Warning: Permanently added '10.128.1.51' (ECDSA) to the list of known hosts. 2020/03/09 19:23:05 fuzzer started syzkaller login: [ 84.123583][ T9845] check_preemption_disabled: 3 callbacks suppressed [ 84.123596][ T9845] BUG: using __this_cpu_read() in preemptible [00000000] code: syz-fuzzer/9845 [ 84.141067][ T9845] caller is __mod_memcg_state+0x27/0x1a0 [ 84.146788][ T9845] CPU: 1 PID: 9845 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 84.156240][ T9845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.166290][ T9845] Call Trace: [ 84.169580][ T9845] dump_stack+0x188/0x20d [ 84.173964][ T9845] __this_cpu_preempt_check.cold+0x84/0x90 [ 84.179774][ T9845] __mod_memcg_state+0x27/0x1a0 [ 84.184622][ T9845] split_huge_page_to_list+0x124b/0x3380 [ 84.190270][ T9845] ? madvise_free_huge_pmd+0x869/0xb90 [ 84.195743][ T9845] ? can_split_huge_page+0x480/0x480 [ 84.201909][ T9845] ? pmd_val+0x7c/0xf0 [ 84.205972][ T9845] ? enabled_store+0x190/0x190 [ 84.210736][ T9845] madvise_free_huge_pmd+0x873/0xb90 [ 84.216117][ T9845] madvise_free_pte_range+0x6ff/0x2650 [ 84.221566][ T9845] ? mark_lock+0xbc/0x1220 [ 84.226057][ T9845] ? mark_held_locks+0x9f/0xe0 [ 84.230806][ T9845] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 84.237468][ T9845] __walk_page_range+0xcfb/0x2070 [ 84.242492][ T9845] ? walk_page_test+0x78/0x180 [ 84.247252][ T9845] walk_page_range+0x1bd/0x3a0 [ 84.252010][ T9845] ? __walk_page_range+0x2070/0x2070 [ 84.257289][ T9845] ? madvise_free_single_vma+0x2c1/0x550 [ 84.262919][ T9845] madvise_free_single_vma+0x384/0x550 [ 84.268381][ T9845] ? madvise_pageout+0x3b0/0x3b0 [ 84.273315][ T9845] ? lock_acquire+0x197/0x420 [ 84.277973][ T9845] ? userfaultfd_remove+0xf0/0x2b0 [ 84.283081][ T9845] ? vmacache_find+0x62/0x300 [ 84.287755][ T9845] ? find_vma+0x2b/0x170 [ 84.293122][ T9845] do_madvise+0x5ba/0x1b80 [ 84.297527][ T9845] ? lock_downgrade+0x7f0/0x7f0 [ 84.302372][ T9845] ? madvise_free_pte_range+0x2650/0x2650 [ 84.308244][ T9845] ? ktime_get+0x1f8/0x2f0 [ 84.312676][ T9845] ? __x64_sys_futex+0x376/0x4f0 [ 84.317623][ T9845] ? switch_fpu_return+0x1db/0x4b0 [ 84.322825][ T9845] ? fpregs_mark_activate+0x320/0x320 [ 84.328200][ T9845] ? __x64_sys_madvise+0xae/0x120 [ 84.333270][ T9845] __x64_sys_madvise+0xae/0x120 [ 84.338366][ T9845] ? lockdep_hardirqs_on+0x417/0x5d0 [ 84.343691][ T9845] do_syscall_64+0xf6/0x7d0 [ 84.348214][ T9845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.354093][ T9845] RIP: 0033:0x460bf7 [ 84.358087][ T9845] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 84.378033][ T9845] RSP: 002b:000000c000053e70 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 84.386450][ T9845] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 84.394423][ T9845] RDX: 0000000000000008 RSI: 000000000000a000 RDI: 000000c00029e000 [ 84.403436][ T9845] RBP: 000000c000053eb0 R08: 000000c000200000 R09: 000000c0002a8000 [ 84.411402][ T9845] R10: 00007fffffffffff R11: 0000000000000246 R12: 0000000000000032 [ 84.419364][ T9845] R13: 0000000000000000 R14: 0000000000ac76de R15: 0000000000000000 [ 84.427437][ T9845] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-fuzzer/9845 [ 84.436347][ T9845] caller is __mod_memcg_state+0xca/0x1a0 [ 84.441981][ T9845] CPU: 1 PID: 9845 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 84.451421][ T9845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.461722][ T9845] Call Trace: [ 84.465067][ T9845] dump_stack+0x188/0x20d [ 84.469419][ T9845] __this_cpu_preempt_check.cold+0x84/0x90 [ 84.475221][ T9845] __mod_memcg_state+0xca/0x1a0 [ 84.480094][ T9845] split_huge_page_to_list+0x124b/0x3380 [ 84.485772][ T9845] ? madvise_free_huge_pmd+0x869/0xb90 [ 84.491332][ T9845] ? can_split_huge_page+0x480/0x480 [ 84.496725][ T9845] ? pmd_val+0x7c/0xf0 [ 84.500784][ T9845] ? enabled_store+0x190/0x190 [ 84.505548][ T9845] madvise_free_huge_pmd+0x873/0xb90 [ 84.511001][ T9845] madvise_free_pte_range+0x6ff/0x2650 [ 84.516459][ T9845] ? mark_lock+0xbc/0x1220 [ 84.520884][ T9845] ? mark_held_locks+0x9f/0xe0 [ 84.525649][ T9845] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 84.532329][ T9845] __walk_page_range+0xcfb/0x2070 [ 84.537369][ T9845] ? walk_page_test+0x78/0x180 [ 84.542253][ T9845] walk_page_range+0x1bd/0x3a0 [ 84.547002][ T9845] ? __walk_page_range+0x2070/0x2070 [ 84.552298][ T9845] ? madvise_free_single_vma+0x2c1/0x550 [ 84.557921][ T9845] madvise_free_single_vma+0x384/0x550 [ 84.563362][ T9845] ? madvise_pageout+0x3b0/0x3b0 [ 84.568294][ T9845] ? lock_acquire+0x197/0x420 [ 84.572954][ T9845] ? userfaultfd_remove+0xf0/0x2b0 [ 84.578054][ T9845] ? vmacache_find+0x62/0x300 [ 84.582718][ T9845] ? find_vma+0x2b/0x170 [ 84.586973][ T9845] do_madvise+0x5ba/0x1b80 [ 84.591474][ T9845] ? lock_downgrade+0x7f0/0x7f0 [ 84.596339][ T9845] ? madvise_free_pte_range+0x2650/0x2650 [ 84.602068][ T9845] ? ktime_get+0x1f8/0x2f0 [ 84.606482][ T9845] ? __x64_sys_futex+0x376/0x4f0 [ 84.611591][ T9845] ? switch_fpu_return+0x1db/0x4b0 [ 84.616697][ T9845] ? fpregs_mark_activate+0x320/0x320 [ 84.622064][ T9845] ? __x64_sys_madvise+0xae/0x120 [ 84.627091][ T9845] __x64_sys_madvise+0xae/0x120 [ 84.631936][ T9845] ? lockdep_hardirqs_on+0x417/0x5d0 [ 84.637221][ T9845] do_syscall_64+0xf6/0x7d0 [ 84.641713][ T9845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.647601][ T9845] RIP: 0033:0x460bf7 [ 84.651475][ T9845] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 84.671083][ T9845] RSP: 002b:000000c000053e70 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 84.679596][ T9845] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 84.687778][ T9845] RDX: 0000000000000008 RSI: 000000000000a000 RDI: 000000c00029e000 [ 84.695918][ T9845] RBP: 000000c000053eb0 R08: 000000c000200000 R09: 000000c0002a8000 [ 84.704404][ T9845] R10: 00007fffffffffff R11: 0000000000000246 R12: 0000000000000032 [ 84.713821][ T9845] R13: 0000000000000000 R14: 0000000000ac76de R15: 0000000000000000 [ 84.722367][ T9845] BUG: using __this_cpu_write() in preemptible [00000000] code: syz-fuzzer/9845 [ 84.731626][ T9845] caller is __mod_memcg_state+0x87/0x1a0 [ 84.737423][ T9845] CPU: 1 PID: 9845 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 84.746889][ T9845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.757193][ T9845] Call Trace: [ 84.760484][ T9845] dump_stack+0x188/0x20d [ 84.765004][ T9845] __this_cpu_preempt_check.cold+0x84/0x90 [ 84.770817][ T9845] __mod_memcg_state+0x87/0x1a0 [ 84.775748][ T9845] split_huge_page_to_list+0x124b/0x3380 [ 84.781399][ T9845] ? madvise_free_huge_pmd+0x869/0xb90 [ 84.786891][ T9845] ? can_split_huge_page+0x480/0x480 [ 84.792176][ T9845] ? pmd_val+0x7c/0xf0 [ 84.796311][ T9845] ? enabled_store+0x190/0x190 [ 84.801084][ T9845] madvise_free_huge_pmd+0x873/0xb90 [ 84.806379][ T9845] madvise_free_pte_range+0x6ff/0x2650 [ 84.811831][ T9845] ? mark_lock+0xbc/0x1220 [ 84.816279][ T9845] ? mark_held_locks+0x9f/0xe0 [ 84.822129][ T9845] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 84.828808][ T9845] __walk_page_range+0xcfb/0x2070 [ 84.833853][ T9845] ? walk_page_test+0x78/0x180 [ 84.838602][ T9845] walk_page_range+0x1bd/0x3a0 [ 84.843357][ T9845] ? __walk_page_range+0x2070/0x2070 [ 84.848737][ T9845] ? madvise_free_single_vma+0x2c1/0x550 [ 84.854382][ T9845] madvise_free_single_vma+0x384/0x550 [ 84.859835][ T9845] ? madvise_pageout+0x3b0/0x3b0 [ 84.864785][ T9845] ? lock_acquire+0x197/0x420 [ 84.869459][ T9845] ? userfaultfd_remove+0xf0/0x2b0 [ 84.874572][ T9845] ? vmacache_find+0x62/0x300 [ 84.879234][ T9845] ? find_vma+0x2b/0x170 [ 84.883478][ T9845] do_madvise+0x5ba/0x1b80 [ 84.887889][ T9845] ? lock_downgrade+0x7f0/0x7f0 [ 84.892741][ T9845] ? madvise_free_pte_range+0x2650/0x2650 [ 84.898460][ T9845] ? ktime_get+0x1f8/0x2f0 [ 84.902886][ T9845] ? __x64_sys_futex+0x376/0x4f0 [ 84.907818][ T9845] ? switch_fpu_return+0x1db/0x4b0 [ 84.912920][ T9845] ? fpregs_mark_activate+0x320/0x320 [ 84.918302][ T9845] ? __x64_sys_madvise+0xae/0x120 [ 84.923309][ T9845] __x64_sys_madvise+0xae/0x120 [ 84.928141][ T9845] ? lockdep_hardirqs_on+0x417/0x5d0 [ 84.933416][ T9845] do_syscall_64+0xf6/0x7d0 [ 84.937907][ T9845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.943777][ T9845] RIP: 0033:0x460bf7 [ 84.947654][ T9845] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 84.967246][ T9845] RSP: 002b:000000c000053e70 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 84.975658][ T9845] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 84.983641][ T9845] RDX: 0000000000000008 RSI: 000000000000a000 RDI: 000000c00029e000 [ 84.991616][ T9845] RBP: 000000c000053eb0 R08: 000000c000200000 R09: 000000c0002a8000 [ 84.999658][ T9845] R10: 00007fffffffffff R11: 0000000000000246 R12: 0000000000000032 [ 85.007632][ T9845] R13: 0000000000000000 R14: 0000000000ac76de R15: 0000000000000000 [ 85.022010][ T9845] BUG: using __this_cpu_read() in preemptible [00000000] code: syz-fuzzer/9845 [ 85.031282][ T9845] caller is __mod_memcg_state+0x27/0x1a0 [ 85.037008][ T9845] CPU: 0 PID: 9845 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 85.046460][ T9845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.057212][ T9845] Call Trace: [ 85.060531][ T9845] dump_stack+0x188/0x20d [ 85.064886][ T9845] __this_cpu_preempt_check.cold+0x84/0x90 [ 85.070710][ T9845] __mod_memcg_state+0x27/0x1a0 [ 85.075574][ T9845] split_huge_page_to_list+0x124b/0x3380 [ 85.081403][ T9845] ? madvise_free_huge_pmd+0x869/0xb90 [ 85.086885][ T9845] ? can_split_huge_page+0x480/0x480 [ 85.092259][ T9845] ? pmd_val+0x7c/0xf0 [ 85.096336][ T9845] ? enabled_store+0x190/0x190 [ 85.101114][ T9845] madvise_free_huge_pmd+0x873/0xb90 [ 85.106458][ T9845] madvise_free_pte_range+0x6ff/0x2650 [ 85.111924][ T9845] ? mark_lock+0xbc/0x1220 [ 85.116350][ T9845] ? mark_held_locks+0x9f/0xe0 [ 85.121982][ T9845] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 85.128670][ T9845] __walk_page_range+0xcfb/0x2070 [ 85.133992][ T9845] ? walk_page_test+0x78/0x180 [ 85.138761][ T9845] walk_page_range+0x1bd/0x3a0 [ 85.143528][ T9845] ? __walk_page_range+0x2070/0x2070 [ 85.148829][ T9845] ? madvise_free_single_vma+0x2c1/0x550 [ 85.154476][ T9845] madvise_free_single_vma+0x384/0x550 [ 85.159966][ T9845] ? madvise_pageout+0x3b0/0x3b0 [ 85.164912][ T9845] ? lock_acquire+0x197/0x420 [ 85.169590][ T9845] ? userfaultfd_remove+0xf0/0x2b0 [ 85.174714][ T9845] ? vmacache_find+0x62/0x300 [ 85.179390][ T9845] ? vmacache_update+0xce/0x140 [ 85.184259][ T9845] ? find_vma+0x2b/0x170 [ 85.188514][ T9845] do_madvise+0x5ba/0x1b80 [ 85.192933][ T9845] ? lock_downgrade+0x7f0/0x7f0 [ 85.197805][ T9845] ? madvise_free_pte_range+0x2650/0x2650 [ 85.203548][ T9845] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 85.209106][ T9845] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 85.215108][ T9845] ? __x64_sys_futex+0x376/0x4f0 [ 85.220321][ T9845] ? switch_fpu_return+0x1db/0x4b0 [ 85.225467][ T9845] ? fpregs_mark_activate+0x320/0x320 [ 85.230852][ T9845] ? __x64_sys_madvise+0xae/0x120 [ 85.235875][ T9845] __x64_sys_madvise+0xae/0x120 [ 85.240731][ T9845] ? lockdep_hardirqs_on+0x417/0x5d0 [ 85.246105][ T9845] do_syscall_64+0xf6/0x7d0 [ 85.250758][ T9845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.256674][ T9845] RIP: 0033:0x460bf7 [ 85.260571][ T9845] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 85.281141][ T9845] RSP: 002b:000000c000053e70 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 85.289577][ T9845] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 85.297555][ T9845] RDX: 0000000000000008 RSI: 000000000007e000 RDI: 000000c000144000 [ 85.305529][ T9845] RBP: 000000c000053eb0 R08: 000000c000000000 R09: 000000c0001c2000 [ 85.313497][ T9845] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000040 [ 85.321639][ T9845] R13: 0000000000000040 R14: 0000000000ac76de R15: 0000000000000000 [ 85.329828][ T9845] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-fuzzer/9845 [ 85.338863][ T9845] caller is __mod_memcg_state+0xca/0x1a0 [ 85.345387][ T9845] CPU: 0 PID: 9845 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 85.354935][ T9845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.365261][ T9845] Call Trace: [ 85.369357][ T9845] dump_stack+0x188/0x20d [ 85.373824][ T9845] __this_cpu_preempt_check.cold+0x84/0x90 [ 85.379635][ T9845] __mod_memcg_state+0xca/0x1a0 [ 85.384499][ T9845] split_huge_page_to_list+0x124b/0x3380 [ 85.390160][ T9845] ? madvise_free_huge_pmd+0x869/0xb90 [ 85.395634][ T9845] ? can_split_huge_page+0x480/0x480 [ 85.400941][ T9845] ? pmd_val+0x7c/0xf0 [ 85.405062][ T9845] ? enabled_store+0x190/0x190 [ 85.409849][ T9845] madvise_free_huge_pmd+0x873/0xb90 [ 85.415174][ T9845] madvise_free_pte_range+0x6ff/0x2650 [ 85.420762][ T9845] ? mark_lock+0xbc/0x1220 [ 85.425198][ T9845] ? mark_held_locks+0x9f/0xe0 [ 85.429963][ T9845] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 85.436648][ T9845] __walk_page_range+0xcfb/0x2070 [ 85.441708][ T9845] ? walk_page_test+0x78/0x180 [ 85.446650][ T9845] walk_page_range+0x1bd/0x3a0 [ 85.451418][ T9845] ? __walk_page_range+0x2070/0x2070 [ 85.456840][ T9845] ? madvise_free_single_vma+0x2c1/0x550 [ 85.462493][ T9845] madvise_free_single_vma+0x384/0x550 [ 85.467986][ T9845] ? madvise_pageout+0x3b0/0x3b0 [ 85.472936][ T9845] ? lock_acquire+0x197/0x420 [ 85.477621][ T9845] ? userfaultfd_remove+0xf0/0x2b0 [ 85.482746][ T9845] ? vmacache_find+0x62/0x300 [ 85.487424][ T9845] ? vmacache_update+0xce/0x140 [ 85.492274][ T9845] ? find_vma+0x2b/0x170 [ 85.496543][ T9845] do_madvise+0x5ba/0x1b80 [ 85.500958][ T9845] ? lock_downgrade+0x7f0/0x7f0 [ 85.505834][ T9845] ? madvise_free_pte_range+0x2650/0x2650 [ 85.511567][ T9845] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 85.517377][ T9845] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 85.523356][ T9845] ? __x64_sys_futex+0x376/0x4f0 [ 85.528323][ T9845] ? switch_fpu_return+0x1db/0x4b0 [ 85.533447][ T9845] ? fpregs_mark_activate+0x320/0x320 [ 85.538844][ T9845] ? __x64_sys_madvise+0xae/0x120 [ 85.544056][ T9845] __x64_sys_madvise+0xae/0x120 [ 85.548906][ T9845] ? lockdep_hardirqs_on+0x417/0x5d0 [ 85.554217][ T9845] do_syscall_64+0xf6/0x7d0 [ 85.558750][ T9845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.564740][ T9845] RIP: 0033:0x460bf7 [ 85.568643][ T9845] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 85.588589][ T9845] RSP: 002b:000000c000053e70 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 85.597001][ T9845] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 85.605074][ T9845] RDX: 0000000000000008 RSI: 000000000007e000 RDI: 000000c000144000 [ 85.613042][ T9845] RBP: 000000c000053eb0 R08: 000000c000000000 R09: 000000c0001c2000 [ 85.621101][ T9845] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000040 [ 85.629070][ T9845] R13: 0000000000000040 R14: 0000000000ac76de R15: 0000000000000000 [ 85.637209][ T9845] BUG: using __this_cpu_write() in preemptible [00000000] code: syz-fuzzer/9845 [ 85.646385][ T9845] caller is __mod_memcg_state+0x87/0x1a0 [ 85.652035][ T9845] CPU: 0 PID: 9845 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 85.661756][ T9845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.671836][ T9845] Call Trace: [ 85.675144][ T9845] dump_stack+0x188/0x20d [ 85.679511][ T9845] __this_cpu_preempt_check.cold+0x84/0x90 [ 85.685345][ T9845] __mod_memcg_state+0x87/0x1a0 [ 85.690221][ T9845] split_huge_page_to_list+0x124b/0x3380 [ 85.695920][ T9845] ? madvise_free_huge_pmd+0x869/0xb90 [ 85.701412][ T9845] ? can_split_huge_page+0x480/0x480 [ 85.706739][ T9845] ? pmd_val+0x7c/0xf0 [ 85.710839][ T9845] ? enabled_store+0x190/0x190 [ 85.715630][ T9845] madvise_free_huge_pmd+0x873/0xb90 [ 85.720964][ T9845] madvise_free_pte_range+0x6ff/0x2650 [ 85.726450][ T9845] ? mark_lock+0xbc/0x1220 [ 85.730904][ T9845] ? mark_held_locks+0x9f/0xe0 [ 85.735683][ T9845] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 85.742376][ T9845] __walk_page_range+0xcfb/0x2070 [ 85.747462][ T9845] ? walk_page_test+0x78/0x180 [ 85.752259][ T9845] walk_page_range+0x1bd/0x3a0 [ 85.757302][ T9845] ? __walk_page_range+0x2070/0x2070 [ 85.762616][ T9845] ? madvise_free_single_vma+0x2c1/0x550 [ 85.768288][ T9845] madvise_free_single_vma+0x384/0x550 [ 85.773758][ T9845] ? madvise_pageout+0x3b0/0x3b0 [ 85.778722][ T9845] ? lock_acquire+0x197/0x420 [ 85.783418][ T9845] ? userfaultfd_remove+0xf0/0x2b0 [ 85.788666][ T9845] ? vmacache_find+0x62/0x300 [ 85.793369][ T9845] ? vmacache_update+0xce/0x140 [ 85.798356][ T9845] ? find_vma+0x2b/0x170 [ 85.802631][ T9845] do_madvise+0x5ba/0x1b80 [ 85.807084][ T9845] ? lock_downgrade+0x7f0/0x7f0 [ 85.811982][ T9845] ? madvise_free_pte_range+0x2650/0x2650 [ 85.817739][ T9845] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 85.823297][ T9845] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 85.829283][ T9845] ? __x64_sys_futex+0x376/0x4f0 [ 85.834244][ T9845] ? switch_fpu_return+0x1db/0x4b0 [ 85.839517][ T9845] ? fpregs_mark_activate+0x320/0x320 [ 85.844911][ T9845] ? __x64_sys_madvise+0xae/0x120 [ 85.849947][ T9845] __x64_sys_madvise+0xae/0x120 [ 85.854941][ T9845] ? lockdep_hardirqs_on+0x417/0x5d0 [ 85.860443][ T9845] do_syscall_64+0xf6/0x7d0 [ 85.865174][ T9845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.871178][ T9845] RIP: 0033:0x460bf7 [ 85.875267][ T9845] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 85.897236][ T9845] RSP: 002b:000000c000053e70 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 85.905891][ T9845] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 85.913882][ T9845] RDX: 0000000000000008 RSI: 000000000007e000 RDI: 000000c000144000 [ 85.921867][ T9845] RBP: 000000c000053eb0 R08: 000000c000000000 R09: 000000c0001c2000 [ 85.929843][ T9845] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000040 [ 85.937813][ T9845] R13: 0000000000000040 R14: 0000000000ac76de R15: 0000000000000000 [ 85.990340][ T9847] BUG: using __this_cpu_read() in preemptible [00000000] code: syz-fuzzer/9847 [ 85.999777][ T9847] caller is __mod_memcg_state+0x27/0x1a0 [ 86.005504][ T9847] CPU: 0 PID: 9847 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 86.015055][ T9847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.025557][ T9847] Call Trace: [ 86.028848][ T9847] dump_stack+0x188/0x20d [ 86.033810][ T9847] __this_cpu_preempt_check.cold+0x84/0x90 [ 86.039690][ T9847] __mod_memcg_state+0x27/0x1a0 [ 86.044837][ T9847] split_huge_page_to_list+0x124b/0x3380 [ 86.050487][ T9847] ? madvise_free_huge_pmd+0x869/0xb90 [ 86.055951][ T9847] ? can_split_huge_page+0x480/0x480 [ 86.061256][ T9847] ? pmd_val+0x7c/0xf0 [ 86.065308][ T9847] ? enabled_store+0x190/0x190 [ 86.070061][ T9847] madvise_free_huge_pmd+0x873/0xb90 [ 86.076137][ T9847] madvise_free_pte_range+0x6ff/0x2650 [ 86.081765][ T9847] ? mark_lock+0xbc/0x1220 [ 86.086686][ T9847] ? mark_held_locks+0x9f/0xe0 [ 86.092385][ T9847] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 86.099039][ T9847] __walk_page_range+0xcfb/0x2070 [ 86.104081][ T9847] ? walk_page_test+0x78/0x180 [ 86.108837][ T9847] walk_page_range+0x1bd/0x3a0 [ 86.113603][ T9847] ? __walk_page_range+0x2070/0x2070 [ 86.118895][ T9847] ? madvise_free_single_vma+0x2c1/0x550 [ 86.124531][ T9847] madvise_free_single_vma+0x384/0x550 [ 86.130159][ T9847] ? madvise_pageout+0x3b0/0x3b0 [ 86.135136][ T9847] ? lock_acquire+0x197/0x420 [ 86.139800][ T9847] ? userfaultfd_remove+0xf0/0x2b0 [ 86.144932][ T9847] ? vmacache_find+0x62/0x300 [ 86.149601][ T9847] ? find_vma+0x2b/0x170 [ 86.153899][ T9847] do_madvise+0x5ba/0x1b80 [ 86.158358][ T9847] ? lock_downgrade+0x7f0/0x7f0 [ 86.163232][ T9847] ? madvise_free_pte_range+0x2650/0x2650 [ 86.168962][ T9847] ? ktime_get+0x1f8/0x2f0 [ 86.173452][ T9847] ? __x64_sys_futex+0x376/0x4f0 [ 86.178402][ T9847] ? switch_fpu_return+0x1db/0x4b0 [ 86.183535][ T9847] ? fpregs_mark_activate+0x320/0x320 [ 86.189049][ T9847] ? __x64_sys_madvise+0xae/0x120 [ 86.194218][ T9847] __x64_sys_madvise+0xae/0x120 [ 86.199090][ T9847] ? lockdep_hardirqs_on+0x417/0x5d0 [ 86.204381][ T9847] do_syscall_64+0xf6/0x7d0 [ 86.208924][ T9847] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.214810][ T9847] RIP: 0033:0x460bf7 [ 86.218746][ T9847] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 86.238367][ T9847] RSP: 