Messages in this thread | | | Date | Tue, 28 Feb 2006 15:01:34 +1100 | From | Paul Mackerras <> | Subject | Re: [PATCH] Signal hadnling fix for 2.4 |
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Stephen Rothwell writes:
> While investigating a bug report about a 64bit application that crashed in > malloc, Paul Mackerras noticed that sys_rt_sigreturn's return value was > "int". It needs to be "long" or else the return value of a syscall that > is interrupted by a signal will be truncated to 32 bits and then sign > extended. This causes .e.g mmap's return value to be corrupted if it is > returning an address above 2^31 (which is what caused a SEGV in malloc). > This problem obviously only affects 64 bit processes. > > Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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