SB2026022461 - Ubuntu update for linux
Published: February 24, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2025-21780)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the smu_sys_set_pp_table() function in drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c. A local user can escalate privileges on the system.
2) Buffer overflow (CVE-ID: CVE-2022-49267)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error caused by usage of sprintf() function in drivers/mmc/core/bus.c, drivers/mmc/core/sdio.c, drivers/mmc/core/sdio_bus.c, drivers/mmc/core/sd.c, and drivers/mmc/core/mmc.c files. A local user can trigger memory corruption and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.