CVE-2022-49815
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49815
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49815.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49815
- Downstream
- Published
- 2025-05-01T14:09:39Z
- Modified
- 2025-10-08T11:15:59.762695Z
- Summary
- erofs: fix missing xas_retry() in fscache mode
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
erofs: fix missing xas_retry() in fscache mode
The xarray iteration only holds the RCU read lock and thus may encounter XARETRYENTRY if there's process modifying the xarray concurrently. This will cause oops when referring to the invalid entry.
Fix this by adding the missing xasretry(), which will make the iteration wind back to the root node if XARETRY_ENTRY is encountered.
- 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
-
Introducedd435d53228dd039fffecae123b8c138af6f96f99Fixeddbc98fe99e17ed18f2f272d5fe880d844b1c68c3
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd435d53228dd039fffecae123b8c138af6f96f99Fixed37020bbb71d911431e16c2c940b97cf86ae4f2f6
Affected versions
v5.*
v5.18
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
v6.0.1
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.0.9
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
Database specific
{
"vanir_signatures": [
{
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
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"127946933739298722291129786994761145583",
"114353526860974379556992587014794631355",
"307806711971364734609601816831702833196",
"186659782890191041575137493199793193889",
"55217904426352896351492941418217551418"
]
},
"id": "CVE-2022-49815-42532743",
"deprecated": false,
"target": {
"file": "fs/erofs/fscache.c"
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@37020bbb71d911431e16c2c940b97cf86ae4f2f6"
},
{
"signature_version": "v1",
"digest": {
"length": 954.0,
"function_hash": "299379219211324010275987837860050104285"
},
"id": "CVE-2022-49815-987ee6ac",
"deprecated": false,
"target": {
"file": "fs/erofs/fscache.c",
"function": "erofs_fscache_rreq_unlock_folios"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@37020bbb71d911431e16c2c940b97cf86ae4f2f6"
},
{
"signature_version": "v1",
"digest": {
"length": 954.0,
"function_hash": "299379219211324010275987837860050104285"
},
"id": "CVE-2022-49815-d04a4214",
"deprecated": false,
"target": {
"file": "fs/erofs/fscache.c",
"function": "erofs_fscache_rreq_unlock_folios"
},
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@dbc98fe99e17ed18f2f272d5fe880d844b1c68c3"
},
{
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
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]
},
"id": "CVE-2022-49815-ef174720",
"deprecated": false,
"target": {
"file": "fs/erofs/fscache.c"
},
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@dbc98fe99e17ed18f2f272d5fe880d844b1c68c3"
}
]
}