.6.34
v6.6.35
v6.6.36
v6.6.37
v6.6.38
v6.6.39
v6.6.4
v6.6.40
v6.6.41
v6.6.42
v6.6.43
v6.6.44
v6.6.45
v6.6.46
v6.6.47
v6.6.48
v6.6.49
v6.6.5
v6.6.50
v6.6.51
v6.6.52
v6.6.53
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
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7

Database specific

vanir_signatures

[
    {
        "deprecated": false,
        "target": {
            "file": "fs/ext4/super.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "253834528595312805688404537236432996582",
                "50858719059904737269499459467177892348",
                "18304087698261664284749254852867056032",
                "118926737975342731127903066939195626078",
                "209173787726902893689601335856914622435",
                "249883764396854911379456956034659160773",
                "157490747602032428568498592113458105910",
                "274268784882422603840349694094440871227",
                "313387498425327868403024122076636591353",
                "245320897564149208121561119088673083979",
                "16987215788210180049478713690146607647"
            ]
        },
        "id": "CVE-2024-47700-452125c2",
        "signature_type": "Line",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@faeff8b1ee2eaa5969c8e994d66c3337298cefed",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "target": {
            "file": "fs/ext4/super.c",
            "function": "__ext4_fill_super"
        },
        "digest": {
            "length": 10502.0,
            "function_hash": "51401999312173497037478002411760191936"
        },
        "id": "CVE-2024-47700-4b02d498",
        "signature_type": "Function",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@faeff8b1ee2eaa5969c8e994d66c3337298cefed",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "target": {
            "file": "fs/ext4/super.c",
            "function": "__ext4_remount"
        },
        "digest": {
            "length": 6555.0,
            "function_hash": "191439332651088007216452894674176239349"
        },
        "id": "CVE-2024-47700-5c57a103",
        "signature_type": "Function",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@297615e992bbb30a55c158141086be6505d5d722",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "target": {
            "file": "fs/ext4/super.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "253834528595312805688404537236432996582",
                "50858719059904737269499459467177892348",
                "18304087698261664284749254852867056032",
                "118926737975342731127903066939195626078",
                "209173787726902893689601335856914622435",
                "249883764396854911379456956034659160773",
                "157490747602032428568498592113458105910",
                "274268784882422603840349694094440871227",
                "313387498425327868403024122076636591353",
                "245320897564149208121561119088673083979",
                "16987215788210180049478713690146607647"
            ]
        },
        "id": "CVE-2024-47700-791d2842",
        "signature_type": "Line",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@297615e992bbb30a55c158141086be6505d5d722",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "target": {
            "file": "fs/ext4/super.c",
            "function": "__ext4_fill_super"
        },
        "digest": {
            "length": 10578.0,
            "function_hash": "142674024771267884901441857203422532189"
        },
        "id": "CVE-2024-47700-7a1fe059",
        "signature_type": "Function",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ee85e0938aa8f9846d21e4d302c3cf6a2a75110d",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "target": {
            "file": "fs/ext4/super.c",
            "function": "__ext4_remount"
        },
        "digest": {
            "length": 6555.0,
            "function_hash": "191439332651088007216452894674176239349"
        },
        "id": "CVE-2024-47700-92b7a644",
        "signature_type": "Function",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@faeff8b1ee2eaa5969c8e994d66c3337298cefed",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "target": {
            "file": "fs/ext4/super.c",
            "function": "__ext4_fill_super"
        },
        "digest": {
            "length": 10541.0,
            "function_hash": "92040925712339398597479704685412436813"
        },
        "id": "CVE-2024-47700-aa5c09fd",
        "signature_type": "Function",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@297615e992bbb30a55c158141086be6505d5d722",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "target": {
            "file": "fs/ext4/super.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "253834528595312805688404537236432996582",
                "50858719059904737269499459467177892348",
                "18304087698261664284749254852867056032",
                "118926737975342731127903066939195626078",
                "209173787726902893689601335856914622435",
                "249883764396854911379456956034659160773",
                "157490747602032428568498592113458105910",
                "274268784882422603840349694094440871227",
                "313387498425327868403024122076636591353",
                "245320897564149208121561119088673083979",
                "16987215788210180049478713690146607647"
            ]
        },
        "id": "CVE-2024-47700-ddfcb22f",
        "signature_type": "Line",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ee85e0938aa8f9846d21e4d302c3cf6a2a75110d",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "target": {
            "file": "fs/ext4/super.c",
            "function": "__ext4_remount"
        },
        "digest": {
            "length": 6555.0,
            "function_hash": "191439332651088007216452894674176239349"
        },
        "id": "CVE-2024-47700-f285a8a5",
        "signature_type": "Function",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ee85e0938aa8f9846d21e4d302c3cf6a2a75110d",
        "signature_version": "v1"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.5.0
Fixed
6.6.54
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.10.13
Type
ECOSYSTEM
Events
Introduced
6.11.0
Fixed
6.11.2