[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ 37.785940][ T6729] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6729 [ 37.795664][ T6729] caller is ext4_mb_new_blocks+0x301/0x1620 [ 37.802221][ T6729] CPU: 0 PID: 6729 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 37.802234][ T6729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.820534][ T6729] Call Trace: [ 37.823818][ T6729] dump_stack+0x1f0/0x31e [ 37.828157][ T6729] check_preemption_disabled+0x1c9/0x240 [[ 37.833798][ T6729] ext4_mb_new_blocks+0x301/0x1620 [ 37.838998][ T6729] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 37.844541][ T6729] ? lock_acquire+0x169/0x480 [ 37.849261][ T6729] ? ext4_map_blocks+0x7ea/0x19e0 [ 37.854324][ T6729] ext4_map_blocks+0x8c1/0x19e0 [ 37.859342][ T6729] ext4_getblk+0xa4/0x460  OK [0[ 37.863697][ T6729] ext4_bread+0x48/0x330 [ 37.869327][ T6729] ext4_append+0x153/0x2d0 m] Started Updat[ 37.873742][ T6729] ext4_mkdir+0x75f/0x14c0 [ 37.879550][ T6729] vfs_mkdir+0x42a/0x620 e UTMP about Sys[ 37.883798][ T6729] do_mkdirat+0x1b9/0x310 [ 37.889516][ T6729] do_syscall_64+0xf3/0x1b0 tem Runlevel Cha[ 37.894029][ T6729] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 37.901300][ T6729] RIP: 0033:0x7febf9ae4687 [ 37.905713][ T6729] Code: Bad RIP value. nges. [ 37.909765][ T6729] RSP: 002b:00007ffd9972a518 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 37.918751][ T6729] RAX: ffffffffffffffda RBX: 000056351fcab985 RCX: 00007febf9ae4687 [ 37.926720][ T6729] RDX: 00007ffd9972a3e0 RSI: 00000000000001ed RDI: 000056351fcab985 [ 37.934769][ T6729] RBP: 00007febf9ae4680 R08: 0000000000000100 R09: 0000000000000000 [ 37.942717][ T6729] R10: 000056351fcab980 R11: 0000000000000246 R12: 00000000000001ed [ 37.950684][ T6729] R13: 00007ffd9972a6a0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. 2020/06/12 03:05:18 fuzzer started 2020/06/12 03:05:18 connecting to host at 10.128.0.26:45303 2020/06/12 03:05:18 checking machine... 2020/06/12 03:05:18 checking revisions... 2020/06/12 03:05:18 testing simple program... syzkaller login: [ 43.504450][ T6809] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6809 [ 43.513605][ T6809] caller is ext4_mb_new_blocks+0x301/0x1620 [ 43.519574][ T6809] CPU: 0 PID: 6809 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 43.527492][ T6809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.537537][ T6809] Call Trace: [ 43.540840][ T6809] dump_stack+0x1f0/0x31e [ 43.545177][ T6809] check_preemption_disabled+0x1c9/0x240 [ 43.550916][ T6809] ext4_mb_new_blocks+0x301/0x1620 [ 43.556023][ T6809] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 43.561299][ T6809] ? lock_acquire+0x169/0x480 [ 43.566007][ T6809] ? ext4_map_blocks+0x7ea/0x19e0 [ 43.571029][ T6809] ext4_map_blocks+0x8c1/0x19e0 [ 43.575864][ T6809] ext4_getblk+0xa4/0x460 [ 43.580169][ T6809] ext4_bread+0x48/0x330 [ 43.584399][ T6809] ext4_append+0x153/0x2d0 [ 43.588800][ T6809] ext4_mkdir+0x75f/0x14c0 [ 43.593212][ T6809] vfs_mkdir+0x42a/0x620 [ 43.597430][ T6809] do_mkdirat+0x1b9/0x310 [ 43.601738][ T6809] do_syscall_64+0xf3/0x1b0 [ 43.606227][ T6809] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 43.612091][ T6809] RIP: 0033:0x4b02a0 [ 43.615952][ T6809] Code: Bad RIP value. [ 43.620085][ T6809] RSP: 002b:000000c0003cb4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 43.628464][ T6809] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 43.636406][ T6809] RDX: 00000000000001c0 RSI: 000000c0002ca6a0 RDI: ffffffffffffff9c [ 43.644349][ T6809] RBP: 000000c0003cb510 R08: 0000000000000000 R09: 0000000000000000 [ 43.652291][ T6809] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 43.660235][ T6809] R13: 0000000000000036 R14: 0000000000000035 R15: 0000000000000100 [ 43.681162][ T6813] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6813 [ 43.690834][ T6813] caller is ext4_mb_new_blocks+0x301/0x1620 [ 43.697263][ T6813] CPU: 1 PID: 6813 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 43.705496][ T6813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.715539][ T6813] Call Trace: [ 43.718894][ T6813] dump_stack+0x1f0/0x31e [ 43.723259][ T6813] check_preemption_disabled+0x1c9/0x240 [ 43.728867][ T6813] ext4_mb_new_blocks+0x301/0x1620 [ 43.734016][ T6813] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 43.739295][ T6813] ? lock_acquire+0x169/0x480 [ 43.743942][ T6813] ? ext4_map_blocks+0x7ea/0x19e0 [ 43.748946][ T6813] ext4_map_blocks+0x8c1/0x19e0 [ 43.753806][ T6813] ext4_getblk+0xa4/0x460 [ 43.758117][ T6813] ext4_bread+0x48/0x330 [ 43.762333][ T6813] ext4_append+0x153/0x2d0 [ 43.766724][ T6813] ext4_mkdir+0x75f/0x14c0 [ 43.771125][ T6813] vfs_mkdir+0x42a/0x620 [ 43.775342][ T6813] do_mkdirat+0x1b9/0x310 [ 43.779652][ T6813] do_syscall_64+0xf3/0x1b0 [ 43.784140][ T6813] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 43.790003][ T6813] RIP: 0033:0x45bee7 [ 43.793868][ T6813] Code: Bad RIP value. [ 43.797926][ T6813] RSP: 002b:00007fff2e7261d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 43.806305][ T6813] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 43.814264][ T6813] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007fff2e7263b0 [ 43.822210][ T6813] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002a00 [ 43.830167][ T6813] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 43.838112][ T6813] R13: 00007fff2e7263b0 R14: 8421084210842109 R15: 00007fff2e7263bc [ 43.910961][ T6814] IPVS: ftp: loaded support on port[0] = 21 [ 43.944466][ T6814] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6814 [ 43.953954][ T6814] caller is ext4_mb_new_blocks+0x301/0x1620 [ 43.959821][ T6814] CPU: 0 PID: 6814 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 43.968042][ T6814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.978086][ T6814] Call Trace: [ 43.981367][ T6814] dump_stack+0x1f0/0x31e [ 43.985671][ T6814] check_preemption_disabled+0x1c9/0x240 [ 43.991280][ T6814] ext4_mb_new_blocks+0x301/0x1620 [ 43.996370][ T6814] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 44.001633][ T6814] ? lock_acquire+0x169/0x480 [ 44.006297][ T6814] ? ext4_map_blocks+0x7ea/0x19e0 [ 44.011303][ T6814] ext4_map_blocks+0x8c1/0x19e0 [ 44.016133][ T6814] ext4_getblk+0xa4/0x460 [ 44.020448][ T6814] ext4_bread+0x48/0x330 [ 44.024662][ T6814] ext4_append+0x153/0x2d0 [ 44.029054][ T6814] ext4_mkdir+0x75f/0x14c0 [ 44.033449][ T6814] vfs_mkdir+0x42a/0x620 [ 44.037665][ T6814] do_mkdirat+0x1b9/0x310 [ 44.041971][ T6814] do_syscall_64+0xf3/0x1b0 [ 44.046448][ T6814] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 44.052323][ T6814] RIP: 0033:0x45bee7 [ 44.056201][ T6814] Code: Bad RIP value. [ 44.060239][ T6814] RSP: 002b:00007fff2e7260c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 44.068618][ T6814] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 44.076559][ T6814] RDX: 00007fff2e726113 RSI: 00000000000001ff RDI: 00007fff2e726110 [ 44.084503][ T6814] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 44.092445][ T6814] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 44.100457][ T6814] R13: 00007fff2e726100 R14: 0000000000000000 R15: 00007fff2e726110 [ 44.157039][ T6814] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6814 [ 44.166607][ T6814] caller is ext4_mb_new_blocks+0x301/0x1620 [ 44.172486][ T6814] CPU: 1 PID: 6814 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 44.180697][ T6814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.190741][ T6814] Call Trace: [ 44.194062][ T6814] dump_stack+0x1f0/0x31e [ 44.198368][ T6814] check_preemption_disabled+0x1c9/0x240 [ 44.203976][ T6814] ext4_mb_new_blocks+0x301/0x1620 [ 44.209068][ T6814] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 44.214335][ T6814] ? lock_acquire+0x169/0x480 [ 44.218994][ T6814] ? ext4_map_blocks+0x7ea/0x19e0 [ 44.223999][ T6814] ext4_map_blocks+0x8c1/0x19e0 [ 44.228846][ T6814] ext4_getblk+0xa4/0x460 [ 44.233154][ T6814] ext4_bread+0x48/0x330 [ 44.237371][ T6814] ext4_append+0x153/0x2d0 [ 44.241760][ T6814] ext4_mkdir+0x75f/0x14c0 [ 44.246160][ T6814] vfs_mkdir+0x42a/0x620 [ 44.250378][ T6814] do_mkdirat+0x1b9/0x310 2020/06/12 03:05:19 building call list... [ 44.254683][ T6814] do_syscall_64+0xf3/0x1b0 [ 44.259164][ T6814] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 44.265029][ T6814] RIP: 0033:0x45bee7 [ 44.268889][ T6814] Code: Bad RIP value. [ 44.272934][ T6814] RSP: 002b:00007fff2e7260c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 44.281749][ T6814] RAX: ffffffffffffffda RBX: 000000000000ac72 RCX: 000000000045bee7 [ 44.289725][ T6814] RDX: 00007fff2e726113 RSI: 00000000000001ff RDI: 00007fff2e726110 [ 44.297683][ T6814] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 44.305626][ T6814] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 44.313586][ T6814] R13: 00007fff2e726100 R14: 000000000000ac58 R15: 00007fff2e726110 [ 44.543644][ T349] tipc: TX() has been purged, node left! [ 45.539099][ T6800] can: request_module (can-proto-0) failed. executing program [ 46.312473][ T6800] can: request_module (can-proto-0) failed. [ 46.324301][ T6800] can: request_module (can-proto-0) failed.