Revision 2840f84f74035e5a535959d5f17269c69fa6edc5 authored by Steven Rostedt (VMware) on 11 December 2018, 04:58:01 UTC, committed by Steven Rostedt (VMware) on 11 December 2018, 18:50:28 UTC
The following commands will cause a memory leak:

 # cd /sys/kernel/tracing
 # mkdir instances/foo
 # echo schedule > instance/foo/set_ftrace_filter
 # rmdir instances/foo

The reason is that the hashes that hold the filters to set_ftrace_filter and
set_ftrace_notrace are not freed if they contain any data on the instance
and the instance is removed.

Found by kmemleak detector.

Cc: stable@vger.kernel.org
Fixes: 591dffdade9f ("ftrace: Allow for function tracing instance to filter functions")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 parent 3cec638
Raw File
ripemd.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Common values for RIPEMD algorithms
 */

#ifndef _CRYPTO_RMD_H
#define _CRYPTO_RMD_H

#define RMD128_DIGEST_SIZE      16
#define RMD128_BLOCK_SIZE       64

#define RMD160_DIGEST_SIZE      20
#define RMD160_BLOCK_SIZE       64

#define RMD256_DIGEST_SIZE      32
#define RMD256_BLOCK_SIZE       64

#define RMD320_DIGEST_SIZE      40
#define RMD320_BLOCK_SIZE       64

/* initial values  */
#define RMD_H0  0x67452301UL
#define RMD_H1  0xefcdab89UL
#define RMD_H2  0x98badcfeUL
#define RMD_H3  0x10325476UL
#define RMD_H4  0xc3d2e1f0UL
#define RMD_H5  0x76543210UL
#define RMD_H6  0xfedcba98UL
#define RMD_H7  0x89abcdefUL
#define RMD_H8  0x01234567UL
#define RMD_H9  0x3c2d1e0fUL

/* constants */
#define RMD_K1  0x00000000UL
#define RMD_K2  0x5a827999UL
#define RMD_K3  0x6ed9eba1UL
#define RMD_K4  0x8f1bbcdcUL
#define RMD_K5  0xa953fd4eUL
#define RMD_K6  0x50a28be6UL
#define RMD_K7  0x5c4dd124UL
#define RMD_K8  0x6d703ef3UL
#define RMD_K9  0x7a6d76e9UL

#endif
back to top