#VU111502 NULL pointer dereference in Linux kernel - CVE-2022-50080
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111502
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-2022-50080
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 tee_shm_register_user_buf() function in drivers/tee/tee_shm.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/2f8e79a1a6128214cb9b205a9869341af5dfb16b
- https://git.kernel.org/stable/c/573ae4f13f630d6660008f1974c0a8a29c30e18a
- https://git.kernel.org/stable/c/578c349570d2a912401963783b36e0ec7a25c053
- https://git.kernel.org/stable/c/58c008d4d398f792ca67f35650610864725518fd
- https://git.kernel.org/stable/c/965333345fe952cc7eebc8e3a565ffc709441af2
- https://git.kernel.org/stable/c/b37e0f17653c00b586cdbcdf0dbca475358ecffd
- https://git.kernel.org/stable/c/c12f0e6126ad223806a365084e86370511654bf1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.62