Use READ_ONCE_NOCHECK() when reading the stack to prevent KASAN splats
when dump_stack() is used.
Fixes: 5b301409e8bc5d7fad ("UML: add support for KASAN under x86_64")
Signed-off-by: Vincent Whitchurch <vincent.whitchu...@axis.com>
---
arch/um/kernel/sysrq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index 7452f70d50d0..746715379f12 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -48,7 +48,8 @@ void show_stack(struct task_struct *task, unsigned long
*stack,
break;
if (i && ((i % STACKSLOTS_PER_LINE) == 0))
pr_cont("\n");
- pr_cont(" %08lx", *stack++);
+ pr_cont(" %08lx", READ_ONCE_NOCHECK(*stack));
+ stack++;
}
printk("%sCall Trace:\n", loglvl);
--
2.34.1
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