CVE-2022-49838
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49838
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49838.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49838
- Downstream
- Published
- 2025-05-01T14:09:54Z
- Modified
- 2025-10-21T11:39:17.032499Z
- Summary
- sctp: clear out_curr if all frag chunks of current msg are pruned
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
sctp: clear out_curr if all frag chunks of current msg are pruned
A crash was reported by Zhen Chen:
listdel corruption, ffffa035ddf01c18->next is NULL WARNING: CPU: 1 PID: 250682 at lib/listdebug.c:49 listdelentryvalid+0x59/0xe0 RIP: 0010:listdelentryvalid+0x59/0xe0 Call Trace: sctpscheddequeuecommon+0x17/0x70 [sctp] sctpschedfcfsdequeue+0x37/0x50 [sctp] sctpoutqflushdata+0x85/0x360 [sctp] sctpoutquncork+0x77/0xa0 [sctp] sctpcmdinterpreter.constprop.0+0x164/0x1450 [sctp] sctpsideeffects+0x37/0xe0 [sctp] sctpdosm+0xd0/0x230 [sctp] sctpprimitiveSEND+0x2f/0x40 [sctp] sctpsendmsgtoasoc+0x3fa/0x5c0 [sctp] sctpsendmsg+0x3d5/0x440 [sctp] socksendmsg+0x5b/0x70
and in sctpschedfcfsdequeue() it dequeued a chunk from stream outcurr outq while this outq was empty.
Normally stream->outcurr must be set to NULL once all frag chunks of current msg are dequeued, as we can see in sctpscheddequeuedone(). However, in sctpprsctppruneunsent() as it is not a proper dequeue, sctpscheddequeuedone() is not called to do this.
This patch is to fix it by simply setting outcurr to NULL when the last frag chunk of current msg is dequeued from outcurr stream in sctpprsctpprune_unsent().
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/2ea600b598dd3e061854dd4dd5b4c815397dfcea
- https://git.kernel.org/stable/c/2f201ae14ae0f91dbf1cffea7bb1e29e81d4d108
- https://git.kernel.org/stable/c/3eff34e01062ec08fbb45ce2baaaa644550be821
- https://git.kernel.org/stable/c/e27458b18b35caee4b27b37a4a9c503b93cae5cc
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
-
Introduced5bbbbe32a43199c2b9ea5ea66fab6241c64beb51Fixede27458b18b35caee4b27b37a4a9c503b93cae5cc
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5bbbbe32a43199c2b9ea5ea66fab6241c64beb51Fixed2ea600b598dd3e061854dd4dd5b4c815397dfcea
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5bbbbe32a43199c2b9ea5ea66fab6241c64beb51Fixed3eff34e01062ec08fbb45ce2baaaa644550be821
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5bbbbe32a43199c2b9ea5ea66fab6241c64beb51Fixed2f201ae14ae0f91dbf1cffea7bb1e29e81d4d108
Affected versions
v4.*
v4.14
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
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
v5.10.1
v5.10.10
v5.10.100
v5.10.101
v5.10.102
v5.10.103
v5.10.104
v5.10.105
v5.10.106
v5.10.107
v5.10.108
v5.10.109
v5.10.11
v5.10.110
v5.10.111
v5.10.112
v5.10.113
v5.10.114
v5.10.115
v5.10.116
v5.10.117
v5.10.118
v5.10.119
v5.10.12
v5.10.120
v5.10.121
v5.10.122
v5.10.123
v5.10.124
v5.10.125
v5.10.126
v5.10.127
v5.10.128
v5.10.129
v5.10.13
v5.10.130
v5.10.131
v5.10.132
v5.10.133
v5.10.134
v5.10.135
v5.10.136
v5.10.137
v5.10.138
v5.10.139
v5.10.14
v5.10.140
v5.10.141
v5.10.142
v5.10.143
v5.10.144
v5.10.145
v5.10.146
v5.10.147
v5.10.148
v5.10.149
v5.10.15
v5.10.150
v5.10.151
v5.10.152
v5.10.153
v5.10.154
v5.10.155
v5.10.16
v5.10.17
v5.10.18
v5.10.19
v5.10.2
v5.10.20
v5.10.21
v5.10.22
v5.10.23
v5.10.24
v5.10.25
v5.10.26
v5.10.27
v5.10.28
v5.10.29
v5.10.3
v5.10.30
v5.10.31
v5.10.32
v5.10.33
v5.10.34
v5.10.35
v5.10.36
v5.10.37
v5.10.38
v5.10.39
v5.10.4
v5.10.40
v5.10.41
v5.10.42
v5.10.43
v5.10.44
v5.10.45
v5.10.46
v5.10.47
v5.10.48
v5.10.49
v5.10.5
v5.10.50
v5.10.51
v5.10.52
v5.10.53
