CVE-2022-48658

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-48658
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48658.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-48658
Downstream
Related
Published
2024-04-28T13:01:12Z
Modified
2025-10-08T06:34:33.334779Z
Summary
mm: slub: fix flush_cpu_slab()/__free_slab() invocations in task context.
Details

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

mm: slub: fix flushcpuslab()/_freeslab() invocations in task context.

Commit 5a836bf6b09f ("mm: slub: move flushcpuslab() invocations freeslab() invocations out of IRQ context") moved all flushcpuslab() invocations to the global workqueue to avoid a problem related with deactivateslab()/freeslab() being called from an IRQ context on PREEMPTRT kernels.

When the flushallcpulocked() function is called from a task context it may happen that a workqueue with WQMEM_RECLAIM bit set ends up flushing the global workqueue, this will cause a dependency issue.

workqueue: WQMEMRECLAIM nvme-delete-wq:nvmedeletectrlwork [nvmecore] is flushing !WQMEMRECLAIM events:flushcpuslab WARNING: CPU: 37 PID: 410 at kernel/workqueue.c:2637 checkflushdependency+0x10a/0x120 Workqueue: nvme-delete-wq nvmedeletectrlwork [nvmecore] RIP: 0010:checkflushdependency+0x10a/0x120[ 453.262125] Call Trace: _flushwork.isra.0+0xbf/0x220 ? _queuework+0x1dc/0x420 flushallcpuslocked+0xfb/0x120 _kmemcacheshutdown+0x2b/0x320 kmemcachedestroy+0x49/0x100 biosetexit+0x143/0x190 blkreleasequeue+0xb9/0x100 kobjectcleanup+0x37/0x130 nvmefcctrlfree+0xc6/0x150 [nvmefc] nvmefreectrl+0x1ac/0x2b0 [nvme_core]

Fix this bug by creating a workqueue for the flush operation with the WQMEMRECLAIM bit set.

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
5a836bf6b09f99ead1b69457ff39ab3011ece57b
Fixed
61703b248be993eb4997b00ae5d3318e6d8f3c5b
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5a836bf6b09f99ead1b69457ff39ab3011ece57b
Fixed
df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5a836bf6b09f99ead1b69457ff39ab3011ece57b
Fixed
e45cc288724f0cfd497bb5920bcfa60caa335729

Affected versions

v5.*

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
v5.15.11
v5.15.12
v5.15.13
v5.15.14
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
v5.15.8
v5.15.9
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
v5.19.1
v5.19.10
v5.19.11
v5.19.2
v5.19.3
v5.19.4
v5.19.5
v5.19.6
v5.19.7
v5.19.8
v5.19.9

v6.*

v6.0-rc1
v6.0-rc2

Database specific 

{
    "vanir_signatures": [
        {
            "signature_type": "Function",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/slub.c",
                "function": "kmem_cache_init_late"
            },
            "id": "CVE-2022-48658-00204e18",
            "digest": {
                "length": 28.0,
                "function_hash": "243241260315654151173211410925035820757"
            },
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e45cc288724f0cfd497bb5920bcfa60caa335729"
        },
        {
            "signature_type": "Line",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/slub.c"
            },
            "id": "CVE-2022-48658-039c0fa6",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "250382171308800824080726518065099333706",
                    "333763053365780776552483567709413511368",
                    "170747052252694705551059237828894267341",
                    "99499583704414981458827291034119215822",
                    "178804029249720339835687356151012375199",
                    "268326903485970762318815958582025440970",
                    "146608216884342844463727609653006817472",
                    "52454041172996786681917457486076416447",
                    "71110407748499326351911455128710240440",
                    "134121158576941512602948640909564362568",
                    "184458165097729329433236209088862073825"
                ]
            },
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@61703b248be993eb4997b00ae5d3318e6d8f3c5b"
        },
        {
            "signature_type": "Function",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/slub.c",
                "function": "kmem_cache_init_late"
            },
            "id": "CVE-2022-48658-4b009df9",
            "digest": {
                "length": 28.0,
                "function_hash": "243241260315654151173211410925035820757"
            },
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@61703b248be993eb4997b00ae5d3318e6d8f3c5b"
        },
        {
            "signature_type": "Function",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/slub.c",
                "function": "flush_all_cpus_locked"
            },
            "id": "CVE-2022-48658-5a991f57",
            "digest": {
                "length": 548.0,
                "function_hash": "19966484360713691985485587976390776385"
            },
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e45cc288724f0cfd497bb5920bcfa60caa335729"
        },
        {
            "signature_type": "Line",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/slub.c"
            },
            "id": "CVE-2022-48658-7454325e",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "250382171308800824080726518065099333706",
                    "333763053365780776552483567709413511368",
                    "170747052252694705551059237828894267341",
                    "99499583704414981458827291034119215822",
                    "178804029249720339835687356151012375199",
                    "268326903485970762318815958582025440970",
                    "146608216884342844463727609653006817472",
                    "52454041172996786681917457486076416447",
                    "71110407748499326351911455128710240440",
                    "134121158576941512602948640909564362568",
                    "184458165097729329433236209088862073825"
                ]
            },
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a"
        },
        {
            "signature_type": "Line",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/slub.c"
            },
            "id": "CVE-2022-48658-b5cb4765",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "250382171308800824080726518065099333706",
                    "333763053365780776552483567709413511368",
                    "170747052252694705551059237828894267341",
                    "99499583704414981458827291034119215822",
                    "178804029249720339835687356151012375199",
                    "268326903485970762318815958582025440970",
                    "146608216884342844463727609653006817472",
                    "52454041172996786681917457486076416447",
                    "71110407748499326351911455128710240440",
                    "134121158576941512602948640909564362568",
                    "184458165097729329433236209088862073825"
                ]
            },
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e45cc288724f0cfd497bb5920bcfa60caa335729"
        },
        {
            "signature_type": "Function",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/slub.c",
                "function": "kmem_cache_init_late"
            },
            "id": "CVE-2022-48658-bc27f1ca",
            "digest": {
                "length": 28.0,
                "function_hash": "243241260315654151173211410925035820757"
            },
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a"
        },
        {
            "signature_type": "Function",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/slub.c",
                "function": "flush_all_cpus_locked"
            },
            "id": "CVE-2022-48658-bfbbe262",
            "digest": {
                "length": 548.0,
                "function_hash": "19966484360713691985485587976390776385"
            },
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@61703b248be993eb4997b00ae5d3318e6d8f3c5b"
        },
        {
            "signature_type": "Function",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "mm/slub.c",
                "function": "flush_all_cpus_locked"
            },
            "id": "CVE-2022-48658-f33854d5",
            "digest": {
                "length": 548.0,
                "function_hash": "19966484360713691985485587976390776385"
            },
            "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@df6cb39335cf5a1b918e8dbd8ba7cd9f1d00e45a"
        }
    ]
}

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.15.0
Fixed
5.15.71
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
5.19.12