./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2287401787
<...>
DUID 00:04:dd:0f:a4:e5:cb:b8:04:95:2f:30:92:03:b3:b6:0d:bc
forked to background, child pid 3213
[ 29.710243][ T3214] 8021q: adding VLAN 0 to HW filter on device bond0
[ 29.724043][ T3214] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.1.4' (ECDSA) to the list of known hosts.
execve("./syz-executor2287401787", ["./syz-executor2287401787"], 0x7ffdad134400 /* 10 vars */) = 0
brk(NULL) = 0x555555994000
brk(0x555555994c40) = 0x555555994c40
arch_prctl(ARCH_SET_FS, 0x555555994300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor2287401787", 4096) = 28
brk(0x5555559b5c40) = 0x5555559b5c40
brk(0x5555559b6000) = 0x5555559b6000
mprotect(0x7fb2dd1cb000, 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\x06\x00\x2e\x2e\x00\x00\x00\x00\x00\x00\x2e\x00\xe2\xff\x00\x00\x00\x00\xed\x41\x00\x00\x67\x07\x00\x00\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: [ 48.910750][ T3634] loop0: detected capacity change from 0 to 8192
[ 48.921965][ T3634] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025
[ 48.935198][ T3634] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[ 48.944472][ T3634] REISERFS (device loop0): using ordered data mode
[ 48.951564][ T3634] 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
[ 48.957749][ T3634] 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
[ 48.974423][ T3634] REISERFS (device loop0): checking transaction log (loop0)
[ 48.984051][ T3634] REISERFS (device loop0): Using rupasov hash to sort names
[ 48.992088][ T3634] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
[ 49.006938][ T3634]
open(NULL, O_RDONLY) = -1 EFAULT (Bad address)
[ 49.009288][ T3634] ======================================================
[ 49.016306][ T3634] WARNING: possible circular locking dependency detected
[ 49.023331][ T3634] 6.1.0-rc5-syzkaller-00307-gfe24a97cf254 #0 Not tainted
[ 49.030351][ T3634] ------------------------------------------------------
[ 49.037349][ T3634] syz-executor228/3634 is trying to acquire lock:
[ 49.043746][ T3634] ffffc90003d610f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070
[ 49.053478][ T3634]
[ 49.053478][ T3634] but task is already holding lock:
[ 49.060822][ T3634] ffff888079e4c460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0
[ 49.070023][ T3634]
[ 49.070023][ T3634] which lock already depends on the new lock.
[ 49.070023][ T3634]
[ 49.080401][ T3634]
[ 49.080401][ T3634] the existing dependency chain (in reverse order) is:
[ 49.089396][ T3634]
[ 49.089396][ T3634] -> #2 (sb_writers#9){.+.+}-{0:0}:
[ 49.096781][ T3634] lock_acquire+0x182/0x3c0
[ 49.101799][ T3634] sb_start_write+0x4d/0x1a0
[ 49.106902][ T3634] mnt_want_write_file+0x5a/0x1f0
[ 49.112446][ T3634] reiserfs_ioctl+0x16e/0x340
[ 49.117636][ T3634] __se_sys_ioctl+0xfb/0x170
[ 49.122737][ T3634] do_syscall_64+0x3d/0xb0
[ 49.127675][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 49.134080][ T3634]
[ 49.134080][ T3634] -> #1 (&sbi->lock){+.+.}-{3:3}:
[ 49.141276][ T3634] lock_acquire+0x182/0x3c0
[ 49.146304][ T3634] __mutex_lock_common+0x1bd/0x26e0
[ 49.152038][ T3634] mutex_lock_nested+0x17/0x20
[ 49.157331][ T3634] reiserfs_write_lock_nested+0x5b/0xd0
[ 49.163397][ T3634] do_journal_begin_r+0x34b/0x1070
[ 49.169019][ T3634] journal_begin+0x14b/0x350
[ 49.174116][ T3634] reiserfs_fill_super+0x172b/0x24a0
[ 49.179915][ T3634] mount_bdev+0x26c/0x3a0
[ 49.184757][ T3634] legacy_get_tree+0xea/0x180
[ 49.189950][ T3634] vfs_get_tree+0x88/0x270
[ 49.194876][ T3634] do_new_mount+0x289/0xad0
[ 49.199887][ T3634] __se_sys_mount+0x2d3/0x3c0
[ 49.205075][ T3634] do_syscall_64+0x3d/0xb0
[ 49.210010][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 49.216415][ T3634]
