Warning: Permanently added '10.128.15.203' (ECDSA) to the list of known hosts. 2020/06/15 08:49:31 fuzzer started 2020/06/15 08:49:31 connecting to host at 10.128.0.26:37753 2020/06/15 08:49:31 checking machine... 2020/06/15 08:49:31 checking revisions... 2020/06/15 08:49:31 testing simple program... syzkaller login: [ 35.097616][ T3640] kmemleak: Automatic memory scanning thread ended executing program executing program [ 42.706962][ T6424] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6424 [ 42.716150][ T6424] caller is ext4_mb_new_blocks+0x361/0x1010 [ 42.722207][ T6424] CPU: 1 PID: 6424 Comm: syz-fuzzer Not tainted 5.8.0-rc1-syzkaller #0 [ 42.730465][ T6424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.740519][ T6424] Call Trace: [ 42.743779][ T6424] dump_stack+0xbb/0xe3 [ 42.747913][ T6424] check_preemption_disabled+0xf8/0x100 [ 42.754326][ T6424] ext4_mb_new_blocks+0x361/0x1010 [ 42.759457][ T6424] ? ext4_ext_search_right+0x141/0x3d0 [ 42.765490][ T6424] ? ext4_inode_to_goal_block+0xca/0x110 [ 42.771087][ T6424] ext4_ext_map_blocks+0xbbc/0x11e0 [ 42.776272][ T6424] ? check_preemption_disabled+0x2c/0x100 [ 42.781982][ T6424] ext4_map_blocks+0x128/0x7b0 [ 42.786716][ T6424] ? __brelse+0x15/0x40 [ 42.790856][ T6424] ext4_getblk+0x5f/0x270 [ 42.795169][ T6424] ext4_bread+0x3d/0x140 [ 42.799375][ T6424] ext4_append+0x5a/0x110 [ 42.803670][ T6424] ext4_mkdir+0x294/0x570 [ 42.807966][ T6424] vfs_mkdir+0x136/0x230 [ 42.812183][ T6424] do_mkdirat+0x11a/0x160 [ 42.816477][ T6424] do_syscall_64+0x4b/0xb0 [ 42.820855][ T6424] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.826711][ T6424] RIP: 0033:0x4b02a0 [ 42.830565][ T6424] Code: Bad RIP value. [ 42.834607][ T6424] RSP: 002b:000000c00011f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 42.842990][ T6424] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 42.850925][ T6424] RDX: 00000000000001c0 RSI: 000000c000026b00 RDI: ffffffffffffff9c [ 42.858859][ T6424] RBP: 000000c00011f510 R08: 0000000000000000 R09: 0000000000000000 [ 42.866803][ T6424] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 42.874758][ T6424] R13: 0000000000000059 R14: 0000000000000058 R15: 0000000000000100 [ 42.884914][ T25] audit: type=1400 audit(1592210979.109:8): avc: denied { execmem } for pid=6440 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 42.886338][ T6440] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6440 [ 42.914929][ T6440] caller is ext4_mb_new_blocks+0x361/0x1010 [ 42.920852][ T6440] CPU: 0 PID: 6440 Comm: syz-executor.0 Not tainted 5.8.0-rc1-syzkaller #0 [ 42.929405][ T6440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.939433][ T6440] Call Trace: [ 42.942692][ T6440] dump_stack+0xbb/0xe3 [ 42.946821][ T6440] check_preemption_disabled+0xf8/0x100 [ 42.952336][ T6440] ext4_mb_new_blocks+0x361/0x1010 [ 42.957413][ T6440] ? ext4_ext_search_right+0x141/0x3d0 [ 42.963109][ T6440] ? ext4_inode_to_goal_block+0xca/0x110 [ 42.968734][ T6440] ext4_ext_map_blocks+0xbbc/0x11e0 [ 42.973903][ T6440] ? check_preemption_disabled+0x2c/0x100 [ 42.979588][ T6440] ext4_map_blocks+0x128/0x7b0 [ 42.984316][ T6440] ? __brelse+0x15/0x40 [ 42.988437][ T6440] ext4_getblk+0x5f/0x270 [ 42.992742][ T6440] ext4_bread+0x3d/0x140 [ 42.996961][ T6440] ext4_append+0x5a/0x110 [ 43.001269][ T6440] ext4_mkdir+0x294/0x570 [ 43.005578][ T6440] vfs_mkdir+0x136/0x230 [ 43.009787][ T6440] do_mkdirat+0x11a/0x160 [ 43.014083][ T6440] do_syscall_64+0x4b/0xb0 [ 43.018556][ T6440] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.024411][ T6440] RIP: 0033:0x45bed7 [ 43.028268][ T6440] Code: Bad RIP value. [ 43.032312][ T6440] RSP: 002b:00007ffc7e100198 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 43.040686][ T6440] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bed7 [ 43.048691][ T6440] RDX: 0000000000000001 RSI: 00000000000001c0 RDI: 00007ffc7e100370 [ 43.056700][ T6440] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000001dc0 [ 43.064647][ T6440] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 43.072602][ T6440] R13: 00007ffc7e100370 R14: 8421084210842109 R15: 00007ffc7e10037c [ 