./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2969117865 <...> Warning: Permanently added '10.128.1.38' (ECDSA) to the list of known hosts. execve("./syz-executor2969117865", ["./syz-executor2969117865"], 0x7ffcca9865c0 /* 10 vars */) = 0 brk(NULL) = 0x5555559b4000 brk(0x5555559b4c40) = 0x5555559b4c40 arch_prctl(ARCH_SET_FS, 0x5555559b4300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2969117865", 4096) = 28 brk(0x5555559d5c40) = 0x5555559d5c40 brk(0x5555559d6000) = 0x5555559d6000 mprotect(0x7ff0b0642000, 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: [ 51.008053][ T3609] loop0: detected capacity change from 0 to 8192 [ 51.019550][ T3609] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 51.032624][ T3609] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 51.042408][ T3609] REISERFS (device loop0): using ordered data mode [ 51.049144][ T3609] 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(NULL, O_RDONLY) = -1 EFAULT (Bad address) ioctl(-1, _IOC(_IOC_WRITE, 0x66, 0x8, 0x28), 0x20000080) = -1 EBADF (Bad file descriptor) [ 51.055039][ T3609] 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 [ 51.071886][ T3609] REISERFS (device loop0): checking transaction log (loop0) [ 51.081046][ T3609] REISERFS (device loop0): Using rupasov hash to sort names [ 51.089706][ T3609] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 51.109002][ T3609] [ 51.111349][ T3609] ====================================================== [ 51.118366][ T3609] WARNING: possible circular locking dependency detected [ 51.125382][ T3609] 6.1.0-rc4-syzkaller-00372-gaf7a05689189 #0 Not tainted [ 51.132393][ T3609] ------------------------------------------------------ [ 51.139385][ T3609] syz-executor296/3609 is trying to acquire lock: [ 51.145770][ T3609] ffffc90003d210f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070 [ 51.155495][ T3609] [ 51.155495][ T3609] but task is already holding lock: [ 51.162835][ T3609] ffff88807eab4460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 51.172036][ T3609] [ 51.172036][ T3609] which lock already depends on the new lock. [ 51.172036][ T3609] [ 51.182418][ T3609] [ 51.182418][ T3609] the existing dependency chain (in reverse order) is: [ 51.191408][ T3609] [ 51.191408][ T3609] -> #2 (sb_writers#9){.+.+}-{0:0}: [ 51.198783][ T3609] lock_acquire+0x182/0x3c0 [ 51.203815][ T3609] sb_start_write+0x4d/0x1a0 [ 51.208923][ T3609] mnt_want_write_file+0x5a/0x1f0 [ 51.214459][ T3609] reiserfs_ioctl+0x16e/0x340 [ 51.219650][ T3609] __se_sys_ioctl+0xfb/0x170 [ 51.224766][ T3609] do_syscall_64+0x3d/0xb0 [ 51.229726][ T3609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 51.236153][ T3609] [ 51.236153][ T3609] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 51.243524][ T3609] lock_acquire+0x182/0x3c0 [ 51.248536][ T3609] __mutex_lock_common+0x1bd/0x26e0 [ 51.254237][ T3609] mutex_lock_nested+0x17/0x20 [ 51.259504][ T3609] reiserfs_write_lock_nested+0x5b/0xd0 [ 51.265557][ T3609] do_journal_begin_r+0x34b/0x1070 [ 51.271173][ T3609] journal_begin+0x14b/0x350 [ 51.276267][ T3609] reiserfs_fill_super+0x172b/0x24a0 [ 51.282071][ T3609] mount_bdev+0x26c/0x3a0 [ 51.286909][ T3609] legacy_get_tree+0xea/0x180 [ 51.292103][ T3609] vfs_get_tree+0x88/0x270 [ 51.297036][ T3609] do_new_mount+0x289/0xad0 [ 51.302069][ T3609] __se_sys_mount+0x2d3/0x3c0 [ 51.307266][ T3609] do_syscall_64+0x3d/0xb0 [ 51.312195][ T3609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 51.318604][ T3609] [ 51.318604][ T3609] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 51.326412][ T3609] validate_chain+0x1898/0x6ae0 [ 51.331777][ T3609] __lock_acquire+0x1292/0x1f60 [ 51.337139][ T3609] lock_acquire+0x182/0x3c0 [ 51.342153][ T3609] __mutex_lock_common+0x1bd/0x26e0 [ 51.347856][ T3609] mutex_lock_nested+0x17/0x20 [ 51.353126][ T3609] do_journal_begin_r+0x340/0x1070 [ 51.358743][ T3609] journal_begin+0x14b/0x350 [ 51.363859][ T3609] reiserfs_dirty_inode+0x108/0x230 [ 51.369580][ T3609] __mark_inode_dirty+0x1e7/0x600 [ 51.375129][ T3609] reiserfs_ioctl+0x293/0x340 [ 51.380323][ T3609] __se_sys_ioctl+0xfb/0x170 [ 51.385432][ T3609] do_syscall_64+0x3d/0xb0 [ 51.390361][ T3609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 51.396782][ T3609] [ 51.396782][ T3609] other info that might help us debug this: [ 51.396782][ T3609] [ 51.407016][ T3609] Chain exists of: [ 51.407016][ T3609] &journal->j_mutex --> &sbi->lock --> sb_writers#9 [ 51.407016][ T3609] [ 51.419527][ T3609] Possible unsafe locking scenario: [ 51.419527][ T3609] [ 51.426967][ T3609] CPU0 CPU1 [ 51.432332][ T3609] ---- ---- [ 51.437691][ T3609] lock(sb_writers#9); [ 51.441861][ T3609] lock(&sbi->lock); [ 51.448352][ T3609] lock(sb_writers#9); [ 51.455019][ T3609] lock(&journal->j_mutex); [ 51.459591][ T3609] [ 51.459591][ T3609] *** DEADLOCK *** [ 51.459591][ T3609] [ 51.467722][ T3609] 1 lock held by syz-executor296/3609: [ 51.473171][ T3609] #0: ffff88807eab4460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 51.482831][ T3609] [ 51.482831][ T3609] stack backtrace: [ 51.488714][ T3609] CPU: 1 PID: 3609 Comm: syz-executor296 Not tainted 6.1.0-rc4-syzkaller-00372-gaf7a05689189 #0 [ 51.499185][ T3609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 51.509233][ T3609] Call Trace: [ 51.512506][ T3609] [ 51.515432][ T3609] dump_stack_lvl+0x1b1/0x28e [ 51.520107][ T3609] ? nf_tcp_handle_invalid+0x62e/0x62e [ 51.525563][ T3609] ? print_circular_bug+0x13e/0x1c0 [ 51.530755][ T3609] check_noncircular+0x2cc/0x390 [ 51.535685][ T3609] ? add_chain_block+0x850/0x850 [ 51.540610][ T3609] ? lockdep_lock+0x102/0x290 [ 51.545278][ T3609] ? _find_first_zero_bit+0xe8/0x110 [ 51.550550][ T3609] validate_chain+0x1898/0x6ae0 [ 51.555398][ T3609] ? reacquire_held_locks+0x650/0x650 [ 51.560763][ T3609] ? __kernel_text_address+0x9/0x40 [ 51.565944][ T3609] ? unwind_get_return_address+0x48/0x80 [ 51.571565][ T3609] ? arch_stack_walk+0x98/0xe0 [ 51.576318][ T3609] ? stack_trace_save+0x104/0x1e0 [ 51.581331][ T3609] ? stack_trace_snprint+0xf0/0xf0 [ 51.586433][ T3609] ? check_noncircular+0x1aa/0x390 [ 51.591532][ T3609] ? add_chain_block+0x850/0x850 [ 51.596459][ T3609] ? lockdep_unlock+0x144/0x2e0 [ 51.601296][ T3609] ? lockdep_lock+0x290/0x290 [ 51.605958][ T3609] ? add_lock_to_list+0x1c7/0x2d0 [ 51.610972][ T3609] ? validate_chain+0x1478/0x6ae0 [ 51.615987][ T3609] ? reacquire_held_locks+0x650/0x650 [ 51.621348][ T3609] ? lockdep_unlock+0x144/0x2e0 [ 51.626183][ T3609] ? lockdep_lock+0x290/0x290 [ 51.630846][ T3609] ? add_lock_to_list+0x1c7/0x2d0 [ 51.635862][ T3609] ? validate_chain+0x1478/0x6ae0 [ 51.640878][ T3609] ? reacquire_held_locks+0x650/0x650 [ 51.646242][ T3609] ? reacquire_held_locks+0x650/0x650 [ 51.651604][ T3609] ? is_bpf_text_address+0x253/0x270 [ 51.656876][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 51.661892][ T3609] ? __kernel_text_address+0x9/0x40 [ 51.667075][ T3609] ? unwind_get_return_address+0x48/0x80 [ 51.672699][ T3609] ? arch_stack_walk+0x98/0xe0 [ 51.677449][ T3609] ? stack_trace_save+0x104/0x1e0 [ 51.682460][ T3609] ? stack_trace_snprint+0xf0/0xf0 [ 51.687577][ T3609] ? lockdep_unlock+0x144/0x2e0 [ 51.692418][ T3609] ? lockdep_lock+0x290/0x290 [ 51.697092][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 51.702104][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.707722][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.713688][ T3609] ? rcu_lock_release+0x5/0x20 [ 51.718445][ T3609] ? read_lock_is_recursive+0x10/0x10 [ 51.723807][ T3609] ? rcu_lock_release+0x5/0x20 [ 51.728560][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 51.733571][ T3609] ? deref_stack_reg+0x17a/0x210 [ 51.738499][ T3609] ? preempt_count_add+0x8d/0x180 [ 51.743515][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 51.748525][ T3609] ? is_bpf_text_address+0x253/0x270 [ 51.753796][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 51.758811][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 51.763825][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.769445][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.775414][ T3609] ? rcu_lock_release+0x5/0x20 [ 51.780169][ T3609] ? read_lock_is_recursive+0x10/0x10 [ 51.785526][ T3609] ? rcu_lock_release+0x5/0x20 [ 51.790280][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 51.795292][ T3609] ? deref_stack_reg+0x17a/0x210 [ 51.800223][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 51.805234][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.810853][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.816820][ T3609] ? rcu_lock_release+0x5/0x20 [ 51.821576][ T3609] ? read_lock_is_recursive+0x10/0x10 [ 51.826936][ T3609] ? rcu_lock_release+0x5/0x20 [ 51.831692][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 51.836705][ T3609] ? deref_stack_reg+0x17a/0x210 [ 51.841632][ T3609] ? mark_lock+0x9a/0x350 [ 51.845949][ T3609] ? __lock_acquire+0x1292/0x1f60 [ 51.850965][ T3609] ? mark_lock+0x9a/0x350 [ 51.855283][ T3609] __lock_acquire+0x1292/0x1f60 [ 51.860126][ T3609] lock_acquire+0x182/0x3c0 [ 51.864615][ T3609] ? do_journal_begin_r+0x340/0x1070 [ 51.869887][ T3609] ? read_lock_is_recursive+0x10/0x10 [ 51.875248][ T3609] ? __might_sleep+0xc0/0xc0 [ 51.879826][ T3609] ? reiserfs_write_unlock_nested+0xd0/0x120 [ 51.885805][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 51.890838][ T3609] __mutex_lock_common+0x1bd/0x26e0 [ 51.896039][ T3609] ? do_journal_begin_r+0x340/0x1070 [ 51.901314][ T3609] ? __mutex_unlock_slowpath+0x222/0x770 [ 51.906933][ T3609] ? do_journal_begin_r+0x340/0x1070 [ 51.912223][ T3609] ? mutex_unlock+0x10/0x10 [ 51.916710][ T3609] ? mutex_lock_io_nested+0x60/0x60 [ 51.921900][ T3609] mutex_lock_nested+0x17/0x20 [ 51.926653][ T3609] do_journal_begin_r+0x340/0x1070 [ 51.931758][ T3609] ? journal_join_abort+0xe0/0xe0 [ 51.936769][ T3609] ? print_irqtrace_events+0x220/0x220 [ 51.942218][ T3609] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 51.948014][ T3609] ? lockdep_hardirqs_on+0x8d/0x130 [ 51.953203][ T3609] journal_begin+0x14b/0x350 [ 51.957781][ T3609] reiserfs_dirty_inode+0x108/0x230 [ 51.962987][ T3609] ? reiserfs_free_inode+0x20/0x20 [ 51.968097][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.973720][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.979690][ T3609] ? current_time+0x1d7/0x300 [ 51.984368][ T3609] ? reiserfs_free_inode+0x20/0x20 [ 51.989663][ T3609] __mark_inode_dirty+0x1e7/0x600 [ 51.994693][ T3609] ? __might_fault+0xb2/0x110 [ 51.999383][ T3609] reiserfs_ioctl+0x293/0x340 [ 52.004061][ T3609] ? __se_sys_ioctl+0xf0/0x170 [ 52.008815][ T3609] ? reiserfs_unpack+0x390/0x390 [ 52.013746][ T3609] __se_sys_ioctl+0xfb/0x170 [ 52.018332][ T3609] do_syscall_64+0x3d/0xb0 [ 52.022749][ T3609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.028636][ T3609] RIP: 0033:0x7ff0b05d61c9 [ 52.033038][ T3609] 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 [ 52.052716][ T3609] RSP: 002b:00007ffd79a39948 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 52.061115][ T3609] RAX: