The patch titled
Subject: mm/kmemleak: use %pK to display kernel pointers in backtrace
has been added to the -mm mm-unstable branch. Its filename is
mm-kmemleak-use-%pk-to-display-kernel-pointers-in-backtrace.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-kmemleak-use-%pk-to-display-kernel-pointers-in-backtrace.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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From: Clément Léger <clement.leger@xxxxxxxxxxx>
Subject: mm/kmemleak: use %pK to display kernel pointers in backtrace
Date: Tue, 8 Nov 2022 10:43:22 +0100
Currently, %p is used to display kernel pointers in backtrace which result
in a hashed value that is not usable to correlate the address for debug.
Use %pK which will respect the kptr_restrict configuration value and thus
allow to extract meaningful information from the backtrace.
Link: https://lkml.kernel.org/r/20221108094322.73492-1-clement.leger@xxxxxxxxxxx
Signed-off-by: Clément Léger <clement.leger@xxxxxxxxxxx>
Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kmemleak.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/kmemleak.c~mm-kmemleak-use-%pk-to-display-kernel-pointers-in-backtrace
+++ a/mm/kmemleak.c
@@ -361,7 +361,7 @@ static void print_unreferenced(struct se
for (i = 0; i < nr_entries; i++) {
void *ptr = (void *)entries[i];
- warn_or_seq_printf(seq, " [<%p>] %pS\n", ptr, ptr);
+ warn_or_seq_printf(seq, " [<%pK>] %pS\n", ptr, ptr);
}
}
_
Patches currently in -mm which might be from clement.leger@xxxxxxxxxxx are
mm-kmemleak-use-%pk-to-display-kernel-pointers-in-backtrace.patch
