[ 34.229481][ T26] audit: type=1800 audit(1556495313.871:27): pid=7387 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 34.251718][ T26] audit: type=1800 audit(1556495313.871:28): pid=7387 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 34.938350][ T26] audit: type=1800 audit(1556495314.641:29): pid=7387 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 34.963629][ T26] audit: type=1800 audit(1556495314.641:30): pid=7387 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.136' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 607.202389][ T2488] print_req_error: I/O error, dev loop1, sector 64 flags 0 [ 607.226470][ T2488] print_req_error: I/O error, dev loop1, sector 256 flags 0 [ 607.234424][ T7547] UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 [ 607.248514][ T2489] print_req_error: I/O error, dev loop1, sector 512 flags 0 [ 607.256688][ T7547] UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 [ 607.270437][ T7547] UDF-fs: warning (device loop1): udf_load_vrs: No anchor found [ 607.281274][ T7547] UDF-fs: Scanning with blocksize 512 failed [ 607.288875][ T2488] print_req_error: I/O error, dev loop1, sector 64 flags 0 [ 607.297463][ T2488] print_req_error: I/O error, dev loop1, sector 512 flags 0 [ 607.305502][ T7547] UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 [ 607.317283][ T2488] print_req_error: I/O error, dev loop1, sector 1024 flags 0 [ 607.325131][ T7547] UDF-fs: error (device loop1): udf_read_tagged: read failed, block=512, location=512 [ 767.964958][ T1042] INFO: task syz-executor013:7561 blocked for more than 143 seconds. [ 767.973200][ T1042] Not tainted 5.1.0-rc6+ #90 [ 767.978361][ T1042] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 767.987323][ T1042] syz-executor013 D29336 7561 7543 0x00000004 [ 767.993661][ T1042] Call Trace: [ 767.997133][ T1042] __schedule+0x813/0x1cc0 [ 768.004843][ T1042] ? __mutex_lock+0x721/0x1310 [ 768.009620][ T1042] ? __sched_text_start+0x8/0x8 [ 768.014473][ T1042] schedule+0x92/0x180 [ 768.020552][ T1042] schedule_preempt_disabled+0x13/0x20 [ 768.027010][ T1042] __mutex_lock+0x726/0x1310 [ 768.031684][ T1042] ? mount_bdev+0x93/0x3c0 [ 768.036156][ T1042] ? mutex_trylock+0x1e0/0x1e0 [ 768.041161][ T1042] ? bd_may_claim+0xd0/0xd0 [ 768.045716][ T1042] ? vfs_parse_fs_string+0x111/0x170 [ 768.051197][ T1042] mutex_lock_nested+0x16/0x20 [ 768.056026][ T1042] ? mutex_lock_nested+0x16/0x20 [ 768.061122][ T1042] mount_bdev+0x93/0x3c0 [ 768.065451][ T1042] ? udf_load_vrs+0xc80/0xc80 [ 768.070404][ T1042] ? vfs_parse_fs_string+0x116/0x170 [ 768.075747][ T1042] udf_mount+0x35/0x40 [ 768.079971][ T1042] ? udf_get_pblock_meta25+0x3a0/0x3a0 [ 768.085482][ T1042] legacy_get_tree+0xf2/0x200 [ 768.090380][ T1042] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 768.096701][ T1042] vfs_get_tree+0x123/0x450 [ 768.101589][ T1042] do_mount+0x1436/0x2c40 [ 768.105969][ T1042] ? copy_mount_string+0x40/0x40 [ 768.111094][ T1042] ? _copy_from_user+0xdd/0x150 [ 768.116014][ T1042] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 768.122413][ T1042] ? copy_mount_options+0x280/0x3a0 [ 768.127663][ T1042] ksys_mount+0xdb/0x150 [ 768.132136][ T1042] __x64_sys_mount+0xbe/0x150 [ 768.136893][ T1042] do_syscall_64+0x103/0x610 [ 768.141633][ T1042] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 768.147568][ T1042] RIP: 0033:0x44a739 [ 768.151707][ T1042] Code: 00 49 6e 76 61 6c 69 64 20 22 24 41 63 74 69 6f 6e 51 75 65 75 65 43 68 65 63 6b 