CVE-2025-40112

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2025-40112
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40112.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-40112
Downstream
BELL (1)
CLSA (1)
DEBIAN (1)
ROOT (2)
UBUNTU (1)
Published
2025-11-12T10:23:16Z
Modified
2026-10-08T02:49:02Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
sparc: fix accurate exception reporting in copy_{from_to}_user for Niagara
Details

In the Linux kernel, the following vulnerability has been resolved:

sparc: fix accurate exception reporting in copy_{from_to}_user for Niagara

The referenced commit introduced exception handlers on user-space memory references in copy_from_user and copy_to_user. These handlers return from the respective function and calculate the remaining bytes left to copy using the current register contents. This commit fixes a couple of bad calculations and a broken epilogue in the exception handlers. This will prevent crashes and ensure correct return values of copy_from_user and copy_to_user in the faulting case. The behaviour of memcpy stays unchanged.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40112.json"
}
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
Introduced
7ae3aaf53f1695877ccd5ebbc49ea65991e41f1e
Fixed
05440320ea3e249d5f984918f2bf51210c1a7c03
Fixed
7823fc4d8ab5e57f8db7806ff2530c03c166c4bb
Fixed
37547d8e6eba87507279ee3dfddfd9dc46335454
Fixed
a365ee556e45f780ee322b349a06efdad0c1458f
Fixed
8cdeb5e482d3fdce7e825444b6ca3865e24c0228
Fixed
a90ce516a73dbe087f9bf3dbf311301a58d125c6
Fixed
088c5098ec6d6b0396edfbf3dad3e81de8469c1c
Fixed
0b67c8fc10b13a9090340c5f8a37d308f4e1571c
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4.4.34
Fixed
4.5
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4.8.10
Fixed
4.9
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
bfc8be6593097cb074d3912ba2f27565cfbb7d6e
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
a15859f9d8396cce7c55ccdb7e75f70f14cbc349

Affected versions

v4.*
v4.4.100
v4.4.101
v4.4.102
v4.4.103
v4.4.104
v4.4.105
v4.4.106
v4.4.107
v4.4.108
v4.4.109
v4.4.110
v4.4.111
v4.4.112
v4.4.113
v4.4.114
v4.4.115
v4.4.116
v4.4.117
v4.4.118
v4.4.119
v4.4.120
v4.4.121
v4.4.122
v4.4.123
v4.4.124
v4.4.125
v4.4.126
v4.4.127
v4.4.128
v4.4.129
v4.4.130
v4.4.131
v4.4.132
v4.4.133
v4.4.134
v4.4.135
v4.4.136
v4.4.137
v4.4.138
v4.4.139
v4.4.140
v4.4.141
v4.4.142
v4.4.143
v4.4.144
v4.4.145
v4.4.146
v4.4.147
v4.4.148
v4.4.149
v4.4.150
v4.4.151
v4.4.152
v4.4.153
v4.4.154
v4.4.155
v4.4.156
v4.4.157
v4.4.158
v4.4.159
v4.4.160
v4.4.161
v4.4.162
v4.4.163
v4.4.164
v4.4.165
v4.4.166
v4.4.167
v4.4.168
v4.4.169
v4.4.170
v4.4.171
v4.4.172
v4.4.173
v4.4.174
v4.4.175
v4.4.176
v4.4.177
v4.4.178
v4.4.179
v4.4.180
v4.4.181
v4.4.182
v4.4.183
v4.4.184
v4.4.185
v4.4.186
v4.4.187
v4.4.188
v4.4.189
v4.4.190
v4.4.191
v4.4.192
v4.4.193
v4.4.194
v4.4.195
v4.4.196
v4.4.197
v4.4.198
v4.4.199
v4.4.200
v4.4.201
v4.4.202
v4.4.203
v4.4.204
v4.4.205
v4.4.206
v4.4.207
v4.4.208
v4.4.209
v4.4.210
v4.4.211
v4.4.212
v4.4.213
v4.4.214
v4.4.215
v4.4.216
v4.4.217
v4.4.218
v4.4.219
v4.4.220
v4.4.221
v4.4.222
v4.4.223
v4.4.224
v4.4.225
v4.4.226
v4.4.227
v4.4.228
v4.4.229
v4.4.230
v4.4.231
v4.4.232
v4.4.233
v4.4.234
v4.4.235
v4.4.236
v4.4.237
v4.4.238
v4.4.239
v4.4.240
v4.4.241
v4.4.242
v4.4.243
v4.4.244
v4.4.245
v4.4.246
v4.4.247
v4.4.248
v4.4.249
v4.4.250
v4.4.251
v4.4.252
v4.4.253
v4.4.254
v4.4.255
v4.4.256
v4.4.257
v4.4.258
v4.4.259
v4.4.260
v4.4.261
v4.4.262
v4.4.263
v4.4.264
v4.4.265
v4.4.266
v4.4.267
v4.4.268
v4.4.269
v4.4.270
v4.4.271
v4.4.272
v4.4.273
v4.4.274
v4.4.275
v4.4.276
v4.4.277
v4.4.278
v4.4.279
v4.4.280
v4.4.281
v4.4.282
v4.4.283
v4.4.284
v4.4.285
v4.4.286
v4.4.287
v4.4.288
v4.4.289
v4.4.290
v4.4.291
v4.4.292
v4.4.293
v4.4.294
v4.4.295
v4.4.296
v4.4.297
v4.4.298
v4.4.299
v4.4.300
v4.4.301
v4.4.302
v4.4.34
v4.4.35
v4.4.36
v4.4.37
v4.4.38
v4.4.39
v4.4.40
v4.4.41
v4.4.42
v4.4.43
v4.4.44
v4.4.45
v4.4.46
v4.4.47
v4.4.48
v4.4.49
v4.4.50
v4.4.51
v4.4.52
v4.4.53
v4.4.54
v4.4.55
v4.4.56
v4.4.57
v4.4.58
v4.4.59
v4.4.60
v4.4.61
v4.4.62
v4.4.63
v4.4.64
v4.4.65
v4.4.66
v4.4.67
v4.4.68
v4.4.69
v4.4.70
v4.4.71
v4.4.72
v4.4.73
v4.4.74
v4.4.75
v4.4.76
v4.4.77
v4.4.78
v4.4.79
v4.4.80
v4.4.81
v4.4.82
v4.4.83
v4.4.84
v4.4.85
v4.4.86
v4.4.87
v4.4.88
v4.4.89
v4.4.90
v4.4.91
v4.4.92
v4.4.93
v4.4.94
v4.4.95
v4.4.96
v4.4.97
v4.4.98
v4.4.99
v4.8.10
v4.8.11
v4.8.12
v4.8.13
v4.8.14
v4.8.15
v4.8.16
v4.8.17

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40112.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.9.0
Fixed
5.4.301
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.246
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.195
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.156
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.112
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.53
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.17.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40112.json"