diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2020-08-18 16:57:43 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-09-01 10:58:04 +0300 |
| commit | 6333e8f73b834f54e395a056e6002403f0862c51 (patch) | |
| tree | e347bbf8a19d2efcdae91fdd8338c8b175ce4cd5 /kernel/kprobes.c | |
| parent | 9183c3f9ed710a8edf1a61e8a96d497258d26e08 (diff) | |
| download | linux-6333e8f73b834f54e395a056e6002403f0862c51.tar.xz | |
static_call: Avoid kprobes on inline static_call()s
Similar to how we disallow kprobes on any other dynamic text
(ftrace/jump_label) also disallow kprobes on inline static_call()s.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200818135804.744920586@infradead.org
Diffstat (limited to 'kernel/kprobes.c')
| -rw-r--r-- | kernel/kprobes.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 287b263c9cb9..67e6a8c18007 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -36,6 +36,7 @@ #include <linux/cpu.h> #include <linux/jump_label.h> #include <linux/perf_event.h> +#include <linux/static_call.h> #include <asm/sections.h> #include <asm/cacheflush.h> @@ -1634,6 +1635,7 @@ static int check_kprobe_address_safe(struct kprobe *p, if (!kernel_text_address((unsigned long) p->addr) || within_kprobe_blacklist((unsigned long) p->addr) || jump_label_text_reserved(p->addr, p->addr) || + static_call_text_reserved(p->addr, p->addr) || find_bug((unsigned long)p->addr)) { ret = -EINVAL; goto out; |