Security update for the Linux Kernel (Live Patch 20 for SLE 15)
Details
This update for the Linux Kernel 4.12.14-150_58 fixes several issues.
The following security issues were fixed:
CVE-2021-3444: Fixed an issue with the bpf verifier which did not properly handle mod32 destination register truncation when the source register was known to be 0 leading to out of bounds read (bsc#1184171).
CVE-2021-28688: Fixed an issue introduced by XSA-365 (bsc##1182294, bsc#1183646).
CVE-2021-26930: Fixed an improper error handling in blkback's grant mapping (XSA-365 bsc#1182294).
CVE-2021-26931: Fixed an issue where Linux kernel was treating grant mapping errors as bugs (XSA-362 bsc#1183022).