From: Adrian Bunk <bunk@kernel.org>
To: kyle@parisc-linux.org, matthew@wil.cx, grundler@parisc-linux.org
Cc: linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: parisc setup_sigcontext32() array overflows
Date: Sat, 17 May 2008 22:16:37 +0300 [thread overview]
Message-ID: <20080517191636.GA8140@cs181133002.pp.htv.fi> (raw)
include/asm-parisc/ptrace.h:
<-- snip -->
...
struct pt_regs {
unsigned long gr[32]; /* PSW is in gr[0] */
...
}
<-- snip -->
arch/parisc/kernel/signal32.c:
<-- snip -->
...
setup_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf,
struct pt_regs *regs, int in_syscall)
{
...
/* Store upper half */
compat_reg = (compat_uint_t)(regs->gr[32] >> 32);
... ^^
/* Store upper half */
compat_reg = (compat_uint_t)((regs->gr[32]+4) >> 32);
... ^^
<-- snip -->
Spotted by the GNU C compiler.
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
next reply other threads:[~2008-05-17 19:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-17 19:16 Adrian Bunk [this message]
2008-05-17 19:22 ` Kyle McMartin
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