[ 49.216415][ T3634] -> #0 (&journal->j_mutex){+.+.}-{3:3}:
[ 49.224223][ T3634] validate_chain+0x1898/0x6ae0
[ 49.229585][ T3634] __lock_acquire+0x1292/0x1f60
[ 49.234944][ T3634] lock_acquire+0x182/0x3c0
[ 49.239961][ T3634] __mutex_lock_common+0x1bd/0x26e0
[ 49.245674][ T3634] mutex_lock_nested+0x17/0x20
[ 49.250949][ T3634] do_journal_begin_r+0x340/0x1070
[ 49.256568][ T3634] journal_begin+0x14b/0x350
[ 49.261667][ T3634] reiserfs_dirty_inode+0x108/0x230
[ 49.267386][ T3634] __mark_inode_dirty+0x1e7/0x600
[ 49.272957][ T3634] reiserfs_ioctl+0x293/0x340
[ 49.278145][ T3634] __se_sys_ioctl+0xfb/0x170
[ 49.283253][ T3634] do_syscall_64+0x3d/0xb0
[ 49.288177][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 49.294584][ T3634]
[ 49.294584][ T3634] other info that might help us debug this:
[ 49.294584][ T3634]
[ 49.304881][ T3634] Chain exists of:
[ 49.304881][ T3634] &journal->j_mutex --> &sbi->lock --> sb_writers#9
[ 49.304881][ T3634]
[ 49.317388][ T3634] Possible unsafe locking scenario:
[ 49.317388][ T3634]
[ 49.324821][ T3634] CPU0 CPU1
[ 49.330173][ T3634] ---- ----
[ 49.335522][ T3634] lock(sb_writers#9);
[ 49.339671][ T3634] lock(&sbi->lock);
[ 49.346159][ T3634] lock(sb_writers#9);
[ 49.352823][ T3634] lock(&journal->j_mutex);
[ 49.357399][ T3634]
[ 49.357399][ T3634] *** DEADLOCK ***
[ 49.357399][ T3634]
[ 49.365524][ T3634] 1 lock held by syz-executor228/3634:
[ 49.370966][ T3634] #0: ffff888079e4c460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0
[ 49.380892][ T3634]
[ 49.380892][ T3634] stack backtrace:
[ 49.386762][ T3634] CPU: 0 PID: 3634 Comm: syz-executor228 Not tainted 6.1.0-rc5-syzkaller-00307-gfe24a97cf254 #0
[ 49.397154][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 49.407192][ T3634] Call Trace:
[ 49.410462][ T3634] <TASK>
[ 49.413381][ T3634] dump_stack_lvl+0x1b1/0x28e
[ 49.418050][ T3634] ? nf_tcp_handle_invalid+0x62e/0x62e
[ 49.423504][ T3634] ? print_circular_bug+0x13e/0x1c0
[ 49.428693][ T3634] check_noncircular+0x2cc/0x390
[ 49.433632][ T3634] ? add_chain_block+0x850/0x850
[ 49.438559][ T3634] ? lockdep_lock+0x102/0x290
[ 49.443226][ T3634] ? _find_first_zero_bit+0xe8/0x110
[ 49.448514][ T3634] validate_chain+0x1898/0x6ae0
[ 49.453366][ T3634] ? reacquire_held_locks+0x650/0x650
[ 49.458727][ T3634] ? __kernel_text_address+0x9/0x40
[ 49.463918][ T3634] ? unwind_get_return_address+0x48/0x80
[ 49.469537][ T3634] ? arch_stack_walk+0x98/0xe0
[ 49.474290][ T3634] ? stack_trace_save+0x104/0x1e0
[ 49.479313][ T3634] ? stack_trace_snprint+0xf0/0xf0
[ 49.484413][ T3634] ? check_noncircular+0x1aa/0x390
[ 49.489514][ T3634] ? add_chain_block+0x850/0x850
[ 49.494443][ T3634] ? lockdep_unlock+0x144/0x2e0
[ 49.499283][ T3634] ? lockdep_lock+0x290/0x290
[ 49.504032][ T3634] ? add_lock_to_list+0x1c7/0x2d0
[ 49.509048][ T3634] ? validate_chain+0x1478/0x6ae0
[ 49.514067][ T3634] ? reacquire_held_locks+0x650/0x650
[ 49.519427][ T3634] ? lockdep_unlock+0x144/0x2e0
[ 49.524269][ T3634] ? lockdep_lock+0x290/0x290
[ 49.528939][ T3634] ? add_lock_to_list+0x1c7/0x2d0
[ 49.533953][ T3634] ? validate_chain+0x1478/0x6ae0
[ 49.538977][ T3634] ? reacquire_held_locks+0x650/0x650
[ 49.544338][ T3634] ? reacquire_held_locks+0x650/0x650
[ 49.549701][ T3634] ? is_bpf_text_address+0x253/0x270
[ 49.554977][ T3634] ? stack_trace_save+0x1e0/0x1e0
[ 49.559997][ T3634] ? rcu_read_lock_sched_held+0x87/0x110
[ 49.565706][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 49.571676][ T3634] ? cpufreq_update_util+0x8a/0x240
[ 49.576866][ T3634] ? detach_entity_load_avg+0x3e5/0x490
[ 49.582401][ T3634] ? trace_pelt_cfs_tp+0x93/0x210
[ 49.587418][ T3634] ? stack_trace_save+0x1e0/0x1e0
[ 49.592431][ T3634] ? rcu_read_lock_sched_held+0x87/0x110
[ 49.598049][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 49.604020][ T3634] ? rcu_lock_release+0x5/0x20
