CVE-2026-72450

Source
https://cve.org/CVERecord?id=CVE-2026-72450
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72450.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-72450
Downstream
BELL (1)
DEBIAN (1)
OESA (2)
openSUSE (1)
SUSE (9)
UBUNTU (1)
Related
Published
2026-08-15T05:56:58Z
Modified
2026-10-20T17:27:12Z
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
xfrm: validate selector family and prefixlen during match
Details

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

xfrm: validate selector family and prefixlen during match

syzbot reported a shift-out-of-bounds in xfrm_selector_match() due to AF_UNSPEC selector with large prefixlen (e.g. 128) matched against IPv4 flow (when XFRM_STATE_AF_UNSPEC is set).

Fix this by:

  • Rejecting mismatched families in xfrm_selector_match.
  • Returning false in addr4_match if prefixlen > 32.
  • Returning false in addr_match if prefixlen > 128 (prevents overflow).
Database specific
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72450.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
8df5cd51fd70c33aa1776e5cbcd82b0a86649d73
Fixed
87a5bbccc7ff4edb3f42fea387124237d2ba91ee
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71
Fixed
bd7f202cf77556cff59f68dc30e4cdf40cb6e33b
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
bce1afaa212ec380bf971614f70909a27882b862
Fixed
a3968ad4195d72c8fddcc6c0ef39da95ac98711a
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
7d9868180bd1e4cf37e7c5067362658971162366
Fixed
efa9e3b9f3dea2e1ea4c7edf4edc863faef85986
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563
Fixed
78783fefdc8f36879b1a17efa0d3195ea5f2dc5f
Fixed
6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe
Fixed
5a03a2ee17e8259dde631ed84fd8322db06cb2ae
Fixed
40f0b1047918539f0b0f795ac65e35336b4c2c78
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5.10.229
Fixed
5.10.261
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5.15.170
Fixed
5.15.212
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6.1.115
Fixed
6.1.178
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6.6.59
Fixed
6.6.145
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4.19.323
Fixed
4.20
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5.4.285
Fixed
5.5
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6.11.6
Fixed
6.12
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f31398570acf0f0804c644006f7bfa9067106b0a
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
401ad99a5ae7180dd9449eac104cb755f442e7f3
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e68dd80ba498265d2266b12dc3459164f4ff0c4a

Affected versions

v4.*
v4.19.323
v4.19.324
v4.19.325
v5.*
v5.10.229
v5.10.230
v5.10.231
v5.10.232
v5.10.233
v5.10.234
v5.10.235
v5.10.236
v5.10.237
v5.10.238
v5.10.239
v5.10.240
v5.10.241
v5.10.242
v5.10.243
v5.10.244
v5.10.245
v5.10.246
v5.10.247
v5.10.248
v5.10.249
v5.10.250
v5.10.251
v5.10.252
v5.10.253
v5.10.254
v5.10.255
v5.10.256
v5.10.257
v5.10.258
v5.10.259
v5.10.260
v5.15.170
v5.15.171
v5.15.172
v5.15.173
v5.15.174
v5.15.175
v5.15.176
v5.15.177
v5.15.178
v5.15.179
v5.15.180
v5.15.181
v5.15.182
v5.15.183
v5.15.184
v5.15.185
v5.15.186
v5.15.187
v5.15.188
v5.15.189
v5.15.190
v5.15.191
v5.15.192
v5.15.193
v5.15.194
v5.15.195
v5.15.196
v5.15.197
v5.15.198
v5.15.199
v5.15.200
v5.15.201
v5.15.202
v5.15.203
v5.15.204
v5.15.205
v5.15.206
v5.15.207
v5.15.208
v5.15.209
v5.15.210
v5.15.211
v5.4.285
v5.4.286
v5.4.287
v5.4.288
v5.4.289
v5.4.290
v5.4.291
v5.4.292
v5.4.293
v5.4.294
v5.4.295
v5.4.296
v5.4.297
v5.4.298
v5.4.299
v5.4.300
v5.4.301
v5.4.302
v6.*
v6.1.115
v6.1.116
v6.1.117
v6.1.118
v6.1.119
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
v6.1.130
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
v6.1.140
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
v6.1.150
v6.1.151
v6.1.152
v6.1.153
v6.1.154
v6.1.155
v6.1.156
v6.1.157
v6.1.158
v6.1.159
v6.1.160
v6.1.161
v6.1.162
v6.1.163
v6.1.164
v6.1.165
v6.1.166
v6.1.167
v6.1.168
v6.1.169
v6.1.170
v6.1.171
v6.1.172
v6.1.173
v6.1.174
v6.1.175
v6.1.176
v6.1.177
v6.11.10
v6.11.11
v6.11.6
v6.11.7
v6.11.8
v6.11.9
v6.6.100
v6.6.101
v6.6.102
v6.6.103
v6.6.104
v6.6.105
v6.6.106
v6.6.107
v6.6.108
v6.6.109
v6.6.110
v6.6.111
v6.6.112
v6.6.113
v6.6.114
v6.6.115
v6.6.116
v6.6.117
v6.6.118
v6.6.119
v6.6.120
v6.6.121
v6.6.122
v6.6.123
v6.6.124
v6.6.125
v6.6.126
v6.6.127
v6.6.128
v6.6.129
v6.6.130
v6.6.131
v6.6.132
v6.6.133
v6.6.134
v6.6.135
v6.6.136
v6.6.137
v6.6.138
v6.6.139
v6.6.140
v6.6.141
v6.6.142
v6.6.143
v6.6.144
v6.6.59
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
v6.6.70
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
v6.6.80
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
v6.6.90
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

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72450.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.10.261
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.212
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.178
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.145
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.97
Type
ECOSYSTEM
Events
Introduced
6.12.0
Fixed
6.18.40
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
7.1.5

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72450.json"