/* * Mausezahn - A fast versatile traffic generator * Copyright (C) 2008-2010 Herbert Haas * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License version 2 as published by the * Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License along with * this program; if not, see http://www.gnu.org/licenses/gpl-2.0.html * */ #include "mz.h" #include "cli.h" #include "mops.h" int cmd_dns_query(struct cli_def *cli, const char *command, char *argv[], int argc) { return CLI_OK; } int cmd_dns_answer(struct cli_def *cli, const char *command, char *argv[], int argc) { return CLI_OK; } int cmd_dns_ttl(struct cli_def *cli, const char *command, char *argv[], int argc) { return CLI_OK; } int cmd_dns_end(struct cli_def *cli, const char *command, char *argv[], int argc) { char prompt[16]; sprintf(prompt, "pkt-%i",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET, prompt); return CLI_OK; } acket-rx-pump-back net-next plumbingsTobias Klauser
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authorTheodore Ts'o <tytso@mit.edu>2016-07-05 20:01:52 -0400
committerTheodore Ts'o <tytso@mit.edu>2016-07-05 20:01:52 -0400
commit5b9554dc5bf008ae7f68a52e3d7e76c0920938a2 (patch)
tree0e77ba0fce0b9b68920ae7f7d1561ffcb690ba04
parentde9e9181bc066d63d78b768e95b5d949e2a8673a (diff)
ext4: validate s_reserved_gdt_blocks on mount
If s_reserved_gdt_blocks is extremely large, it's possible for ext4_init_block_bitmap(), which is called when ext4 sets up an uninitialized block bitmap, to corrupt random kernel memory. Add the same checks which e2fsck has --- it must never be larger than blocksize / sizeof(__u32) --- and then add a backup check in ext4_init_block_bitmap() in case the superblock gets modified after the file system is mounted. Reported-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@vger.kernel.org
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