./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1992097598 <...> Warning: Permanently added '10.128.1.1' (ECDSA) to the list of known hosts. execve("./syz-executor1992097598", ["./syz-executor1992097598"], 0x7ffc45671fa0 /* 10 vars */) = 0 brk(NULL) = 0x5555571c1000 brk(0x5555571c1c40) = 0x5555571c1c40 arch_prctl(ARCH_SET_FS, 0x5555571c1300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1992097598", 4096) = 28 brk(0x5555571e2c40) = 0x5555571e2c40 brk(0x5555571e3000) = 0x5555571e3000 mprotect(0x7fcc2f9ae000, 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 [ 44.378689][ T3613] loop0: detected capacity change from 0 to 8192 [ 44.389725][ T3613] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 44.402878][ T3613] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 44.412383][ T3613] REISERFS (device loop0): using ordered data mode [ 44.418886][ T3613] 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 ioctl(5, F2FS_IOC_GARBAGE_COLLECT, 0) = -1 ENOTTY (Inappropriate ioctl for device) write(-1, " ", 1) = -1 EBADF (Bad file descriptor) [ 44.425371][ T3613] 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 [ 44.441813][ T3613] REISERFS (device loop0): checking transaction log (loop0) [ 44.450707][ T3613] REISERFS (device loop0): Using rupasov hash to sort names [ 44.459229][ T3613] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 44.476328][ T3613] [ 44.478681][ T3613] ====================================================== [ 44.485696][ T3613] WARNING: possible circular locking dependency detected [ 44.492795][ T3613] 6.1.0-rc4-syzkaller-00356-g8f2975c2bb4c #0 Not tainted [ 44.499809][ T3613] ------------------------------------------------------ [ 44.506819][ T3613] syz-executor199/3613 is trying to acquire lock: [ 44.513207][ T3613] ffffc90003d710f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070 [ 44.522932][ T3613] [ 44.522932][ T3613] but task is already holding lock: [ 44.530271][ T3613] ffff8880275e4460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 44.539464][ T3613] [ 44.539464][ T3613] which lock already depends on the new lock. [ 44.539464][ T3613] [ 44.549840][ T3613] [ 44.549840][ T3613] the existing dependency chain (in reverse order) is: [ 44.559011][ T3613] [ 44.559011][ T3613] -> #2 (sb_writers#9){.+.+}-{0:0}: [ 44.566383][ T3613] lock_acquire+0x182/0x3c0 [ 44.571393][ T3613] sb_start_write+0x4d/0x1a0 [ 44.576488][ T3613] mnt_want_write_file+0x5a/0x1f0 [ 44.582010][ T3613] reiserfs_ioctl+0x16e/0x340 [ 44.587191][ T3613] __se_sys_ioctl+0xfb/0x170 [ 44.592282][ T3613] do_syscall_64+0x3d/0xb0 [ 44.597212][ T3613] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 44.603607][ T3613] [ 44.603607][ T3613] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 44.610800][ T3613] lock_acquire+0x182/0x3c0 [ 44.615803][ T3613] __mutex_lock_common+0x1bd/0x26e0 [ 44.621499][ T3613] mutex_lock_nested+0x17/0x20 [ 44.626760][ T3613] reiserfs_write_lock_nested+0x5b/0xd0 [ 44.632806][ T3613] do_journal_begin_r+0x34b/0x1070 [ 44.638415][ T3613] journal_begin+0x14b/0x350 [ 44.643505][ T3613] reiserfs_fill_super+0x172b/0x24a0 [ 44.649289][ T3613] mount_bdev+0x26c/0x3a0 [ 44.654116][ T3613] legacy_get_tree+0xea/0x180 [ 44.659293][ T3613] vfs_get_tree+0x88/0x270 [ 44.664207][ T3613] do_new_mount+0x289/0xad0 [ 44.669208][ T3613] __se_sys_mount+0x2d3/0x3c0 [ 44.674383][ T3613] do_syscall_64+0x3d/0xb0 [ 44.679298][ T3613] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 44.685706][ T3613] [ 44.685706][ T3613] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 44.693506][ T3613] validate_chain+0x1898/0x6ae0 [ 44.698872][ T3613] __lock_acquire+0x1292/0x1f60 [ 44.704227][ T3613] lock_acquire+0x182/0x3c0 [ 44.709232][ T3613] __mutex_lock_common+0x1bd/0x26e0 [ 44.714927][ T3613] mutex_lock_nested+0x17/0x20 [ 44.720185][ T3613] do_journal_begin_r+0x340/0x1070 [ 44.725797][ T3613] journal_begin+0x14b/0x350 [ 44.730887][ T3613] reiserfs_dirty_inode+0x108/0x230 [ 44.736595][ T3613] __mark_inode_dirty+0x1e7/0x600 [ 44.742130][ T3613] reiserfs_ioctl+0x293/0x340 [ 44.747307][ T3613] __se_sys_ioctl+0xfb/0x170 [ 44.752398][ T3613] do_syscall_64+0x3d/0xb0 [ 44.757321][ T3613] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 44.763714][ T3613] [ 44.763714][ T3613] other info that might help us debug this: [ 44.763714][ T3613] [ 44.773915][ T3613] Chain exists of: [ 44.773915][ T3613] &journal->j_mutex --> &sbi->lock --> sb_writers#9 [ 44.773915][ T3613] [ 44.786401][ T3613] Possible unsafe locking scenario: [ 44.786401][ T3613] [ 44.793827][ T3613] CPU0 CPU1 [ 44.799169][ T3613] ---- ---- [ 44.804508][ T3613] lock(sb_writers#9); [ 44.808673][ T3613] lock(&sbi->lock); [ 44.815149][ T3613] lock(sb_writers#9); [ 44.821814][ T3613] lock(&journal->j_mutex); [ 44.826381][ T3613] [ 44.826381][ T3613] *** DEADLOCK *** [ 44.826381][ T3613] [ 44.834497][ T3613] 1 lock held by syz-executor199/3613: [ 44.839928][ T3613] #0: ffff8880275e4460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 44.849572][ T3613] [ 44.849572][ T3613] stack backtrace: [ 44.855445][ T3613] CPU: 1 PID: 3613 Comm: syz-executor199 Not tainted 6.1.0-rc4-syzkaller-00356-g8f2975c2bb4c #0 [ 44.865831][ T3613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 44.875948][ T3613] Call Trace: [ 44.879207][ T3613] [ 44.882122][ T3613] dump_stack_lvl+0x1b1/0x28e [ 44.886780][ T3613] ? nf_tcp_handle_invalid+0x62e/0x62e [ 44.892218][ T3613] ? print_circular_bug+0x13e/0x1c0 [ 44.897398][ T3613] check_noncircular+0x2cc/0x390 [ 44.902316][ T3613] ? add_chain_block+0x850/0x850 [ 44.907232][ T3613] ? lockdep_lock+0x102/0x290 [ 44.911890][ T3613] ? _find_first_zero_bit+0xe8/0x110 [ 44.917152][ T3613] validate_chain+0x1898/0x6ae0 [ 44.921987][ T3613] ? reacquire_held_locks+0x650/0x650 [ 44.927336][ T3613] ? __kernel_text_address+0x9/0x40 [ 44.932514][ T3613] ? unwind_get_return_address+0x48/0x80 [ 44.938127][ T3613] ? arch_stack_walk+0x98/0xe0 [ 44.942867][ T3613] ? stack_trace_save+0x104/0x1e0 [ 44.947869][ T3613] ? stack_trace_snprint+0xf0/0xf0 [ 44.952958][ T3613] ? check_noncircular+0x1aa/0x390 [ 44.958049][ T3613] ? add_chain_block+0x850/0x850 [ 44.962966][ T3613] ? lockdep_unlock+0x144/0x2e0 [ 44.967794][ T3613] ? lockdep_lock+0x290/0x290 [ 44.972448][ T3613] ? add_lock_to_list+0x1c7/0x2d0 [ 44.977452][ T3613] ? validate_chain+0x1478/0x6ae0 [ 44.982460][ T3613] ? reacquire_held_locks+0x650/0x650 [ 44.987812][ T3613] ? lockdep_unlock+0x144/0x2e0 [ 44.992639][ T3613] ? lockdep_lock+0x290/0x290 [ 44.997291][ T3613] ? add_lock_to_list+0x1c7/0x2d0 [ 45.002298][ T3613] ? validate_chain+0x1478/0x6ae0 [ 45.007309][ T3613] ? reacquire_held_locks+0x650/0x650 [ 45.012661][ T3613] ? reacquire_held_locks+0x650/0x650 [ 45.018012][ T3613] ? is_bpf_text_address+0x253/0x270 [ 45.023282][ T3613] ? stack_trace_save+0x1e0/0x1e0 [ 45.028288][ T3613] ? __kernel_text_address+0x9/0x40 [ 45.033465][ T3613] ? unwind_get_return_address+0x48/0x80 [ 45.039078][ T3613] ? arch_stack_walk+0x98/0xe0 [ 45.043820][ T3613] ? stack_trace_save+0x104/0x1e0 [ 45.048822][ T3613] ? stack_trace_snprint+0xf0/0xf0 [ 45.053914][ T3613] ? lockdep_unlock+0x144/0x2e0 [ 45.058745][ T3613] ? lockdep_lock+0x290/0x290 [ 45.063405][ T3613] ? stack_trace_save+0x1e0/0x1e0 [ 45.068409][ T3613] ? rcu_read_lock_sched_held+0x87/0x110 [ 