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Commit d6c178e9 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: Compat: Zero upper 32-bit of offset_high and offset_low. 



Through sys_llseek() arguably should do exactly that it doesn't which
means llseek(2) will fail for o32 processes if offset_low has bit 31 set.

As suggested by Heiko Carstens.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 0e6826c7

arch/mips/kernel/linux32.c

+3 −3
Original line number Diff line number Diff line
@@ -133,9 +133,9 @@ SYSCALL_DEFINE4(32_ftruncate64, unsigned long, fd, unsigned long, __dummy, 
	return sys_ftruncate(fd, merge_64(a2, a3));

}



SYSCALL_DEFINE5(32_llseek, unsigned long, fd, unsigned long, offset_high,

	unsigned long, offset_low, loff_t __user *, result,

	unsigned long, origin)

SYSCALL_DEFINE5(32_llseek, unsigned int, fd, unsigned int, offset_high,

		unsigned int, offset_low, loff_t __user *, result,

		unsigned int, origin)

{

	return sys_llseek(fd, offset_high, offset_low, result, origin);

}