./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor690986580 <...> Warning: Permanently added '10.128.0.237' (ECDSA) to the list of known hosts. execve("./syz-executor690986580", ["./syz-executor690986580"], 0x7ffcb00ee650 /* 10 vars */) = 0 brk(NULL) = 0x5555561ae000 brk(0x5555561aec40) = 0x5555561aec40 arch_prctl(ARCH_SET_FS, 0x5555561ae300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor690986580", 4096) = 27 brk(0x5555561cfc40) = 0x5555561cfc40 brk(0x5555561d0000) = 0x5555561d0000 mprotect(0x7f7b199ec000, 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 [ 61.103266][ T3615] loop0: detected capacity change from 0 to 8192 [ 61.115957][ T3615] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 61.129040][ T3615] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 61.139009][ T3615] REISERFS (device loop0): using ordered data mode [ 61.145804][ T3615] 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 [ 61.152197][ T3615] 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 [ 61.169217][ T3615] REISERFS (device loop0): checking transaction log (loop0) [ 61.179143][ T3615] REISERFS (device loop0): Using rupasov hash to sort names [ 61.187486][ T3615] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 61.201840][ T3615] [ 61.204212][ T3615] ====================================================== [ 61.211248][ T3615] WARNING: possible circular locking dependency detected [ 61.218282][ T3615] 6.1.0-rc4-syzkaller-00159-g4bbf3422df78 #0 Not tainted [ 61.225319][ T3615] ------------------------------------------------------ [ 61.232351][ T3615] syz-executor690/3615 is trying to acquire lock: [ 61.238769][ T3615] ffffc90003b910f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070 [ 61.248578][ T3615] [ 61.248578][ T3615] but task is already holding lock: [ 61.255937][ T3615] ffff888025cb6460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 61.265169][ T3615] [ 61.265169][ T3615] which lock already depends on the new lock. [ 61.265169][ T3615] [ 61.275560][ T3615] [ 61.275560][ T3615] the existing dependency chain (in reverse order) is: [ 61.284569][ T3615] [ 61.284569][ T3615] -> #2 (sb_writers#9){.+.+}-{0:0}: [ 61.291954][ T3615] lock_acquire+0x182/0x3c0 [ 61.296983][ T3615] sb_start_write+0x4d/0x1a0 [ 61.302106][ T3615] mnt_want_write_file+0x5a/0x1f0 [ 61.307665][ T3615] reiserfs_ioctl+0x16e/0x340 [ 61.313039][ T3615] __se_sys_ioctl+0xfb/0x170 [ 61.318154][ T3615] do_syscall_64+0x3d/0xb0 [ 61.323099][ T3615] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.329521][ T3615] [ 61.329521][ T3615] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 61.336724][ T3615] lock_acquire+0x182/0x3c0 [ 61.341744][ T3615] __mutex_lock_common+0x1bd/0x26e0 [ 61.347460][ T3615] mutex_lock_nested+0x17/0x20 [ 61.352735][ T3615] reiserfs_write_lock_nested+0x5b/0xd0 [ 61.358806][ T3615] do_journal_begin_r+0x34b/0x1070 [ 61.364438][ T3615] journal_begin+0x14b/0x350 [ 61.369546][ T3615] reiserfs_fill_super+0x172b/0x24a0 [ 61.375351][ T3615] mount_bdev+0x26c/0x3a0 [ 61.380197][ T3615] legacy_get_tree+0xea/0x180 [ 61.385398][ T3615] vfs_get_tree+0x88/0x270 [ 61.390334][ T3615] do_new_mount+0x289/0xad0 [ 61.395353][ T3615] __se_sys_mount+0x2d3/0x3c0 [ 61.400545][ T3615] do_syscall_64+0x3d/0xb0 [ 61.405485][ T3615] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.411899][ T3615] [ 61.411899][ T3615] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 61.419713][ T3615] validate_chain+0x1898/0x6ae0 [ 61.425084][ T3615] __lock_acquire+0x1292/0x1f60 [ 61.430477][ T3615] lock_acquire+0x182/0x3c0 [ 61.435513][ T3615] __mutex_lock_common+0x1bd/0x26e0 [ 61.441230][ T3615] mutex_lock_nested+0x17/0x20 [ 61.446510][ T3615] do_journal_begin_r+0x340/0x1070 [ 61.452142][ T3615] journal_begin+0x14b/0x350 [ 61.457249][ T3615] reiserfs_dirty_inode+0x108/0x230 [ 61.462972][ T3615] __mark_inode_dirty+0x1e7/0x600 [ 61.468865][ T3615] reiserfs_ioctl+0x293/0x340 [ 61.474064][ T3615] __se_sys_ioctl+0xfb/0x170 [ 61.479238][ T3615] do_syscall_64+0x3d/0xb0 [ 61.484173][ T3615] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.490585][ T3615] [ 61.490585][ T3615] other info that might help us debug this: [ 61.490585][ T3615] [ 61.500803][ T3615] Chain exists of: [ 61.500803][ T3615] &journal->j_mutex --> &sbi->lock --> sb_writers#9 [ 61.500803][ T3615] [ 61.513357][ T3615] Possible unsafe locking scenario: [ 61.513357][ T3615] [ 61.520802][ T3615] CPU0 CPU1 [ 61.526169][ T3615] ---- ---- [ 61.531524][ T3615] lock(sb_writers#9); [ 61.535682][ T3615] lock(&sbi->lock); [ 61.542175][ T3615] lock(sb_writers#9); [ 61.548849][ T3615] lock(&journal->j_mutex); [ 61.553534][ T3615] [ 61.553534][ T3615] *** DEADLOCK *** [ 61.553534][ T3615] [ 61.561697][ T3615] 1 lock held by syz-executor690/3615: [ 61.567168][ T3615] #0: ffff888025cb6460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 61.576834][ T3615] [ 61.576834][ T3615] stack backtrace: [ 61.582711][ T3615] CPU: 1 PID: 3615 Comm: syz-executor690 Not tainted 6.1.0-rc4-syzkaller-00159-g4bbf3422df78 #0 [ 61.593111][ T3615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 61.603159][ T3615] Call Trace: [ 61.606438][ T3615] [ 61.609366][ T3615] dump_stack_lvl+0x1b1/0x28e [ 61.614059][ T3615] ? nf_tcp_handle_invalid+0x62e/0x62e [ 61.619543][ T3615] ? print_circular_bug+0x13e/0x1c0 [ 61.624754][ T3615] check_noncircular+0x2cc/0x390 [ 61.629695][ T3615] ? add_chain_block+0x850/0x850 [ 61.634637][ T3615] ? lockdep_lock+0x102/0x290 [ 61.639318][ T3615] ? _find_first_zero_bit+0xe8/0x110 [ 61.644617][ T3615] validate_chain+0x1898/0x6ae0 [ 61.649480][ T3615] ? reacquire_held_locks+0x650/0x650 [ 61.654858][ T3615] ? __kernel_text_address+0x9/0x40 [ 61.660074][ T3615] ? unwind_get_return_address+0x48/0x80 [ 61.665710][ T3615] ? arch_stack_walk+0x98/0xe0 [ 61.670474][ T3615] ? stack_trace_save+0x104/0x1e0 [ 61.675504][ T3615] ? stack_trace_snprint+0xf0/0xf0 [ 61.680613][ T3615] ? check_noncircular+0x1aa/0x390 [ 61.685741][ T3615] ? add_chain_block+0x850/0x850 [ 61.690699][ T3615] ? lockdep_unlock+0x144/0x2e0 [ 61.695564][ T3615] ? lockdep_lock+0x290/0x290 [ 61.700245][ T3615] ? add_lock_to_list+0x1c7/0x2d0 [ 61.705286][ T3615] ? validate_chain+0x1478/0x6ae0 [ 61.710320][ T3615] ? reacquire_held_locks+0x650/0x650 [ 61.715692][ T3615] ? lockdep_unlock+0x144/0x2e0 [ 61.720543][ T3615] ? lockdep_lock+0x290/0x290 [ 61.725217][ T3615] ? add_lock_to_list+0x1c7/0x2d0 [ 61.730243][ T3615] ? validate_chain+0x1478/0x6ae0 [ 61.735291][ T3615] ? reacquire_held_locks+0x650/0x650 [ 61.740667][ T3615] ? rcu_read_lock_sched_held+0x87/0x110 [ 61.746299][ T3615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 61.752279][ T3615] ? __stack_depot_save+0x41c/0x4a0 [ 61.757484][ T3615] ? trace_lock_release+0x95/0x220 [ 61.762600][ T3615] ? stack_trace_save+0x1e0/0x1e0 [ 61.767629][ T3615] ? rcu_read_lock_sched_held+0x87/0x110 [ 61.773261][ T3615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 61.779248][ T3615] ? stack_trace_save+0x1e0/0x1e0 [ 61.784273][ T3615] ? rcu_read_lock_sched_held+0x87/0x110 [ 61.789903][ T3615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 61.795884][ T3615] ? rcu_lock_release+0x5/0x20 [ 61.800650][ T3615] ? read_lock_is_recursive+0x10/0x10 [ 