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Revision 92a8109e4d3a34fb6b115c9098b51767dc933444 authored by Ross Lagerwall on 08 January 2019, 18:30:56 UTC, committed by Steve French on 11 January 2019, 13:14:40 UTC 
cifs: Limit memory used by lock request calls to a page
 
The code tries to allocate a contiguous buffer with a size supplied by
the server (maxBuf). This could fail if memory is fragmented since it
results in high order allocations for commonly used server
implementations. It is also wasteful since there are probably
few locks in the usual case. Limit the buffer to be no larger than a
page to avoid memory allocation failures due to fragmentation.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
1 parent 15bc77f
Raw File
verify_pefile.h 
/* PE Binary parser bits
 *
 * Copyright (C) 2014 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */

#include <crypto/pkcs7.h>
#include <crypto/hash_info.h>

struct pefile_context {
	unsigned	header_size;
	unsigned	image_checksum_offset;
	unsigned	cert_dirent_offset;
	unsigned	n_data_dirents;
	unsigned	n_sections;
	unsigned	certs_size;
	unsigned	sig_offset;
	unsigned	sig_len;
	const struct section_header *secs;

	/* PKCS#7 MS Individual Code Signing content */
	const void	*digest;		/* Digest */
	unsigned	digest_len;		/* Digest length */
	const char	*digest_algo;		/* Digest algorithm */
};

#define kenter(FMT, ...)					\
	pr_devel("==> %s("FMT")\n", __func__, ##__VA_ARGS__)
#define kleave(FMT, ...) \
	pr_devel("<== %s()"FMT"\n", __func__, ##__VA_ARGS__)

/*
 * mscode_parser.c
 */
extern int mscode_parse(void *_ctx, const void *content_data, size_t data_len,
			size_t asn1hdrlen);
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