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Revision ef15ddeeb6bee87c044bf7754fac524545bf71e8 authored by Aleksandr Mishin on 28 March 2024, 16:55:05 UTC, committed by David S. Miller on 03 April 2024, 10:00:33 UTC 
octeontx2-af: Add array index check
 
In rvu_map_cgx_lmac_pf() the 'iter', which is used as an array index, can reach
value (up to 14) that exceed the size (MAX_LMAC_COUNT = 8) of the array.
Fix this bug by adding 'iter' value check.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 91c6945ea1f9 ("octeontx2-af: cn10k: Add RPM MAC support")
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent c53fe72
Raw File
sysdep.c 
/*
 *  linux/fs/hfs/sysdep.c
 *
 * Copyright (C) 1996  Paul H. Hargrove
 * (C) 2003 Ardis Technologies <roman@ardistech.com>
 * This file may be distributed under the terms of the GNU General Public License.
 *
 * This file contains the code to do various system dependent things.
 */

#include <linux/namei.h>
#include "hfs_fs.h"

/* dentry case-handling: just lowercase everything */

static int hfs_revalidate_dentry(struct dentry *dentry, unsigned int flags)
{
	struct inode *inode;
	int diff;

	if (flags & LOOKUP_RCU)
		return -ECHILD;

	inode = d_inode(dentry);
	if(!inode)
		return 1;

	/* fix up inode on a timezone change */
	diff = sys_tz.tz_minuteswest * 60 - HFS_I(inode)->tz_secondswest;
	if (diff) {
		struct timespec64 ts = inode_get_ctime(inode);

		inode_set_ctime(inode, ts.tv_sec + diff, ts.tv_nsec);
		ts = inode_get_atime(inode);
		inode_set_atime(inode, ts.tv_sec + diff, ts.tv_nsec);
		ts = inode_get_mtime(inode);
		inode_set_mtime(inode, ts.tv_sec + diff, ts.tv_nsec);
		HFS_I(inode)->tz_secondswest += diff;
	}
	return 1;
}

const struct dentry_operations hfs_dentry_operations =
{
	.d_revalidate	= hfs_revalidate_dentry,
	.d_hash		= hfs_hash_dentry,
	.d_compare	= hfs_compare_dentry,
};
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