The patch titled
Subject: kasan: print virtual mapping info in reports
has been removed from the -mm tree. Its filename was
kasan-print-virtual-mapping-info-in-reports.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Subject: kasan: print virtual mapping info in reports
Print virtual mapping range and its creator in reports affecting virtual
mappings.
Also get physical page pointer for such mappings, so page information gets
printed as well.
Link: https://lkml.kernel.org/r/6ebb11210ae21253198e264d4bb0752c1fad67d7.1645548178.git.andreyknvl@xxxxxxxxxx
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Dmitriy Vyukov <dvyukov@xxxxxxxxxx>
Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/report.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
--- a/mm/kasan/report.c~kasan-print-virtual-mapping-info-in-reports
+++ a/mm/kasan/report.c
@@ -260,8 +260,21 @@ static void print_address_description(vo
pr_err(" %pS\n", addr);
}
+ if (is_vmalloc_addr(addr)) {
+ struct vm_struct *va = find_vm_area(addr);
+
+ if (va) {
+ pr_err("The buggy address belongs to the virtual mapping at\n"
+ " [%px, %px) created by:\n"
+ " %pS\n",
+ va->addr, va->addr + va->size, va->caller);
+
+ page = vmalloc_to_page(page);
+ }
+ }
+
if (page) {
- pr_err("The buggy address belongs to the page:\n");
+ pr_err("The buggy address belongs to the physical page:\n");
dump_page(page, "kasan: bad access detected");
}
_
Patches currently in -mm which might be from andreyknvl@xxxxxxxxxx are
stacktrace-add-interface-based-on-shadow-call-stack.patch
arm64-scs-save-scs_sp-values-per-cpu-when-switching-stacks.patch
arm64-implement-stack_trace_save_shadow.patch
kasan-use-stack_trace_save_shadow.patch