45.074021][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 45.079981][ T3613] ? rcu_lock_release+0x5/0x20 [ 45.084729][ T3613] ? read_lock_is_recursive+0x10/0x10 [ 45.090081][ T3613] ? rcu_lock_release+0x5/0x20 [ 45.094824][ T3613] ? __lock_acquire+0x1f60/0x1f60 [ 45.099827][ T3613] ? deref_stack_reg+0x17a/0x210 [ 45.104747][ T3613] ? preempt_count_add+0x8d/0x180 [ 45.109755][ T3613] ? stack_trace_save+0x1e0/0x1e0 [ 45.115107][ T3613] ? is_bpf_text_address+0x253/0x270 [ 45.120370][ T3613] ? stack_trace_save+0x1e0/0x1e0 [ 45.125375][ T3613] ? stack_trace_save+0x1e0/0x1e0 [ 45.130377][ T3613] ? rcu_read_lock_sched_held+0x87/0x110 [ 45.135988][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 45.141946][ T3613] ? rcu_lock_release+0x5/0x20 [ 45.146691][ T3613] ? read_lock_is_recursive+0x10/0x10 [ 45.152044][ T3613] ? rcu_lock_release+0x5/0x20 [ 45.156787][ T3613] ? __lock_acquire+0x1f60/0x1f60 [ 45.161787][ T3613] ? deref_stack_reg+0x17a/0x210 [ 45.166707][ T3613] ? stack_trace_save+0x1e0/0x1e0 [ 45.171713][ T3613] ? rcu_read_lock_sched_held+0x87/0x110 [ 45.177320][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 45.183278][ T3613] ? rcu_lock_release+0x5/0x20 [ 45.188020][ T3613] ? read_lock_is_recursive+0x10/0x10 [ 45.193373][ T3613] ? rcu_lock_release+0x5/0x20 [ 45.198114][ T3613] ? __lock_acquire+0x1f60/0x1f60 [ 45.203117][ T3613] ? deref_stack_reg+0x17a/0x210 [ 45.208035][ T3613] ? mark_lock+0x9a/0x350 [ 45.212343][ T3613] ? __lock_acquire+0x1292/0x1f60 [ 45.217350][ T3613] ? mark_lock+0x9a/0x350 [ 45.221660][ T3613] __lock_acquire+0x1292/0x1f60 [ 45.226493][ T3613] lock_acquire+0x182/0x3c0 [ 45.230976][ T3613] ? do_journal_begin_r+0x340/0x1070 [ 45.236240][ T3613] ? read_lock_is_recursive+0x10/0x10 [ 45.241592][ T3613] ? __might_sleep+0xc0/0xc0 [ 45.246161][ T3613] ? reiserfs_write_unlock_nested+0xd0/0x120 [ 45.252121][ T3613] ? __lock_acquire+0x1f60/0x1f60 [ 45.257126][ T3613] __mutex_lock_common+0x1bd/0x26e0 [ 45.262307][ T3613] ? do_journal_begin_r+0x340/0x1070 [ 45.267571][ T3613] ? __mutex_unlock_slowpath+0x222/0x770 [ 45.273180][ T3613] ? do_journal_begin_r+0x340/0x1070 [ 45.278440][ T3613] ? mutex_unlock+0x10/0x10 [ 45.282917][ T3613] ? mutex_lock_io_nested+0x60/0x60 [ 45.288094][ T3613] mutex_lock_nested+0x17/0x20 [ 45.293095][ T3613] do_journal_begin_r+0x340/0x1070 [ 45.298188][ T3613] ? journal_join_abort+0xe0/0xe0 [ 45.303189][ T3613] ? print_irqtrace_events+0x220/0x220 [ 45.308656][ T3613] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 45.314439][ T3613] ? lockdep_hardirqs_on+0x8d/0x130 [ 45.319640][ T3613] journal_begin+0x14b/0x350 [ 45.324228][ T3613] reiserfs_dirty_inode+0x108/0x230 [ 45.329428][ T3613] ? reiserfs_free_inode+0x20/0x20 [ 45.334539][ T3613] ? rcu_read_lock_sched_held+0x87/0x110 [ 45.340159][ T3613] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 45.346134][ T3613] ? current_time+0x1d7/0x300 [ 45.350800][ T3613] ? reiserfs_free_inode+0x20/0x20 [ 45.355900][ T3613] __mark_inode_dirty+0x1e7/0x600 [ 45.360920][ T3613] ? __might_fault+0xb2/0x110 [ 45.365582][ T3613] reiserfs_ioctl+0x293/0x340 [ 45.370240][ T3613] ? __se_sys_ioctl+0xf0/0x170 [ 45.374987][ T3613] ? reiserfs_unpack+0x390/0x390 [ 45.379904][ T3613] __se_sys_ioctl+0xfb/0x170 [ 45.384475][ T3613] do_syscall_64+0x3d/0xb0 [ 45.388889][ T3613] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 45.394773][ T3613] RIP: 0033:0x7fcc2f942199 [ 45.399184][ T3613] 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 [ 45.418802][ T3613] RSP: 002b:00007fff68b622b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 45.427204][ T3613] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: