Chao Yu 43ce0a0bda f2fs: fix to avoid use f2fs_bug_on() in f2fs_new_node_page()
[ Upstream commit 141170b759e03958f296033bb7001be62d1d363b ]

As Dipanjan Das <mail.dipanjan.das@gmail.com> reported, syzkaller
found a f2fs bug as below:

RIP: 0010:f2fs_new_node_page+0x19ac/0x1fc0 fs/f2fs/node.c:1295
Call Trace:
 write_all_xattrs fs/f2fs/xattr.c:487 [inline]
 __f2fs_setxattr+0xe76/0x2e10 fs/f2fs/xattr.c:743
 f2fs_setxattr+0x233/0xab0 fs/f2fs/xattr.c:790
 f2fs_xattr_generic_set+0x133/0x170 fs/f2fs/xattr.c:86
 __vfs_setxattr+0x115/0x180 fs/xattr.c:182
 __vfs_setxattr_noperm+0x125/0x5f0 fs/xattr.c:216
 __vfs_setxattr_locked+0x1cf/0x260 fs/xattr.c:277
 vfs_setxattr+0x13f/0x330 fs/xattr.c:303
 setxattr+0x146/0x160 fs/xattr.c:611
 path_setxattr+0x1a7/0x1d0 fs/xattr.c:630
 __do_sys_lsetxattr fs/xattr.c:653 [inline]
 __se_sys_lsetxattr fs/xattr.c:649 [inline]
 __x64_sys_lsetxattr+0xbd/0x150 fs/xattr.c:649
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

NAT entry and nat bitmap can be inconsistent, e.g. one nid is free
in nat bitmap, and blkaddr in its NAT entry is not NULL_ADDR, it
may trigger BUG_ON() in f2fs_new_node_page(), fix it.

Reported-by: Dipanjan Das <mail.dipanjan.das@gmail.com>
Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-25 11:45:52 +02:00
..
2022-06-17 06:03:30 +09:00
2022-05-09 16:21:44 -04:00
2022-05-09 16:21:45 -04:00
2022-05-09 16:21:45 -04:00
2022-05-02 11:23:49 -05:00
2022-06-03 10:34:34 -07:00
2022-05-24 19:55:07 -07:00
2022-05-09 16:21:45 -04:00
2022-05-24 19:55:07 -07:00
2022-05-09 23:12:53 -04:00
2022-05-09 16:21:46 -04:00
2022-05-23 20:24:12 -05:00
2022-05-24 19:55:07 -07:00
2022-05-24 19:55:07 -07:00
2022-05-24 19:55:07 -07:00
2022-03-28 17:29:53 -07:00
2022-05-27 15:49:30 -07:00
2022-05-09 18:20:49 -07:00
2022-06-04 18:52:00 -07:00
2022-04-01 19:35:56 -07:00
2022-08-17 15:14:20 +02:00
2022-04-19 10:19:02 -07:00
2022-05-22 21:03:01 +01:00
2022-04-17 19:49:59 -06:00