CVE-2026-53270

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Source
https://cve.org/CVERecord?id=CVE-2026-53270
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53270.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53270
Downstream
AZL (1)
BELL (1)
CGA (6)
DEBIAN (1)
ECHO (1)
MGASA (1)
OESA (2)
openSUSE (1)
RHSA (2)
RLSA (2)
ROOT (4)
SUSE (12)
UBUNTU (1)
Related
ALSA (3)
openSUSE (1)
SUSE (12)
Published
2026-06-25T08:39:55Z
Modified
2026-10-13T11:42:11Z
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
ipvs: clear the svc scheduler ptr early on edit
Details

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

ipvs: clear the svc scheduler ptr early on edit

ip_vs_edit_service() while unbinding the old scheduler clears the svc->scheduler ptr after the scheduler module initiates RCU callbacks. This can cause packets to use the old scheduler at the time when svc->sched_data is already freed after RCU grace period.

Fix it by clearing the ptr early in ip_vs_unbind_scheduler(), before the done_service method schedules any RCU callbacks.

Also, if the new scheduler fails to initialize when replacing the old scheduler, try to restore the old scheduler while still returning the error code.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53270.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
05f00505a89acd21f5d0d20f5797dfbc4cf85243
Fixed
d10730a1f2caf08088e0db1b19b242f3e6fa5f06
Fixed
e4feec3174036ba772006be74beee0efa09a9eb8
Fixed
7d4f5004511757e3984901ffb412fcf858d80ed5
Fixed
c6376b9b1b4d2bad638256b1b3588e073344ae69
Fixed
14e4689c113b4c06af1069364ade24fdd7055f33
Fixed
25918720ba97f974a4f8d433b5a0132c5b43f6f3
Fixed
19a9493faa4bf3c7bd0a386f30b60b1bb4a3da03
Fixed
193989cc6d80dd8e0460fb3992e69fa03bf0ff9b
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3.18.23
Fixed
3.19
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4.1.11
Fixed
4.2
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c803fddd2a95a70873c68dbff42d4c59fd2e674e
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4ec8fb23158797affae7993c15beba080488482f

Affected versions

v3.*
v3.18.100
v3.18.101
v3.18.102
v3.18.103
v3.18.104
v3.18.105
v3.18.106
v3.18.107
v3.18.108
v3.18.109
v3.18.110
v3.18.111
v3.18.112
v3.18.113
v3.18.114
v3.18.115
v3.18.116
v3.18.117
v3.18.118
v3.18.119
v3.18.120
v3.18.121
v3.18.122
v3.18.123
v3.18.124
v3.18.125
v3.18.126
v3.18.127
v3.18.128
v3.18.129
v3.18.130
v3.18.131
v3.18.132
v3.18.133
v3.18.134
v3.18.135
v3.18.136
v3.18.137
v3.18.138
v3.18.139
v3.18.140
v3.18.23
v3.18.24
v3.18.25
v3.18.26
v3.18.27
v3.18.28
v3.18.29
v3.18.30
v3.18.31
v3.18.32
v3.18.33
v3.18.34
v3.18.35
v3.18.36
v3.18.37
v3.18.38
v3.18.39
v3.18.40
v3.18.41
v3.18.42
v3.18.43
v3.18.44
v3.18.45
v3.18.46
v3.18.47
v3.18.48
v3.18.49
v3.18.50
v3.18.51
v3.18.52
v3.18.53
v3.18.54
v3.18.55
v3.18.56
v3.18.57
v3.18.58
v3.18.59
v3.18.60
v3.18.61
v3.18.62
v3.18.63
v3.18.64
v3.18.65
v3.18.66
v3.18.67
v3.18.68
v3.18.69
v3.18.70
v3.18.71
v3.18.72
v3.18.73
v3.18.74
v3.18.75
v3.18.76
v3.18.77
v3.18.78
v3.18.79
v3.18.80
v3.18.81
v3.18.82
v3.18.83
v3.18.84
v3.18.85
v3.18.86
v3.18.87
v3.18.88
v3.18.89
v3.18.90
v3.18.91
v3.18.92
v3.18.93
v3.18.94
v3.18.95
v3.18.96
v3.18.97
v3.18.98
v3.18.99
v4.*
v4.1.11
v4.1.12
v4.1.13
v4.1.14
v4.1.15
v4.1.16
v4.1.17
v4.1.18
v4.1.19
v4.1.20
v4.1.21
v4.1.22
v4.1.23
v4.1.24
v4.1.25
v4.1.26
v4.1.27
v4.1.28
v4.1.29
v4.1.30
v4.1.31
v4.1.32
v4.1.33
v4.1.34
v4.1.35
v4.1.36
v4.1.37
v4.1.38
v4.1.39
v4.1.40
v4.1.41
v4.1.42
v4.1.43
v4.1.44
v4.1.45
v4.1.46
v4.1.47
v4.1.48
v4.1.49
v4.1.50
v4.1.51
v4.1.52

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53270.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.2.0
Fixed
5.10.259
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.210
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.176
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.143
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.94
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.36
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.0.13

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53270.json"