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[PATCH] s390: rt_sigreturn fix

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Check return code of do_sigaltstack and force a SIGSEGV if it is -EFAULT.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Cedric Le Goater
2006-01-06 00:19:10 -08:00
committed by Linus Torvalds
parent a63a4931c3
commit 4e3df37e7f
2 changed files with 3 additions and 5 deletions
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2
arch/s390/kernel/compat_signal.c
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@@ -467,8 +467,6 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
if (err)
goto badframe;
/* It is more difficult to avoid calling this function than to
call it and ignore errors. */
set_fs (KERNEL_DS);
do_sigaltstack((stack_t __user *)&st, NULL, regs->gprs[15]);
set_fs (old_fs);