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KVM: s390: Don't use %pK through tracepoints

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[ Upstream commit 6c9567e0850be2f0f94ab64fa6512413fd1a1eb1 ]

Restricted pointers ("%pK") are not meant to be used through TP_format().
It can unintentionally expose security sensitive, raw pointer values.

Use regular pointer formatting instead.

Link: https://lore.kernel.org/lkml/20250113171731-dc10e3c1-da64-4af0-b767-7c7070468023@linutronix.de/
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Michael Mueller <mimu@linux.ibm.com>
Link: https://lore.kernel.org/r/20250217-restricted-pointers-s390-v1-1-0e4ace75d8aa@linutronix.de
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Message-ID: <20250217-restricted-pointers-s390-v1-1-0e4ace75d8aa@linutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thomas Weißschuh 2025-02-17 14:13:56 +01:00 • committed by Greg Kroah-Hartman
commit 1249ee3538
1 changed files with 2 additions and 2 deletions
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4
arch/s390/kvm/trace-s390.h
View file

@ -56,7 +56,7 @@ TRACE_EVENT(kvm_s390_create_vcpu,
__entry->sie_block = sie_block;
),
TP_printk("create cpu %d at 0x%pK, sie block at 0x%pK",
TP_printk("create cpu %d at 0x%p, sie block at 0x%p",
__entry->id, __entry->vcpu, __entry->sie_block)
);
@ -255,7 +255,7 @@ TRACE_EVENT(kvm_s390_enable_css,
__entry->kvm = kvm;
),
TP_printk("enabling channel I/O support (kvm @ %pK)\n",
TP_printk("enabling channel I/O support (kvm @ %p)\n",
__entry->kvm)
);