./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1881494768 <...> Warning: Permanently added '10.128.0.67' (ECDSA) to the list of known hosts. execve("./syz-executor1881494768", ["./syz-executor1881494768"], 0x7ffd34723200 /* 10 vars */) = 0 brk(NULL) = 0x55555630b000 brk(0x55555630bc40) = 0x55555630bc40 arch_prctl(ARCH_SET_FS, 0x55555630b300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1881494768", 4096) = 28 brk(0x55555632cc40) = 0x55555632cc40 brk(0x55555632d000) = 0x55555632d000 mprotect(0x7f1a15040000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 memfd_create("syzkaller", 0) = 3 ftruncate(3, 4194320) = 0 pwrite64(3, "\x8c\xb6\x37", 3, 1) = 3 pwrite64(3, "\x00\x84\x09", 3, 4) = 3 pwrite64(3, "\xcf\x58\xf9\xb6\xb0\x97\x28\x72\x18\xce\x56\xf2\x50\xb4\x26\xfd\x15\x34\xa8\x24\x13\x97\xcf\xab\x6d\x88\x16\xfa\x4b\xb4\x5c\x3f\x9f\xdd\xf8\x76\xb2\x69\xc1\xe8\x59\xce\xbe\x21\xb7\xd9\x24\x4b\x1f\xd8\xf4\x11\xc2\xe7\x5b\x40\x44\x0e\x6e\x93\x65\x6e\xcb\xb4\x9b\xee\xac\x1c\x75\x71\x47\x8c\xa3\xc9\x9e\xc9\x07\x4a\xeb\xad\xf4\x46\x2d\x55\x73\x8c\xec\xdf\x1a\xe2\x86\x2f\x84\x19\x26\xf1\x5b\x27\x70\x6d"..., 205, 7) = 205 pwrite64(3, "\x00\x04\x00\x00\xec\x01\x00\x00\x13\x02\x00\x00\x12\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x01\x00\x00\x61\x1c\xad\x49\xe1\x00\x00\x00\x1e\x00\x00\x00\x00\x00\x00\x00\x00\x10\xcc\x03\x10\x00\x01\x00\x52\x65\x49\x73\x45\x72\x33\x46\x73\x00\x00\x00\x02\x00\x00\x00\x02\x00\x01\x00\x02\x00\x01\x02\x00\x00\x00\x00\x01\x00\x00\x00\x12\x31\x2a\x23\x12\x12\x33\x12\x33\x12\x31\x12\x34\x13\x41\x24"..., 128, 65536) = 128 pwrite64(3, "\x00\x00\x00\x00\x00\x00\x05\x00\x08\x00\x00\x00\x01\x10\x00\x00\x03\x10\x00\x48\xb2\x56\x07\x81\x8b\x96\xe2\x7e\xa5\x80\x19\x56\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9e\x08", 45, 65728) = 45 pwrite64(3, "\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x12\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x01\x00\x00\x61\x1c\xad\x49\xe1\x00\x00\x00\x1e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf4\x50\x98\x12\x2a\x16\x2b\x00\x17\x31\xda\x04\x98\x0e\x00\x00\x66\xd9\xca\x9b\x08\x8f\x7a\xfe\xe7\x42\xa2\xaa\xc9\x3d\x10\x58\x68\xc7\x2e\xdb"..., 185, 2170880) = 185 pwrite64(3, "\x01\x00\x02\x00\x5c\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x2c\x00\xd4\x0f\x01\x00\x01\x00\x00\x00\x02\x00\x00\x00\x01\x00\x00\x00\xf4\x01\x00\x00\x02\x00\x30\x00\xa4\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 96, 2174976) = 96 pwrite64(3, "\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x02\x00\x00\x00\x28\x00\x04\x00\x02\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x20\x00\x04\x00\x2e\x2e\x00\x00\x00\x00\x00\x00\x2e\x00\xe2\xff\x00\x00\x00\x00\xed\x41\x00\x00\x03\x00\x00\x3a\xc1\x65\x5f\x3a\xc1\x65\x5f\x3a\xc1\x65\xea\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf3\xff", 82, 2178976) = 82 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 mkdir("./file0", 0777) = 0 syzkaller login: [ 53.097168][ T3631] loop0: detected capacity change from 0 to 8192 [ 53.108398][ T3631] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 53.121445][ T3631] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 53.130970][ T3631] REISERFS (device loop0): using ordered data mode [ 53.137869][ T3631] reiserfs: using flush barriers mount("/dev/loop0", "./file0", "reiserfs", MS_NOSUID|MS_NOEXEC|MS_NOATIME|MS_RELATIME, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 