Improper locking in Linux kernel - CVE-2022-48785
Published: July 17, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94456
CSH Severity: Low
CVSS v4.0: 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-2022-48785
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the mld_newpack() function in net/ipv6/mcast.c, within the EXPORT_SYMBOL() function in net/ipv6/addrconf.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-48785
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/3e11ef1903cf6c2fba35594b193a3570854d9e9e
- https://git.kernel.org/stable/c/27f567c84f446048670376827e356f9c92033bf9
- https://git.kernel.org/stable/c/26394fc118d6115390bd5b3a0fb17096271da227
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.25
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17