CVE-2025-39857
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-39857
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39857.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-39857
- Downstream
- Related
- Published
- 2025-09-19T15:26:28Z
- Modified
- 2025-11-04T03:08:53.386229Z
- Summary
- net/smc: fix one NULL pointer dereference in smc_ib_is_sg_need_sync()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net/smc: fix one NULL pointer dereference in smcibissgneed_sync()
BUG: kernel NULL pointer dereference, address: 00000000000002ec PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP PTI CPU: 28 UID: 0 PID: 343 Comm: kworker/28:1 Kdump: loaded Tainted: G OE 6.17.0-rc2+ #9 NONE Tainted: [O]=OOTMODULE, [E]=UNSIGNEDMODULE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 Workqueue: smchswq smclistenwork [smc] RIP: 0010:smcibissgneedsync+0x9e/0xd0 [smc] ... Call Trace: <TASK> smcrbufmaplink+0x211/0x2a0 [smc] _smcbufcreate+0x522/0x970 [smc] smcbufcreate+0x3a/0x110 [smc] smcfindrdmav2deviceserv+0x18f/0x240 [smc] ? smcvlanbytcpsk+0x7e/0xe0 [smc] smclistenfinddevice+0x1dd/0x2b0 [smc] smclistenwork+0x30f/0x580 [smc] processonework+0x18c/0x340 workerthread+0x242/0x360 kthread+0xe7/0x220 retfromfork+0x13a/0x160 retfromforkasm+0x1a/0x30 </TASK>
If the software RoCE device is used, ibdev->dma_device is a null pointer. As a result, the problem occurs. Null pointer detection is added to prevent problems.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0cdf1fd8fc59d44a48c694324611136910301ef9
- https://git.kernel.org/stable/c/34f17cbe027050b8d5316ea1b6f9bd7c378e92de
- https://git.kernel.org/stable/c/ba1e9421cf1a8369d25c3832439702a015d6b5f9
- https://git.kernel.org/stable/c/eb929910bd4b4165920fa06a87b22cc6cae92e0e
- https://git.kernel.org/stable/c/f18d9b3abf9c6587372cc702f963a7592277ed56
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
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
-
Introduced0ef69e788411cba2af017db731a9fc62d255e9acFixed0cdf1fd8fc59d44a48c694324611136910301ef9
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0ef69e788411cba2af017db731a9fc62d255e9acFixedf18d9b3abf9c6587372cc702f963a7592277ed56
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0ef69e788411cba2af017db731a9fc62d255e9acFixedeb929910bd4b4165920fa06a87b22cc6cae92e0e
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0ef69e788411cba2af017db731a9fc62d255e9acFixed34f17cbe027050b8d5316ea1b6f9bd7c378e92de
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0ef69e788411cba2af017db731a9fc62d255e9acFixedba1e9421cf1a8369d25c3832439702a015d6b5f9
Affected versions
v5.*
v5.19
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
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.10
v6.1.100
v6.1.101
v6.1.102
v6.1.103
v6.1.104
v6.1.105
v6.1.106
v6.1.107
v6.1.108
v6.1.109
v6.1.11
v6.1.110
v6.1.111
v6.1.112
v6.1.113
v6.1.114
v6.1.115
v6.1.116
v6.1.117
v6.1.118
v6.1.119
v6.1.12
v6.1.120
v6.1.121
v6.1.122
v6.1.123
v6.1.124
v6.1.125
v6.1.126
v6.1.127
v6.1.128
v6.1.129
