CVE-2024-53166

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-53166
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53166.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-53166
Downstream
Related
Published
2024-12-27T13:49:12Z
Modified
2025-10-17T17:47:48.119703Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
block, bfq: fix bfqq uaf in bfq_limit_depth()
Details

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

block, bfq: fix bfqq uaf in bfqlimitdepth()

Set new allocated bfqq to bic or remove freed bfqq from bic are both protected by bfqd->lock, however bfqlimitdepth() is deferencing bfqq from bic without the lock, this can lead to UAF if the io_context is shared by multiple tasks.

For example, test bfq with io_uring can trigger following UAF in v6.6:

================================================================== BUG: KASAN: slab-use-after-free in bfqq_group+0x15/0x50

Call Trace: <TASK> dumpstacklvl+0x47/0x80 printaddressdescription.constprop.0+0x66/0x300 printreport+0x3e/0x70 kasanreport+0xb4/0xf0 bfqqgroup+0x15/0x50 bfqqrequestoverlimit+0x130/0x9a0 bfqlimitdepth+0x1b5/0x480 _blkmqallocrequests+0x2b5/0xa00 blkmqgetnewrequests+0x11d/0x1d0 blkmqsubmitbio+0x286/0xb00 submitbionoacctnocheck+0x331/0x400 _blockwritefullfolio+0x3d0/0x640 writepagecb+0x3b/0xc0 writecachepages+0x254/0x6c0 writecachepages+0x254/0x6c0 dowritepages+0x192/0x310 filemapfdatawritewbc+0x95/0xc0 _filemapfdatawriterange+0x99/0xd0 filemapwriteandwaitrange.part.0+0x4d/0xa0 blkdevreaditer+0xef/0x1e0 ioread+0x1b6/0x8a0 ioissuesqe+0x87/0x300 iowqsubmitwork+0xeb/0x390 ioworkerhandlework+0x24d/0x550 iowqworker+0x27f/0x6c0 retfromfork_asm+0x1b/0x30 </TASK>

Allocated by task 808602: kasansavestack+0x1e/0x40 kasansettrack+0x21/0x30 _kasanslaballoc+0x83/0x90 kmemcacheallocnode+0x1b1/0x6d0 bfqgetqueue+0x138/0xfa0 bfqgetbfqqhandlesplit+0xe3/0x2c0 bfqinitrq+0x196/0xbb0 bfqinsertrequest.isra.0+0xb5/0x480 bfqinsertrequests+0x156/0x180 blkmqinsertrequest+0x15d/0x440 blkmqsubmitbio+0x8a4/0xb00 submitbionoacctnocheck+0x331/0x400 _blkdevdirectIOasync+0x2dd/0x330 blkdevwriteiter+0x39a/0x450 iowrite+0x22a/0x840 ioissuesqe+0x87/0x300 iowqsubmitwork+0xeb/0x390 ioworkerhandlework+0x24d/0x550 iowqworker+0x27f/0x6c0 retfromfork+0x2d/0x50 retfromfork_asm+0x1b/0x30

Freed by task 808589: kasansavestack+0x1e/0x40 kasansettrack+0x21/0x30 kasansavefreeinfo+0x27/0x40 _kasanslabfree+0x126/0x1b0 kmemcachefree+0x10c/0x750 bfqputqueue+0x2dd/0x770 _bfqinsertrequest.isra.0+0x155/0x7a0 bfqinsertrequest.isra.0+0x122/0x480 bfqinsertrequests+0x156/0x180 blkmqdispatchpluglist+0x528/0x7e0 blkmqflushpluglist.part.0+0xe5/0x590 _blkflushplug+0x3b/0x90 blkfinishplug+0x40/0x60 dowritepages+0x19d/0x310 filemapfdatawritewbc+0x95/0xc0 _filemapfdatawriterange+0x99/0xd0 filemapwriteandwaitrange.part.0+0x4d/0xa0 blkdevreaditer+0xef/0x1e0 ioread+0x1b6/0x8a0 ioissuesqe+0x87/0x300 iowqsubmitwork+0xeb/0x390 ioworkerhandlework+0x24d/0x550 iowqworker+0x27f/0x6c0 retfromfork+0x2d/0x50 retfromforkasm+0x1b/0x30

Fix the problem by protecting bictobfqq() with bfqd->lock.