close(3) = 0 open(".", O_RDONLY) = 3 ioctl(3, _IOC(_IOC_WRITE, 0x66, 0x8, 0x28), 0) = -1 EFAULT (Bad address) [ 53.144019][ T3631] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 53.161078][ T3631] REISERFS (device loop0): checking transaction log (loop0) [ 53.171002][ T3631] REISERFS (device loop0): Using rupasov hash to sort names [ 53.179222][ T3631] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 53.195776][ T3631] [ 53.198132][ T3631] ====================================================== [ 53.205149][ T3631] WARNING: possible circular locking dependency detected [ 53.212164][ T3631] 6.1.0-rc5-syzkaller-00015-g81e7cfa3a9eb #0 Not tainted [ 53.219177][ T3631] ------------------------------------------------------ [ 53.226170][ T3631] syz-executor188/3631 is trying to acquire lock: [ 53.232561][ T3631] ffffc90003bf10f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070 [ 53.242288][ T3631] [ 53.242288][ T3631] but task is already holding lock: [ 53.249633][ T3631] ffff888020f0a460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 53.258847][ T3631] [ 53.258847][ T3631] which lock already depends on the new lock. [ 53.258847][ T3631] [ 53.269231][ T3631] [ 53.269231][ T3631] the existing dependency chain (in reverse order) is: [ 53.278228][ T3631] [ 53.278228][ T3631] -> #2 (sb_writers#9){.+.+}-{0:0}: [ 53.285611][ T3631] lock_acquire+0x182/0x3c0 [ 53.290632][ T3631] sb_start_write+0x4d/0x1a0 [ 53.295737][ T3631] mnt_want_write_file+0x5a/0x1f0 [ 53.301274][ T3631] reiserfs_ioctl+0x16e/0x340 [ 53.306458][ T3631] __se_sys_ioctl+0xfb/0x170 [ 53.311555][ T3631] do_syscall_64+0x3d/0xb0 [ 53.316491][ T3631] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.322892][ T3631] [ 53.322892][ T3631] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 53.330086][ T3631] lock_acquire+0x182/0x3c0 [ 53.335095][ T3631] __mutex_lock_common+0x1bd/0x26e0 [ 53.340805][ T3631] mutex_lock_nested+0x17/0x20 [ 53.346078][ T3631] reiserfs_write_lock_nested+0x5b/0xd0 [ 53.352131][ T3631] do_journal_begin_r+0x34b/0x1070 [ 53.357764][ T3631] journal_begin+0x14b/0x350 [ 53.362888][ T3631] reiserfs_fill_super+0x172b/0x24a0 [ 53.368712][ T3631] mount_bdev+0x26c/0x3a0 [ 53.373558][ T3631] legacy_get_tree+0xea/0x180 [ 53.378748][ T3631] vfs_get_tree+0x88/0x270 [ 53.383681][ T3631] do_new_mount+0x289/0xad0 [ 53.388702][ T3631] __se_sys_mount+0x2d3/0x3c0 [ 53.393889][ T3631] do_syscall_64+0x3d/0xb0 [ 53.398817][ T3631] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.405222][ T3631] [ 53.405222][ T3631] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 53.413028][ T3631] validate_chain+0x1898/0x6ae0 [ 53.418386][ T3631] __lock_acquire+0x1292/0x1f60 [ 53.423746][ T3631] lock_acquire+0x182/0x3c0 [ 53.428757][ T3631] __mutex_lock_common+0x1bd/0x26e0 [ 53.434467][ T3631] mutex_lock_nested+0x17/0x20 [ 53.439743][ T3631] do_journal_begin_r+0x340/0x1070 [ 53.445361][ T3631] journal_begin+0x14b/0x350 [ 53.450458][ T3631] reiserfs_dirty_inode+0x108/0x230 [ 53.456170][ T3631] __mark_inode_dirty+0x1e7/0x600 [ 53.461703][ T3631] reiserfs_ioctl+0x293/0x340 [ 53.466888][ T3631] __se_sys_ioctl+0xfb/0x170 [ 53.471987][ T3631] do_syscall_64+0x3d/0xb0 [ 53.476910][ T3631] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.483311][ T3631] [ 53.483311][ T3631] other info that might help us debug this: [ 53.483311][ T3631] [ 53.493519][ T3631] Chain exists of: [ 53.493519][ T3631] &journal->j_mutex --> &sbi->lock --> sb_writers#9 [ 53.493519][ T3631] [ 53.506024][ T3631] Possible unsafe locking scenario: [ 53.506024][ T3631] [ 53.513455][ T3631] CPU0 CPU1 [ 53.518805][ T3631] ---- ---- [ 53.524152][ T3631] lock(sb_writers#9); [ 53.528298][ T3631] lock(&sbi->lock); [ 53.534781][ T3631] lock(sb_writers#9); [ 53.541448][ T3631] lock(&journal->j_mutex); [ 53.546032][ T3631] [ 53.546032][ T3631] *** DEADLOCK *** [ 53.546032][ T3631] [ 53.554158][ T3631] 1 lock held by syz-executor188/3631: [ 53.559599][ T3631] #0: ffff888020f0a460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 53.569259][ T3631] [ 53.569259][ T3631] stack backtrace: [ 53.575131][ T3631] CPU: 1 PID: 3631 Comm: syz-executor188 Not tainted 6.1.0-rc5-syzkaller-00015-g81e7cfa3a9eb #0 [ 53.585525][ T3631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 53.595570][ T3631] Call Trace: [ 53.598845][ T3631] [ 53.601767][ T3631] dump_stack_lvl+0x1b1/0x28e [ 53.606444][ T3631] ? nf_tcp_handle_invalid+0x62e/0x62e [ 53.611900][ T3631] ? print_circular_bug+0x13e/0x1c0 [ 53.617091][ T3631] check_noncircular+0x2cc/0x390 [ 53.622025][ T3631] ? add_chain_block+0x850/0x850 [ 53.626953][ T3631] ? lockdep_lock+0x102/0x290 [ 53.631624][ T3631] ? _find_first_zero_bit+0xe8/0x110 [ 53.636899][ T3631] validate_chain+0x1898/0x6ae0 [ 53.641751][ T3631] ? reacquire_held_locks+0x650/0x650 [ 53.647116][ T3631] ? __kernel_text_address+0x9/0x40 [ 53.652304][ T3631] ? unwind_get_return_address+0x48/0x80 [ 53.657925][ T3631] ? arch_stack_walk+0x98/0xe0 [ 53.662681][ T3631] ? stack_trace_save+0x104/0x1e0 [ 53.667697][ T3631] ? stack_trace_snprint+0xf0/0xf0 [ 53.672798][ T3631] ? check_noncircular+0x1aa/0x390 [ 53.677899][ T3631] ? add_chain_block+0x850/0x850 [ 53.682828][ T3631] ? lockdep_unlock+0x144/0x2e0 [ 53.687664][ T3631] ? lockdep_lock+0x290/0x290 [ 53.692328][ T3631] ? add_lock_to_list+0x1c7/0x2d0 [ 53.697346][ T3631] ? validate_chain+0x1478/0x6ae0 [ 53.702367][ T3631] ? reacquire_held_locks+0x650/0x650 [ 53.707728][ T3631] ? lockdep_unlock+0x144/0x2e0 [ 53.712569][ T3631] ? lockdep_lock+0x290/0x290 [ 53.717234][ T3631] ? add_lock_to_list+0x1c7/0x2d0 [ 53.722251][ T3631] ? validate_chain+0x1478/0x6ae0 [ 53.727273][ T3631] ? reacquire_held_locks+0x650/0x650 [ 53.732638][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 53.738258][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 53.744229][ T3631] ? __stack_depot_save+0x41c/0x4a0 [ 53.749417][ T3631] ? trace_lock_release+0x95/0x220 [ 53.754523][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.759537][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 53.765157][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 53.771137][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.776158][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 53.781777][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 53.787747][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.792507][ T3631] ? read_lock_is_recursive+0x10/0x10 [ 53.797871][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.802628][ T3631] ? __lock_acquire+0x1f60/0x1f60 [ 53.807648][ T3631] ? deref_stack_reg+0x17a/0x210 [ 53.812572][ T3631] ? preempt_count_add+0x8d/0x180 [ 53.817587][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.822603][ T3631] ? is_bpf_text_address+0x253/0x270 [ 