./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1160147531 <...> Warning: Permanently added '10.128.0.88' (ECDSA) to the list of known hosts. execve("./syz-executor1160147531", ["./syz-executor1160147531"], 0x7fffc6b42c80 /* 10 vars */) = 0 brk(NULL) = 0x555557050000 brk(0x555557050c40) = 0x555557050c40 arch_prctl(ARCH_SET_FS, 0x555557050300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1160147531", 4096) = 28 brk(0x555557071c40) = 0x555557071c40 brk(0x555557072000) = 0x555557072000 mprotect(0x7f4f0dd10000, 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 [ 50.617567][ T3610] loop0: detected capacity change from 0 to 8192 [ 50.628583][ T3610] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 50.641690][ T3610] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 50.650977][ T3610] REISERFS (device loop0): using ordered data mode [ 50.657941][ T3610] 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) [ 50.664118][ T3610] 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 [ 50.681418][ T3610] REISERFS (device loop0): checking transaction log (loop0) [ 50.691019][ T3610] REISERFS (device loop0): Using rupasov hash to sort names [ 50.699178][ T3610] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 50.720067][ T3610] [ 50.722426][ T3610] ====================================================== [ 50.729446][ T3610] WARNING: possible circular locking dependency detected [ 50.736462][ T3610] 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0 Not tainted [ 50.743462][ T3610] ------------------------------------------------------ [ 50.750458][ T3610] syz-executor116/3610 is trying to acquire lock: [ 50.756850][ T3610] ffffc90003d710f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070 [ 50.766575][ T3610] [ 50.766575][ T3610] but task is already holding lock: [ 50.773915][ T3610] ffff888025930460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 50.783107][ T3610] [ 50.783107][ T3610] which lock already depends on the new lock. [ 50.783107][ T3610] [ 50.793483][ T3610] [ 50.793483][ T3610] the existing dependency chain (in reverse order) is: [ 50.802471][ T3610] [ 50.802471][ T3610] -> #2 (sb_writers#9){.+.+}-{0:0}: [ 50.809828][ T3610] lock_acquire+0x182/0x3c0 [ 50.814832][ T3610] sb_start_write+0x4d/0x1a0 [ 50.819921][ T3610] mnt_want_write_file+0x5a/0x1f0 [ 50.825444][ T3610] reiserfs_ioctl+0x16e/0x340 [ 50.830637][ T3610] __se_sys_ioctl+0xfb/0x170 [ 50.835749][ T3610] do_syscall_64+0x3d/0xb0 [ 50.840689][ T3610] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 50.847094][ T3610] [ 50.847094][ T3610] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 50.854290][ T3610] lock_acquire+0x182/0x3c0 [ 50.859304][ T3610] __mutex_lock_common+0x1bd/0x26e0 [ 50.865102][ T3610] mutex_lock_nested+0x17/0x20 [ 50.870372][ T3610] reiserfs_write_lock_nested+0x5b/0xd0 [ 50.876424][ T3610] do_journal_begin_r+0x34b/0x1070 [ 50.882037][ T3610] journal_begin+0x14b/0x350 [ 50.887126][ T3610] reiserfs_fill_super+0x172b/0x24a0 [ 50.892998][ T3610] mount_bdev+0x26c/0x3a0 [ 50.897826][ T3610] legacy_get_tree+0xea/0x180 [ 50.903005][ T3610] vfs_get_tree+0x88/0x270 [ 50.907918][ T3610] do_new_mount+0x289/0xad0 [ 50.912918][ T3610] __se_sys_mount+0x2d3/0x3c0 [ 50.918097][ T3610] do_syscall_64+0x3d/0xb0 [ 50.923013][ T3610] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 50.929405][ T3610] [ 50.929405][ T3610] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 50.937195][ T3610] validate_chain+0x1898/0x6ae0 [ 50.942545][ T3610] __lock_acquire+0x1292/0x1f60 [ 50.947896][ T3610] lock_acquire+0x182/0x3c0 [ 50.952897][ T3610] __mutex_lock_common+0x1bd/0x26e0 [ 50.958595][ T3610] mutex_lock_nested+0x17/0x20 [ 50.963865][ T3610] do_journal_begin_r+0x340/0x1070 [ 50.969482][ T3610] journal_begin+0x14b/0x350 [ 50.974571][ T3610] reiserfs_dirty_inode+0x108/0x230 [ 50.980272][ T3610] __mark_inode_dirty+0x1e7/0x600 [ 50.985794][ T3610] reiserfs_ioctl+0x293/0x340 [ 50.990994][ T3610] __se_sys_ioctl+0xfb/0x170 [ 50.996086][ T3610] do_syscall_64+0x3d/0xb0 [ 51.001003][ T3610] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 51.007402][ T3610] [ 51.007402][ T3610] other info that might help us debug this: [ 51.007402][ T3610] [ 51.017603][ T3610] Chain exists of: [ 51.017603][ T3610] &journal->j_mutex --> &sbi->lock --> sb_writers#9 [ 51.017603][ T3610] [ 51.030085][ T3610] Possible unsafe locking scenario: [ 51.030085][ T3610] [ 51.037506][ T3610] CPU0 CPU1 [ 51.042847][ T3610] ---- ---- [ 51.048186][ T3610] lock(sb_writers#9); [ 51.052332][ T3610] lock(&sbi->lock); [ 51.058807][ T3610] lock(sb_writers#9); [ 51.065459][ T3610] lock(&journal->j_mutex); [ 51.070023][ T3610] [ 51.070023][ T3610] *** DEADLOCK *** [ 51.070023][ T3610] [ 51.078147][ T3610] 1 lock held by syz-executor116/3610: [ 51.083576][ T3610] #0: ffff888025930460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 51.093201][ T3610] [ 51.093201][ T3610] stack backtrace: [ 51.099065][ T3610] CPU: 1 PID: 3610 Comm: syz-executor116 Not tainted 6.1.0-rc3-syzkaller-00288-gb208b9fbbcba #0 [ 51.109448][ T3610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 51.119479][ T3610] Call Trace: [ 51.122918][ T3610] [ 51.125830][ T3610] dump_stack_lvl+0x1b1/0x28e [ 51.130574][ T3610] ? nf_tcp_handle_invalid+0x62e/0x62e [ 51.136012][ T3610] ? print_circular_bug+0x13e/0x1c0 [ 51.141200][ T3610] check_noncircular+0x2cc/0x390 [ 51.146152][ T3610] ? add_chain_block+0x850/0x850 [ 51.151067][ T3610] ? lockdep_lock+0x102/0x290 [ 51.155726][ T3610] ? _find_first_zero_bit+0xe8/0x110 [ 51.160991][ T3610] validate_chain+0x1898/0x6ae0 [ 51.165823][ T3610] ? reacquire_held_locks+0x650/0x650 [ 51.171179][ T3610] ? __kernel_text_address+0x9/0x40 [ 51.176362][ T3610] ? unwind_get_return_address+0x48/0x80 [ 51.181975][ T3610] ? arch_stack_walk+0x98/0xe0 [ 51.186727][ T3610] ? stack_trace_save+0x104/0x1e0 [ 51.191730][ T3610] ? stack_trace_snprint+0xf0/0xf0 [ 51.196819][ T3610] ? check_noncircular+0x1aa/0x390 [ 51.201910][ T3610] ? add_chain_block+0x850/0x850 [ 51.206827][ T3610] ? lockdep_unlock+0x144/0x2e0 [ 51.211654][ T3610] ? lockdep_lock+0x290/0x290 [ 51.216306][ T3610] ? add_lock_to_list+0x1c7/0x2d0 [ 51.221320][ T3610] ? validate_chain+0x1478/0x6ae0 [ 51.226338][ T3610] ? reacquire_held_locks+0x650/0x650 [ 51.231698][ T3610] ? lockdep_unlock+0x144/0x2e0 [ 51.236540][ T3610] ? lockdep_lock+0x290/0x290 [ 51.241214][ T3610] ? add_lock_to_list+0x1c7/0x2d0 [ 51.246237][ T3610] ? validate_chain+0x1478/0x6ae0 [ 51.251262][ T3610] ? reacquire_held_locks+0x650/0x650 [ 51.256617][ T3610] ? reacquire_held_locks+0x650/0x650 [ 51.261978][ T3610] ? is_bpf_text_address+0x253/0x270 [ 51.267331][ T3610] ? stack_trace_save+0x1e0/0x1e0 [ 51.272344][ T3610] ? __kernel_text_address+0x9/0x40 [ 51.277520][ T3610] ? unwind_get_return_address+0x48/0x80 [ 51.283132][ T3610] ? arch_stack_walk+0x98/0xe0 [ 51.287884][ T3610] ? stack_trace_save+0x104/0x1e0 [ 51.292886][ T3610] ? stack_trace_snprint+0xf0/0xf0 [ 51.297980][ T3610] ? lockdep_unlock+0x144/0x2e0 [ 51.302808][ T3610] ? lockdep_lock+0x290/0x290 [ 51.307465][ T3610] ? stack_trace_save+0x1e0/0x1e0 [ 51.312474][ T3610] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.318084][ T3610] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.324042][ T3610] ? rcu_lock_release+0x5/0x20 [ 51.328797][ T3610] ? read_lock_is_recursive+0x10/0x10 [ 51.334148][ T3610] ? rcu_lock_release+0x5/0x20 [ 51.338890][ T3610] ? __lock_acquire+0x1f60/0x1f60 [ 51.343893][ T3610] ? deref_stack_reg+0x17a/0x210 [ 51.348811][ T3610] ? preempt_count_add+0x8d/0x180 [ 51.353816][ T3610] ? stack_trace_save+0x1e0/0x1e0 [ 51.358823][ T3610] ? is_bpf_text_address+0x253/0x270 [ 51.364089][ T3610] ? stack_trace_save+0x1e0/0x1e0 [ 51.369094][ T3610] ? stack_trace_save+0x1e0/0x1e0 [ 51.374098][ T3610] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.379707][ T3610] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.385665][ T3610] ? rcu_lock_release+0x5/0x20 [ 51.390409][ T3610] ? read_lock_is_recursive+0x10/0x10 [ 51.395761][ T3610] ? rcu_lock_release+0x5/0x20 [ 51.400503][ T3610] ? __lock_acquire+0x1f60/0x1f60 [ 51.405506][ T3610] ? deref_stack_reg+0x17a/0x210 [ 51.410426][ T3610] ? stack_trace_save+0x1e0/0x1e0 [ 51.415432][ T3610] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.421043][ T3610] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.427006][ T3610] ? rcu_lock_release+0x5/0x20 [ 51.431753][ T3610] ? read_lock_is_recursive+0x10/0x10 [ 51.437102][ T3610] ? rcu_lock_release+0x5/0x20 [ 51.441847][ T3610] ? __lock_acquire+0x1f60/0x1f60 [ 51.446861][ T3610] ? deref_stack_reg+0x17a/0x210 [ 51.451788][ T3610] ? mark_lock+0x9a/0x350 [ 51.456118][ T3610] ? __lock_acquire+0x1292/0x1f60 [ 51.461140][ T3610] ? mark_lock+0x9a/0x350 [ 51.465462][ T3610] __lock_acquire+0x1292/0x1f60 [ 51.470299][ T3610] lock_acquire+0x182/0x3c0 [ 51.474784][ T3610] ? do_journal_begin_r+0x340/0x1070 [ 51.480050][ T3610] ? read_lock_is_recursive+0x10/0x10 [ 51.485406][ T3610] ? __might_sleep+0xc0/0xc0 [ 51.489979][ T3610] ? reiserfs_write_unlock_nested+0xd0/0x120 [ 51.495942][ T3610] ? __lock_acquire+0x1f60/0x1f60 [ 51.500948][ T3610] __mutex_lock_common+0x1bd/0x26e0 [ 51.506122][ T3610] ? do_journal_begin_r+0x340/0x1070 [ 51.511386][ T3610] ? __mutex_unlock_slowpath+0x222/0x770 [ 51.516995][ T3610] ? do_journal_begin_r+0x340/0x1070 [ 51.522280][ T3610] ? mutex_unlock+0x10/0x10 [ 51.526759][ T3610] ? mutex_lock_io_nested+0x60/0x60 [ 51.531937][ T3610] mutex_lock_nested+0x17/0x20 [ 51.536677][ T3610] do_journal_begin_r+0x340/0x1070 [ 51.541775][ T3610] ? journal_join_abort+0xe0/0xe0 [ 51.546775][ T3610] ? print_irqtrace_events+0x220/0x220 [ 51.552225][ T3610] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 51.558019][ T3610] ? lockdep_hardirqs_on+0x8d/0x130 [ 51.563203][ T3610] journal_begin+0x14b/0x350 [ 51.567780][ T3610] reiserfs_dirty_inode+0x108/0x230 [ 51.572966][ T3610] ? reiserfs_free_inode+0x20/0x20 [ 51.578061][ T3610] ? rcu_read_lock_sched_held+0x87/0x110 [ 51.583672][ T3610] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.589630][ T3610] ? current_time+0x1d7/0x300 [ 51.594294][ T3610] ? reiserfs_free_inode+0x20/0x20 [ 51.599387][ T3610] __mark_inode_dirty+0x1e7/0x600 [ 51.604393][ T3610] ? __might_fault+0xb2/0x110 [ 51.609051][ T3610] reiserfs_ioctl+0x293/0x340 [ 51.613708][ T3610] ? __se_sys_ioctl+0xf0/0x170 [ 51.618455][ T3610] ? reiserfs_unpack+0x390/0x390 [ 51.623378][ T3610] __se_sys_ioctl+0xfb/0x170 [ 51.627948][ T3610] do_syscall_64+0x3d/0xb0 [ 51.632345][ T3610] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 51.638218][ T3610] RIP: 0033:0x7f4f0dca41c9 [ 51.642620][ T3610] 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 [ 51.662202][ T3610] RSP: 002b:00007ffd9e68eac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 51.670591][ T3610] RAX: ffffffffffffffda R