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
76f1df88bbc2f984eb0418cc90de0a8384e63604
Fixed
ada4ca5fd5a9d5212f28164d49a4885951c979c9
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
76f1df88bbc2f984eb0418cc90de0a8384e63604
Fixed
906cdbdd3b018ff69cc830173bce277a847d4fdc
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
76f1df88bbc2f984eb0418cc90de0a8384e63604
Fixed
dcaa738afde55085ac6056252e319479cf23cde2
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
76f1df88bbc2f984eb0418cc90de0a8384e63604
Fixed
01a853faaeaf3379ccf358ade582b1d28752126e
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
76f1df88bbc2f984eb0418cc90de0a8384e63604
Fixed
e8b8344de3980709080d86c157d24e7de07d70ad

Affected versions

v5.*

v5.16
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
v6.1.100
v6.1.101
v6.1.102
v6.1.103
v6.1.104
v6.1.105
v6.1.106
v6.1.107
v6.1.108
v6.1.109
v6.1.11
v6.1.110
v6.1.111
v6.1.112
v6.1.113
v6.1.114
v6.1.115
v6.1.116
v6.1.117
v6.1.118
v6.1.119
v6.1.12
v6.1.120
v6.1.121
v6.1.122
v6.1.123
v6.1.124
v6.1.125
v6.1.126
v6.1.127
v6.1.128
v6.1.129
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
v6.1.91
v6.1.92
v6.1.93
v6.1.94
v6.1.95
v6.1.96
v6.1.97
v6.1.98
v6.1.99
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
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
v6.11.10
v6.11.2
v6.11.3
v6.11.4
v6.11.5
v6.11.6
v6.11.7
v6.11.8
v6.11.9
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
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
v6.6.31
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
v6.6.54
v6.6.55
v6.6.56
v6.6.57
v6.6.58
v6.6.59
v6.6.6
v6.6.60
v6.6.61
v6.6.62
v6.6.63
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

[
    {
        "digest": {
            "length": 72.0,
            "function_hash": "33274676690557014236160525529778209973"
        },
        "target": {
            "function": "bfqq_request_over_limit",
            "file": "block/bfq-iosched.c"
        },
        "signature_type": "Function",
        "deprecated": false,
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@906cdbdd3b018ff69cc830173bce277a847d4fdc",
        "id": "CVE-2024-53166-07a87e14"
    },
    {
        "digest": {
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e8b8344de3980709080d86c157d24e7de07d70ad",
        "id": "CVE-2024-53166-2095e63e"
    },
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                "231823921583961401672833861517966317297"
            ]
        },
        "target": {
            "file": "block/bfq-iosched.c"
        },
        "signature_type": "Line",
        "deprecated": false,
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ada4ca5fd5a9d5212f28164d49a4885951c979c9",
        "id": "CVE-2024-53166-3a41446b"
    },
    {
        "digest": {
            "length": 781.0,
            "function_hash": "162189108018452180516458713097068844316"
        },
        "target": {
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        },
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    },
    {
        "digest": {
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        },
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        },
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        "id": "CVE-2024-53166-625a1a94"
    },
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        "digest": {
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        },
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        },
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        "id": "CVE-2024-53166-6830de11"
    },
    {
        "digest": {
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                "216106634216588420319240189056731427584",
                "58164855105838586367516097264006399872",
                "304653411831489304201658913663626523644",
                "182851935746149654375200561093326966372",
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                "47868250479704598889277253125910286717",
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                "109124045047846459229368498556152651146",
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                "285218170652143975551295133512853744723",
                "231823921583961401672833861517966317297"
            ]
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]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.17.0
Fixed
6.1.130
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.64
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.11.11
Type
ECOSYSTEM
Events
Introduced
6.12.0
Fixed
6.12.2