70 6f 69 6e 74 49 6e 74 65 72 76 61 6c 22 2c <20> 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 [ 768.172294][ T1042] RSP: 002b:00007f9541ef0db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 768.180755][ T1042] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044a739 [ 768.188912][ T1042] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000020000080 [ 768.196921][ T1042] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 768.205082][ T1042] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 768.213067][ T1042] R13: 00007ffc6cf3cddf R14: 00007f9541ef19c0 R15: 0000000000000000 [ 768.221103][ T1042] INFO: task syz-executor013:7563 blocked for more than 143 seconds. [ 768.229355][ T1042] Not tainted 5.1.0-rc6+ #90 [ 768.234452][ T1042] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 768.243162][ T1042] syz-executor013 D29720 7563 7541 0x00000004 [ 768.249679][ T1042] Call Trace: [ 768.252972][ T1042] __schedule+0x813/0x1cc0 [ 768.257430][ T1042] ? __mutex_lock+0x721/0x1310 [ 768.262342][ T1042] ? __sched_text_start+0x8/0x8 [ 768.267246][ T1042] schedule+0x92/0x180 [ 768.271455][ T1042] schedule_preempt_disabled+0x13/0x20 [ 768.276960][ T1042] __mutex_lock+0x726/0x1310 [ 768.281715][ T1042] ? mount_bdev+0x93/0x3c0 [ 768.286190][ T1042] ? mutex_trylock+0x1e0/0x1e0 [ 768.291096][ T1042] ? bd_may_claim+0xd0/0xd0 [ 768.296530][ T1042] ? vfs_parse_fs_string+0x111/0x170 [ 768.301820][ T1042] mutex_lock_nested+0x16/0x20 [ 768.306634][ T1042] ? mutex_lock_nested+0x16/0x20 [ 768.311709][ T1042] mount_bdev+0x93/0x3c0 [ 768.315986][ T1042] ? udf_load_vrs+0xc80/0xc80 [ 768.320799][ T1042] ? vfs_parse_fs_string+0x116/0x170 [ 768.326135][ T1042] udf_mount+0x35/0x40 [ 768.330341][ T1042] ? udf_get_pblock_meta25+0x3a0/0x3a0 [ 768.335859][ T1042] legacy_get_tree+0xf2/0x200 [ 768.340762][ T1042] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 768.347058][ T1042] vfs_get_tree+0x123/0x450 [ 768.351780][ T1042] do_mount+0x1436/0x2c40 [ 768.356190][ T1042] ? copy_mount_string+0x40/0x40 [ 768.361253][ T1042] ? _copy_from_user+0xdd/0x150 [ 768.366158][ T1042] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 768.372600][ T1042] ? copy_mount_options+0x280/0x3a0 [ 768.377854][ T1042] ksys_mount+0xdb/0x150 [ 768.382226][ T1042] __x64_sys_mount+0xbe/0x150 [ 768.386954][ T1042] do_syscall_64+0x103/0x610 [ 768.391686][ T1042] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 768.397620][ T1042] RIP: 0033:0x44a739 [ 768.401661][ T1042] Code: 00 49 6e 76 61 6c 69 64 20 22 24 41 63 74 69 6f 6e 51 75 65 75 65 43 68 65 63 6b 70 6f 69 6e 74 49 6e 74 65 72 76 61 6c 22 2c <20> 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 [ 768.425721][ T1042] RSP: 002b:00007f9541ef0db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 768.434131][ T1042] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044a739 [ 768.442159][ T1042] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000020000080 [ 768.450311][ T1042] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 768.458340][ T1042] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 768.466471][ T1042] R13: 00007ffc6cf3cddf R14: 00007f9541ef19c0 R15: 0000000000000000 [ 768.474468][ T1042] INFO: task syz-executor013:7559 blocked for more than 143 seconds. [ 768.482591][ T1042] Not tainted 5.1.0-rc6+ #90 [ 768.487887][ T1042] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 768.496604][ T1042] syz-executor013 D29096 7559 7544 0x00000004 [ 768.503084][ T1042] Call