v6.1.13
v6.1.130
v6.1.131
v6.1.132
v6.1.133
v6.1.134
v6.1.135
v6.1.136
v6.1.137
v6.1.138
v6.1.139
v6.1.14
v6.1.140
v6.1.141
v6.1.142
v6.1.143
v6.1.144
v6.1.145
v6.1.146
v6.1.147
v6.1.148
v6.1.149
v6.1.15
v6.1.150
v6.1.16
v6.1.17
v6.1.18
v6.1.19
v6.1.2
v6.1.20
v6.1.21
v6.1.22
v6.1.23
v6.1.24
v6.1.25
v6.1.26
v6.1.27
v6.1.28
v6.1.29
v6.1.3
v6.1.30
v6.1.31
v6.1.32
v6.1.33
v6.1.34
v6.1.35
v6.1.36
v6.1.37
v6.1.38
v6.1.39
v6.1.4
v6.1.40
v6.1.41
v6.1.42
v6.1.43
v6.1.44
v6.1.45
v6.1.46
v6.1.47
v6.1.48
v6.1.49
v6.1.5
v6.1.50
v6.1.51
v6.1.52
v6.1.53
v6.1.54
v6.1.55
v6.1.56
v6.1.57
v6.1.58
v6.1.59
v6.1.6
v6.1.60
v6.1.61
v6.1.62
v6.1.63
v6.1.64
v6.1.65
v6.1.66
v6.1.67
v6.1.68
v6.1.69
v6.1.7
v6.1.70
v6.1.71
v6.1.72
v6.1.73
v6.1.74
v6.1.75
v6.1.76
v6.1.77
v6.1.78
v6.1.79
v6.1.8
v6.1.80
v6.1.81
v6.1.82
v6.1.83
v6.1.84
v6.1.85
v6.1.86
v6.1.87
v6.1.88
v6.1.89
v6.1.9
v6.1.90
v6.1.91
v6.1.92
v6.1.93
v6.1.94
v6.1.95
v6.1.96
v6.1.97
v6.1.98
v6.1.99
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.12.10
v6.12.11
v6.12.12
v6.12.13
v6.12.14
v6.12.15
v6.12.16
v6.12.17
v6.12.18
v6.12.19
v6.12.2
v6.12.20
v6.12.21
v6.12.22
v6.12.23
v6.12.24
v6.12.25
v6.12.26
v6.12.27
v6.12.28
v6.12.29
v6.12.3
v6.12.30
v6.12.31
v6.12.32
v6.12.33
v6.12.34
v6.12.35
v6.12.36
v6.12.37
v6.12.38
v6.12.39
v6.12.4
v6.12.40
v6.12.41
v6.12.42
v6.12.43
v6.12.44
v6.12.45
v6.12.5
v6.12.6
v6.12.7
v6.12.8
v6.12.9
v6.13
v6.13-rc1
v6.13-rc2
v6.13-rc3
v6.13-rc4
v6.13-rc5
v6.13-rc6
v6.13-rc7
v6.14
v6.14-rc1
v6.14-rc2
v6.14-rc3
v6.14-rc4
v6.14-rc5
v6.14-rc6
v6.14-rc7
v6.15
v6.15-rc1
v6.15-rc2
v6.15-rc3
v6.15-rc4
v6.15-rc5
v6.15-rc6
v6.15-rc7
v6.16
v6.16-rc1
v6.16-rc2
v6.16-rc3
v6.16-rc4
v6.16-rc5
v6.16-rc6
v6.16-rc7
v6.16.1
v6.16.2
v6.16.3
v6.16.4
v6.16.5
v6.17-rc1
v6.17-rc2
v6.17-rc3
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
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.100
v6.6.101
v6.6.102
v6.6.103
v6.6.104
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.16
v6.6.17
v6.6.18
v6.6.19
v6.6.2
v6.6.20
v6.6.21
v6.6.22
v6.6.23
v6.6.24
v6.6.25
v6.6.26
v6.6.27
v6.6.28
v6.6.29
v6.6.3
v6.6.30
v6.6.31
v6.6.32
v6.6.33
v6.6.34
v6.6.35
v6.6.36
v6.6.37
v6.6.38
v6.6.39
v6.6.4
v6.6.40
v6.6.41
v6.6.42
v6.6.43
v6.6.44
v6.6.45
v6.6.46
v6.6.47
v6.6.48
v6.6.49
v6.6.5
v6.6.50
v6.6.51
v6.6.52
v6.6.53
v6.6.54
v6.6.55
v6.6.56
v6.6.57
v6.6.58
v6.6.59
v6.6.6
v6.6.60
v6.6.61
v6.6.62
v6.6.63
v6.6.64
v6.6.65
v6.6.66
v6.6.67
v6.6.68
v6.6.69
v6.6.7
v6.6.70
v6.6.71
v6.6.72
v6.6.73
v6.6.74
v6.6.75
v6.6.76
v6.6.77
v6.6.78
v6.6.79
v6.6.8
v6.6.80
v6.6.81
v6.6.82
v6.6.83
v6.6.84
v6.6.85
v6.6.86
v6.6.87
v6.6.88
v6.6.89
v6.6.9
v6.6.90
v6.6.91
v6.6.92
v6.6.93
v6.6.94
v6.6.95
v6.6.96
v6.6.97
v6.6.98
v6.6.99
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7
Database specific
vanir_signatures
[
{
"id": "CVE-2025-39857-04fd3d36",
"target": {
"function": "smc_ib_is_sg_need_sync",
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@34f17cbe027050b8d5316ea1b6f9bd7c378e92de",
"deprecated": false,
"digest": {
"length": 386.0,