43.104913][ T6441] IPVS: ftp: loaded support on port[0] = 21 [ 43.121120][ T6441] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6441 [ 43.130541][ T6441] caller is ext4_mb_new_blocks+0x361/0x1010 [ 43.136400][ T6441] CPU: 1 PID: 6441 Comm: syz-executor.0 Not tainted 5.8.0-rc1-syzkaller #0 [ 43.145221][ T6441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.155242][ T6441] Call Trace: [ 43.158498][ T6441] dump_stack+0xbb/0xe3 [ 43.162637][ T6441] check_preemption_disabled+0xf8/0x100 [ 43.168193][ T6441] ext4_mb_new_blocks+0x361/0x1010 [ 43.173269][ T6441] ? ext4_ext_search_right+0x141/0x3d0 [ 43.178688][ T6441] ? ext4_inode_to_goal_block+0xca/0x110 [ 43.184283][ T6441] ext4_ext_map_blocks+0xbbc/0x11e0 [ 43.189450][ T6441] ? check_preemption_disabled+0x2c/0x100 [ 43.195144][ T6441] ext4_map_blocks+0x128/0x7b0 [ 43.199879][ T6441] ? __brelse+0x15/0x40 [ 43.204004][ T6441] ext4_getblk+0x5f/0x270 [ 43.208303][ T6441] ext4_bread+0x3d/0x140 [ 43.212521][ T6441] ext4_append+0x5a/0x110 [ 43.216818][ T6441] ext4_mkdir+0x294/0x570 [ 43.221138][ T6441] vfs_mkdir+0x136/0x230 [ 43.225345][ T6441] do_mkdirat+0x11a/0x160 [ 43.229753][ T6441] do_syscall_64+0x4b/0xb0 [ 43.234136][ T6441] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.239991][ T6441] RIP: 0033:0x45bed7 [ 43.243847][ T6441] Code: Bad RIP value. [ 43.247878][ T6441] RSP: 002b:00007ffc7e100088 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 43.256265][ T6441] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bed7 [ 43.264300][ T6441] RDX: 00007ffc7e1000d3 RSI: 00000000000001ff RDI: 00007ffc7e1000d0 [ 43.272684][ T6441] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 43.280635][ T6441] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185c0 [ 43.288587][ T6441] R13: 00007ffc7e1000c0 R14: 0000000000000000 R15: 00007ffc7e1000d0 [ 43.321759][ T6441] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6441 [ 43.331190][ T6441] caller is ext4_mb_new_blocks+0x361/0x1010 [ 43.337083][ T6441] CPU: 1 PID: 6441 Comm: syz-executor.0 Not tainted 5.8.0-rc1-syzkaller #0 [ 43.345661][ T6441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.355693][ T6441] Call Trace: [ 43.358954][ T6441] dump_stack+0xbb/0xe3 [ 43.363080][ T6441] check_preemption_disabled+0xf8/0x100 [ 43.368592][ T6441] ext4_mb_new_blocks+0x361/0x1010 [ 43.373677][ T6441] ? ext4_ext_search_right+0x141/0x3d0 [ 43.379197][ T6441] ? ext4_inode_to_goal_block+0xca/0x110 [ 43.384793][ T6441] ext4_ext_map_blocks+0xbbc/0x11e0 [ 43.389967][ T6441] ? check_preemption_disabled+0x2c/0x100 [ 43.395659][ T6441] ext4_map_blocks+0x128/0x7b0 [ 43.400388][ T6441] ? __brelse+0x15/0x40 [ 43.404505][ T6441] ext4_getblk+0x5f/0x270 [ 43.408798][ T6441] ext4_bread+0x3d/0x140 [ 43.413003][ T6441] ext4_append+0x5a/0x110 [ 43.417295][ T6441] ext4_mkdir+0x294/0x570 [ 43.421588][ T6441] vfs_mkdir+0x136/0x230 [ 43.425803][ T6441] do_mkdirat+0x11a/0x160 [ 43.430109][ T6441] do_syscall_64+0x4b/0xb0 [ 43.434490][ T6441] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.440362][ T6441] RIP: 0033:0x45bed7 [ 43.444232][ T6441] Code: Bad RIP value. [ 43.448260][ T6441] RSP: 002b:00007ffc7e100088 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 43.456632][ T6441] RAX: ffffffffffffffda RBX: 000000000000a93f RCX: 000000000045bed7 [ 43.464579][ T6441] RDX: 00007ffc7e1000d3 RSI: 00000000000001ff RDI: 00007ffc7e1000d0 2020/06/15 08:49:39 building call list... [ 43.472512][ T6441] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 43.480470][ T6441] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 43.488421][ T6441] R13: 00007ffc7e1000c0 R14: 000000000000a935 R15: 00007ffc7e1000d0 [ 43.677603][ T55] tipc: TX() has been purged, node left! executing program [ 44.271004][ T6467] can: request_module (can-proto-0) failed. [ 44.562074][ T6467] can: request_module (can-proto-0) failed. [ 44.569698][ T6467] can: request_module (can-proto-7) failed. [ 44.577239][ T6467] can: request_module (can-proto-0) failed. [ 44.595256][ T25] audit: type=1400 audit(1592210980.819:9): avc: denied { create } for pid=6420 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1