CVE-2023-53189

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Source
https://cve.org/CVERecord?id=CVE-2023-53189
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53189.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-53189
Downstream
BELL (1)
CLSA (1)
DEBIAN (1)
SUSE (13)
UBUNTU (1)
Related
SUSE (13)
Published
2025-09-15T14:05:26Z
Modified
2026-10-20T10:30:49Z
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
ipv6/addrconf: fix a potential refcount underflow for idev
Details

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

ipv6/addrconf: fix a potential refcount underflow for idev

Now in addrconf_mod_rs_timer(), reference idev depends on whether rs_timer is not pending. Then modify rs_timer timeout.

There is a time gap in [1], during which if the pending rs_timer becomes not pending. It will miss to hold idev, but the rs_timer is activated. Thus rs_timer callback function addrconf_rs_timer() will be executed and put idev later without holding idev. A refcount underflow issue for idev can be caused by this.

if (!timer_pending(&idev->rs_timer))
	in6_dev_hold(idev);
	  <--------------[1]
mod_timer(&idev->rs_timer, jiffies + when);

To fix the issue, hold idev if mod_timer() return 0.

Database specific 
{
    "cna_assigner":  "Linux",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53189.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
b7b1bfce0bb68bd8f6e62a28295922785cc63781
Fixed
c6395e32935d35e6f935e7caf1c2dac5a95943b4
Fixed
df62fdcd004afa72ecbed0e862ebb983acd3aa57
Fixed
c7eeba47058532f6077d6a658e38b6698f6ae71a
Fixed
2ad31ce40e8182860b631e37209e93e543790b7c
Fixed
82abd1c37d3bf2a2658b34772c17a25a6f9cca42
Fixed
436b7cc7eae7851c184b671ed7a4a64c750b86f7
Fixed
1f656e483eb4733d62f18dfb206a49b78f60f495
Fixed
06a0716949c22e2aefb648526580671197151acc
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3.10.105
Fixed
3.11
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
973d5956f754cfc306f5e274d71503498f4b0324

Affected versions

v3.*
v3.10.105
v3.10.106
v3.10.107
v3.10.108

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53189.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.11.0
Fixed
4.14.322
Type
ECOSYSTEM
Events
Introduced
4.15.0
Fixed
4.19.291
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.251
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.188
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.121
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.40
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.4.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53189.json"