v5.10.54
v5.10.55
v5.10.56
v5.10.57
v5.10.58
v5.10.59
v5.10.6
v5.10.60
v5.10.61
v5.10.62
v5.10.63
v5.10.64
v5.10.65
v5.10.66
v5.10.67
v5.10.68
v5.10.69
v5.10.7
v5.10.70
v5.10.71
v5.10.72
v5.10.73
v5.10.74
v5.10.75
v5.10.76
v5.10.77
v5.10.78
v5.10.79
v5.10.8
v5.10.80
v5.10.81
v5.10.82
v5.10.83
v5.10.84
v5.10.85
v5.10.86
v5.10.87
v5.10.88
v5.10.89
v5.10.9
v5.10.90
v5.10.91
v5.10.92
v5.10.93
v5.10.94
v5.10.95
v5.10.96
v5.10.97
v5.10.98
v5.10.99
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
v5.15.1
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
v5.15.78
v5.15.79
v5.15.8
v5.15.80
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
v5.2
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
v6.0.1
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
Database specific
vanir_signatures
[
{
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"12761128207622460266762095833531421330",
"256197337893121577472476968737133888492",
"22051431272501181568512427198448224094"
]
},
"target": {
"file": "net/sctp/outqueue.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2f201ae14ae0f91dbf1cffea7bb1e29e81d4d108",
"id": "CVE-2022-49838-0ea24cee",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"12761128207622460266762095833531421330",
"256197337893121577472476968737133888492",
"22051431272501181568512427198448224094"
]
},
"target": {
"file": "net/sctp/outqueue.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3eff34e01062ec08fbb45ce2baaaa644550be821",
"id": "CVE-2022-49838-1c06d929",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "39954314347396138791613692553180346786",
"length": 919.0
},
"target": {
"file": "net/sctp/outqueue.c",
"function": "sctp_prsctp_prune_unsent"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e27458b18b35caee4b27b37a4a9c503b93cae5cc",
"id": "CVE-2022-49838-383fa652",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "39954314347396138791613692553180346786",
"length": 919.0
},
"target": {
"file": "net/sctp/outqueue.c",
"function": "sctp_prsctp_prune_unsent"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2f201ae14ae0f91dbf1cffea7bb1e29e81d4d108",
"id": "CVE-2022-49838-3eb4bf78",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"12761128207622460266762095833531421330",
"256197337893121577472476968737133888492",
"22051431272501181568512427198448224094"
]
},
"target": {
"file": "net/sctp/outqueue.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e27458b18b35caee4b27b37a4a9c503b93cae5cc",
"id": "CVE-2022-49838-849b6a4a",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "39954314347396138791613692553180346786",
"length": 919.0
},
"target": {
"file": "net/sctp/outqueue.c",
"function": "sctp_prsctp_prune_unsent"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2ea600b598dd3e061854dd4dd5b4c815397dfcea",
"id": "CVE-2022-49838-885a6318",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"12761128207622460266762095833531421330",
"256197337893121577472476968737133888492",
"22051431272501181568512427198448224094"
]
},
"target": {
"file": "net/sctp/outqueue.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@2ea600b598dd3e061854dd4dd5b4c815397dfcea",
"id": "CVE-2022-49838-9aed2cce",
"deprecated": false,
"signature_version": "v1"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "39954314347396138791613692553180346786",
"length": 919.0
},
"target": {
"file": "net/sctp/outqueue.c",
"function": "sctp_prsctp_prune_unsent"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3eff34e01062ec08fbb45ce2baaaa644550be821",
"id": "CVE-2022-49838-adb81737",
"deprecated": false,
"signature_version": "v1"
}
]