./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3072520580 <...> Warning: Permanently added '10.128.1.96' (ECDSA) to the list of known hosts. execve("./syz-executor3072520580", ["./syz-executor3072520580"], 0x7ffe87406d10 /* 10 vars */) = 0 brk(NULL) = 0x555555971000 brk(0x555555971c40) = 0x555555971c40 arch_prctl(ARCH_SET_FS, 0x555555971300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3072520580", 4096) = 28 brk(0x555555992c40) = 0x555555992c40 brk(0x555555993000) = 0x555555993000 mprotect(0x7fe1f11c2000, 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 [ 52.955126][ T3631] loop0: detected capacity change from 0 to 8192 [ 52.966880][ T3631] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 52.980010][ T3631] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 52.989260][ T3631] REISERFS (device loop0): using ordered data mode [ 52.995969][ T3631] 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 [ 53.002167][ T3631] 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 [ 53.018827][ T3631] REISERFS (device loop0): checking transaction log (loop0) [ 53.028322][ T3631] REISERFS (device loop0): Using rupasov hash to sort names [ 53.036449][ T3631] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 53.052602][ T3631] ioctl(-1, _IOC(_IOC_WRITE, 0x66, 0x8, 0x28), 0x20000080) = -1 EBADF (Bad file descriptor) [ 53.054947][ T3631] ====================================================== [ 53.061960][ T3631] WARNING: possible circular locking dependency detected [ 53.068979][ T3631] 6.1.0-rc5-syzkaller-00103-g81ac25651a62 #0 Not tainted [ 53.075988][ T3631] ------------------------------------------------------ [ 53.082986][ T3631] syz-executor307/3631 is trying to acquire lock: [ 53.089373][ T3631] ffffc90003a610f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070 [ 53.099097][ T3631] [ 53.099097][ T3631] but task is already holding lock: [ 53.106442][ T3631] ffff888026060460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 53.115639][ T3631] [ 53.115639][ T3631] which lock already depends on the new lock. [ 53.115639][ T3631] [ 53.126016][ T3631] [ 53.126016][ T3631] the existing dependency chain (in reverse order) is: [ 53.135003][ T3631] [ 53.135003][ T3631] -> #2 (sb_writers#9){.+.+}-{0:0}: [ 53.142361][ T3631] lock_acquire+0x182/0x3c0 [ 53.147363][ T3631] sb_start_write+0x4d/0x1a0 [ 53.152453][ T3631] mnt_want_write_file+0x5a/0x1f0 [ 53.157976][ T3631] reiserfs_ioctl+0x16e/0x340 [ 53.163151][ T3631] __se_sys_ioctl+0xfb/0x170 [ 53.168239][ T3631] do_syscall_64+0x3d/0xb0 [ 53.173164][ T3631] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.179554][ T3631] [ 53.179554][ T3631] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 53.186732][ T3631] lock_acquire+0x182/0x3c0 [ 53.191737][ T3631] __mutex_lock_common+0x1bd/0x26e0 [ 53.197435][ T3631] mutex_lock_nested+0x17/0x20 [ 53.202698][ T3631] reiserfs_write_lock_nested+0x5b/0xd0 [ 53.208744][ T3631] do_journal_begin_r+0x34b/0x1070 [ 53.214352][ T3631] journal_begin+0x14b/0x350 [ 53.219441][ T3631] reiserfs_fill_super+0x172b/0x24a0 [ 53.225224][ T3631] mount_bdev+0x26c/0x3a0 [ 53.230049][ T3631] legacy_get_tree+0xea/0x180 [ 53.235226][ T3631] vfs_get_tree+0x88/0x270 [ 53.240137][ T3631] do_new_mount+0x289/0xad0 [ 53.245140][ T3631] __se_sys_mount+0x2d3/0x3c0 [ 53.250316][ T3631] do_syscall_64+0x3d/0xb0 [ 53.255229][ T3631] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.261620][ T3631] [ 53.261620][ T3631] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 53.269407][ T3631] validate_chain+0x1898/0x6ae0 [ 53.274763][ T3631] __lock_acquire+0x1292/0x1f60 [ 53.280110][ T3631] lock_acquire+0x182/0x3c0 [ 53.285108][ T3631] __mutex_lock_common+0x1bd/0x26e0 [ 53.290805][ T3631] mutex_lock_nested+0x17/0x20 [ 53.296067][ T3631] do_journal_begin_r+0x340/0x1070 [ 53.301676][ T3631] journal_begin+0x14b/0x350 [ 53.306763][ T3631] reiserfs_dirty_inode+0x108/0x230 [ 53.312463][ T3631] __mark_inode_dirty+0x1e7/0x600 [ 53.317988][ T3631] reiserfs_ioctl+0x293/0x340 [ 53.323163][ T3631] __se_sys_ioctl+0xfb/0x170 [ 53.328254][ T3631] do_syscall_64+0x3d/0xb0 [ 53.333168][ T3631] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.339562][ T3631] [ 53.339562][ T3631] other info that might help us debug this: [ 53.339562][ T3631] [ 53.349766][ T3631] Chain exists of: [ 53.349766][ T3631] &journal->j_mutex --> &sbi->lock --> sb_writers#9 [ 53.349766][ T3631] [ 53.362250][ T3631] Possible unsafe locking scenario: [ 53.362250][ T3631] [ 53.369682][ T3631] CPU0 CPU1 [ 53.375024][ T3631] ---- ---- [ 53.380363][ T3631] lock(sb_writers#9); [ 53.384499][ T3631] lock(&sbi->lock); [ 53.390974][ T3631] lock(sb_writers#9); [ 53.397625][ T3631] lock(&journal->j_mutex); [ 53.402190][ T3631] [ 53.402190][ T3631] *** DEADLOCK *** [ 53.402190][ T3631] [ 53.410307][ T3631] 1 lock held by syz-executor307/3631: [ 53.415737][ T3631] #0: ffff888026060460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 53.425371][ T3631] [ 53.425371][ T3631] stack backtrace: [ 53.431233][ T3631] CPU: 0 PID: 3631 Comm: syz-executor307 Not tainted 6.1.0-rc5-syzkaller-00103-g81ac25651a62 #0 [ 53.441614][ T3631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 53.451644][ T3631] Call Trace: [ 53.454904][ T3631] [ 53.457817][ T3631] dump_stack_lvl+0x1b1/0x28e [ 53.462479][ T3631] ? nf_tcp_handle_invalid+0x62e/0x62e [ 53.467918][ T3631] ? print_circular_bug+0x13e/0x1c0 [ 53.473094][ T3631] check_noncircular+0x2cc/0x390 [ 53.478010][ T3631] ? add_chain_block+0x850/0x850 [ 53.482926][ T3631] ? lockdep_lock+0x102/0x290 [ 53.487582][ T3631] ? _find_first_zero_bit+0xe8/0x110 [ 53.492843][ T3631] validate_chain+0x1898/0x6ae0 [ 53.497681][ T3631] ? reacquire_held_locks+0x650/0x650 [ 53.503031][ T3631] ? __kernel_text_address+0x9/0x40 [ 53.508209][ T3631] ? unwind_get_return_address+0x48/0x80 [ 53.513820][ T3631] ? arch_stack_walk+0x98/0xe0 [ 53.518563][ T3631] ? stack_trace_save+0x104/0x1e0 [ 53.523566][ T3631] ? stack_trace_snprint+0xf0/0xf0 [ 53.528655][ T3631] ? check_noncircular+0x1aa/0x390 [ 53.533744][ T3631] ? add_chain_block+0x850/0x850 [ 53.538662][ T3631] ? lockdep_unlock+0x144/0x2e0 [ 53.543489][ T3631] ? lockdep_lock+0x290/0x290 [ 53.548142][ T3631] ? add_lock_to_list+0x1c7/0x2d0 [ 53.553146][ T3631] ? validate_chain+0x1478/0x6ae0 [ 53.558152][ T3631] ? reacquire_held_locks+0x650/0x650 [ 53.563502][ T3631] ? lockdep_unlock+0x144/0x2e0 [ 53.568329][ T3631] ? lockdep_lock+0x290/0x290 [ 53.572982][ T3631] ? add_lock_to_list+0x1c7/0x2d0 [ 53.578002][ T3631] ? validate_chain+0x1478/0x6ae0 [ 53.583020][ T3631] ? reacquire_held_locks+0x650/0x650 [ 53.588372][ T3631] ? reacquire_held_locks+0x650/0x650 [ 53.593806][ T3631] ? is_bpf_text_address+0x253/0x270 [ 53.599068][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.604071][ T3631] ? __kernel_text_address+0x9/0x40 [ 53.609250][ T3631] ? unwind_get_return_address+0x48/0x80 [ 53.614861][ T3631] ? arch_stack_walk+0x98/0xe0 [ 53.619606][ T3631] ? stack_trace_save+0x104/0x1e0 [ 53.624608][ T3631] ? stack_trace_snprint+0xf0/0xf0 [ 53.629699][ T3631] ? lockdep_unlock+0x144/0x2e0 [ 53.634525][ T3631] ? lockdep_lock+0x290/0x290 [ 53.639180][ T3631] ? lockdep_unlock+0x144/0x2e0 [ 53.644011][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.649013][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 53.654624][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 