CVE-2023-53347 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 96.10%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
LinuxLinux KernelDebian Linux+3 more
Timeline
PublishedSep 17

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Handle pairing of E-switch via uplink un/load APIs In case user switch a device from switchdev mode to legacy mode, mlx5 first unpair the E-switch and afterwards unload the uplink vport. From the other hand, in case user remove or reload a device, mlx5 first unload the uplink vport and afterwards unpair the E-switch. The latter is causing a bug[1], hence, handle pairing of E-switch as part of uplink un/load APIs. […

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 Packages7 packages

▶NVDlinux/linux_kernel5.0 — 6.1.31+2
▶Debianlinux/linux_kernel< 6.1.37-1+2

Patches

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

🔴Vulnerability Details

2
OSV
CVE-2023-53347: In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Handle pairing of E-switch via uplink un/load APIs In case user switch a↗2025-09-17
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GHSA
GHSA-52q8-cgf7-57fr: In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Handle pairing of E-switch via uplink un/load APIs In case user switch↗2025-09-17
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📋Vendor Advisories

3
Red Hat
kernel: net/mlx5: Handle pairing of E-switch via uplink un/load APIs↗2025-09-17
▶
Microsoft
net/mlx5: Handle pairing of E-switch via uplink un/load APIs↗2025-09-09
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Debian
CVE-2023-53347: linux - In the Linux kernel, the following vulnerability has been resolved: net/mlx5: H...↗2023
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CVE-2023-53347 — NULL Pointer Dereference in Linux | cvebase