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Revision f2ebf8ffe7af10bff02d34addbebd9199de65ed2 authored by Riccardo Mancini on 15 July 2021, 16:07:21 UTC, committed by Arnaldo Carvalho de Melo on 15 July 2021, 20:34:39 UTC 
perf trace: Free syscall->arg_fmt
 
ASan reports several memory leaks running:

  # perf test "88: Check open filename arg using perf trace + vfs_getname"

The second of these leaks is caused by the arg_fmt field of syscall not
being deallocated.

This patch adds a new function syscall__exit which is called on all
syscalls.table entries in trace__exit, which will free the arg_fmt
field.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/d68f25c043d30464ac9fa79c3399e18f429bca82.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
1 parent 6c7f0ab
Raw File
system_certificates.S 
/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/export.h>
#include <linux/init.h>

	__INITRODATA

	.align 8
	.globl system_certificate_list
system_certificate_list:
__cert_list_start:
__module_cert_start:
#if defined(CONFIG_MODULE_SIG) || (defined(CONFIG_IMA_APPRAISE_MODSIG) \
			       && defined(CONFIG_MODULES))
	.incbin "certs/signing_key.x509"
#endif
__module_cert_end:
	.incbin "certs/x509_certificate_list"
__cert_list_end:

#ifdef CONFIG_SYSTEM_EXTRA_CERTIFICATE
	.globl system_extra_cert
	.size system_extra_cert, CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE
system_extra_cert:
	.fill CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE, 1, 0

	.align 4
	.globl system_extra_cert_used
system_extra_cert_used:
	.int 0

#endif /* CONFIG_SYSTEM_EXTRA_CERTIFICATE */

	.align 8
	.globl system_certificate_list_size
system_certificate_list_size:
#ifdef CONFIG_64BIT
	.quad __cert_list_end - __cert_list_start
#else
	.long __cert_list_end - __cert_list_start
#endif

	.align 8
	.globl module_cert_size
module_cert_size:
#ifdef CONFIG_64BIT
	.quad __module_cert_end - __module_cert_start
#else
	.long __module_cert_end - __module_cert_start
#endif
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