CVE-2023-53565 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.28%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 4

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Check for probe() id argument being NULL The probe() id argument may be NULL in 2 scenarios: 1. brcmf_pcie_pm_leave_D3() calling brcmf_pcie_probe() to reprobe the device. 2. If a user tries to manually bind the driver from sysfs then the sdio / pcie / usb probe() function gets called with NULL as id argument. 1. Is being hit by users causing the following oops on resume and causing wifi to stop working: BUG…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel6.2 — 6.3.4+1
▶Debianlinux/linux_kernel< 6.3.7-1+1
▶CVEListV5linux/linuxda6d9c8ecd00e20218461007948f2b0a8e7fa242 — 84766e77a5c35e2b60e34f570c62fc97adc05e09+2
▶debiandebian/linux< linux 6.3.7-1 (forky)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-5hv8-xrrg-hm72: In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Check for probe() id argument being NULL The probe() id argument↗2025-10-04
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OSV
CVE-2023-53565: In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Check for probe() id argument being NULL The probe() id argument m↗2025-10-04
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📋Vendor Advisories

2
Red Hat
kernel: wifi: brcmfmac: Check for probe() id argument being NULL↗2025-10-04
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Debian
CVE-2023-53565: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: brcmf...↗2023
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