"function_hash": "5348523478696691290241022243621899057"
}
},
{
"id": "CVE-2025-39857-0b817176",
"target": {
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0cdf1fd8fc59d44a48c694324611136910301ef9",
"deprecated": false,
"digest": {
"line_hashes": [
"316761453972516977319956445519095319421",
"225546753762193028464088858133381791816",
"192009587245991263155177277482300609419"
],
"threshold": 0.9
}
},
{
"id": "CVE-2025-39857-398972af",
"target": {
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ba1e9421cf1a8369d25c3832439702a015d6b5f9",
"deprecated": false,
"digest": {
"line_hashes": [
"316761453972516977319956445519095319421",
"225546753762193028464088858133381791816",
"192009587245991263155177277482300609419"
],
"threshold": 0.9
}
},
{
"id": "CVE-2025-39857-71421fea",
"target": {
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@34f17cbe027050b8d5316ea1b6f9bd7c378e92de",
"deprecated": false,
"digest": {
"line_hashes": [
"316761453972516977319956445519095319421",
"225546753762193028464088858133381791816",
"192009587245991263155177277482300609419"
],
"threshold": 0.9
}
},
{
"id": "CVE-2025-39857-738105fc",
"target": {
"function": "smc_ib_is_sg_need_sync",
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@eb929910bd4b4165920fa06a87b22cc6cae92e0e",
"deprecated": false,
"digest": {
"length": 386.0,
"function_hash": "5348523478696691290241022243621899057"
}
},
{
"id": "CVE-2025-39857-9a958141",
"target": {
"function": "smc_ib_is_sg_need_sync",
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ba1e9421cf1a8369d25c3832439702a015d6b5f9",
"deprecated": false,
"digest": {
"length": 386.0,
"function_hash": "5348523478696691290241022243621899057"
}
},
{
"id": "CVE-2025-39857-bf7e27a4",
"target": {
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@eb929910bd4b4165920fa06a87b22cc6cae92e0e",
"deprecated": false,
"digest": {
"line_hashes": [
"316761453972516977319956445519095319421",
"225546753762193028464088858133381791816",
"192009587245991263155177277482300609419"
],
"threshold": 0.9
}
},
{
"id": "CVE-2025-39857-ce236d3e",
"target": {
"function": "smc_ib_is_sg_need_sync",
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0cdf1fd8fc59d44a48c694324611136910301ef9",
"deprecated": false,
"digest": {
"length": 386.0,
"function_hash": "5348523478696691290241022243621899057"
}
},
{
"id": "CVE-2025-39857-ec5d9eaa",
"target": {
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@f18d9b3abf9c6587372cc702f963a7592277ed56",
"deprecated": false,
"digest": {
"line_hashes": [
"316761453972516977319956445519095319421",
"225546753762193028464088858133381791816",
"192009587245991263155177277482300609419"
],
"threshold": 0.9
}
},
{
"id": "CVE-2025-39857-f1105d10",
"target": {
"function": "smc_ib_is_sg_need_sync",
"file": "net/smc/smc_ib.c"
},
"signature_version": "v1",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@f18d9b3abf9c6587372cc702f963a7592277ed56",
"deprecated": false,
"digest": {
"length": 386.0,
"function_hash": "5348523478696691290241022243621899057"
}
}
]