Commit 6c9567e0 authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Janosch Frank
Browse files

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

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: default avatarThomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: default avatarMichael Mueller <mimu@linux.ibm.com>
Link: https://lore.kernel.org/r/20250217-restricted-pointers-s390-v1-1-0e4ace75d8aa@linutronix.de


Signed-off-by: default avatarJanosch Frank <frankja@linux.ibm.com>
Message-ID: <20250217-restricted-pointers-s390-v1-1-0e4ace75d8aa@linutronix.de>
parent a64dcfb4

arch/s390/kvm/trace-s390.h

+2 −2
Original line number Diff line number Diff line
@@ -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)

	);