Linux kernel bug fix: pstore: Convert buf_lock to semaphore
Subsystem: filesystem (drivers/firmware/efi/efi-pstore.c)
Bug type: crash, severity: high
Files changed: arch/powerpc/kernel/nvram_64.c;drivers/acpi/apei/erst.c;drivers/firmware/efi/efi-pstore.c;fs/pstore/platform.c;fs/pstore/ram.c;include/linux/pstore.h
Introduced by Sylvain Chouleur on 2016-09-09 16:08:42 +0100; fixed by Kees Cook on 2018-12-03 17:11:02 -0800 (lifetime: 815 days)