CVE-2023-53113
wifi: nl80211: fix NULL-ptr deref in offchan check
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: fix NULL-ptr deref in offchan check If, e.g. in AP mode, the link was already created by userspace
but not activated yet, it has a chandef but the chandef isn't
valid and has no channel. Check for this and ignore this link.
A flaw was found in the cfg80211 module in the Linux kernel. In Access Point (AP) mode, if a wireless link is created by userspace but not yet activated, it may contain an invalid channel definition with no channel. This issue may cause a NULL pointer dereference that results in a denial of service.
In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: fix NULL-ptr deref in offchan check If, e.g. in AP mode, the link was already created by userspace but not activated yet, it has a chandef but the chandef isn't valid and has no channel. Check for this and ignore this link.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2025-05-02 CVE Reserved
- 2025-05-02 CVE Published
- 2025-05-04 CVE Updated
- 2025-07-09 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/7b0a0e3c3a88260b6fcb017e49f198463aa62ed1 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/7a53ad13c09150076b7ddde96c2dfc5622c90b45 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-53113 | 2023-11-14 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2363683 | 2023-11-14 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.0 < 6.1.21 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.1.21" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.0 < 6.2.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.2.8" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.0 < 6.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.3" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.19.2 Search vendor "Linux" for product "Linux Kernel" and version "5.19.2" | en |
Affected
| ||||||