./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3826119364 <...> Warning: Permanently added '10.128.0.249' (ECDSA) to the list of known hosts. execve("./syz-executor3826119364", ["./syz-executor3826119364"], 0x7ffd22b170e0 /* 10 vars */) = 0 brk(NULL) = 0x555556b1b000 brk(0x555556b1bc40) = 0x555556b1bc40 arch_prctl(ARCH_SET_FS, 0x555556b1b300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3826119364", 4096) = 28 brk(0x555556b3cc40) = 0x555556b3cc40 brk(0x555556b3d000) = 0x555556b3d000 mprotect(0x7f015ae4c000, 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: [ 49.361505][ T3607] loop0: detected capacity change from 0 to 8192 [ 49.372254][ T3607] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 49.385558][ T3607] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 49.394782][ T3607] REISERFS (device loop0): using ordered data mode [ 49.401315][ T3607] 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 ioctl(3, _IOC(_IOC_WRITE, 0x66, 0x8, 0x28), 0) = -1 EFAULT (Bad address) openat(AT_FDCWD, "/dev/autofs", O_RDONLY|O_DIRECTORY) = -1 ENOTDIR (Not a directory) [ 49.407415][ T3607] 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 [ 49.423968][ T3607] REISERFS (device loop0): checking transaction log (loop0) [ 49.433353][ T3607] REISERFS (device loop0): Using rupasov hash to sort names [ 49.442433][ T3607] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 49.459586][ T3607] [ 49.461934][ T3607] ====================================================== [ 49.468950][ T3607] WARNING: possible circular locking dependency detected [ 49.475970][ T3607] 6.1.0-rc4-syzkaller-00020-gf67dd6ce0723 #0 Not tainted [ 49.482996][ T3607] ------------------------------------------------------ [ 49.490011][ T3607] syz-executor382/3607 is trying to acquire lock: [ 49.496401][ T3607] ffffc90003c310f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070 [ 49.506127][ T3607] [ 49.506127][ T3607] but task is already holding lock: [ 49.513467][ T3607] ffff88802289e460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 49.522659][ T3607] [ 49.522659][ T3607] which lock already depends on the new lock. [ 49.522659][ T3607] [ 49.533036][ T3607] [ 49.533036][ T3607] the existing dependency chain (in reverse order) is: [ 49.542023][ T3607] [ 49.542023][ T3607] -> #2 (sb_writers#9){.+.+}-{0:0}: [ 49.549381][ T3607] lock_acquire+0x182/0x3c0 [ 49.554384][ T3607] sb_start_write+0x4d/0x1a0 [ 49.559478][ T3607] mnt_want_write_file+0x5a/0x1f0 [ 49.565001][ T3607] reiserfs_ioctl+0x16e/0x340 [ 49.570178][ T3607] __se_sys_ioctl+0xfb/0x170 [ 49.575273][ T3607] do_syscall_64+0x3d/0xb0 [ 49.580198][ T3607] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 49.586593][ T3607] [ 49.586593][ T3607] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 49.593773][ T3607] lock_acquire+0x182/0x3c0 [ 49.598777][ T3607] __mutex_lock_common+0x1bd/0x26e0 [ 49.604474][ T3607] mutex_lock_nested+0x17/0x20 [ 49.609733][ T3607] reiserfs_write_lock_nested+0x5b/0xd0 [ 49.615777][ T3607] do_journal_begin_r+0x34b/0x1070 [ 49.621388][ T3607] journal_begin+0x14b/0x350 [ 49.626492][ T3607] reiserfs_fill_super+0x172b/0x24a0 [ 49.632276][ T3607] mount_bdev+0x26c/0x3a0 [ 49.637104][ T3607] legacy_get_tree+0xea/0x180 [ 49.642279][ T3607] vfs_get_tree+0x88/0x270 [ 49.647196][ T3607] do_new_mount+0x289/0xad0 [ 49.652229][ T3607] __se_sys_mount+0x2d3/0x3c0 [ 49.657403][ T3607] do_syscall_64+0x3d/0xb0 [ 49.662316][ T3607] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 49.668708][ T3607] [ 49.668708][ T3607] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 49.676498][ T3607] validate_chain+0x1898/0x6ae0 [ 49.681854][ T3607] __lock_acquire+0x1292/0x1f60 [ 