61.806026][ T3615] ? rcu_lock_release+0x5/0x20 [ 61.810813][ T3615] ? __lock_acquire+0x1f60/0x1f60 [ 61.815850][ T3615] ? deref_stack_reg+0x17a/0x210 [ 61.820806][ T3615] ? preempt_count_add+0x8d/0x180 [ 61.825859][ T3615] ? stack_trace_save+0x1e0/0x1e0 [ 61.830887][ T3615] ? is_bpf_text_address+0x253/0x270 [ 61.836176][ T3615] ? stack_trace_save+0x1e0/0x1e0 [ 61.841210][ T3615] ? stack_trace_save+0x1e0/0x1e0 [ 61.846240][ T3615] ? rcu_read_lock_sched_held+0x87/0x110 [ 61.851874][ T3615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 61.857945][ T3615] ? rcu_lock_release+0x5/0x20 [ 61.862712][ T3615] ? read_lock_is_recursive+0x10/0x10 [ 61.868085][ T3615] ? rcu_lock_release+0x5/0x20 [ 61.872851][ T3615] ? __lock_acquire+0x1f60/0x1f60 [ 61.877874][ T3615] ? deref_stack_reg+0x17a/0x210 [ 61.882817][ T3615] ? stack_trace_save+0x1e0/0x1e0 [ 61.887932][ T3615] ? rcu_read_lock_sched_held+0x87/0x110 [ 61.893566][ T3615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 61.899549][ T3615] ? rcu_lock_release+0x5/0x20 [ 61.904406][ T3615] ? read_lock_is_recursive+0x10/0x10 [ 61.909780][ T3615] ? rcu_lock_release+0x5/0x20 [ 61.914553][ T3615] ? __lock_acquire+0x1f60/0x1f60 [ 61.919576][ T3615] ? deref_stack_reg+0x17a/0x210 [ 61.924513][ T3615] ? mark_lock+0x9a/0x350 [ 61.928869][ T3615] ? __lock_acquire+0x1292/0x1f60 [ 61.933899][ T3615] ? mark_lock+0x9a/0x350 [ 61.938229][ T3615] __lock_acquire+0x1292/0x1f60 [ 61.943087][ T3615] lock_acquire+0x182/0x3c0 [ 61.947588][ T3615] ? do_journal_begin_r+0x340/0x1070 [ 61.952873][ T3615] ? read_lock_is_recursive+0x10/0x10 [ 61.958250][ T3615] ? __might_sleep+0xc0/0xc0 [ 61.962841][ T3615] ? reiserfs_write_unlock_nested+0xd0/0x120 [ 61.968823][ T3615] ? __lock_acquire+0x1f60/0x1f60 [ 61.973863][ T3615] __mutex_lock_common+0x1bd/0x26e0 [ 61.979143][ T3615] ? do_journal_begin_r+0x340/0x1070 [ 61.984786][ T3615] ? __mutex_unlock_slowpath+0x222/0x770 [ 61.990415][ T3615] ? do_journal_begin_r+0x340/0x1070 [ 61.995698][ T3615] ? mutex_unlock+0x10/0x10 [ 62.000194][ T3615] ? mutex_lock_io_nested+0x60/0x60 [ 62.005408][ T3615] mutex_lock_nested+0x17/0x20 [ 62.010176][ T3615] do_journal_begin_r+0x340/0x1070 [ 62.015319][ T3615] ? journal_join_abort+0xe0/0xe0 [ 62.020339][ T3615] ? print_irqtrace_events+0x220/0x220 [ 62.025803][ T3615] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 62.031609][ T3615] ? lockdep_hardirqs_on+0x8d/0x130 [ 62.036810][ T3615] journal_begin+0x14b/0x350 [ 62.041431][ T3615] reiserfs_dirty_inode+0x108/0x230 [ 62.046662][ T3615] ? reiserfs_free_inode+0x20/0x20 [ 62.051781][ T3615] ? rcu_read_lock_sched_held+0x87/0x110 [ 62.057505][ T3615] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 62.063489][ T3615] ? current_time+0x1d7/0x300 [ 62.068258][ T3615] ? reiserfs_free_inode+0x20/0x20 [ 62.073370][ T3615] __mark_inode_dirty+0x1e7/0x600 [ 62.078408][ T3615] ? __might_fault+0xb2/0x110 [ 62.083084][ T3615] reiserfs_ioctl+0x293/0x340 [ 62.087759][ T3615] ? __se_sys_ioctl+0xf0/0x170 [ 62.092524][ T3615] ? reiserfs_unpack+0x390/0x390 [ 62.097459][ T3615] __se_sys_ioctl+0xfb/0x170 [ 62.102048][ T3615] do_syscall_64+0x3d/0xb0 [ 62.106552][ T3615] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.112444][ T3615] RIP: 0033:0x7f7b19980159 [ 62.116864][ T3615] 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 [ 62.136558][ T3615] RSP: 002b:00007ffdbb240ce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 62.144970][ T3615] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7b19980159 ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 62.152949][ T3615] RDX: 0000000020000080 RSI: 0000