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MIPS: syscall: Fix AUDIT value for O32 processes on MIPS64 

On MIPS64, O32 processes set both TIF_32BIT_ADDR and
TIF_32BIT_REGS so the previous condition treated O32 applications
as N32 when evaluating seccomp filters. Fix the condition to check
both TIF_32BIT_{REGS, ADDR} for the N32 AUDIT flag.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7480/
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: James Hogan <james.hogan@imgtec.com>
hifive-unleashed-5.1
Markos Chandras 2014-07-24 12:10:01 +01:00 committed by Ralf Baechle
parent bfcdf13063
commit 40381529f8
1 changed files with 5 additions and 3 deletions
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8
arch/mips/include/asm/syscall.h
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@ -131,10 +131,12 @@ static inline int syscall_get_arch(void)
{
int arch = EM_MIPS;
#ifdef CONFIG_64BIT
if (!test_thread_flag(TIF_32BIT_REGS))
if (!test_thread_flag(TIF_32BIT_REGS)) {
arch |= __AUDIT_ARCH_64BIT;
if (test_thread_flag(TIF_32BIT_ADDR))
arch |= __AUDIT_ARCH_CONVENTION_MIPS64_N32;
/* N32 sets only TIF_32BIT_ADDR */
if (test_thread_flag(TIF_32BIT_ADDR))
arch |= __AUDIT_ARCH_CONVENTION_MIPS64_N32;
}
#endif
#if defined(__LITTLE_ENDIAN)
arch |= __AUDIT_ARCH_LE;