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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2021-07-07 01:19:43 +0200
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2021-07-07 01:19:43 +0200
commitd900385139e5aa8d584dee92c87bb85d0226253e (patch)
tree26aa082f242221c535f2d8aa03b0c314c713e8ea /arch/x86/kernel/kprobes/core.c
parent56168452b2a2fa8b4efc664d9fcb08536486a1ba (diff)
parent200ecf5055dfba12b9bff6984830a7cdddee8ab1 (diff)
Merge tag 'v4.4.274' into toradex_vf_4.4-next
Linux 4.4.274
Diffstat (limited to 'arch/x86/kernel/kprobes/core.c')
-rw-r--r--arch/x86/kernel/kprobes/core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 5a6cb30b1c62..ebd4da00a56e 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -1014,6 +1014,11 @@ int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
* So clear it by resetting the current kprobe:
*/
regs->flags &= ~X86_EFLAGS_TF;
+ /*
+ * Since the single step (trap) has been cancelled,
+ * we need to restore BTF here.
+ */
+ restore_btf();
/*
* If the TF flag was set before the kprobe hit,