Trace: [ 768.506426][ T1042] __schedule+0x813/0x1cc0 [ 768.510994][ T1042] ? __sched_text_start+0x8/0x8 [ 768.515897][ T1042] ? rwsem_down_write_failed+0x764/0xc30 [ 768.521679][ T1042] ? _raw_spin_unlock_irq+0x28/0x90 [ 768.527025][ T1042] ? lockdep_hardirqs_on+0x418/0x5d0 [ 768.532461][ T1042] schedule+0x92/0x180 [ 768.536599][ T1042] rwsem_down_write_failed+0x774/0xc30 [ 768.542207][ T1042] ? rwsem_down_read_failed+0x420/0x420 [ 768.547804][ T1042] ? mark_held_locks+0xf0/0xf0 [ 768.552726][ T1042] call_rwsem_down_write_failed+0x17/0x30 [ 768.559376][ T1042] ? call_rwsem_down_write_failed+0x17/0x30 [ 768.565335][ T1042] down_write+0x53/0x90 [ 768.569636][ T1042] ? grab_super+0xb4/0x290 [ 768.574050][ T1042] grab_super+0xb4/0x290 [ 768.578345][ T1042] ? lock_acquire+0x16f/0x3f0 [ 768.583168][ T1042] ? drop_super_exclusive+0x30/0x30 [ 768.588413][ T1042] ? test_single_super+0x10/0x10 [ 768.593515][ T1042] ? test_single_super+0x10/0x10 [ 768.598508][ T1042] sget_userns+0x1ab/0x560 [ 768.603072][ T1042] ? kill_litter_super+0x60/0x60 [ 768.608062][ T1042] ? test_single_super+0x10/0x10 [ 768.613259][ T1042] ? kill_litter_super+0x60/0x60 [ 768.618257][ T1042] sget+0x10c/0x150 [ 768.622213][ T1042] mount_bdev+0xff/0x3c0 [ 768.626520][ T1042] ? udf_load_vrs+0xc80/0xc80 [ 768.631400][ T1042] udf_mount+0x35/0x40 [ 768.636031][ T1042] ? udf_get_pblock_meta25+0x3a0/0x3a0 [ 768.641676][ T1042] legacy_get_tree+0xf2/0x200 [ 768.646398][ T1042] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 768.652778][ T1042] vfs_get_tree+0x123/0x450 [ 768.657331][ T1042] do_mount+0x1436/0x2c40 [ 768.661809][ T1042] ? copy_mount_string+0x40/0x40 [ 768.666790][ T1042] ? _copy_from_user+0xdd/0x150 [ 768.671777][ T1042] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 768.678082][ T1042] ? copy_mount_options+0x280/0x3a0 [ 768.683418][ T1042] ksys_mount+0xdb/0x150 [ 768.688581][ T1042] __x64_sys_mount+0xbe/0x150 [ 768.693263][ T1042] do_syscall_64+0x103/0x610 [ 768.697905][ T1042] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 768.703939][ T1042] RIP: 0033:0x44a739 [ 768.707867][ T1042] Code: 00 49 6e 76 61 6c 69 64 20 22 24 41 63 74 69 6f 6e 51 75 65 75 65 43 68 65 63 6b 70 6f 69 6e 74 49 6e 74 65 72 76 61 6c 22 2c <20> 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 [ 768.727665][ T1042] RSP: 002b:00007f9541ef0db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 768.736116][ T1042] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044a739 [ 768.744225][ T1042] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000020000080 [ 768.752255][ T1042] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 768.760408][ T1042] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 768.768434][ T1042] R13: 00007ffc6cf3cddf R14: 00007f9541ef19c0 R15: 0000000000000000 [ 768.776604][ T1042] INFO: task syz-executor013:7565 blocked for more than 144 seconds. [ 768.784665][ T1042] Not tainted 5.1.0-rc6+ #90 [ 768.789817][ T1042] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 768.798628][ T1042] syz-executor013 D29720 7565 7542 0x00000004 [ 768.805023][ T1042] Call Trace: [ 768.808446][ T1042] __schedule+0x813/0x1cc0 [ 768.812865][ T1042] ? __mutex_lock+0x721/0x1310 [ 768.818592][ T1042] ? __sched_text_start+0x8/0x8 [ 768.824670][ T1042] schedule+0x92/0x180 [ 768.828797][ T1042] schedule_preempt_disabled+0x13/0x20 [ 768.834395][ T1042] __mutex_lock+0x726/0x1310 [ 768.839027][ T1042] ? mount_bdev+0x93/0x3c0 [ 768.843597][ T1042] ? mutex_trylock+0x1e0/0x1e0 [ 768.848413][ T1042] ? bd_may_claim+0xd0/0xd0 [ 768.853156][ T1042] ? vfs_parse_fs_string+0x111/0x170 [ 768.858495][ T1042] mutex_lock_nested+0x16/0x20 [ 768.863389][ T1042] ? mutex_lock_nested+0x16/0x20 [ 768.868373][ T1042] mount_bdev+0x93/0x3c0 [ 768.872749][ T1042] ? udf_load_vrs+0xc80/0xc80 [ 768.877470][ T1042] ? vfs_parse_fs_string+0x116/0x170 [ 768.883017][ T1042] udf_mount+0x35/0x40 [ 768.887136][ T1042] ? udf_get_pblock_meta25+0x3a0/0x3a0 [ 768.892748][ T1042] legacy_get_tree+0xf2/0x200 [ 768.897493][ T1042] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 768.903904][ T1042] vfs_get_tree+0x123/0x450 [ 768.908456][ T1042] do_mount+0x1436/0x2c40 [ 768.912795][ T1042] ? copy_mount_string+0x40/0x40 [ 768.917917][ T1042] ? _copy_from_user+0xdd/0x150 [ 768.922792][ T1042] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 768.929086][ T1042] ? copy_mount_options+0x280/0x3a0 [ 768.934426][ T1042] ksys_mount+0xdb/0x150 [ 768.938706][ T1042] __x64_sys_mount+0xbe/0x150 [ 768.943534][ T1042] do_syscall_64+0x103/0x610 [ 768.949064][ T1042] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 768.955007][ T1042] RIP: 0033:0x44a739 [ 768.959046][ T1042] Code: 00 49 6e 76 61 6c 69 64 20 22 24 41 63 74 69 6f 6e 51 75 65 75 65 43 68 65 63 6b 70 6f 69 6e 74 49 6e 74 65 72 76 61 6c 22 2c <20> 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 [ 768.978703][ T1042] RSP: 002b:00007f9541ef0db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 768.987283][ T1042] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044a739 [ 768.995519][ T1042] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000020000080 [ 769.003491][ T1042] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 769.011744][ T1042] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 769.019970][ T1042] R13: 00007ffc6cf3cddf R14: 00007f9541ef19c0 R15: 0000000000000000 [ 769.028216][ T1042] INFO: task syz-executor013:7562 blocked for more than 144 seconds. [ 769.036488][ T1042] Not tainted 5.1.0-rc6+ #90 [ 769.041593][ T1042] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 769.050508][ T1042] syz-executor013 D29720 7562 7546 0x00000004 [ 769.057086][ T1042] Call Trace: [ 769.060405][ T1042] __schedule+0x813/0x1cc0 [ 769.065110][ T1042] ? __mutex_lock+0x721/0x1310 [ 769.069878][ T1042] ? __sched_text_start+0x8/0x8 [ 769.074730][ T1042] schedule+0x92/0x180 [ 769.079874][ T1042] schedule_preempt_disabled+0x13/0x20 [ 769.085567][ T1042] __mutex_lock+0x726/0x1310 [ 769.090156][ T1042] ? mount_bdev+0x93/0x3c0 [ 769.094587][ T1042] ? mutex_trylock+0x1e0/0x1e0 [ 769.099654][ T1042] ? bd_may_claim+0xd0/0xd0 [ 769.104164][ T1042] ? vfs_parse_fs_string+0x111/0x170 [ 769.109790][ T1042] mutex_lock_nested+0x16/0x20 [ 769.114552][ T1042] ? mutex_lock_nested+0x16/0x20 [ 769.119731][ T1042] mount_bdev+0x93/0x3c0 [ 769.123967][ T1042] ? udf_load_vrs+0xc80/0xc80 [ 769.128966][ T1042] ? vfs_parse_fs_string+0x116/0x170 [ 769.134260][ T1042] udf_mount+0x35/0x40 [ 769.138611][ T1042] ? udf_get_pblock_meta25+0x3a0/0x3a0 [ 769.144069][ T1042] legacy_get_tree+0xf2/0x200 [ 769.148992][ T1042] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 769.155565][ T1042] vfs_get_tree+0x123/0x450 [ 769.160068][ T1042] do_mount+0x1436/0x2c40 [ 769.164397][ T1042] ? copy_mount_string+0x40/0x40 [ 769.169585][ T1042] ? _copy_from_user+0xdd/0x150 [ 769.174435][ T1042] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 769.180948][ T1042] ? copy_mount_options+0x280/0x3a0 [ 769.186353][ T1042] ksys_mount+0xdb/0x150 [ 769.190596][ T1042] __x64_sys_mount+0xbe/0x150 [ 769.195513][ T1042] do_syscall_64+0x103/0x610 [ 769.200101][ T1042] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 769.207055][ T1042] RIP: 0033:0x44a739 [ 769.210958][ T1042] Code: 00 49 6e 76 61 6c 69 64 20 22 24 41 63 74 69 6f 6e 51 75 65 75 65 43 68 65 63 6b 70 6f 69 6e 74 49 6e 74 65 72 76 61 6c 22 2c <20> 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 [ 769.230833][ T1042] RSP: 002b:00007f9541ef0db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 769.239504][ T1042] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044a739 [ 769.247745][ T1042] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000020000080 [ 769.255934][ T1042] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 769.263903][ T1042] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 769.272144][ T1042] R13: 00007ffc6cf3cddf R14: 00007f9541ef19c0 R15: 0000000000000000 [ 769.280357][ T1042] [ 769.280357][ T1042] Showing all locks held in the system: [ 769.288320][ T1042] 1 lock held by khungtaskd/1042: [ 769.293332][ T1042] #0: 000000006329251d (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e [ 769.303003][ T1042] 1 lock held by rsyslogd/7425: [ 769.308092][ T1042] #0: 00000000d77ddd95 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 769.316994][ T1042] 2 locks held by getty/7515: [ 769.321658][ T1042] #0: 000000004c45b4e6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 769.330857][ T1042] #1: 00000000cb1f5c30 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 769.341530][ T1042] 2 locks held by getty/7516: [ 769.346430][ T1042] #0: 0000000061e5eac7 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 769.355629][ T1042] #1: 00000000aab03c35 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 769.365512][ T1042] 2 locks held by getty/7517: [ 769.370176][ T1042] #0: 00000000205ee5b4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 769.379359][ T1042] #1: 0000000002712bdb (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 769.389227][ T1042] 2 locks held by getty/7518: [ 769.393891][ T1042] #0: 000000000cc046b2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 769.408494][ T1042] #1: 00000000d5140a4a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 769.418291][ T1042] 2 locks held by getty/7519: [ 769.422966][ T1042] #0: 000000003624da6d (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 769.432226][ T1042] #1: 00000000f5b16893 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 769.442027][ T1042] 2 locks held by getty/7520: [ 769.446931][ T1042] #0: 0000000082294f91 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 769.456132][ T1042] #1: 00000000870dfcb5 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 769.466699][ T1042] 2 locks held by getty/7521: [ 769.472073][ T1042] #0: 000000000f72fa86 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 769.481384][ T1042] #1: 00000000a044b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 769.491648][ T1042] 2 locks held by syz-executor013/7547: [ 769.497458][ T1042] 1 lock held by syz-executor013/7561: [ 769.502908][ T1042] #0: 00000000d97cb347 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 769.512707][ T1042] 1 lock held by syz-executor013/7563: [ 769.518395][ T1042] #0: 00000000d97cb347 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 769.528048][ T1042] 2 locks held by syz-executor013/7559: [ 769.533585][ T1042] #0: 00000000d97cb347 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 769.543245][ T1042] #1: 000000001ecfe564 (&type->s_umount_key#39){+.