The patch titled
Subject: scripts-gdb-add-a-radix-tree-parser-v2
has been added to the -mm mm-nonmm-unstable branch. Its filename is
scripts-gdb-add-a-radix-tree-parser-v2.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/scripts-gdb-add-a-radix-tree-parser-v2.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Florian Fainelli <f.fainelli@xxxxxxxxx>
Subject: scripts-gdb-add-a-radix-tree-parser-v2
Date: Wed, 5 Apr 2023 15:27:43 -0700
guard against a NULL node in the while loop
Link: https://lkml.kernel.org/r/20230405222743.1191674-1-f.fainelli@xxxxxxxxx
Signed-off-by: Kieran Bingham <kieran.bingham@xxxxxxxxxx>
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Cc: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
Cc: Kieran Bingham <kbingham@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/gdb/linux/radixtree.py | 3 +++
1 file changed, 3 insertions(+)
--- a/scripts/gdb/linux/radixtree.py~scripts-gdb-add-a-radix-tree-parser-v2
+++ a/scripts/gdb/linux/radixtree.py
@@ -58,6 +58,9 @@ def lookup(root, index):
offset = (index >> node['shift']) & constants.LX_RADIX_TREE_MAP_MASK
slot = node['slots'][offset]
+ if slot == 0:
+ return None
+
node = slot.cast(node.type.pointer()).dereference()
if node == 0:
return None
_
Patches currently in -mm which might be from f.fainelli@xxxxxxxxx are
scripts-gdb-add-a-radix-tree-parser-v2.patch
