2 Commits

Author	SHA1	Message	Date
Jann Horn	c26958cb5a	Take mmap lock in cacheflush syscall ... We need to take the mmap lock around find_vma() and subsequent use of the VMA. Otherwise, we can race with concurrent operations like munmap(), which can lead to use-after-free accesses to freed VMAs. Fixes: 1000197d80 ("nios2: System calls handling") Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>	2021-02-19 15:01:59 +08:00
Ley Foon Tan	1000197d80	nios2: System calls handling ... This patch adds support for system calls from userspaces. It uses the asm-generic/unistd.h definitions with architecture spcific syscall. The sys_call_table is just an array defined in a C file and it contains pointers to the syscall functions. Signed-off-by: Ley Foon Tan <lftan@altera.com>	2014-12-08 12:55:58 +08:00