#VU104629 NULL pointer dereference in Linux kernel - CVE-2022-49096
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104629
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49096
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the efx_remove_channels(), efx_realloc_channels() and efx_set_channels() functions in drivers/net/ethernet/sfc/efx_channels.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/059a47f1da93811d37533556d67e72f2261b1127
- https://git.kernel.org/stable/c/b8c46bc358d84701e7f7ffa054037db25f25da0e
- https://git.kernel.org/stable/c/dcc85e1593686e42c6749ef3d356db34759d59e8
- https://git.kernel.org/stable/c/ed7a824fda8732578d1014fad1f7fb0363705090
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.34