CVE-2023-53149
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53149
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53149.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-53149
- Downstream
- Published
- 2025-09-15T14:03:13Z
- Modified
- 2025-10-14T09:49:17.828993Z
- Summary
- ext4: avoid deadlock in fs reclaim with page writeback
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ext4: avoid deadlock in fs reclaim with page writeback
Ext4 has a filesystem wide lock protecting ext4_writepages() calls to avoid races with switching of journalled data flag or inode format. This lock can however cause a deadlock like:
CPU0 CPU1
ext4writepages() percpudownread(sbi->swritepagesrwsem); ext4changeinodejournalflag() percpudownwrite(sbi->swritepagesrwsem); - blocks, all readers block from now on ext4dowritepages() ext4initioend() kmemcachezalloc(ioendcachep, GFPKERNEL) fsreclaim frees dentry... dentryunlinkinode() iput() - last ref => iputfinal() - inode dirty => writeinodenow()... ext4writepages() tries to acquire sbi->swritepagesrwsem and blocks forever
Make sure we cannot recurse into filesystem reclaim from writeback code to avoid the deadlock.
- 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
-
Introducedc8585c6fcaf2011de54c3592e80a634a2b9e1a7fFixed2ec97dc90df40c50e509809dc9a198638a7e18b6
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc8585c6fcaf2011de54c3592e80a634a2b9e1a7fFixed4b4340bf04ce9a52061f15000ecedd126abc093c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc8585c6fcaf2011de54c3592e80a634a2b9e1a7fFixed00d873c17e29cc32d90ca852b82685f1673acaa5
Affected versions
v4.*
v4.10
v4.10-rc1
v4.10-rc2
v4.10-rc3
v4.10-rc4
v4.10-rc5
v4.10-rc6
v4.10-rc7
v4.10-rc8
v4.11
v4.11-rc1
v4.11-rc2
v4.11-rc3
v4.11-rc4
v4.11-rc5
v4.11-rc6
v4.11-rc7
v4.11-rc8
v4.12
v4.12-rc1
v4.12-rc2
v4.12-rc3
v4.12-rc4
v4.12-rc5
v4.12-rc6
v4.12-rc7
v4.13
v4.13-rc1
v4.13-rc2
v4.13-rc3
v4.13-rc4
v4.13-rc5
v4.13-rc6
v4.13-rc7
v4.14
v4.14-rc1
v4.14-rc2
v4.14-rc3
v4.14-rc4
v4.14-rc5
v4.14-rc6
v4.14-rc7
v4.14-rc8
v4.15
v4.15-rc1
v4.15-rc2
v4.15-rc3
v4.15-rc4
v4.15-rc5
v4.15-rc6
v4.15-rc7
v4.15-rc8
v4.15-rc9
v4.16
v4.16-rc1
v4.16-rc2
v4.16-rc3
v4.16-rc4
v4.16-rc5
v4.16-rc6
v4.16-rc7
v4.17
v4.17-rc1
v4.17-rc2
v4.17-rc3
v4.17-rc4
v4.17-rc5
v4.17-rc6
v4.17-rc7
v4.18
v4.18-rc1
v4.18-rc2
v4.18-rc3
v4.18-rc4
v4.18-rc5
v4.18-rc6
v4.18-rc7
v4.18-rc8
v4.19
v4.19-rc1
v4.19-rc2
v4.19-rc3
v4.19-rc4
v4.19-rc5
v4.19-rc6
v4.19-rc7
v4.19-rc8
v4.20
v4.20-rc1
v4.20-rc2
v4.20-rc3
v4.20-rc4
v4.20-rc5
v4.20-rc6
v4.20-rc7
v4.6
v4.6-rc5
v4.6-rc6
v4.6-rc7
v4.7
v4.7-rc1
v4.7-rc2
v4.7-rc3
v4.7-rc4
v4.7-rc5
v4.7-rc6
v4.7-rc7
v4.8
v4.8-rc1
v4.8-rc2
v4.8-rc3
v4.8-rc4
v4.8-rc5
v4.8-rc6
v4.8-rc7
v4.8-rc8
v4.9
v4.9-rc1
v4.9-rc2
v4.9-rc3
v4.9-rc4
v4.9-rc5
v4.9-rc6
v4.9-rc7
v4.9-rc8
v5.*
v5.0
v5.0-rc1
v5.0-rc2
v5.0-rc3
v5.0-rc4
v5.0-rc5
v5.0-rc6
v5.0-rc7
v5.0-rc8
v5.1
v5.1-rc1
v5.1-rc2
v5.1-rc3
v5.1-rc4
v5.1-rc5
v5.1-rc6
v5.1-rc7
v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
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
v5.16
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
v5.2
v5.2-rc1
v5.2-rc2
v5.2-rc3
v5.2-rc4
v5.2-rc5
v5.2-rc6
v5.2-rc7
v5.3
v5.3-rc1
v5.3-rc2
v5.3-rc3
v5.3-rc4
v5.3-rc5
v5.3-rc6
v5.3-rc7
v5.3-rc8
v5.4
v5.4-rc1
v5.4-rc2
v5.4-rc3
v5.4-rc4
