[ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ 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... [ OK ] Started Update UTMP about System Runlevel Changes. [ 37.447171][ T6768] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6768 [ 37.456645][ T6768] caller is ext4_mb_new_blocks+0x301/0x1620 [ 37.462933][ T6768] CPU: 0 PID: 6768 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 37.471154][ T6768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.481181][ T6768] Call Trace: [ 37.484458][ T6768] dump_stack+0x1f0/0x31e [ 37.488761][ T6768] check_preemption_disabled+0x1c9/0x240 [ 37.494381][ T6768] ext4_mb_new_blocks+0x301/0x1620 [ 37.499471][ T6768] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 37.504736][ T6768] ? lock_acquire+0x169/0x480 [ 37.509385][ T6768] ? ext4_map_blocks+0x7ea/0x19e0 [ 37.514401][ T6768] ext4_map_blocks+0x8c1/0x19e0 [ 37.519232][ T6768] ext4_getblk+0xa4/0x460 [ 37.523536][ T6768] ext4_bread+0x48/0x330 [ 37.527753][ T6768] ext4_append+0x153/0x2d0 [ 37.532186][ T6768] ext4_mkdir+0x75f/0x14c0 [ 37.536584][ T6768] vfs_mkdir+0x42a/0x620 [ 37.540816][ T6768] do_mkdirat+0x1b9/0x310 [ 37.545132][ T6768] do_syscall_64+0xf3/0x1b0 [ 37.550229][ T6768] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 37.556089][ T6768] RIP: 0033:0x7ff958213687 [ 37.560471][ T6768] Code: Bad RIP value. [ 37.564519][ T6768] RSP: 002b:00007ffcd0452dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 37.572895][ T6768] RAX: ffffffffffffffda RBX: 0000557c9b931985 RCX: 00007ff958213687 [ 37.580853][ T6768] RDX: 00007ffcd0452c90 RSI: 00000000000001ed RDI: 0000557c9b931985 [ 37.588816][ T6768] RBP: 00007ff958213680 R08: 0000000000000100 R09: 0000000000000000 [ 37.596785][ T6768] R10: 0000557c9b931980 R11: 0000000000000246 R12: 00000000000001ed [ 37.604733][ T6768] R13: 00007ffcd0452f50 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.215' (ECDSA) to the list of known hosts. 2020/06/13 02:16:07 fuzzer started 2020/06/13 02:16:07 connecting to host at 10.128.0.26:45835 2020/06/13 02:16:07 checking machine... 2020/06/13 02:16:07 checking revisions... 2020/06/13 02:16:07 testing simple program... syzkaller login: [ 43.115198][ T6820] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6820 [ 43.124263][ T6820] caller is ext4_mb_new_blocks+0x301/0x1620 [ 43.130130][ T6820] CPU: 1 PID: 6820 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 43.137985][ T6820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.148049][ T6820] Call Trace: [ 43.151317][ T6820] dump_stack+0x1f0/0x31e [ 43.155637][ T6820] check_preemption_disabled+0x1c9/0x240 [ 43.161269][ T6820] ext4_mb_new_blocks+0x301/0x1620 [ 43.166396][ T6820] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 43.171677][ T6820] ? lock_acquire+0x169/0x480 [ 43.176328][ T6820] ? ext4_map_blocks+0x7ea/0x19e0 [ 43.181380][ T6820] ext4_map_blocks+0x8c1/0x19e0 [ 43.186257][ T6820] ext4_getblk+0xa4/0x460 [ 43.190559][ T6820] ext4_bread+0x48/0x330 [ 43.194775][ T6820] ext4_append+0x153/0x2d0 [ 43.199164][ T6820] ext4_mkdir+0x75f/0x14c0 [ 43.203559][ T6820] vfs_mkdir+0x42a/0x620 [ 43.207776][ T6820] do_mkdirat+0x1b9/0x310 [ 43.212080][ T6820] do_syscall_64+0xf3/0x1b0 [ 43.216607][ T6820] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 43.222478][ T6820] RIP: 0033:0x4b02a0 [ 43.226342][ T6820] Code: Bad RIP value. [ 43.230378][ T6820] RSP: 002b:000000c0000cb4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 43.238759][ T6820] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 43.246705][ T6820] RDX: 00000000000001c0 RSI: 000000c0000e1160 RDI: ffffffffffffff9c [ 43.254649][ T6820] RBP: 000000c0000cb510 R08: 0000000000000000 R09: 0000000000000000 [ 43.262651][ T6820] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 43.270600][ T6820] R13: 000000000000008c R14: 000000000000008b R15: 0000000000000100 [ 43.292409][ T6837] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6837 [ 43.301915][ T6837] caller is ext4_mb_new_blocks+0x301/0x1620 [ 43.308177][ T6837] CPU: 0 PID: 6837 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 43.316416][ T6837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.326444][ T6837] Call Trace: [ 43.329709][ T6837] dump_stack+0x1f0/0x31e [ 43.334017][ T6837] check_preemption_disabled+0x1c9/0x240 [ 43.339650][ T6837] ext4_mb_new_blocks+0x301/0x1620 [ 43.344743][ T6837] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 43.350012][ T6837] ? lock_acquire+0x169/0x480 [ 43.354665][ T6837] ? ext4_map_blocks+0x7ea/0x19e0 [ 43.359670][ T6837] ext4_map_blocks+0x8c1/0x19e0 [ 43.364505][ T6837] ext4_getblk+0xa4/0x460 [ 43.368811][ T6837] ext4_bread+0x48/0x330 [ 43.373029][ T6837] ext4_append+0x153/0x2d0 [ 43.377435][ T6837] ext4_mkdir+0x75f/0x14c0 [ 43.381844][ T6837] vfs_mkdir+0x42a/0x620 [ 43.386062][ T6837] do_mkdirat+0x1b9/0x310 [ 43.390391][ T6837] do_syscall_64+0xf3/0x1b0 [ 43.394891][ T6837] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 43.400753][ T6837] RIP: 0033:0x45bee7 [ 43.404613][ T6837] Code: Bad RIP value. [ 43.408660][ T6837] RSP: 002b:00007ffed4f5fd28 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 43.417051][ T6837] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 43.424992][ T6837] RDX: 0000000000000001 RSI: 00000000000001c0 RDI: 00007ffed4f5ff00 [ 43.432934][ T6837] RBP: 0000000000000001 R08: 000000000000f8c2 R09: 0000000000001e80 [ 43.440885][ T6837] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 43.448840][ T6837] R13: 00007ffed4f5ff00 R14: 8421084210842109 R15: 00007ffed4f5ff0c [ 43.519595][ T6838] IPVS: ftp: loaded support on port[0] = 21 [ 43.552474][ T6838] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6838 [ 43.561923][ T6838] caller is ext4_mb_new_blocks+0x301/0x1620 [ 43.567974][ T6838] CPU: 1 PID: 6838 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 43.576192][ T6838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.586235][ T6838] Call Trace: [ 43.589500][ T6838] dump_stack+0x1f0/0x31e [ 43.593806][ T6838] check_preemption_disabled+0x1c9/0x240 [ 43.599435][ T6838] ext4_mb_new_blocks+0x301/0x1620 [ 43.604525][ T6838] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 43.609815][ T6838] ? lock_acquire+0x169/0x480 [ 43.614517][ T6838] ? ext4_map_blocks+0x7ea/0x19e0 [ 43.619523][ T6838] ext4_map_blocks+0x8c1/0x19e0 [ 43.624403][ T6838] ext4_getblk+0xa4/0x460 [ 43.628707][ T6838] ext4_bread+0x48/0x330 [ 43.632918][ T6838] ext4_append+0x153/0x2d0 [ 43.637325][ T6838] ext4_mkdir+0x75f/0x14c0 [ 43.641734][ T6838] vfs_mkdir+0x42a/0x620 [ 43.645951][ T6838] do_mkdirat+0x1b9/0x310 [ 43.650267][ T6838] do_syscall_64+0xf3/0x1b0 [ 43.654748][ T6838] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 43.660615][ T6838] RIP: 0033:0x45bee7 [ 43.664481][ T6838] Code: Bad RIP value. [ 43.668522][ T6838] RSP: 002b:00007ffed4f5fc18 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 43.676950][ T6838] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 43.684899][ T6838] RDX: 00007ffed4f5fc63 RSI: 00000000000001ff RDI: 00007ffed4f5fc60 [ 43.692839][ T6838] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 43.700804][ T6838] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 43.708759][ T6838] R13: 00007ffed4f5fc50 R14: 0000000000000000 R15: 00007ffed4f5fc60 [ 43.747895][ T6838] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6838 [ 43.757387][ T6838] caller is ext4_mb_new_blocks+0x301/0x1620 [ 43.763279][ T6838] CPU: 0 PID: 6838 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 43.771506][ T6838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.781575][ T6838] Call Trace: [ 43.784844][ T6838] dump_stack+0x1f0/0x31e [ 43.789150][ T6838] check_preemption_disabled+0x1c9/0x240 [ 43.794781][ T6838] ext4_mb_new_blocks+0x301/0x1620 [ 43.799873][ T6838] ext4_ext_map_blocks+0x2ad5/0x6d20 [ 43.805136][ T6838] ? lock_acquire+0x169/0x480 [ 43.809785][ T6838] ? ext4_map_blocks+0x7ea/0x19e0 [ 43.814788][ T6838] ext4_map_blocks+0x8c1/0x19e0 [ 43.819625][ T6838] ext4_getblk+0xa4/0x460 [ 43.823929][ T6838] ext4_bread+0x48/0x330 [ 43.828143][ T6838] ext4_append+0x153/0x2d0 [ 43.832530][ T6838] ext4_mkdir+0x75f/0x14c0 [ 43.836931][ T6838] vfs_mkdir+0x42a/0x620 [ 43.841151][ T6838] do_mkdirat+0x1b9/0x310 2020/06/13 02:16:08 building call list... [ 43.845456][ T6838] do_syscall_64+0xf3/0x1b0 [ 43.849931][ T6838] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 43.855792][ T6838] RIP: 0033:0x45bee7 [ 43.859663][ T6838] Code: Bad RIP value. [ 43.863697][ T6838] RSP: 002b:00007ffed4f5fc18 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 43.872076][ T6838] RAX: ffffffffffffffda RBX: 000000000000aae0 RCX: 000000000045bee7 [ 43.880024][ T6838] RDX: 00007ffed4f5fc63 RSI: 00000000000001ff RDI: 00007ffed4f5fc60 [ 43.887977][ T6838] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 43.895931][ T6838] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 43.903915][ T6838] R13: 00007ffed4f5fc50 R14: 000000000000aadc R15: 00007ffed4f5fc60 [ 44.123504][ T26] tipc: TX() has been purged, node left! [ 45.105903][ T6816] can: request_module (can-proto-0) failed. executing program [ 45.881339][ T6816] can: request_module (can-proto-0) failed. [ 45.892032][ T6816] can: request_module (can-proto-0) failed.