Linux kernel bug fix: mm/gup: prevent gup_fast from racing with COW during fork
Subsystem: memory (drivers/firmware/efi/efi.c)
Bug type: unknown, severity: unknown
Files changed: arch/x86/kernel/tboot.c;drivers/firmware/efi/efi.c;include/linux/mm_types.h;kernel/fork.c;mm/gup.c;mm/init-mm.c;mm/memory.c
Introduced by Linus Torvalds on 2020-10-08 10:11:32 -0700; fixed by Jason Gunthorpe on 2020-12-15 12:13:39 -0800 (lifetime: 68 days)