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(parent: f8bef5c) | patch
um: Prevent KASAN splats in dump_stack()
authorVincent Whitchurch <vincent.whitchurch@axis.com>
Wed, 7 Sep 2022 10:05:33 +0000 (12:05 +0200)
committerRichard Weinberger <richard@nod.at>
Mon, 19 Sep 2022 20:58:48 +0000 (22:58 +0200)
commit46d5eb1839fdbdeecc6119f9c61b9ec5288ca027
treec5aa840b7df45e1e8e4bc925a58ca43ef405eeeetree | snapshot
parentf8bef5c78b9c90fb897ed3eadef2e45ecfb6d85dcommit | diff
um: Prevent KASAN splats in dump_stack()

Use READ_ONCE_NOCHECK() when reading the stack to prevent KASAN splats
when dump_stack() is used.

Fixes: aef0df9e07f0588cf2 ("UML: add support for KASAN under x86_64")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
arch/um/kernel/sysrq.c diff | blob | history
Linux Kernel Source Tree.