v5.4-rc5
v5.4-rc6
v5.4-rc7
v5.4-rc8
v5.5
v5.5-rc1
v5.5-rc2
v5.5-rc3
v5.5-rc4
v5.5-rc5
v5.5-rc6
v5.5-rc7
v5.6
v5.6-rc1
v5.6-rc2
v5.6-rc3
v5.6-rc4
v5.6-rc5
v5.6-rc6
v5.6-rc7
v5.7
v5.7-rc1
v5.7-rc2
v5.7-rc3
v5.7-rc4
v5.7-rc5
v5.7-rc6
v5.7-rc7
v5.8
v5.8-rc1
v5.8-rc2
v5.8-rc3
v5.8-rc4
v5.8-rc5
v5.8-rc6
v5.8-rc7
v5.9
v5.9-rc1
v5.9-rc2
v5.9-rc3
v5.9-rc4
v5.9-rc5
v5.9-rc6
v5.9-rc7
v5.9-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
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.2.1
v6.2.10
v6.2.11
v6.2.12
v6.2.13
v6.2.14
v6.2.15
v6.2.2
v6.2.3
v6.2.4
v6.2.5
v6.2.6
v6.2.7
v6.2.8
v6.2.9
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.3.1
v6.3.2
v6.4-rc1
Database specific
{
"vanir_signatures": [
{
"id": "CVE-2023-53149-06b9d4be",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4b4340bf04ce9a52061f15000ecedd126abc093c",
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},
"target": {
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}
},
{
"id": "CVE-2023-53149-142265ee",
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},
"target": {
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}
},
{
"id": "CVE-2023-53149-25a6acb7",
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"target": {
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}
},
{
"id": "CVE-2023-53149-39644eb9",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2ec97dc90df40c50e509809dc9a198638a7e18b6",
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},
"target": {
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"function": "ext4_ind_migrate"
}
},
{
"id": "CVE-2023-53149-3b5626eb",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2ec97dc90df40c50e509809dc9a198638a7e18b6",
"deprecated": false,
"signature_version": "v1",
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"digest": {
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},
"target": {
"file": "fs/ext4/inode.c",
"function": "ext4_writepages"
}
},
{
"id": "CVE-2023-53149-4715eda2",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2ec97dc90df40c50e509809dc9a198638a7e18b6",
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},
"target": {
"file": "fs/ext4/inode.c"
}
},
{
"id": "CVE-2023-53149-48b93b56",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2ec97dc90df40c50e509809dc9a198638a7e18b6",
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},
"target": {
"file": "fs/ext4/migrate.c"
}
},
{
"id": "CVE-2023-53149-499c558d",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4b4340bf04ce9a52061f15000ecedd126abc093c",
"deprecated": false,
"signature_version": "v1",
"signature_type": "Function",
"digest": {
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"function_hash": "301941218346817680785453133780271076750"
},
"target": {
"file": "fs/ext4/inode.c",
"function": "ext4_change_inode_journal_flag"
}
},
{
"id": "CVE-2023-53149-4b84d20f",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4b4340bf04ce9a52061f15000ecedd126abc093c",
"deprecated": false,
"signature_version": "v1",
"signature_type": "Function",
"digest": {
"length": 1626.0,
"function_hash": "64699543426298460910125416143385017927"
},
"target": {
"file": "fs/ext4/migrate.c",
"function": "ext4_ind_migrate"
}
},
{
"id": "CVE-2023-53149-570380bf",
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