SB20250619229 - NULL pointer dereference in Linux kernel tee driver
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250619229
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2022-50080)
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 website.
References
- 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