./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4063607938 <...> Warning: Permanently added '10.128.10.39' (ECDSA) to the list of known hosts. execve("./syz-executor4063607938", ["./syz-executor4063607938"], 0x7ffe9be4e460 /* 10 vars */) = 0 brk(NULL) = 0x555556a15000 brk(0x555556a15c40) = 0x555556a15c40 arch_prctl(ARCH_SET_FS, 0x555556a15300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4063607938", 4096) = 28 brk(0x555556a36c40) = 0x555556a36c40 brk(0x555556a37000) = 0x555556a37000 mprotect(0x7f6c98767000, 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 [ 51.886574][ T3634] loop0: detected capacity change from 0 to 8192 [ 51.899028][ T3634] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 51.912066][ T3634] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 51.921469][ T3634] REISERFS (device loop0): using ordered data mode [ 51.928011][ T3634] 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 [ 51.934128][ T3634] 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 [ 51.950662][ T3634] REISERFS (device loop0): checking transaction log (loop0) [ 51.959969][ T3634] REISERFS (device loop0): Using rupasov hash to sort names [ 51.968186][ T3634] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ioctl(3, _IOC(_IOC_WRITE, 0x66, 0x8, 0x28), 0x20000080) = -1 EINVAL (Invalid argument) pwritev2(-1, NULL, 0, 862, RWF_SYNC) = -1 EBADF (Bad file descriptor) [ 51.990678][ T3634] EXT4-fs warning (device sda1): verify_group_input:151: Cannot add at group 49 (only 8 groups) [ 52.028428][ T3634] [ 52.030762][ T3634] ====================================================== [ 52.037760][ T3634] WARNING: possible circular locking dependency detected [ 52.044756][ T3634] 6.1.0-rc5-syzkaller-00326-g77c51ba552a1 #0 Not tainted [ 52.051751][ T3634] ------------------------------------------------------ [ 52.058764][ T3634] syz-executor406/3634 is trying to acquire lock: [ 52.065163][ T3634] ffffc90003cf10f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070 [ 52.074895][ T3634] [ 52.074895][ T3634] but task is already holding lock: [ 52.082240][ T3634] ffff888022c0e460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 52.091441][ T3634] [ 52.091441][ T3634] which lock already depends on the new lock. [ 52.091441][ T3634] [ 52.101822][ T3634] [ 52.101822][ T3634] the existing dependency chain (in reverse order) is: [ 52.110809][ T3634] [ 52.110809][ T3634] -> #2 (sb_writers#9){.+.+}-{0:0}: [ 52.118167][ T3634] lock_acquire+0x182/0x3c0 [ 52.123175][ T3634] sb_start_write+0x4d/0x1a0 [ 52.128268][ T3634] mnt_want_write_file+0x5a/0x1f0 [ 52.133794][ T3634] reiserfs_ioctl+0x16e/0x340 [ 52.138972][ T3634] __se_sys_ioctl+0xfb/0x170 [ 52.144064][ T3634] do_syscall_64+0x3d/0xb0 [ 52.148985][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.155378][ T3634] [ 52.155378][ T3634] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 52.162562][ T3634] lock_acquire+0x182/0x3c0 [ 52.167572][ T3634] __mutex_lock_common+0x1bd/0x26e0 [ 52.173271][ T3634] mutex_lock_nested+0x17/0x20 [ 52.178549][ T3634] reiserfs_write_lock_nested+0x5b/0xd0 [ 52.184596][ T3634] do_journal_begin_r+0x34b/0x1070 [ 52.190207][ T3634] journal_begin+0x14b/0x350 [ 52.195298][ T3634] reiserfs_fill_super+0x172b/0x24a0 [ 52.201088][ T3634] mount_bdev+0x26c/0x3a0 [ 52.205916][ T3634] legacy_get_tree+0xea/0x180 [ 52.211091][ T3634] vfs_get_tree+0x88/0x270 [ 52.216011][ T3634] do_new_mount+0x289/0xad0 [ 52.221012][ T3634] __se_sys_mount+0x2d3/0x3c0 [ 52.226187][ T3634] do_syscall_64+0x3d/0xb0 [ 52.231103][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.237498][ T3634] [ 52.237498][ T3634] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 52.245290][ T3634] validate_chain+0x1898/0x6ae0 [ 52.250681][ T3634] __lock_acquire+0x1292/0x1f60 [ 52.256034][ T3634] lock_acquire+0x182/0x3c0 [ 52.261037][ T3634] __mutex_lock_common+0x1bd/0x26e0 [ 52.266738][ T3634] mutex_lock_nested+0x17/0x20 [ 52.272018][ T3634] do_journal_begin_r+0x340/0x1070 [ 52.277630][ T3634] journal_begin+0x14b/0x350 [ 52.282730][ T3634] reiserfs_dirty_inode+0x108/0x230 [ 52.288432][ T3634] __mark_inode_dirty+0x1e7/0x600 [ 52.293989][ T3634] reiserfs_ioctl+0x293/0x340 [ 52.299167][ T3634] __se_sys_ioctl+0xfb/0x170 [ 52.304257][ T3634] do_syscall_64+0x3d/0xb0 [ 52.309174][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.315664][ T3634] [ 52.315664][ T3634] other info that might help us debug this: [ 52.315664][ T3634] [ 52.325871][ T3634] Chain exists of: [ 52.325871][ T3634] &journal->j_mutex --> &sbi->lock --> sb_writers#9 [ 52.325871][ T3634] [ 52.338386][ T3634] Possible unsafe locking scenario: [ 52.338386][ T3634] [ 52.345811][ T3634] CPU0 CPU1 [ 52.351154][ T3634] ---- ---- [ 52.356494][ T3634] lock(sb_writers#9); [ 52.360633][ T3634] lock(&sbi->lock); [ 52.367118][ T3634] lock(sb_writers#9); [ 52.373771][ T3634] lock(&journal->j_mutex); [ 52.378337][ T3634] [ 52.378337][ T3634] *** DEADLOCK *** [ 52.378337][ T3634] [ 52.386454][ T3634] 1 lock held by syz-executor406/3634: [ 52.391890][ T3634] #0: ffff888022c0e460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 52.401527][ T3634] [ 52.401527][ T3634] stack backtrace: [ 52.407395][ T3634] CPU: 0 PID: 3634 Comm: syz-executor406 Not tainted 6.1.0-rc5-syzkaller-00326-g77c51ba552a1 #0 [ 52.417781][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 52.427813][ T3634] Call Trace: [ 52.431075][ T3634] [ 52.433987][ T3634] dump_stack_lvl+0x1b1/0x28e [ 52.438649][ T3634] ? nf_tcp_handle_invalid+0x62e/0x62e [ 52.444091][ T3634] ? print_circular_bug+0x13e/0x1c0 [ 52.449270][ T3634] check_noncircular+0x2cc/0x390 [ 52.454191][ T3634] ? add_chain_block+0x850/0x850 [ 52.459108][ T3634] ? lockdep_lock+0x102/0x290 [ 52.463765][ T3634] ? _find_first_zero_bit+0xe8/0x110 [ 52.469029][ T3634] validate_chain+0x1898/0x6ae0 [ 52.473867][ T3634] ? reacquire_held_locks+0x650/0x650 [ 52.479219][ T3634] ? __kernel_text_address+0x9/0x40 [ 52.484398][ T3634] ? unwind_get_return_address+0x48/0x80 [ 52.490010][ T3634] ? arch_stack_walk+0x98/0xe0 [ 52.494763][ T3634] ? stack_trace_save+0x104/0x1e0 [ 52.499766][ T3634] ? stack_trace_snprint+0xf0/0xf0 [ 52.504855][ T3634] ? check_noncircular+0x1aa/0x390 [ 52.509946][ T3634] ? add_chain_block+0x850/0x850 [ 52.514864][ T3634] ? lockdep_unlock+0x144/0x2e0 [ 52.519691][ T3634] ? lockdep_lock+0x290/0x290 [ 52.524348][ T3634] ? add_lock_to_list+0x1c7/0x2d0 [ 52.529389][ T3634] ? validate_chain+0x1478/0x6ae0 [ 52.534405][ T3634] ? reacquire_held_locks+0x650/0x650 [ 52.539768][ T3634] ? lockdep_unlock+0x144/0x2e0 [ 52.544600][ T3634] ? lockdep_lock+0x290/0x290 [ 52.549253][ T3634] ? add_lock_to_list+0x1c7/0x2d0 [ 52.554259][ T3634] ? validate_chain+0x1478/0x6ae0 [ 52.559787][ T3634] ? reacquire_held_locks+0x650/0x650 [ 52.565142][ T3634] ? rcu_read_lock_sched_held+0x87/0x110 [ 52.570752][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.576711][ T3634] ? resched_curr+0x161/0x2f0 [ 52.581378][ T3634] ? ttwu_queue+0x1c8/0x310 [ 52.585869][ T3634] ? mark_lock+0x9a/0x350 [ 52.590180][ T3634] ? rcu_read_lock_sched_held+0x87/0x110 [ 52.595793][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.601752][ T3634] ? rcu_lock_acquire+0x30/0x30 [ 52.606583][ T3634] ? stack_trace_save+0x1e0/0x1e0 [ 52.611586][ T3634] ? rcu_read_lock_sched_held+0x87/0x110 [ 52.617196][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.623155][ T3634] ? rcu_lock_release+0x5/0x20 [ 52.627901][ T3634] ? read_lock_is_recursive+0x10/0x10 [ 52.633253][ T3634] ? rcu_lock_release+0x5/0x20 [ 52.637998][ T3634] ? __lock_acquire+0x1f60/0x1f60 [ 52.643001][ T3634] ? deref_stack_reg+0x17a/0x210 [ 52.647918][ T3634] ? preempt_count_add+0x8d/0x180 [ 52.652924][ T3634] ? stack_trace_save+0x1e0/0x1e0 [ 52.657929][ T3634] ? is_bpf_text_address+0x253/0x270 [ 52.663192][ T3634] ? stack_trace_save+0x1e0/0x1e0 [ 52.668199][ T3634] ? stack_trace_save+0x1e0/0x1e0 [ 52.673204][ T3634] ? rcu_read_lock_sched_held+0x87/0x110 [ 52.678812][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.684771][ T3634] ? rcu_lock_release+0x5/0x20 [ 52.689521][ T3634] ? read_lock_is_recursive+0x10/0x10 [ 52.694873][ T3634] ? rcu_lock_release+0x5/0x20 [ 52.699619][ T3634] ? __lock_acquire+0x1f60/0x1f60 [ 52.704625][ T3634] ? deref_stack_reg+0x17a/0x210 [ 52.709548][ T3634] ? stack_trace_save+0x1e0/0x1e0 [ 52.714553][ T3634] ? rcu_read_lock_sched_held+0x87/0x110 [ 52.720165][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.726125][ T3634] ? rcu_lock_release+0x5/0x20 [ 52.730869][ T3634] ? read_lock_is_recursive+0x10/0x10 [ 52.736219][ T3634] ? rcu_lock_release+0x5/0x20 [ 52.740971][ T3634] ? __lock_acquire+0x1f60/0x1f60 [ 52.746148][ T3634] ? deref_stack_reg+0x17a/0x210 [ 52.751076][ T3634] ? mark_lock+0x9a/0x350 [ 52.755389][ T3634] ? __lock_acquire+0x1292/0x1f60 [ 52.760433][ T3634] ? mark_lock+0x9a/0x350 [ 52.764746][ T3634] __lock_acquire+0x1292/0x1f60 [ 52.769581][ T3634] lock_acquire+0x182/0x3c0 [ 52.774064][ T3634] ? do_journal_begin_r+0x340/0x1070 [ 52.779329][ T3634] ? read_lock_is_recursive+0x10/0x10 [ 52.785990][ T3634] ? __might_sleep+0xc0/0xc0 [ 52.790580][ T3634] ? reiserfs_write_unlock_nested+0xd0/0x120 [ 52.796546][ T3634] ? __lock_acquire+0x1f60/0x1f60 [ 52.801554][ T3634] __mutex_lock_common+0x1bd/0x26e0 [ 52.806740][ T3634] ? do_journal_begin_r+0x340/0x1070 [ 52.812007][ T3634] ? __mutex_unlock_slowpath+0x222/0x770 [ 52.817624][ T3634] ? do_journal_begin_r+0x340/0x1070 [ 52.822900][ T3634] ? mutex_unlock+0x10/0x10 [ 52.827407][ T3634] ? mutex_lock_io_nested+0x60/0x60 [ 52.832676][ T3634] mutex_lock_nested+0x17/0x20 [ 52.837446][ T3634] do_journal_begin_r+0x340/0x1070 [ 52.842544][ T3634] ? journal_join_abort+0xe0/0xe0 [ 52.847546][ T3634] ? print_irqtrace_events+0x220/0x220 [ 52.852984][ T3634] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 52.858771][ T3634] ? lockdep_hardirqs_on+0x8d/0x130 [ 52.863952][ T3634] journal_begin+0x14b/0x350 [ 52.868523][ T3634] reiserfs_dirty_inode+0x108/0x230 [ 52.873704][ T3634] ? reiserfs_free_inode+0x20/0x20 [ 52.878795][ T3634] ? rcu_read_lock_sched_held+0x87/0x110 [ 52.884407][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 52.890365][ T3634] ? current_time+0x1d7/0x300 [ 52.895038][ T3634] ? reiserfs_free_inode+0x20/0x20 [ 52.900134][ T3634] __mark_inode_dirty+0x1e7/0x600 [ 52.905174][ T3634] ? __might_fault+0xb2/0x110 [ 52.909838][ T3634] reiserfs_ioctl+0x293/0x340 [ 52.914500][ T3634] ? __se_sys_ioctl+0xf0/0x170 [ 52.919253][ T3634] ? reiserfs_unpack+0x390/0x390 [ 52.924169][ T3634] __se_sys_ioctl+0xfb/0x170 [ 52.928741][ T3634] do_syscall_64+0x3d/0xb0 [ 52.933224][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.939097][ T3634] RIP: 0033:0x7f6c986fa209 ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 52.943495][ T3634]