CVE-2022-49920
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49920
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49920.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49920
- Downstream
- Published
- 2025-05-01T14:10:59Z
- Modified
- 2025-10-21T11:31:38.608265Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- netfilter: nf_tables: netlink notifier might race to release objects
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: netlink notifier might race to release objects
commit release path is invoked via call_rcu and it runs lockless to release the objects after rcu grace period. The netlink notifier handler might win race to remove objects that the transaction context is still referencing from the commit release path.
Call rcu_barrier() to ensure pending rcu callbacks run to completion if the list of transactions to be destroyed is not empty.
- 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
-
Introduced6001a930ce0378b62210d4f83583fc88a903d89dFixed1ffe7100411a8b9015115ce124cd6c9c9da6f8e3
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6001a930ce0378b62210d4f83583fc88a903d89dFixede40b7c44d19e327ad8b49a491ef1fa8dcc4566e0
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6001a930ce0378b62210d4f83583fc88a903d89dFixedd4bc8271db21ea9f1c86a1ca4d64999f184d4aae
Affected versions
v5.*
v5.11
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
v5.15.1
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
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
v5.15.77
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
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
v6.1-rc1
v6.1-rc2
Database specific
vanir_signatures
[
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d4bc8271db21ea9f1c86a1ca4d64999f184d4aae",
"target": {
"file": "net/netfilter/nf_tables_api.c"
},
"deprecated": false,
"signature_version": "v1",
"id": "CVE-2022-49920-256fe7b6",
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"181324321168371203470874627712559526004",
"141538512132322913264116058608590206598",
"317277738634966699689906583879954563331",
"103009350784016244450383012512072890880"
]
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1ffe7100411a8b9015115ce124cd6c9c9da6f8e3",
"target": {
"file": "net/netfilter/nf_tables_api.c"
},
"deprecated": false,
"signature_version": "v1",
"id": "CVE-2022-49920-562e9d27",
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"181324321168371203470874627712559526004",
"141538512132322913264116058608590206598",
"317277738634966699689906583879954563331",
"103009350784016244450383012512072890880"
]
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0",
"target": {
"function": "nft_rcv_nl_event",
"file": "net/netfilter/nf_tables_api.c"
},
"deprecated": false,
"signature_version": "v1",
"id": "CVE-2022-49920-907963b5",
"signature_type": "Function",
"digest": {
"length": 816.0,
"function_hash": "294021141377525557448142410894794812727"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1ffe7100411a8b9015115ce124cd6c9c9da6f8e3",
"target": {
"function": "nft_rcv_nl_event",
"file": "net/netfilter/nf_tables_api.c"
},
"deprecated": false,
"signature_version": "v1",
"id": "CVE-2022-49920-c315e303",
"signature_type": "Function",
"digest": {
"length": 816.0,
"function_hash": "294021141377525557448142410894794812727"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d4bc8271db21ea9f1c86a1ca4d64999f184d4aae",
"target": {
"function": "nft_rcv_nl_event",
"file": "net/netfilter/nf_tables_api.c"
},
"deprecated": false,
"signature_version": "v1",
"id": "CVE-2022-49920-e9a9dd2f",
"signature_type": "Function",
"digest": {
"length": 816.0,
"function_hash": "294021141377525557448142410894794812727"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0",
"target": {
"file": "net/netfilter/nf_tables_api.c"
},
"deprecated": false,
"signature_version": "v1",
"id": "CVE-2022-49920-fd122982",
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"181324321168371203470874627712559526004",
"141538512132322913264116058608590206598",
"317277738634966699689906583879954563331",
"103009350784016244450383012512072890880"
]
}
}
]