Warning: Permanently added '10.128.0.233' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 205.025581][ T37] audit: type=1804 audit(1620488162.297:2): pid=10879 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor167" name="/root/syzkaller.EmJdbJ/202/bus/file0" dev="sda1" ino=14236 res=1 errno=0 [ 205.067978][T10873] [ 205.068798][ T37] audit: type=1804 audit(1620488162.347:3): pid=10873 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor167" name="/root/syzkaller.EmJdbJ/202/bus/file0" dev="sda1" ino=14236 res=1 errno=0 [ 205.070580][T10873] ====================================================== [ 205.070586][T10873] WARNING: possible circular locking dependency detected [ 205.107781][T10873] 5.12.0-syzkaller #0 Not tainted [ 205.112781][T10873] ------------------------------------------------------ [ 205.119772][T10873] syz-executor167/10873 is trying to acquire lock: [ 205.126246][T10873] ffff8880162d0bc0 (&iint->mutex){+.+.}-{3:3}, at: process_measurement+0x3a8/0x17e0 [ 205.135643][T10873] [ 205.135643][T10873] but task is already holding lock: [ 205.142979][T10873] ffff888147e2e460 (sb_writers#5){.+.+}-{0:0}, at: path_openat+0x1ad9/0x27e0 [ 205.151835][T10873] [ 205.151835][T10873] which lock already depends on the new lock. [ 205.151835][T10873] [ 205.162473][T10873] [ 205.162473][T10873] the existing dependency chain (in reverse order) is: [ 205.171732][T10873] [ 205.171732][T10873] -> #1 (sb_writers#5){.+.+}-{0:0}: [ 205.179268][T10873] mnt_want_write+0x6e/0x3e0 [ 205.184359][T10873] ovl_maybe_copy_up+0x11f/0x190 [ 205.189798][T10873] ovl_open+0xba/0x270 [ 205.194372][T10873] do_dentry_open+0x4b9/0x11b0 [ 205.199639][T10873] dentry_open+0x132/0x1d0 [ 205.204556][T10873] ima_calc_file_hash+0x2d2/0x4b0 [ 205.210078][T10873] ima_collect_measurement+0x4ca/0x570 [ 205.216036][T10873] process_measurement+0xd1c/0x17e0 [ 205.221740][T10873] ima_file_check+0xb9/0x100 [ 205.226831][T10873] path_openat+0x15b5/0x27e0 [ 205.231919][T10873] do_filp_open+0x190/0x3d0 [ 205.236922][T10873] do_sys_openat2+0x16d/0x420 [ 205.242102][T10873] __x64_sys_open+0x119/0x1c0 [ 205.247282][T10873] do_syscall_64+0x3a/0xb0 [ 205.252293][T10873] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 205.258692][T10873] [ 205.258692][T10873] -> #0 (&iint->mutex){+.+.}-{3:3}: [ 205.266135][T10873] __lock_acquire+0x2a17/0x5230 [ 205.271495][T10873] lock_acquire+0x1ab/0x740 [ 205.276501][T10873] __mutex_lock+0x139/0x1120 [ 205.281590][T10873] process_measurement+0x3a8/0x17e0 [ 205.287291][T10873] ima_file_check+0xb9/0x100 [ 205.292384][T10873] path_openat+0x15b5/0x27e0 [ 205.297475][T10873] do_filp_open+0x190/0x3d0 [ 205.302477][T10873] do_sys_openat2+0x16d/0x420 [ 205.307656][T10873] __x64_sys_open+0x119/0x1c0 [ 205.312834][T10873] do_syscall_64+0x3a/0xb0 [ 205.317752][T10873] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 205.324148][T10873] [ 205.324148][T10873] other info that might help us debug this: [ 205.324148][T10873] [ 205.334353][T10873] Possible unsafe locking scenario: [ 205.334353][T10873] [ 205.341775][T10873] CPU0 CPU1 [ 205.347116][T10873] ---- ---- [ 205.352455][T10873] lock(sb_writers#5); [ 205.356592][T10873] lock(&iint->mutex); [ 205.363242][T10873] lock(sb_writers#5); [ 205.370014][T10873] lock(&iint->mutex); [ 205.374148][T10873] [ 205.374148][T10873] *** DEADLOCK *** [ 205.374148][T10873] [ 205.382270][T10873] 1 lock held by syz-executor167/10873: [ 205.387791][T10873] #0: ffff888147e2e460 (sb_writers#5){.+.