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Commit 24459946 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: Audit: Fix hang in entry.S. 



_TIF_WORK_MASK false had _TIF_SYSCALL_AUDIT set.  If a thread's
_TIF_SYSCALL_AUDIT is ever set this will lead to an endless loop on the
way out from a syscall.

Currently this is only a theoretic bug as init/Kconfig doesn't allow
AUDIT_SYSCALL to be enabled for MIPS.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 5707bf6b

arch/mips/include/asm/thread_info.h

+2 −1
Original line number Diff line number Diff line
@@ -146,7 +146,8 @@ register struct thread_info *__current_thread_info __asm__("$28"); 
#define _TIF_LOAD_WATCH		(1<<TIF_LOAD_WATCH)



/* work to do on interrupt/exception return */

#define _TIF_WORK_MASK		(0x0000ffef & ~_TIF_SECCOMP)

#define _TIF_WORK_MASK		(0x0000ffef &				\

					~(_TIF_SECCOMP | _TIF_SYSCALL_AUDIT))

/* work to do on any return to u-space */

#define _TIF_ALLWORK_MASK	(0x8000ffff & ~_TIF_SECCOMP)