CVE-2025-21962

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Source
https://cve.org/CVERecord?id=CVE-2025-21962
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21962.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21962
Downstream
Related
Published
2025-04-01T15:46:59.285Z
Modified
2026-05-18T05:56:14.962430789Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
cifs: Fix integer overflow while processing closetimeo mount option
Details

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

cifs: Fix integer overflow while processing closetimeo mount option

User-provided mount parameter closetimeo of type u32 is intended to have an upper limit, but before it is validated, the value is converted from seconds to jiffies which can lead to an integer overflow.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21962.json",
    "cna_assigner": "Linux"
}
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
1d9cad9c5873097ea141ffc5da1e7921ce765aa8
Fixed
513f6cf2e906a504b7ab0b62b2eea993a6f64558
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5efdd9122eff772eae2feae9f0fc0ec02d4846a3
Fixed
9968fcf02cf6b0f78fbacf3f63e782162603855a
Fixed
6c13fcb7cf59ae65940da1dfea80144e42921e53
Fixed
1c46673be93dd2954f44fe370fb4f2b8e6214224
Fixed
b24edd5c191c2689c59d0509f0903f9487eb6317
Fixed
d5a30fddfe2f2e540f6c43b59cf701809995faef

Affected versions

v5.*
v5.15.107
v5.15.108
v5.15.109
v5.15.110
v5.15.111
v5.15.112
v5.15.113
v5.15.114
v5.15.115
v5.15.116
v5.15.117
v5.15.118
v5.15.119
v5.15.120
v5.15.121
v5.15.122
v5.15.123
v5.15.124
v5.15.125
v5.15.126
v5.15.127
v5.15.128
v5.15.129
v5.15.130
v5.15.131
v5.15.132
v5.15.133
v5.15.134
v5.15.135
v5.15.136
v5.15.137
v5.15.138
v5.15.139
v5.15.140
v5.15.141
v5.15.142
v5.15.143
v5.15.144
v5.15.145
v5.15.146
v5.15.147
v5.15.148
v5.15.149
v5.15.150
v5.15.151
v5.15.152
v5.15.153
v5.15.154
v5.15.155
v5.15.156
v5.15.157
v5.15.158
v5.15.159
v5.15.160
v5.15.161
v5.15.162
v5.15.163
v5.15.164
v5.15.165
v5.15.166
v5.15.167
v5.15.168
v5.15.169
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

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21962.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.15.180
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.132
Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
6.6.84
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.12.20
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.13.8

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21962.json"