+}-{0:0}, at: path_openat+0x1ad9/0x27e0 [ 205.396995][T10873] [ 205.396995][T10873] stack backtrace: [ 205.402856][T10873] CPU: 1 PID: 10873 Comm: syz-executor167 Not tainted 5.12.0-syzkaller #0 [ 205.411421][T10873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 205.421458][T10873] Call Trace: [ 205.424717][T10873] dump_stack+0x141/0x1d7 [ 205.429029][T10873] check_noncircular+0x25f/0x2e0 [ 205.433952][T10873] ? print_circular_bug+0x1e0/0x1e0 [ 205.439134][T10873] ? mark_held_locks+0x9f/0xe0 [ 205.443883][T10873] ? lockdep_lock+0xc6/0x200 [ 205.448454][T10873] ? call_rcu_zapped+0xb0/0xb0 [ 205.453203][T10873] __lock_acquire+0x2a17/0x5230 [ 205.458041][T10873] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 205.464004][T10873] ? kmem_cache_free+0x62f/0x730 [ 205.468925][T10873] lock_acquire+0x1ab/0x740 [ 205.473411][T10873] ? process_measurement+0x3a8/0x17e0 [ 205.479038][T10873] ? lock_release+0x720/0x720 [ 205.483728][T10873] __mutex_lock+0x139/0x1120 [ 205.488302][T10873] ? process_measurement+0x3a8/0x17e0 [ 205.493657][T10873] ? process_measurement+0x11bc/0x17e0 [ 205.499101][T10873] ? lock_downgrade+0x6e0/0x6e0 [ 205.503935][T10873] ? process_measurement+0x3a8/0x17e0 [ 205.509291][T10873] ? mutex_lock_io_nested+0xf70/0xf70 [ 205.514646][T10873] ? up_write+0x191/0x560 [ 205.518956][T10873] ? downgrade_write+0x3a0/0x3a0 [ 205.524050][T10873] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 205.530278][T10873] process_measurement+0x3a8/0x17e0 [ 205.535465][T10873] ? mmap_violation_check+0x1e0/0x1e0 [ 205.540829][T10873] ? rwlock_bug.part.0+0x90/0x90 [ 205.545847][T10873] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 205.551817][T10873] ? find_held_lock+0x2d/0x110 [ 205.556562][T10873] ? aa_get_task_label+0x25d/0x540 [ 205.561659][T10873] ? lock_downgrade+0x6e0/0x6e0 [ 205.566668][T10873] ? apparmor_file_open+0x1a5/0xab0 [ 205.571852][T10873] ? aa_get_task_label+0x27f/0x540 [ 205.576947][T10873] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 205.583172][T10873] ? apparmor_task_getsecid+0xc2/0x110 [ 205.588617][T10873] ima_file_check+0xb9/0x100 [ 205.593192][T10873] ? process_measurement+0x17e0/0x17e0 [ 205.598811][T10873] ? may_open+0x1f6/0x420 [ 205.603122][T10873] path_openat+0x15b5/0x27e0 [ 205.607698][T10873] ? path_lookupat+0x850/0x850 [ 205.612444][T10873] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 205.618411][T10873] do_filp_open+0x190/0x3d0 [ 205.622896][T10873] ? may_open_dev+0xf0/0xf0 [ 205.627383][T10873] ? do_raw_spin_lock+0x120/0x2b0 [ 205.632392][T10873] ? rwlock_bug.part.0+0x90/0x90 [ 205.637315][T10873] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 205.643543][T10873] ? _raw_spin_unlock+0x24/0x40 [ 205.648376][T10873] ? alloc_fd+0x2bc/0x640 [ 205.652694][T10873] do_sys_openat2+0x16d/0x420 [ 205.657354][T10873] ? build_open_flags+0x6f0/0x6f0 [ 205.662362][T10873] ? __context_tracking_exit+0xb8/0xe0 [ 205.668065][T10873] ? lock_downgrade+0x6e0/0x6e0 [ 205.672904][T10873] __x64_sys_open+0x119/0x1c0 [ 205.677563][T10873] ? do_sys_open+0x140/0x140 [ 205.682136][T10873] ? syscall_enter_from_user_mode+0x27/0x70 [ 205.688017][T10873] do_syscall_64+0x3a/0xb0 [ 205.692418][T10873] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 205.698382][T10873] RIP: 0033:0x446119 executing program executing program executing program executing program [ 205.702256][T10873] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 205.721842][T10873] RSP: 002b:00007ff688b472f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 205.730236][T10873] RAX: ffffffffffffffda RBX: 00000000004cb4c0 RCX: 0000000000446119 [ 205.738191][T10873] RDX: 0000000000000000 RSI: 0000000000000300 RDI: 0000000020000040 [ 205.746139][T10873] RBP: 000000000049b06c R08: 0000000000000000 R09: 0000000000000000 [ 205.754090][T10873] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 205.762038][T10873] R13: 3d72696472657070 R14: 0079616c7265766f R15: 00000000004cb4c8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program