CVE-2022-49799
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49799
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49799.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49799
- Downstream
- Related
- Published
- 2025-05-01T14:09:28Z
- Modified
- 2025-10-21T11:25:57.278746Z
- Summary
- tracing: Fix wild-memory-access in register_synth_event()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tracing: Fix wild-memory-access in registersynthevent()
In registersynthevent(), if setsyntheventprintfmt() failed, then both traceremoveeventcall() and unregistertraceevent() will be called, which means the traceeventcall will call _unregistertraceevent() twice. As the result, the second unregister will causes the wild-memory-access.
registersynthevent setsyntheventprintfmt failed traceremoveeventcall eventremove if call->event.funcs then _unregistertraceevent (first call) unregistertraceevent _unregistertraceevent (second call)
Fix the bug by avoiding to call the second _unregistertrace_event() by checking if the first one is called.
general protection fault, probably for non-canonical address 0xfbd59c0000000024: 0000 [#1] SMP KASAN PTI KASAN: maybe wild-memory-access in range [0xdead000000000120-0xdead000000000127] CPU: 0 PID: 3807 Comm: modprobe Not tainted 6.1.0-rc1-00186-g76f33a7eedb4 #299 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014 RIP: 0010:unregistertraceevent+0x6e/0x280 Code: 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 0e 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 08 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 e2 01 00 00 49 89 2c 24 48 85 ed 74 28 e8 7a 9b RSP: 0018:ffff88810413f370 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff888105d050b0 RCX: 0000000000000000 RDX: 1bd5a00000000024 RSI: ffff888119e276e0 RDI: ffffffff835a8b20 RBP: dead000000000100 R08: 0000000000000000 R09: fffffbfff0913481 R10: ffffffff8489a407 R11: fffffbfff0913480 R12: dead000000000122 R13: ffff888105d050b8 R14: 0000000000000000 R15: ffff888105d05028 FS: 00007f7823e8d540(0000) GS:ffff888119e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7823e7ebec CR3: 000000010a058002 CR4: 0000000000330ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> _createsynthevent+0x1e37/0x1eb0 createordeletesynthevent+0x110/0x250 syntheventruncommand+0x2f/0x110 testgensynthcmd+0x170/0x2eb [syntheventgentest] syntheventgentestinit+0x76/0x9bc [syntheventgentest] dooneinitcall+0xdb/0x480 doinitmodule+0x1cf/0x680 loadmodule+0x6a50/0x70a0 _dosysfinitmodule+0x12f/0x1c0 dosyscall64+0x3f/0x90 entrySYSCALL64afterhwframe+0x63/0xcd
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1b5f1c34d3f5a664a57a5a7557a50e4e3cc2505c
- https://git.kernel.org/stable/c/315b149f08229a233d47532eb5da1707b28f764c
- https://git.kernel.org/stable/c/6517b97134f724d12f673f9fb4f456d75c7a905f
- https://git.kernel.org/stable/c/a5bfa53e5036b3e7a80be902dd3719a930accabd
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
-
Introduced4b147936fa509650beaf638b331573c23ba4d609Fixed315b149f08229a233d47532eb5da1707b28f764c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4b147936fa509650beaf638b331573c23ba4d609Fixed6517b97134f724d12f673f9fb4f456d75c7a905f
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4b147936fa509650beaf638b331573c23ba4d609Fixeda5bfa53e5036b3e7a80be902dd3719a930accabd
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4b147936fa509650beaf638b331573c23ba4d609Fixed1b5f1c34d3f5a664a57a5a7557a50e4e3cc2505c
Affected versions
v4.*
v4.16
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
v5.15.9
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
v6.1-rc4
v6.1-rc5
Database specific
vanir_signatures
[
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a5bfa53e5036b3e7a80be902dd3719a930accabd",
"id": "CVE-2022-49799-5e15e4ce",
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "kernel/trace/trace_events_synth.c"
},
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
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]
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1b5f1c34d3f5a664a57a5a7557a50e4e3cc2505c",
"id": "CVE-2022-49799-80a4eed2",
"deprecated": false,
"signature_version": "v1",
"target": {
"function": "register_synth_event",
"file": "kernel/trace/trace_events_synth.c"
},
"signature_type": "Function",
"digest": {
"length": 1091.0,
"function_hash": "2933641546190072104901712836224106192"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@1b5f1c34d3f5a664a57a5a7557a50e4e3cc2505c",
"id": "CVE-2022-49799-a19f28bc",
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "kernel/trace/trace_events_synth.c"
},
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
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"64120480492103118872437463190914085322",
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]
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@6517b97134f724d12f673f9fb4f456d75c7a905f",
"id": "CVE-2022-49799-da7bc205",
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "kernel/trace/trace_events_synth.c"
},
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
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"264484146729264766136710786686240157209",
"64120480492103118872437463190914085322",
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"284358562392686194377059549180445017142",
"283784758953443343707821132006118098217",
"84651979304024622943714442387488481458"
]
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@315b149f08229a233d47532eb5da1707b28f764c",
"id": "CVE-2022-49799-dfba78f2",
"deprecated": false,
"signature_version": "v1",
"target": {
"function": "register_synth_event",
"file": "kernel/trace/trace_events_synth.c"
},
"signature_type": "Function",
"digest": {
"length": 1091.0,
"function_hash": "2933641546190072104901712836224106192"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a5bfa53e5036b3e7a80be902dd3719a930accabd",
"id": "CVE-2022-49799-e5f1f637",
"deprecated": false,
"signature_version": "v1",
"target": {
"function": "register_synth_event",
"file": "kernel/trace/trace_events_synth.c"
},
"signature_type": "Function",
"digest": {
"length": 1091.0,
"function_hash": "2933641546190072104901712836224106192"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@6517b97134f724d12f673f9fb4f456d75c7a905f",
"id": "CVE-2022-49799-f2466926",
"deprecated": false,
"signature_version": "v1",
"target": {
"function": "register_synth_event",
"file": "kernel/trace/trace_events_synth.c"
},
"signature_type": "Function",
"digest": {
"length": 1091.0,
"function_hash": "2933641546190072104901712836224106192"
}
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@315b149f08229a233d47532eb5da1707b28f764c",
"id": "CVE-2022-49799-fc04e3ef",
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "kernel/trace/trace_events_synth.c"
},
"signature_type": "Line",
"digest": {
"threshold": 0.9,
"line_hashes": [
"51586653381666709517604657854204769333",
"264484146729264766136710786686240157209",
"64120480492103118872437463190914085322",
"251072332119862853608163332100462670442",
"284358562392686194377059549180445017142",
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"84651979304024622943714442387488481458"
]
}
}
]