REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.2/23725 is trying to acquire lock: 000000005ac00f4e (sb_writers#17){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] 000000005ac00f4e (sb_writers#17){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 but task is already holding lock: 00000000dd727fda (&sbi->lock){+.+.}, at: reiserfs_write_lock+0x75/0xf0 fs/reiserfs/lock.c:27 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&sbi->lock){+.+.}: reiserfs_write_lock+0x75/0xf0 fs/reiserfs/lock.c:27 reiserfs_lookup+0x171/0x490 fs/reiserfs/namei.c:363 __lookup_slow+0x246/0x4a0 fs/namei.c:1672 lookup_one_len+0x163/0x190 fs/namei.c:2544 reiserfs_lookup_privroot+0x92/0x280 fs/reiserfs/xattr.c:970 reiserfs_fill_super+0x1f12/0x2d80 fs/reiserfs/super.c:2187 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&type->i_mutex_dir_key#11){++++}: inode_lock include/linux/fs.h:748 [inline] do_last fs/namei.c:3324 [inline] path_openat+0x1071/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (sb_writers#17){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x6e/0x2a0 fs/super.c:1366 sb_start_write include/linux/fs.h:1579 [inline] mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 reiserfs_ioctl+0x1a7/0x9a0 fs/reiserfs/ioctl.c:110 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: sb_writers#17 --> &type->i_mutex_dir_key#11 --> &sbi->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sbi->lock); lock(&type->i_mutex_dir_key#11); lock(&sbi->lock); lock(sb_writers#17); *** DEADLOCK *** 1 lock held by syz-executor.2/23725: #0: 00000000dd727fda (&sbi->lock){+.+.}, at: reiserfs_write_lock+0x75/0xf0 fs/reiserfs/lock.c:27 stack backtrace: CPU: 1 PID: 23725 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2420 [inline] __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x6e/0x2a0 fs/super.c:1366 sb_start_write include/linux/fs.h:1579 [inline] mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 reiserfs_ioctl+0x1a7/0x9a0 fs/reiserfs/ioctl.c:110 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f444348e0a9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4441a00168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f44435adf80 RCX: 00007f444348e0a9 RDX: 0000000020000380 RSI: 0000000040087602 RDI: 0000000000000004 RBP: 00007f44434e9ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe2a2941ef R14: 00007f4441a00300 R15: 0000000000022000 REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal REISERFS (device loop2): using ordered data mode reiserfs: using flush barriers REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal REISERFS (device loop2): using ordered data mode reiserfs: using flush barriers REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal REISERFS (device loop2): using ordered data mode reiserfs: using flush barriers REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. print_req_error: 98 callbacks suppressed print_req_error: I/O error, dev loop2, sector 608 print_req_error: I/O error, dev loop2, sector 608 print_req_error: I/O error, dev loop2, sector 208 print_req_error: I/O error, dev loop2, sector 609 print_req_error: I/O error, dev loop2, sector 610 print_req_error: I/O error, dev loop2, sector 208 print_req_error: I/O error, dev loop2, sector 209 print_req_error: I/O error, dev loop2, sector 210 buffer_io_error: 91 callbacks suppressed Buffer I/O error on dev loop2p3, logical block 10, async page read print_req_error: I/O error, dev loop2, sector 211 Buffer I/O error on dev loop2p3, logical block 11, async page read print_req_error: I/O error, dev loop2, sector 212 Buffer I/O error on dev loop2p3, logical block 12, async page read Buffer I/O error on dev loop2p3, logical block 13, async page read Buffer I/O error on dev loop2p3, logical block 14, async page read Buffer I/O error on dev loop2p3, logical block 15, async page read Buffer I/O error on dev loop2p2, logical block 11, async page read Buffer I/O error on dev loop2p2, logical block 12, async page read Buffer I/O error on dev loop2p2, logical block 13, async page read Buffer I/O error on dev loop2p2, logical block 14, async page read bridge0: port 2(bridge_slave_1) entered disabled state bridge0: port 1(bridge_slave_0) entered disabled state IPVS: ftp: loaded support on port[0] = 21 device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state IPVS: ftp: loaded support on port[0] = 21 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. IPVS: ftp: loaded support on port[0] = 21 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. IPVS: ftp: loaded support on port[0] = 21 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root iso9660: Corrupted directory entry in block 0 of inode 1920 IPVS: ftp: loaded support on port[0] = 21 ISO 9660 Extensions: Microsoft Joliet Level 3 print_req_error: 188 callbacks suppressed print_req_error: I/O error, dev loop2, sector 408 print_req_error: I/O error, dev loop2, sector 208 ISOFS: changing to secondary root iso9660: Corrupted directory entry in block 0 of inode 1920 print_req_error: I/O error, dev loop2, sector 208 buffer_io_error: 161 callbacks suppressed Buffer I/O error on dev loop2p3, logical block 8, async page read print_req_error: I/O error, dev loop2, sector 209 Buffer I/O error on dev loop2p3, logical block 9, async page read print_req_error: I/O error, dev loop2, sector 210 Buffer I/O error on dev loop2p3, logical block 10, async page read print_req_error: I/O error, dev loop2, sector 211 Buffer I/O error on dev loop2p3, logical block 11, async page read print_req_error: I/O error, dev loop2, sector 408 Buffer I/O error on dev loop2p7, logical block 8, async page read print_req_error: I/O error, dev loop2, sector 409 Buffer I/O error on dev loop2p7, logical block 9, async page read print_req_error: I/O error, dev loop2, sector 410 Buffer I/O error on dev loop2p7, logical block 10, async page read print_req_error: I/O error, dev loop2, sector 411 Buffer I/O error on dev loop2p7, logical block 11, async page read Buffer I/O error on dev loop2p7, logical block 12, async page read Buffer I/O error on dev loop2p7, logical block 13, async page read IPVS: ftp: loaded support on port[0] = 21 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root ISOFS: changing to secondary root iso9660: Corrupted directory entry in block 0 of inode 1920 iso9660: Corrupted directory entry in block 0 of inode 1920 ISO 9660 Extensions: Microsoft Joliet Level 3 IPVS: ftp: loaded support on port[0] = 21 ISOFS: changing to secondary root iso9660: Corrupted directory entry in block 0 of inode 1920 ISO 9660 Extensions: Microsoft Joliet Level 3 IPVS: ftp: loaded support on port[0] = 21 ISOFS: changing to secondary root iso9660: Corrupted directory entry in block 0 of inode 1920 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root iso9660: Corrupted directory entry in block 0 of inode 1920 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 device macvlan1 entered promiscuous mode kauditd_printk_skb: 2 callbacks suppressed audit: type=1800 audit(1672151577.507:165): pid=24732 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="sda1" ino=15708 res=0 device veth1_virt_wifi entered promiscuous mode