53.827875][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.832894][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.837910][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 53.843533][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 53.849502][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.854260][ T3631] ? read_lock_is_recursive+0x10/0x10 [ 53.859627][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.864380][ T3631] ? __lock_acquire+0x1f60/0x1f60 [ 53.869393][ T3631] ? deref_stack_reg+0x17a/0x210 [ 53.874322][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.879333][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 53.884959][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 53.890931][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.895689][ T3631] ? read_lock_is_recursive+0x10/0x10 [ 53.901053][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.905806][ T3631] ? __lock_acquire+0x1f60/0x1f60 [ 53.910822][ T3631] ? deref_stack_reg+0x17a/0x210 [ 53.915749][ T3631] ? mark_lock+0x9a/0x350 [ 53.920067][ T3631] ? __lock_acquire+0x1292/0x1f60 [ 53.925081][ T3631] ? mark_lock+0x9a/0x350 [ 53.929401][ T3631] __lock_acquire+0x1292/0x1f60 [ 53.934248][ T3631] lock_acquire+0x182/0x3c0 [ 53.938738][ T3631] ? do_journal_begin_r+0x340/0x1070 [ 53.944013][ T3631] ? read_lock_is_recursive+0x10/0x10 [ 53.949377][ T3631] ? __might_sleep+0xc0/0xc0 [ 53.953954][ T3631] ? reiserfs_write_unlock_nested+0xd0/0x120 [ 53.959926][ T3631] ? __lock_acquire+0x1f60/0x1f60 [ 53.964942][ T3631] __mutex_lock_common+0x1bd/0x26e0 [ 53.970132][ T3631] ? do_journal_begin_r+0x340/0x1070 [ 53.975421][ T3631] ? __mutex_unlock_slowpath+0x222/0x770 [ 53.981063][ T3631] ? do_journal_begin_r+0x340/0x1070 [ 53.986348][ T3631] ? mutex_unlock+0x10/0x10 [ 53.990852][ T3631] ? mutex_lock_io_nested+0x60/0x60 [ 53.996055][ T3631] mutex_lock_nested+0x17/0x20 [ 54.000815][ T3631] do_journal_begin_r+0x340/0x1070 [ 54.005928][ T3631] ? journal_join_abort+0xe0/0xe0 [ 54.010943][ T3631] ? print_irqtrace_events+0x220/0x220 [ 54.016393][ T3631] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 54.022188][ T3631] ? lockdep_hardirqs_on+0x8d/0x130 [ 54.027395][ T3631] journal_begin+0x14b/0x350 [ 54.031985][ T3631] reiserfs_dirty_inode+0x108/0x230 [ 54.037185][ T3631] ? reiserfs_free_inode+0x20/0x20 [ 54.042292][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 54.047921][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 54.053915][ T3631] ? current_time+0x1d7/0x300 [ 54.058588][ T3631] ? reiserfs_free_inode+0x20/0x20 [ 54.063695][ T3631] __mark_inode_dirty+0x1e7/0x600 [ 54.068714][ T3631] ? __might_fault+0xb2/0x110 [ 54.073383][ T3631] reiserfs_ioctl+0x293/0x340 [ 54.078051][ T3631] ? __se_sys_ioctl+0xf0/0x170 [ 54.082813][ T3631] ? reiserfs_unpack+0x390/0x390 [ 54.087740][ T3631] __se_sys_ioctl+0xfb/0x170 [ 54.092321][ T3631] do_syscall_64+0x3d/0xb0 [ 54.096729][ T3631] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.102612][ T3631] RIP: 0033:0x7f1a14fd4189 [ 54.107016][ T3631] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 54.126605][ T3631] RSP: 002b:00007ffec37977d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 54.135008][ T3631] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1a14fd4189 [ 54.142968][ T3631] RDX: 0000000020000080 RSI: 0000000040087602 RDI: 0000000000000005 ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 54.150925]