53.660584][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.665332][ T3631] ? read_lock_is_recursive+0x10/0x10 [ 53.670683][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.675424][ T3631] ? __lock_acquire+0x1f60/0x1f60 [ 53.680428][ T3631] ? deref_stack_reg+0x17a/0x210 [ 53.685348][ T3631] ? preempt_count_add+0x8d/0x180 [ 53.690354][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.695355][ T3631] ? is_bpf_text_address+0x253/0x270 [ 53.700616][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.705624][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.710640][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 53.716274][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 53.722247][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.727007][ T3631] ? read_lock_is_recursive+0x10/0x10 [ 53.732366][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.737117][ T3631] ? __lock_acquire+0x1f60/0x1f60 [ 53.742125][ T3631] ? deref_stack_reg+0x17a/0x210 [ 53.747050][ T3631] ? stack_trace_save+0x1e0/0x1e0 [ 53.752059][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 53.757669][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 53.763627][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.768378][ T3631] ? read_lock_is_recursive+0x10/0x10 [ 53.773775][ T3631] ? rcu_lock_release+0x5/0x20 [ 53.778518][ T3631] ? __lock_acquire+0x1f60/0x1f60 [ 53.783518][ T3631] ? deref_stack_reg+0x17a/0x210 [ 53.788433][ T3631] ? mark_lock+0x9a/0x350 [ 53.792742][ T3631] ? __lock_acquire+0x1292/0x1f60 [ 53.797747][ T3631] ? mark_lock+0x9a/0x350 [ 53.802054][ T3631] __lock_acquire+0x1292/0x1f60 [ 53.806887][ T3631] lock_acquire+0x182/0x3c0 [ 53.811381][ T3631] ? do_journal_begin_r+0x340/0x1070 [ 53.816644][ T3631] ? read_lock_is_recursive+0x10/0x10 [ 53.821993][ T3631] ? __might_sleep+0xc0/0xc0 [ 53.826561][ T3631] ? reiserfs_write_unlock_nested+0xd0/0x120 [ 53.832522][ T3631] ? __lock_acquire+0x1f60/0x1f60 [ 53.837527][ T3631] __mutex_lock_common+0x1bd/0x26e0 [ 53.842708][ T3631] ? do_journal_begin_r+0x340/0x1070 [ 53.847969][ T3631] ? __mutex_unlock_slowpath+0x222/0x770 [ 53.853582][ T3631] ? do_journal_begin_r+0x340/0x1070 [ 53.858854][ T3631] ? mutex_unlock+0x10/0x10 [ 53.863340][ T3631] ? mutex_lock_io_nested+0x60/0x60 [ 53.868524][ T3631] mutex_lock_nested+0x17/0x20 [ 53.873267][ T3631] do_journal_begin_r+0x340/0x1070 [ 53.878362][ T3631] ? journal_join_abort+0xe0/0xe0 [ 53.883364][ T3631] ? print_irqtrace_events+0x220/0x220 [ 53.888799][ T3631] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 53.894586][ T3631] ? lockdep_hardirqs_on+0x8d/0x130 [ 53.899767][ T3631] journal_begin+0x14b/0x350 [ 53.904340][ T3631] reiserfs_dirty_inode+0x108/0x230 [ 53.909523][ T3631] ? reiserfs_free_inode+0x20/0x20 [ 53.914612][ T3631] ? rcu_read_lock_sched_held+0x87/0x110 [ 53.920224][ T3631] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 53.926183][ T3631] ? current_time+0x1d7/0x300 [ 53.930841][ T3631] ? reiserfs_free_inode+0x20/0x20 [ 53.935937][ T3631] __mark_inode_dirty+0x1e7/0x600 [ 53.940948][ T3631] ? __might_fault+0xb2/0x110 [ 53.945603][ T3631] reiserfs_ioctl+0x293/0x340 [ 53.950257][ T3631] ? __se_sys_ioctl+0xf0/0x170 [ 53.955002][ T3631] ? reiserfs_unpack+0x390/0x390 [ 53.959928][ T3631] __se_sys_ioctl+0xfb/0x170 [ 53.964512][ T3631] do_syscall_64+0x3d/0xb0 [ 53.968908][ T3631] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.974782][ T3631] RIP: 0033:0x7fe1f11561a9 [ 53.979263][ T3631] 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 [ 53.998845][ T3631] RSP: 002b:00007ffee2eced98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 54.007232][ T3631] RAX: ffffff