* [Qemu-devel] [PATCH] linux-user: fix signal number range check
@ 2013-06-15 12:33 Andreas Schwab
2013-06-15 15:13 ` Peter Maydell
0 siblings, 1 reply; 2+ messages in thread
From: Andreas Schwab @ 2013-06-15 12:33 UTC (permalink / raw)
To: qemu-devel
When translating between host and target signal numbers keep negative
numbers unchanged, avoiding access beyond array bounds.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
---
linux-user/signal.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 5da8452..c4d8970 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -102,14 +102,14 @@ static inline int sas_ss_flags(unsigned long sp)
int host_to_target_signal(int sig)
{
- if (sig >= _NSIG)
+ if (sig < 0 || sig >= _NSIG)
return sig;
return host_to_target_signal_table[sig];
}
int target_to_host_signal(int sig)
{
- if (sig >= _NSIG)
+ if (sig < 0 || sig >= _NSIG)
return sig;
return target_to_host_signal_table[sig];
}
--
1.8.3.1
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
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2013-06-15 12:33 [Qemu-devel] [PATCH] linux-user: fix signal number range check Andreas Schwab
2013-06-15 15:13 ` Peter Maydell
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