Messages in this thread Patch in this message | | | Subject | [PATCH] UML - Remove bogus __NR_sigreturn check | Date | Fri, 03 Dec 2004 16:46:24 -0500 | From | Jeff Dike <> |
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Before Bodo's signal fixes and my signal delivery rework, it was possible for a process to execute UML code by running the default signal restorer. This is no longer possible, so this check can be removed from the sanity test for UML accidentally tracing itself.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Index: 2.6.9/arch/um/kernel/tt/syscall_user.c =================================================================== --- 2.6.9.orig/arch/um/kernel/tt/syscall_user.c 2004-12-03 12:46:55.000000000 -0500 +++ 2.6.9/arch/um/kernel/tt/syscall_user.c 2004-12-03 12:50:39.000000000 -0500 @@ -57,8 +57,7 @@ UPT_SYSCALL_NR(TASK_REGS(task)) = PT_SYSCALL_NR(proc_regs); - if((syscall != __NR_sigreturn) && - ((unsigned long *) PT_IP(proc_regs) >= &_stext) && + if(((unsigned long *) PT_IP(proc_regs) >= &_stext) && ((unsigned long *) PT_IP(proc_regs) <= &_etext)) tracer_panic("I'm tracing myself and I can't get out"); - 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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