002b:000000c00004fe70 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 86.246771][ T9847] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 86.254825][ T9847] RDX: 0000000000000008 RSI: 0000000000002000 RDI: 000000c000426000 [ 86.262800][ T9847] RBP: 000000c00004feb0 R08: 000000c000400000 R09: 000000c000428000 [ 86.270775][ T9847] R10: 00007fffffffffff R11: 0000000000000246 R12: 0000000000000033 [ 86.278790][ T9847] R13: 0000000000e8da20 R14: 0000000000000000 R15: 0000000000000000 [ 86.287068][ T9847] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-fuzzer/9847 [ 86.295976][ T9847] caller is __mod_memcg_state+0xca/0x1a0 [ 86.301612][ T9847] CPU: 0 PID: 9847 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 86.311073][ T9847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.321134][ T9847] Call Trace: [ 86.324420][ T9847] dump_stack+0x188/0x20d [ 86.329553][ T9847] __this_cpu_preempt_check.cold+0x84/0x90 [ 86.336163][ T9847] __mod_memcg_state+0xca/0x1a0 [ 86.341008][ T9847] split_huge_page_to_list+0x124b/0x3380 [ 86.346665][ T9847] ? madvise_free_huge_pmd+0x869/0xb90 [ 86.352133][ T9847] ? can_split_huge_page+0x480/0x480 [ 86.357428][ T9847] ? pmd_val+0x7c/0xf0 [ 86.361499][ T9847] ? enabled_store+0x190/0x190 [ 86.366256][ T9847] madvise_free_huge_pmd+0x873/0xb90 [ 86.371533][ T9847] madvise_free_pte_range+0x6ff/0x2650 [ 86.377065][ T9847] ? mark_lock+0xbc/0x1220 [ 86.381728][ T9847] ? mark_held_locks+0x9f/0xe0 [ 86.386481][ T9847] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 86.393136][ T9847] __walk_page_range+0xcfb/0x2070 [ 86.398182][ T9847] ? walk_page_test+0x78/0x180 [ 86.402936][ T9847] walk_page_range+0x1bd/0x3a0 [ 86.407700][ T9847] ? __walk_page_range+0x2070/0x2070 [ 86.412982][ T9847] ? madvise_free_single_vma+0x2c1/0x550 [ 86.418611][ T9847] madvise_free_single_vma+0x384/0x550 [ 86.424060][ T9847] ? madvise_pageout+0x3b0/0x3b0 [ 86.428996][ T9847] ? lock_acquire+0x197/0x420 [ 86.433827][ T9847] ? userfaultfd_remove+0xf0/0x2b0 [ 86.438929][ T9847] ? vmacache_find+0x62/0x300 [ 86.443612][ T9847] ? find_vma+0x2b/0x170 [ 86.447843][ T9847] do_madvise+0x5ba/0x1b80 [ 86.452247][ T9847] ? lock_downgrade+0x7f0/0x7f0 [ 86.457102][ T9847] ? madvise_free_pte_range+0x2650/0x2650 [ 86.462985][ T9847] ? ktime_get+0x1f8/0x2f0 [ 86.467416][ T9847] ? __x64_sys_futex+0x376/0x4f0 [ 86.472452][ T9847] ? switch_fpu_return+0x1db/0x4b0 [ 86.477583][ T9847] ? fpregs_mark_activate+0x320/0x320 [ 86.483014][ T9847] ? __x64_sys_madvise+0xae/0x120 [ 86.488026][ T9847] __x64_sys_madvise+0xae/0x120 [ 86.493111][ T9847] ? lockdep_hardirqs_on+0x417/0x5d0 [ 86.498426][ T9847] do_syscall_64+0xf6/0x7d0 [ 86.502968][ T9847] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.508902][ T9847] RIP: 0033:0x460bf7 [ 86.512785][ T9847] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 86.533460][ T9847] RSP: 002b:000000c00004fe70 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 86.541867][ T9847] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 86.549835][ T9847] RDX: 0000000000000008 RSI: 0000000000002000 RDI: 000000c000426000 [ 86.558338][ T9847] RBP: 000000c00004feb0 R08: 000000c000400000 R09: 000000c000428000 [ 86.566298][ T9847] R10: 00007fffffffffff R11: 0000000000000246 R12: 0000000000000033 [ 86.574259][ T9847] R13: 0000000000e8da20 R14: 0000000000000000 R15: 0000000000000000 [ 86.582374][ T9847] BUG: using __this_cpu_write() in preemptible [00000000] code: syz-fuzzer/9847 [ 86.591471][ T9847] caller is __mod_memcg_state+0x87/0x1a0 [ 86.597196][ T9847] CPU: 0 PID: 9847 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 86.606667][ T9847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.616717][ T9847] Call Trace: [ 86.620246][ T9847] dump_stack+0x188/0x20d [ 86.624574][ T9847] __this_cpu_preempt_check.cold+0x84/0x90 [ 86.630580][ T9847] __mod_memcg_state+0x87/0x1a0 [ 86.635910][ T9847] split_huge_page_to_list+0x124b/0x3380 [ 86.641580][ T9847] ? madvise_free_huge_pmd+0x869/0xb90 [ 86.647035][ T9847] ? can_split_huge_page+0x480/0x480 [ 86.652307][ T9847] ? pmd_val+0x7c/0xf0 [ 86.656384][ T9847] ? enabled_store+0x190/0x190 [ 86.661582][ T9847] madvise_free_huge_pmd+0x873/0xb90 [ 86.666877][ T9847] madvise_free_pte_range+0x6ff/0x2650 [ 86.672336][ T9847] ? mark_lock+0xbc/0x1220 [ 86.676741][ T9847] ? mark_held_locks+0x9f/0xe0 [ 86.681485][ T9847] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 86.688275][ T9847] __walk_page_range+0xcfb/0x2070 [ 86.693591][ T9847] ? walk_page_test+0x78/0x180 [ 86.698451][ T9847] walk_page_range+0x1bd/0x3a0 [ 86.703207][ T9847] ? __walk_page_range+0x2070/0x2070 [ 86.708493][ T9847] ? madvise_free_single_vma+0x2c1/0x550 [ 86.714128][ T9847] madvise_free_single_vma+0x384/0x550 [ 86.719571][ T9847] ? madvise_pageout+0x3b0/0x3b0 [ 86.724697][ T9847] ? lock_acquire+0x197/0x420 [ 86.729375][ T9847] ? userfaultfd_remove+0xf0/0x2b0 [ 86.734635][ T9847] ? vmacache_find+0x62/0x300 [ 86.739314][ T9847] ? find_vma+0x2b/0x170 [ 86.743634][ T9847] do_madvise+0x5ba/0x1b80 [ 86.748084][ T9847] ? lock_downgrade+0x7f0/0x7f0 [ 86.752958][ T9847] ? madvise_free_pte_range+0x2650/0x2650 [ 86.758941][ T9847] ? ktime_get+0x1f8/0x2f0 [ 86.763353][ T9847] ? __x64_sys_futex+0x376/0x4f0 [ 86.768283][ T9847] ? switch_fpu_return+0x1db/0x4b0 [ 86.773379][ T9847] ? fpregs_mark_activate+0x320/0x320 [ 86.778753][ T9847] ? __x64_sys_madvise+0xae/0x120 [ 86.783959][ T9847] __x64_sys_madvise+0xae/0x120 [ 86.789675][ T9847] ? lockdep_hardirqs_on+0x417/0x5d0 [ 86.794959][ T9847] do_syscall_64+0xf6/0x7d0 [ 86.799454][ T9847] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.805346][ T9847] RIP: 0033:0x460bf7 [ 86.809236][ T9847] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 86.828935][ T9847] RSP: 002b:000000c00004fe70 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 86.837564][ T9847] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 86.845538][ T9847] RDX: 0000000000000008 RSI: 0000000000002000 RDI: 000000c000426000 [ 86.853764][ T9847] RBP: 000000c00004feb0 R08: 000000c000400000 R09: 000000c000428000 [ 86.862356][ T9847] R10: 00007fffffffffff R11: 0000000000000246 R12: 0000000000000033 [ 86.870720][ T9847] R13: 0000000000e8da20 R14: 0000000000000000 R15: 0000000000000000 2020/03/09 19:23:09 connecting to host at 10.128.0.26:38853 2020/03/09 19:23:09 checking machine... 2020/03/09 19:23:09 checking revisions... 2020/03/09 19:23:09 testing simple program... [ 88.401005][ T9861] IPVS: ftp: loaded support on port[0] = 21 2020/03/09 19:23:10 building call list... [ 88.574257][ T23] [ 88.576753][ T23] ============================= [ 88.594271][ T23] WARNING: suspicious RCU usage [ 88.599269][ T23] 5.6.0-rc4-next-20200306-syzkaller #0 Not tainted [ 88.607666][ T23] ----------------------------- [ 88.612595][ T23] net/openvswitch/conntrack.c:1898 RCU-list traversed in non-reader section!! [ 88.633532][ T23] [ 88.633532][ T23] other info that might help us debug this: [ 88.633532][ T23] [ 88.653481][ T23] [ 88.653481][ T23] rcu_scheduler_active = 2, debug_locks = 1 [ 88.661678][ T23] 3 locks held by kworker/u4:2/23: [ 88.667300][ T23] #0: ffff8880a9771d28 ((wq_completion)netns){+.+.}, at: process_one_work+0x82a/0x1690 [ 88.677720][ T23] #1: ffffc90000e07dd0 (net_cleanup_work){+.+.}, at: process_one_work+0x85e/0x1690 [ 88.687559][ T23] #2: ffffffff8a546f88 (pernet_ops_rwsem){++++}, at: cleanup_net+0x9b/0xa50 [ 88.696472][ T23] [ 88.696472][ T23] stack backtrace: [ 88.713540][ T23] CPU: 1 PID: 23 Comm: kworker/u4:2 Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 88.723914][ T23] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.734067][ T23] Workqueue: netns cleanup_net [ 88.738830][ T23] Call Trace: [ 88.742126][ T23] dump_stack+0x188/0x20d [ 88.746482][ T23] ovs_ct_exit+0x3db/0x558 [ 88.750930][ T23] ovs_exit_net+0x1df/0xba0 [ 88.755471][ T23] ? ovs_dp_cmd_del+0x270/0x270 [ 88.760322][ T23] ? __mutex_unlock_slowpath+0xe2/0x660 [ 88.766747][ T23] ? ovs_dp_cmd_del+0x270/0x270 [ 88.771618][ T23] ops_exit_list.isra.0+0xa8/0x150 [ 88.776764][ T23] cleanup_net+0x511/0xa50 [ 88.781204][ T23] ? unregister_pernet_device+0x70/0x70 [ 88.786776][ T23] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 88.793041][ T23] process_one_work+0x94b/0x1690 [ 88.798098][ T23] ? pwq_dec_nr_in_flight+0x310/0x310 [ 88.803468][ T23] ? do_raw_spin_lock+0x129/0x2e0 [ 88.808615][ T23] worker_thread+0x96/0xe20 [ 88.813336][ T23] ? process_one_work+0x1690/0x1690 [ 88.819242][ T23] kthread+0x357/0x430 [ 88.823316][ T23] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 88.829128][ T23] ret_from_fork+0x24/0x30 [ 89.003538][ T23] tipc: TX() has been purged, node left! [ 89.045849][ T23] [ 89.048468][ T23] ============================= [ 89.053907][ T23] WARNING: suspicious RCU usage [ 89.058891][ T23] 5.6.0-rc4-next-20200306-syzkaller #0 Not tainted [ 89.066073][ T23] ----------------------------- [ 89.071396][ T23] net/ipv4/ipmr.c:1757 RCU-list traversed in non-reader section!! [ 89.079902][ T23] [ 89.079902][ T23] other info that might help us debug this: [ 89.079902][ T23] [ 89.090959][ T23] [ 89.090959][ T23] rcu_scheduler_active = 2, debug_locks = 1 [ 89.099685][ T23] 4 locks held by kworker/u4:2/23: [ 89.105631][ T23] #0: ffff8880a9771d28 ((wq_completion)netns){+.+.}, at: process_one_work+0x82a/0x1690 [ 89.116006][ T23] #1: ffffc90000e07dd0 (net_cleanup_work){+.+.}, at: process_one_work+0x85e/0x1690 [ 89.126369][ T23] #2: ffffffff8a546f88 (pernet_ops_rwsem){++++}, at: cleanup_net+0x9b/0xa50 [ 89.136105][ T23] #3: ffffffff8a552d00 (rtnl_mutex){+.+.