Jaegeuk Kim eab3a34122 f2fs: give message and set need_fsck given broken node id ... commit a4f843bd00 upstream. syzbot hit the following crash on upstream commit 83beed7b2b (Fri Apr 20 17:56:32 2018 +0000) Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=d154ec99402c6f628887 C reproducer: https://syzkaller.appspot.com/x/repro.c?id=5414336294027264 syzkaller reproducer: https://syzkaller.appspot.com/x/repro.syz?id=5471683234234368 Raw console output: https://syzkaller.appspot.com/x/log.txt?id=5436660795834368 Kernel config: https://syzkaller.appspot.com/x/.config?id=1808800213120130118 compiler: gcc (GCC) 8.0.1 20180413 (experimental) IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+d154ec99402c6f628887@syzkaller.appspotmail.com It will help syzbot understand when the bug is fixed. See footer for details. If you forward the report, please keep this part and the footer. F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop0): invalid crc value ------------[ cut here ]------------ kernel BUG at fs/f2fs/node.c:1185! invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 4549 Comm: syzkaller704305 Not tainted 4.17.0-rc1+ #10 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__get_node_page+0xb68/0x16e0 fs/f2fs/node.c:1185 RSP: 0018:ffff8801d960e820 EFLAGS: 00010293 RAX: ffff8801d88205c0 RBX: 0000000000000003 RCX: ffffffff82f6cc06 RDX: 0000000000000000 RSI: ffffffff82f6d5e8 RDI: 0000000000000004 RBP: ffff8801d960ec30 R08: ffff8801d88205c0 R09: ffffed003b5e46c2 R10: 0000000000000003 R11: 0000000000000003 R12: ffff8801a86e00c0 R13: 0000000000000001 R14: ffff8801a86e0530 R15: ffff8801d9745240 FS: 000000000072c880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3d403209b8 CR3: 00000001d8f3f000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: get_node_page fs/f2fs/node.c:1237 [inline] truncate_xattr_node+0x152/0x2e0 fs/f2fs/node.c:1014 remove_inode_page+0x200/0xaf0 fs/f2fs/node.c:1039 f2fs_evict_inode+0xe86/0x1710 fs/f2fs/inode.c:547 evict+0x4a6/0x960 fs/inode.c:557 iput_final fs/inode.c:1519 [inline] iput+0x62d/0xa80 fs/inode.c:1545 f2fs_fill_super+0x5f4e/0x7bf0 fs/f2fs/super.c:2849 mount_bdev+0x30c/0x3e0 fs/super.c:1164 f2fs_mount+0x34/0x40 fs/f2fs/super.c:3020 mount_fs+0xae/0x328 fs/super.c:1267 vfs_kern_mount.part.34+0xd4/0x4d0 fs/namespace.c:1037 vfs_kern_mount fs/namespace.c:1027 [inline] do_new_mount fs/namespace.c:2518 [inline] do_mount+0x564/0x3070 fs/namespace.c:2848 ksys_mount+0x12d/0x140 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3075 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x443dea RSP: 002b:00007ffcc7882368 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000c00 RCX: 0000000000443dea RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffcc7882370 RBP: 0000000000000003 R08: 0000000020016a00 R09: 000000000000000a R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000004 R13: 0000000000402ce0 R14: 0000000000000000 R15: 0000000000000000 RIP: __get_node_page+0xb68/0x16e0 fs/f2fs/node.c:1185 RSP: ffff8801d960e820 ---[ end trace 4edbeb71f002bb76 ]--- Reported-and-tested-by: syzbot+d154ec99402c6f628887@syzkaller.appspotmail.com Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-07-17 11:39:33 +02:00
..
acl.c	f2fs: preserve i_mode if __f2fs_set_acl() fails	2017-07-28 17:48:54 -07:00
acl.h	f2fs: remove dead code f2fs_check_acl	2016-09-14 16:52:36 -07:00
checkpoint.c	f2fs: fix to clear CP_TRIMMED_FLAG	2018-05-30 07:52:33 +02:00
data.c	for-f2fs-4.14	2017-09-12 20:05:58 -07:00
debug.c	f2fs: show available_nids in f2fs/status	2017-05-03 10:04:57 -07:00
dir.c	f2fs: clear radix tree dirty tag of pages whose dirty flag is cleared	2017-09-11 21:32:38 -07:00
extent_cache.c	f2fs: fix to check extent cache in f2fs_drop_extent_tree	2018-05-30 07:52:33 +02:00
f2fs.h	f2fs: give message and set need_fsck given broken node id	2018-07-17 11:39:33 +02:00
file.c	f2fs: truncate preallocated blocks in error case	2018-07-11 16:29:21 +02:00
gc.c	f2fs: avoid hungtask when GC encrypted block if io_bits is set	2018-04-26 11:02:09 +02:00
gc.h	f2fs: fix potential overflow when adjusting GC cycle	2017-08-15 10:40:14 -07:00
hash.c	f2fs: check entire encrypted bigname when finding a dentry	2017-05-04 11:44:35 -04:00
inline.c	f2fs: clear radix tree dirty tag of pages whose dirty flag is cleared	2017-09-11 21:32:38 -07:00
inode.c	f2fs: give message and set need_fsck given broken node id	2018-07-17 11:39:33 +02:00
Kconfig	f2fs: add mount option to select fault injection ratio	2016-05-07 10:32:22 -07:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
namei.c	do d_instantiate/unlock_new_inode combinations safely	2018-05-30 07:51:47 +02:00
node.c	f2fs: give message and set need_fsck given broken node id	2018-07-17 11:39:33 +02:00
node.h	f2fs: simplify the way of calulating next nat address	2017-07-04 02:11:34 -07:00
recovery.c	f2fs: check hot_data for roll-forward recovery	2017-08-21 15:55:06 -07:00
segment.c	f2fs: fix heap mode to reset it back	2018-04-19 08:56:20 +02:00
segment.h	f2fs: speed up gc_urgent mode with SSR	2017-09-11 17:22:18 -07:00
shrinker.c	f2fs: avoid casted negative value as shrink count	2016-11-23 12:11:03 -08:00
super.c	f2fs: fix potential panic during fstrim	2017-10-03 08:06:05 -07:00
sysfs.c	f2fs: fix to show correct discard_granularity in sysfs	2017-09-12 10:02:47 -07:00
trace.c	f2fs: use set_page_private marcro in f2fs_trace_pid	2017-03-24 15:10:49 -04:00
trace.h
xattr.c	f2fs: avoid race in between read xattr & write xattr	2017-09-07 20:57:20 -07:00
xattr.h	f2fs: guard macro variables with braces	2017-04-10 19:48:10 -07:00