49.687207][ T3607] lock_acquire+0x182/0x3c0 [ 49.692213][ T3607] __mutex_lock_common+0x1bd/0x26e0 [ 49.697907][ T3607] mutex_lock_nested+0x17/0x20 [ 49.703166][ T3607] do_journal_begin_r+0x340/0x1070 [ 49.708779][ T3607] journal_begin+0x14b/0x350 [ 49.713869][ T3607] reiserfs_dirty_inode+0x108/0x230 [ 49.719570][ T3607] __mark_inode_dirty+0x1e7/0x600 [ 49.725097][ T3607] reiserfs_ioctl+0x293/0x340 [ 49.730281][ T3607] __se_sys_ioctl+0xfb/0x170 [ 49.735373][ T3607] do_syscall_64+0x3d/0xb0 [ 49.740289][ T3607] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 49.746680][ T3607] [ 49.746680][ T3607] other info that might help us debug this: [ 49.746680][ T3607] [ 49.756883][ T3607] Chain exists of: [ 49.756883][ T3607] &journal->j_mutex --> &sbi->lock --> sb_writers#9 [ 49.756883][ T3607] [ 49.769367][ T3607] Possible unsafe locking scenario: [ 49.769367][ T3607] [ 49.776796][ T3607] CPU0 CPU1 [ 49.782138][ T3607] ---- ---- [ 49.787485][ T3607] lock(sb_writers#9); [ 49.791623][ T3607] lock(&sbi->lock); [ 49.798100][ T3607] lock(sb_writers#9); [ 49.804754][ T3607] lock(&journal->j_mutex); [ 49.809323][ T3607] [ 49.809323][ T3607] *** DEADLOCK *** [ 49.809323][ T3607] [ 49.817453][ T3607] 1 lock held by syz-executor382/3607: [ 49.822895][ T3607] #0: ffff88802289e460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 49.832538][ T3607] [ 49.832538][ T3607] stack backtrace: [ 49.838407][ T3607] CPU: 1 PID: 3607 Comm: syz-executor382 Not tainted 6.1.0-rc4-syzkaller-00020-gf67dd6ce0723 #0 [ 49.848796][ T3607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 49.858827][ T3607] Call Trace: [ 49.862087][ T3607] [ 49.865002][ T3607] dump_stack_lvl+0x1b1/0x28e [ 49.869661][ T3607] ? nf_tcp_handle_invalid+0x62e/0x62e [ 49.875100][ T3607] ? print_circular_bug+0x13e/0x1c0 [ 49.880300][ T3607] check_noncircular+0x2cc/0x390 [ 49.885221][ T3607] ? add_chain_block+0x850/0x850 [ 49.890154][ T3607] ? lockdep_lock+0x102/0x290 [ 49.894820][ T3607] ? _find_first_zero_bit+0xe8/0x110 [ 49.900085][ T3607] validate_chain+0x1898/0x6ae0 [ 49.904927][ T3607] ? reacquire_held_locks+0x650/0x650 [ 49.910282][ T3607] ? __kernel_text_address+0x9/0x40 [ 49.915460][ T3607] ? unwind_get_return_address+0x48/0x80 [ 49.921071][ T3607] ? arch_stack_walk+0x98/0xe0 [ 49.925814][ T3607] ? stack_trace_save+0x104/0x1e0 [ 49.930826][ T3607] ? stack_trace_snprint+0xf0/0xf0 [ 49.935919][ T3607] ? check_noncircular+0x1aa/0x390 [ 49.941016][ T3607] ? add_chain_block+0x850/0x850 [ 49.945938][ T3607] ? lockdep_unlock+0x144/0x2e0 [ 49.950771][ T3607] ? lockdep_lock+0x290/0x290 [ 49.955427][ T3607] ? add_lock_to_list+0x1c7/0x2d0 [ 49.960436][ T3607] ? validate_chain+0x1478/0x6ae0 [ 49.965447][ T3607] ? reacquire_held_locks+0x650/0x650 [ 49.970808][ T3607] ? lockdep_unlock+0x144/0x2e0 [ 49.975669][ T3607] ? lockdep_lock+0x290/0x290 [ 49.980353][ T3607] ? add_lock_to_list+0x1c7/0x2d0 [ 49.985384][ T3607] ? validate_chain+0x1478/0x6ae0 [ 49.990400][ T3607] ? reacquire_held_locks+0x650/0x650 [ 49.995759][ T3607] ? rcu_read_lock_sched_held+0x87/0x110 [ 50.001405][ T3607] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 50.007376][ T3607] ? __stack_depot_save+0x41c/0x4a0 [ 50.012559][ T3607] ? trace_lock_release+0x95/0x220 [ 50.017658][ T3607] ? stack_trace_save+0x1e0/0x1e0 [ 50.022662][ T3607] ? rcu_read_lock_sched_held+0x87/0x110 [ 50.028273][ T3607] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 50.034249][ T3607] ? stack_trace_save+0x1e0/0x1e0 [ 50.039251][ T3607] ? rcu_read_lock_sched_held+0x87/0x110 [ 50.044873][ T3607] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 50.050847][ T3607] ? rcu_lock_release+0x5/0x20 [ 50.055598][ T3607] ? read_lock_is_recursive+0x10/0x10 [ 50.060961][ T3607] ? rcu_lock_release+0x5/0x20 [ 50.065712][ T3607] ? __lock_acquire+0x1f60/0x1f60 [ 50.070722][ T3607] ? deref_stack_reg+0x17a/0x210 [ 50.075646][ T3607] ? preempt_count_add+0x8d/0x180 [ 50.080658][ T3607] ? stack_trace_save+0x1e0/0x1e0 [ 50.085670][ T3607] ? is_bpf_text_address+0x253/0x270 [ 50.090944][ T3607] ? stack_trace_save+0x1e0/0x1e0 [ 50.095956][ T3607] ? stack_trace_save+0x1e0/0x1e0 [ 50.100966][ T3607] ? rcu_read_lock_sched_held+0x87/0x110 [ 50.106598][ T3607] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 50.112573][ T3607] ? rcu_lock_release+0x5/0x20 [ 50.117326][ T3607] ? read_lock_is_recursive+0x10/0x10 [ 50.122711][ T3607] ? rcu_lock_release+0x5/0x20 [ 50.127464][ T3607] ? __lock_acquire+0x1f60/0x1f60 [ 50.132474][ T3607] ? deref_stack_reg+0x17a/0x210 [ 50.137410][ T3607] ? stack_trace_save+0x1e0/0x1e0 [ 50.142429][ T3607] ? rcu_read_lock_sched_held+0x87/0x110 [ 50.148043][ T3607] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 50.154093][ T3607] ? rcu_lock_release+0x5/0x20 [ 50.158857][ T3607] ? read_lock_is_recursive+0x10/0x10 [ 50.164224][ T3607] ? rcu_lock_release+0x5/0x20 [ 50.168983][ T3607] ? __lock_acquire+0x1f60/0x1f60 [ 50.174008][ T3607] ? deref_stack_reg+0x17a/0x210 [ 50.178927][ T3607] ? mark_lock+0x9a/0x350 [ 50.183245][ T3607] ? __lock_acquire+0x1292/0x1f60 [ 50.188253][ T3607] ? mark_lock+0x9a/0x350 [ 50.192564][ T3607] __lock_acquire+0x1292/0x1f60 [ 50.197414][ T3607] lock_acquire+0x182/0x3c0 [ 50.201915][ T3607] ? do_journal_begin_r+0x340/0x1070 [ 50.207194][ T3607] ? read_lock_is_recursive+0x10/0x10 [ 50.212558][ T3607] ? __might_sleep+0xc0/0xc0 [ 50.217156][ T3607] ? reiserfs_write_unlock_nested+0xd0/0x120 [ 50.223119][ T3607] ? __lock_acquire+0x1f60/0x1f60 [ 50.228127][ T3607] __mutex_lock_common+0x1bd/0x26e0 [ 50.233304][ T3607] ? do_journal_begin_r+0x340/0x1070 [ 50.238568][ T3607] ? __mutex_unlock_slowpath+0x222/0x770 [ 50.244177][ T3607] ? do_journal_begin_r+0x340/0x1070 [ 50.249442][ T3607] ? mutex_unlock+0x10/0x10 [ 50.253923][ T3607] ? mutex_lock_io_nested+0x60/0x60 [ 50.259102][ T3607] mutex_lock_nested+0x17/0x20 [ 50.263843][ T3607] do_journal_begin_r+0x340/0x1070 [ 50.268940][ T3607] ? journal_join_abort+0xe0/0xe0 [ 50.273942][ T3607] ? print_irqtrace_events+0x220/0x220 [ 50.279381][ T3607] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 50.285177][ T3607] ? lockdep_hardirqs_on+0x8d/0x130 [ 50.290356][ T3607] journal_begin+0x14b/0x350 [ 50.294923][ T3607] reiserfs_dirty_inode+0x108/0x230 [ 50.300101][ T3607] ? reiserfs_free_inode+0x20/0x20 [ 50.305192][ T3607] ? rcu_read_lock_sched_held+0x87/0x110 [ 50.310804][ T3607] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 50.316760][ T3607] ? current_time+0x1d7/0x300 [ 50.321416][ T3607] ? reiserfs_free_inode+0x20/0x20 [ 50.326515][ T3607] __mark_inode_dirty+0x1e7/0x600 [ 50.331521][ T3607] ? __might_fault+0xb2/0x110 [ 50.336178][ T3607] reiserfs_ioctl+0x293/0x340 [ 50.340840][ T3607] ? __se_sys_ioctl+0xf0/0x170 [ 50.345583][ T3607] ? reiserfs_unpack+0x390/0x390 [ 50.350499][ T3607] __se_sys_ioctl+0xfb/0x170 [ 50.355072][ T3607] do_syscall_64+0x3d/0xb0 [ 50.359471][ T3607] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 50.365346][ T3607] RIP: 0033:0x7f015ade01c9 [ 50.369739][ T3607] 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 [ 50.389325][ T3607] RSP: 002b:00007ffc4902b378 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.397736][ T3607] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f015ade01c9 [ 50.405694][ T3607] RDX: 0000000020000080 RSI: 0000000040087602 RDI: 0000000000000005 ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 50.413642][ T3607] RBP: 0000