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authorAndrea Righi <righiandr@users.sourceforge.net>2007-05-23 14:14:52 -0700
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2007-06-14 18:30:49 +0200
commit126187f1e00048abec4d4a2eb3eeae396fbaa944 (patch)
tree29819132d3757ad9300e8596267614c900f78d16 /arch/avr32
parenteedab661a51966c454e38c17266a531aa58b4a98 (diff)
downloadlinux-2.6.34-ux500-126187f1e00048abec4d4a2eb3eeae396fbaa944.tar.gz
[AVR32] ratelimit segfault reporting rate
Limit the rate of the kernel logging for the segfaults of user applications, to avoid potential message floods or denial-of-service attacks. Signed-off-by: Andrea Righi <a.righi@cineca.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Diffstat (limited to 'arch/avr32')
-rw-r--r--arch/avr32/mm/fault.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
index e011f1ce187..4b2495285d9 100644
--- a/arch/avr32/mm/fault.c
+++ b/arch/avr32/mm/fault.c
@@ -158,7 +158,7 @@ bad_area:
up_read(&mm->mmap_sem);
if (user_mode(regs)) {
- if (exception_trace)
+ if (exception_trace && printk_ratelimit())
printk("%s%s[%d]: segfault at %08lx pc %08lx "
"sp %08lx ecr %lu\n",
is_init(tsk) ? KERN_EMERG : KERN_INFO,