}, at: ip6gre_exit_batch_net+0x88/0x700 [ 89.148026][ T23] [ 89.148026][ T23] stack backtrace: [ 89.154477][ T23] CPU: 1 PID: 23 Comm: kworker/u4:2 Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 89.163931][ T23] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.173991][ T23] Workqueue: netns cleanup_net [ 89.178747][ T23] Call Trace: [ 89.182056][ T23] dump_stack+0x188/0x20d [ 89.186393][ T23] ipmr_device_event+0x240/0x2b0 [ 89.191337][ T23] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 89.197235][ T23] notifier_call_chain+0xc0/0x230 [ 89.202282][ T23] call_netdevice_notifiers_info+0xb5/0x130 [ 89.208177][ T23] rollback_registered_many+0x75c/0xe70 [ 89.213815][ T23] ? netif_set_real_num_tx_queues+0x700/0x700 [ 89.220422][ T23] ? lock_downgrade+0x7f0/0x7f0 [ 89.225376][ T23] unregister_netdevice_many.part.0+0x16/0x1e0 [ 89.231905][ T23] unregister_netdevice_many+0x36/0x50 [ 89.237366][ T23] ip6gre_exit_batch_net+0x4e8/0x700 [ 89.242655][ T23] ? ip6gre_tunnel_link+0xf0/0xf0 [ 89.247852][ T23] ? rcu_read_lock_held_common+0x130/0x130 [ 89.253691][ T23] ? ip6gre_tunnel_link+0xf0/0xf0 [ 89.258733][ T23] ops_exit_list.isra.0+0x103/0x150 [ 89.263938][ T23] cleanup_net+0x511/0xa50 [ 89.268366][ T23] ? unregister_pernet_device+0x70/0x70 [ 89.273924][ T23] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 89.279916][ T23] process_one_work+0x94b/0x1690 [ 89.284891][ T23] ? pwq_dec_nr_in_flight+0x310/0x310 [ 89.290261][ T23] ? do_raw_spin_lock+0x129/0x2e0 [ 89.295328][ T23] worker_thread+0x96/0xe20 [ 89.299852][ T23] ? process_one_work+0x1690/0x1690 [ 89.305143][ T23] kthread+0x357/0x430 [ 89.309212][ T23] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 89.314936][ T23] ret_from_fork+0x24/0x30 [ 89.541917][ T9845] BUG: using __this_cpu_read() in preemptible [00000000] code: syz-fuzzer/9845 [ 89.551139][ T9845] caller is __mod_memcg_state+0x27/0x1a0 [ 89.556943][ T9845] CPU: 0 PID: 9845 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 89.566477][ T9845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.576738][ T9845] Call Trace: [ 89.580072][ T9845] dump_stack+0x188/0x20d [ 89.584408][ T9845] __this_cpu_preempt_check.cold+0x84/0x90 [ 89.590223][ T9845] __mod_memcg_state+0x27/0x1a0 [ 89.595214][ T9845] split_huge_page_to_list+0x124b/0x3380 [ 89.600851][ T9845] ? madvise_free_huge_pmd+0x869/0xb90 [ 89.606310][ T9845] ? can_split_huge_page+0x480/0x480 [ 89.611590][ T9845] ? pmd_val+0x7c/0xf0 [ 89.615651][ T9845] ? enabled_store+0x190/0x190 [ 89.620590][ T9845] madvise_free_huge_pmd+0x873/0xb90 [ 89.625865][ T9845] madvise_free_pte_range+0x6ff/0x2650 [ 89.631332][ T9845] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 89.638003][ T9845] __walk_page_range+0xcfb/0x2070 [ 89.643025][ T9845] ? walk_page_test+0x78/0x180 [ 89.647772][ T9845] walk_page_range+0x1bd/0x3a0 [ 89.652520][ T9845] ? __walk_page_range+0x2070/0x2070 [ 89.657791][ T9845] ? madvise_free_single_vma+0x2c1/0x550 [ 89.663426][ T9845] madvise_free_single_vma+0x384/0x550 [ 89.668869][ T9845] ? madvise_pageout+0x3b0/0x3b0 [ 89.673804][ T9845] ? lock_acquire+0x197/0x420 [ 89.678475][ T9845] ? userfaultfd_remove+0xf0/0x2b0 [ 89.683577][ T9845] ? vmacache_find+0x62/0x300 [ 89.688240][ T9845] ? vmacache_update+0xce/0x140 [ 89.693082][ T9845] ? find_vma+0x2b/0x170 [ 89.697315][ T9845] do_madvise+0x5ba/0x1b80 [ 89.701723][ T9845] ? unuse_pde+0x2c/0x80 [ 89.706077][ T9845] ? madvise_free_pte_range+0x2650/0x2650 [ 89.711912][ T9845] ? __x64_sys_futex+0x376/0x4f0 [ 89.716863][ T9845] ? fput_many+0x2f/0x1a0 [ 89.721188][ T9845] ? do_futex+0x1b90/0x1b90 [ 89.725685][ T9845] ? ksys_read+0x19f/0x250 [ 89.730081][ T9845] ? kernel_write+0x120/0x120 [ 89.734753][ T9845] ? __x64_sys_madvise+0xae/0x120 [ 89.740103][ T9845] __x64_sys_madvise+0xae/0x120 [ 89.744945][ T9845] ? lockdep_hardirqs_on+0x417/0x5d0 [ 89.750228][ T9845] do_syscall_64+0xf6/0x7d0 [ 89.754732][ T9845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.760736][ T9845] RIP: 0033:0x460bf7 [ 89.764719][ T9845] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 89.784320][ T9845] RSP: 002b:000000c000053c50 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 89.792728][ T9845] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 89.800772][ T9845] RDX: 0000000000000008 RSI: 0000000000200000 RDI: 000000c00053a000 [ 89.808736][ T9845] RBP: 000000c000053c90 R08: 000000c000400000 R09: 000000c00073a000 [ 89.816688][ T9845] R10: 00000000007ffe00 R11: 0000000000000246 R12: 0000000000000055 [ 89.825171][ T9845] R13: 0000000000e8da20 R14: 0000000000000000 R15: 0000000000000000 [ 89.833434][ T9845] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-fuzzer/9845 [ 89.842792][ T9845] caller is __mod_memcg_state+0xca/0x1a0 [ 89.848479][ T9845] CPU: 0 PID: 9845 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 89.858120][ T9845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.868697][ T9845] Call Trace: [ 89.871990][ T9845] dump_stack+0x188/0x20d [ 89.876494][ T9845] __this_cpu_preempt_check.cold+0x84/0x90 [ 89.882284][ T9845] __mod_memcg_state+0xca/0x1a0 [ 89.887120][ T9845] split_huge_page_to_list+0x124b/0x3380 [ 89.892761][ T9845] ? madvise_free_huge_pmd+0x869/0xb90 [ 89.898246][ T9845] ? can_split_huge_page+0x480/0x480 [ 89.903545][ T9845] ? pmd_val+0x7c/0xf0 [ 89.907610][ T9845] ? enabled_store+0x190/0x190 [ 89.912376][ T9845] madvise_free_huge_pmd+0x873/0xb90 [ 89.917816][ T9845] madvise_free_pte_range+0x6ff/0x2650 [ 89.923298][ T9845] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 89.930051][ T9845] __walk_page_range+0xcfb/0x2070 [ 89.935081][ T9845] ? walk_page_test+0x78/0x180 [ 89.939833][ T9845] walk_page_range+0x1bd/0x3a0 [ 89.944609][ T9845] ? __walk_page_range+0x2070/0x2070 [ 89.949890][ T9845] ? madvise_free_single_vma+0x2c1/0x550 [ 89.955527][ T9845] madvise_free_single_vma+0x384/0x550 [ 89.961000][ T9845] ? madvise_pageout+0x3b0/0x3b0 [ 89.965944][ T9845] ? lock_acquire+0x197/0x420 [ 89.970716][ T9845] ? userfaultfd_remove+0xf0/0x2b0 [ 89.975830][ T9845] ? vmacache_find+0x62/0x300 [ 89.980497][ T9845] ? vmacache_update+0xce/0x140 [ 89.985420][ T9845] ? find_vma+0x2b/0x170 [ 89.989659][ T9845] do_madvise+0x5ba/0x1b80 [ 89.994073][ T9845] ? unuse_pde+0x2c/0x80 [ 89.998314][ T9845] ? madvise_free_pte_range+0x2650/0x2650 [ 90.004031][ T9845] ? __x64_sys_futex+0x376/0x4f0 [ 90.008960][ T9845] ? fput_many+0x2f/0x1a0 [ 90.013269][ T9845] ? do_futex+0x1b90/0x1b90 [ 90.017749][ T9845] ? ksys_read+0x19f/0x250 [ 90.022154][ T9845] ? kernel_write+0x120/0x120 [ 90.026817][ T9845] ? __x64_sys_madvise+0xae/0x120 [ 90.031838][ T9845] __x64_sys_madvise+0xae/0x120 [ 90.036703][ T9845] ? lockdep_hardirqs_on+0x417/0x5d0 [ 90.041999][ T9845] do_syscall_64+0xf6/0x7d0 [ 90.046533][ T9845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.052422][ T9845] RIP: 0033:0x460bf7 [ 90.056311][ T9845] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 90.075936][ T9845] RSP: 002b:000000c000053c50 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 90.084437][ T9845] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 90.092505][ T9845] RDX: 0000000000000008 RSI: 0000000000200000 RDI: 000000c00053a000 [ 90.100478][ T9845] RBP: 000000c000053c90 R08: 000000c000400000 R09: 000000c00073a000 [ 90.108464][ T9845] R10: 00000000007ffe00 R11: 0000000000000246 R12: 0000000000000055 [ 90.116419][ T9845] R13: 0000000000e8da20 R14: 0000000000000000 R15: 0000000000000000 [ 90.124479][ T9845] BUG: using __this_cpu_write() in preemptible [00000000] code: syz-fuzzer/9845 [ 90.133556][ T9845] caller is __mod_memcg_state+0x87/0x1a0 [ 90.139193][ T9845] CPU: 0 PID: 9845 Comm: syz-fuzzer Not tainted 5.6.0-rc4-next-20200306-syzkaller #0 [ 90.148633][ T9845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.158776][ T9845] Call Trace: [ 90.162123][ T9845] dump_stack+0x188/0x20d [ 90.166623][ T9845] __this_cpu_preempt_check.cold+0x84/0x90 [ 90.172440][ T9845] __mod_memcg_state+0x87/0x1a0 [ 90.177320][ T9845] split_huge_page_to_list+0x124b/0x3380 [ 90.182974][ T9845] ? madvise_free_huge_pmd+0x869/0xb90 [ 90.188473][ T9845] ? can_split_huge_page+0x480/0x480 [ 90.193762][ T9845] ? pmd_val+0x7c/0xf0 [ 90.197849][ T9845] ? enabled_store+0x190/0x190 [ 90.202627][ T9845] madvise_free_huge_pmd+0x873/0xb90 [ 90.207929][ T9845] madvise_free_pte_range+0x6ff/0x2650 [ 90.213397][ T9845] ? madvise_cold_or_pageout_pte_range+0x3400/0x3400 [ 90.220080][ T9845] __walk_page_range+0xcfb/0x2070 [ 90.225120][ T9845] ? walk_page_test+0x78/0x180 [ 90.229892][ T9845] walk_page_range+0x1bd/0x3a0 [ 90.234675][ T9845] ? __walk_page_range+0x2070/0x2070 [ 90.239973][ T9845] ? madvise_free_single_vma+0x2c1/0x550 [ 90.245599][ T9845] madvise_free_single_vma+0x384/0x550 [ 90.251057][ T9845] ? madvise_pageout+0x3b0/0x3b0 [ 90.256090][ T9845] ? lock_acquire+0x197/0x420 [ 90.260763][ T9845] ? userfaultfd_remove+0xf0/0x2b0 [ 90.265864][ T9845] ? vmacache_find+0x62/0x300 [ 90.270555][ T9845] ? vmacache_update+0xce/0x140 [ 90.275430][ T9845] ? find_vma+0x2b/0x170 [ 90.279674][ T9845] do_madvise+0x5ba/0x1b80 [ 90.284083][ T9845] ? unuse_pde+0x2c/0x80 [ 90.288354][ T9845] ? madvise_free_pte_range+0x2650/0x2650 [ 90.294078][ T9845] ? __x64_sys_futex+0x376/0x4f0 [ 90.299194][ T9845] ? fput_many+0x2f/0x1a0 [ 90.303526][ T9845] ? do_futex+0x1b90/0x1b90 [ 90.308060][ T9845] ? ksys_read+0x19f/0x250 [ 90.313200][ T9845] ? kernel_write+0x120/0x120 [ 90.317889][ T9845] ? __x64_sys_madvise+0xae/0x120 [ 90.323264][ T9845] __x64_sys_madvise+0xae/0x120 [ 90.328126][ T9845] ? lockdep_hardirqs_on+0x417/0x5d0 [ 90.334185][ T9845] do_syscall_64+0xf6/0x7d0 [ 90.338683][ T9845] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 90.344575][ T9845] RIP: 0033:0x460bf7 [ 90.348455][ T9845] Code: 8b 24 24 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc 48 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 48 c7 c0 1c 00 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 [ 90.368400][ T9845] RSP: 002b:000000c000053c50 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 90.376892][ T9845] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000460bf7 [ 90.384877][ T9845] RDX: 0000000000000008 RSI: 0000000000200000 RDI: 000000c00053a000 [ 90.392840][ T9845] RBP: 000000c000053c90 R08: 000000c000400000 R09: 000000c00073a000 [ 90.400801][ T9845] R10: 00000000007ffe00 R11: 0000000000000246 R12: 0000000000000055 [ 90.409356][ T9845] R13: 0000000000e8da20 R14: 0000000000000000 R15: 0000000000000000 [ 90.946809][ T9867] can: request_module (can-proto-0) failed. executing program [ 93.181299][ T9867] can: request_module (can-proto-0) failed. [ 93.194209][ T9867] can: request_module (can-proto-0) failed.