+.}, at: grab_super+0xb4/0x290 [ 769.552721][ T1042] 1 lock held by syz-executor013/7565: [ 769.558422][ T1042] #0: 00000000d97cb347 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 769.568068][ T1042] 1 lock held by syz-executor013/7562: [ 769.573513][ T1042] #0: 00000000d97cb347 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 769.583183][ T1042] [ 769.585751][ T1042] ============================================= [ 769.585751][ T1042] [ 769.594153][ T1042] NMI backtrace for cpu 1 [ 769.598535][ T1042] CPU: 1 PID: 1042 Comm: khungtaskd Not tainted 5.1.0-rc6+ #90 [ 769.606068][ T1042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 769.616138][ T1042] Call Trace: [ 769.619493][ T1042] dump_stack+0x172/0x1f0 [ 769.623825][ T1042] nmi_cpu_backtrace.cold+0x63/0xa4 [ 769.629075][ T1042] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 769.634703][ T1042] nmi_trigger_cpumask_backtrace+0x1be/0x236 [ 769.640680][ T1042] arch_trigger_cpumask_backtrace+0x14/0x20 [ 769.646575][ T1042] watchdog+0x9b7/0xec0 [ 769.650818][ T1042] kthread+0x357/0x430 [ 769.654885][ T1042] ? reset_hung_task_detector+0x30/0x30 [ 769.660422][ T1042] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 769.666665][ T1042] ret_from_fork+0x3a/0x50 [ 769.671151][ T1042] Sending NMI from CPU 1 to CPUs 0: [ 769.677189][ C0] NMI backtrace for cpu 0 [ 769.677194][ C0] CPU: 0 PID: 7547 Comm: syz-executor013 Not tainted 5.1.0-rc6+ #90 [ 769.677200][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 769.677204][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x50 [ 769.677215][ C0] Code: 25 b4 7e ec 08 41 bc f4 ff ff ff e8 cd 5d ea ff 48 c7 05 9e 7e ec 08 00 00 00 00 e9 a4 e9 ff ff 90 90 90 90 90 90 90 90 90 55 <48> 89 e5 48 8b 75 08 65 48 8b 04 25 00 ee 01 00 65 8b 15 c8 60 91 [ 769.677219][ C0] RSP: 0018:ffff8880973ef470 EFLAGS: 00000246 [ 769.677226][ C0] RAX: 0000000000000000 RBX: ffff8880973ef568 RCX: ffffffff870d9383 [ 769.677231][ C0] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000007 [ 769.677235][ C0] RBP: ffff8880973ef4b0 R08: ffff88808c9fe080 R09: ffffed1015d05bc8 [ 769.677240][ C0] R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: ffff8880a0dc9442 [ 769.677245][ C0] R13: ffff8880973ef580 R14: 0000000000000138 R15: ffff8880a0dc9442 [ 769.677250][ C0] FS: 00007f9541ef1700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 769.677254][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 769.677258][ C0] CR2: 0000000000c02000 CR3: 00000000a9780000 CR4: 00000000001406f0 [ 769.677263][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 769.677268][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 769.677270][ C0] Call Trace: [ 769.677273][ C0] ? xas_start+0x211/0x560 [ 769.677276][ C0] xas_load+0x21/0x150 [ 769.677280][ C0] ? rcu_dynticks_curr_cpu_in_eqs+0x54/0xb0 [ 769.677283][ C0] find_get_entry+0x13d/0x880 [ 769.677286][ C0] ? kasan_check_read+0x11/0x20 [ 769.677290][ C0] ? find_get_entries_tag+0xc10/0xc10 [ 769.677293][ C0] ? mark_held_locks+0xa4/0xf0 [ 769.677296][ C0] pagecache_get_page+0x4c/0x740 [ 769.677299][ C0] __find_get_block+0x501/0xcf0 [ 769.677303][ C0] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 769.677306][ C0] __getblk_gfp+0x1b1/0x970 [ 769.677309][ C0] __bread_gfp+0x2f/0x300 [ 769.677312][ C0] udf_tread+0xf1/0x140 [ 769.677315][ C0] udf_read_tagged+0x50/0x530 [ 769.677318][ C0] udf_check_anchor_block+0x1ef/0x680 [ 769.677321][ C0] ? blkpg_ioctl+0xa90/0xa90 [ 769.677325][ C0] ? udf_process_sequence+0x35d0/0x35d0 [ 769.677328][ C0] ? submit_bio+0xba/0x480 [ 769.677331][ C0] udf_scan_anchors+0x1cf/0x680 [ 769.677335][ C0] ? udf_check_anchor_block+0x680/0x680 [ 769.677339][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 769.677342][ C0] ? udf_get_last_session+0x120/0x120 [ 769.677346][ C0] udf_load_vrs+0x8bf/0xc80 [ 769.677349][ C0] ? udf_scan_anchors+0x680/0x680 [ 769.677352][ C0] ? udf_bread+0x260/0x260 [ 769.677355][ C0] ? lockdep_init_map+0x1be/0x6d0 [ 769.677358][ C0] udf_fill_super+0x7d8/0x16d1 [ 769.677361][ C0] ? udf_load_vrs+0xc80/0xc80 [ 769.677364][ C0] ? vsprintf+0x40/0x40 [ 769.677367][ C0] ? set_blocksize+0x2bf/0x340 [ 769.677371][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 769.677374][ C0] mount_bdev+0x307/0x3c0 [ 769.677376][ C0] ? udf_load_vrs+0xc80/0xc80 [ 769.677379][ C0] udf_mount+0x35/0x40 [ 769.677382][ C0] ? udf_get_pblock_meta25+0x3a0/0x3a0 [ 769.677385][ C0] legacy_get_tree+0xf2/0x200 [ 769.677388][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 769.677391][ C0] vfs_get_tree+0x123/0x450 [ 769.677394][ C0] do_mount+0x1436/0x2c40 [ 769.677397][ C0] ? copy_mount_string+0x40/0x40 [ 769.677400][ C0] ? _copy_from_user+0xdd/0x150 [ 769.677403][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 769.677406][ C0] ? copy_mount_options+0x280/0x3a0 [ 769.677409][ C0] ksys_mount+0xdb/0x150 [ 769.677412][ C0] __x64_sys_mount+0xbe/0x150 [ 769.677415][ C0] do_syscall_64+0x103/0x610 [ 769.677418][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 769.677421][ C0] RIP: 0033:0x44a739 [ 769.677438][ C0] Code: 4d cb fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 1b cb fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 769.677442][ C0] RSP: 002b:00007f9541ef0db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 769.677454][ C0] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044a739 [ 769.677458][ C0] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000020000080 [ 769.677462][ C0] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 769.677467][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 769.677471][ C0] R13: 00007ffc6cf3cddf R14: 00007f9541ef19c0 R15: 0000000000000000 [ 769.680389][ T1042] Kernel panic - not syncing: hung_task: blocked tasks [ 770.124041][ T1042] CPU: 1 PID: 1042 Comm: khungtaskd Not tainted 5.1.0-rc6+ #90 [ 770.131570][ T1042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 770.141616][ T1042] Call Trace: [ 770.144926][ T1042] dump_stack+0x172/0x1f0 [ 770.149350][ T1042] panic+0x2cb/0x65c [ 770.153241][ T1042] ? __warn_printk+0xf3/0xf3 [ 770.157826][ T1042] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 770.163454][ T1042] ? ___preempt_schedule+0x16/0x18 [ 770.168559][ T1042] ? nmi_trigger_cpumask_backtrace+0x19e/0x236 [ 770.174704][ T1042] ? nmi_trigger_cpumask_backtrace+0x1fa/0x236 [ 770.180852][ T1042] ? nmi_trigger_cpumask_backtrace+0x204/0x236 [ 770.186999][ T1042] ? nmi_trigger_cpumask_backtrace+0x19e/0x236 [ 770.193147][ T1042] watchdog+0x9c8/0xec0 [ 770.197301][ T1042] kthread+0x357/0x430 [ 770.201358][ T1042] ? reset_hung_task_detector+0x30/0x30 [ 770.206917][ T1042] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 770.213167][ T1042] ret_from_fork+0x3a/0x50 [ 770.219050][ T1042] Kernel Offset: disabled [ 770.223376][ T1042] Rebooting in 86400 seconds..