[ 49.608779][ T3634] ? read_lock_is_recursive+0x10/0x10
[ 49.614139][ T3634] ? rcu_lock_release+0x5/0x20
[ 49.618891][ T3634] ? __lock_acquire+0x1f60/0x1f60
[ 49.623906][ T3634] ? deref_stack_reg+0x17a/0x210
[ 49.628835][ T3634] ? preempt_count_add+0x8d/0x180
[ 49.633855][ T3634] ? stack_trace_save+0x1e0/0x1e0
[ 49.638870][ T3634] ? is_bpf_text_address+0x253/0x270
[ 49.644145][ T3634] ? stack_trace_save+0x1e0/0x1e0
[ 49.649163][ T3634] ? stack_trace_save+0x1e0/0x1e0
[ 49.654177][ T3634] ? rcu_read_lock_sched_held+0x87/0x110
[ 49.659800][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 49.665773][ T3634] ? rcu_lock_release+0x5/0x20
[ 49.670531][ T3634] ? read_lock_is_recursive+0x10/0x10
[ 49.675896][ T3634] ? rcu_lock_release+0x5/0x20
[ 49.680649][ T3634] ? __lock_acquire+0x1f60/0x1f60
[ 49.685667][ T3634] ? deref_stack_reg+0x17a/0x210
[ 49.690603][ T3634] ? stack_trace_save+0x1e0/0x1e0
[ 49.695619][ T3634] ? rcu_read_lock_sched_held+0x87/0x110
[ 49.701242][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 49.707214][ T3634] ? rcu_lock_release+0x5/0x20
[ 49.711972][ T3634] ? read_lock_is_recursive+0x10/0x10
[ 49.717337][ T3634] ? rcu_lock_release+0x5/0x20
[ 49.722091][ T3634] ? __lock_acquire+0x1f60/0x1f60
[ 49.727106][ T3634] ? deref_stack_reg+0x17a/0x210
[ 49.732037][ T3634] ? mark_lock+0x9a/0x350
[ 49.736361][ T3634] ? __lock_acquire+0x1292/0x1f60
[ 49.741379][ T3634] ? mark_lock+0x9a/0x350
[ 49.745705][ T3634] __lock_acquire+0x1292/0x1f60
[ 49.750556][ T3634] lock_acquire+0x182/0x3c0
[ 49.755049][ T3634] ? do_journal_begin_r+0x340/0x1070
[ 49.760326][ T3634] ? read_lock_is_recursive+0x10/0x10
[ 49.765695][ T3634] ? __might_sleep+0xc0/0xc0
[ 49.770276][ T3634] ? reiserfs_write_unlock_nested+0xd0/0x120
[ 49.776335][ T3634] ? __lock_acquire+0x1f60/0x1f60
[ 49.781350][ T3634] __mutex_lock_common+0x1bd/0x26e0
[ 49.786543][ T3634] ? do_journal_begin_r+0x340/0x1070
[ 49.791820][ T3634] ? __mutex_unlock_slowpath+0x222/0x770
[ 49.797447][ T3634] ? do_journal_begin_r+0x340/0x1070
[ 49.802723][ T3634] ? mutex_unlock+0x10/0x10
[ 49.807215][ T3634] ? mutex_lock_io_nested+0x60/0x60
[ 49.812410][ T3634] mutex_lock_nested+0x17/0x20
[ 49.817163][ T3634] do_journal_begin_r+0x340/0x1070
[ 49.822269][ T3634] ? journal_join_abort+0xe0/0xe0
[ 49.827281][ T3634] ? print_irqtrace_events+0x220/0x220
[ 49.832727][ T3634] ? ktime_get_coarse_real_ts64+0x45/0x140
[ 49.838522][ T3634] ? lockdep_hardirqs_on+0x8d/0x130
[ 49.843711][ T3634] journal_begin+0x14b/0x350
[ 49.848287][ T3634] reiserfs_dirty_inode+0x108/0x230
[ 49.853477][ T3634] ? reiserfs_free_inode+0x20/0x20
[ 49.858577][ T3634] ? rcu_read_lock_sched_held+0x87/0x110
[ 49.864196][ T3634] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 49.870167][ T3634] ? current_time+0x1d7/0x300
[ 49.874836][ T3634] ? reiserfs_free_inode+0x20/0x20
[ 49.879938][ T3634] __mark_inode_dirty+0x1e7/0x600
[ 49.884958][ T3634] ? __might_fault+0xb2/0x110
[ 49.889627][ T3634] reiserfs_ioctl+0x293/0x340
[ 49.894298][ T3634] ? __se_sys_ioctl+0xf0/0x170
[ 49.899051][ T3634] ? reiserfs_unpack+0x390/0x390
[ 49.903975][ T3634] __se_sys_ioctl+0xfb/0x170
[ 49.908556][ T3634] do_syscall_64+0x3d/0xb0
[ 49.912964][ T3634] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 49.918845][ T3634] RIP: 0033:0x7fb2dd15f149
[ 49.923252][ T3634] 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
[ 49.942853][ T3634] RSP: 002b:00007ffe01654118 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 49.951255][ T3634] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb2dd15f149
ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0
exit_group(0) = ?
+++ exited with 0 +++
[ 49.959298][ T3634] RDX: 0000000020000080 RSI: 0000000040087602 RDI: 00