If the user-specified kprobe handler causes the page fault
when accessing user space address, fixup this fault since
do_page_fault() should not continue as the kprobe handler are
run with preemption disabled.
Please apply.
Signed-off-by: Anil S Keshavamurthy <[email protected]>
---
arch/ia64/kernel/kprobes.c | 6 ++++++
1 file changed, 6 insertions(+)
Index: 2.6.18-rc6-git2/arch/ia64/kernel/kprobes.c
===================================================================
--- 2.6.18-rc6-git2.orig/arch/ia64/kernel/kprobes.c
+++ 2.6.18-rc6-git2/arch/ia64/kernel/kprobes.c
@@ -768,6 +768,12 @@ static int __kprobes kprobes_fault_handl
*/
if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr))
return 1;
+ /*
+ * In case the user-specified fault handler returned
+ * zero, try to fix up.
+ */
+ if (ia64_done_with_exception(regs))
+ return 1;
/*
* In case the user-specified fault handler returned
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
