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| author | Andrey Konovalov <andreyknvl@google.com> | 2022-03-25 04:12:23 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 05:06:49 +0300 |
| commit | 16347c31890375d2a7eb9efb01d2baac28742de3 (patch) | |
| tree | bb0192ce321ec488afff114985ddcb8c9ed09abc /mm/kasan | |
| parent | 0f9b35f38318d21470975bec61e0e93b4aab5c3c (diff) | |
| download | linux-16347c31890375d2a7eb9efb01d2baac28742de3.tar.xz | |
kasan: improve stack frame info in reports
- Print at least task name and id for reports affecting allocas
(get_address_stack_frame_info() does not support them).
- Capitalize first letter of each sentence.
Link: https://lkml.kernel.org/r/aa613f097c12f7b75efb17f2618ae00480fb4bc3.1646237226.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/kasan')
| -rw-r--r-- | mm/kasan/report_generic.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/mm/kasan/report_generic.c b/mm/kasan/report_generic.c index 3751391ff11a..7e03cca569a7 100644 --- a/mm/kasan/report_generic.c +++ b/mm/kasan/report_generic.c @@ -180,7 +180,7 @@ static void print_decoded_frame_descr(const char *frame_descr) return; pr_err("\n"); - pr_err("this frame has %lu %s:\n", num_objects, + pr_err("This frame has %lu %s:\n", num_objects, num_objects == 1 ? "object" : "objects"); while (num_objects--) { @@ -266,13 +266,14 @@ void kasan_print_address_stack_frame(const void *addr) if (WARN_ON(!object_is_on_stack(addr))) return; + pr_err("The buggy address belongs to stack of task %s/%d\n", + current->comm, task_pid_nr(current)); + if (!get_address_stack_frame_info(addr, &offset, &frame_descr, &frame_pc)) return; - pr_err("\n"); - pr_err("addr %px is located in stack of task %s/%d at offset %lu in frame:\n", - addr, current->comm, task_pid_nr(current), offset); + pr_err(" and is located at offset %lu in frame:\n", offset); pr_err(" %pS\n", frame_pc); if (!frame_descr) |