summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorRoland McGrath <roland@redhat.com>2010-07-16 18:17:12 -0700
committerRoland McGrath <roland@redhat.com>2010-07-18 15:05:34 -0700
commita197479848a2f1a2a5c07cffa6c31ab5e8c82797 (patch)
tree6d66cad929d5a2e2aaeb9d33d94b46c9d1093b26 /arch
parentbea9a6d239cb2aa2ced4dcb0a05e1827ce61fa3d (diff)
downloadop-kernel-dev-a197479848a2f1a2a5c07cffa6c31ab5e8c82797.zip
op-kernel-dev-a197479848a2f1a2a5c07cffa6c31ab5e8c82797.tar.gz
x86: kprobes: fix swapped segment registers in kretprobe
In commit f007ea26, the order of the %es and %ds segment registers got accidentally swapped, so synthesized 'struct pt_regs' frames have the two values inverted. It's almost sure that these values never matter, and that they also never differ. But wrong is wrong. Signed-off-by: Roland McGrath <roland@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/kprobes.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 345a4b1..675879b 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -640,8 +640,8 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
/* Skip cs, ip, orig_ax and gs. */ \
" subl $16, %esp\n" \
" pushl %fs\n" \
- " pushl %ds\n" \
" pushl %es\n" \
+ " pushl %ds\n" \
" pushl %eax\n" \
" pushl %ebp\n" \
" pushl %edi\n" \
OpenPOWER on IntegriCloud