[ 61.880901][ T21] process_one_work+0x965/0x16a0 [ 61.885842][ T21] ? lock_release+0x800/0x800 [ 61.890510][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 61.895959][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 61.900891][ T21] worker_thread+0x96/0xe10 [ 61.905401][ T21] ? process_one_work+0x16a0/0x16a0 [ 61.910679][ T21] kthread+0x388/0x470 [ 61.914743][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.920456][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.926223][ T21] ret_from_fork+0x24/0x30 [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ 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 [0[ 68.035018][ T6746] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6746 m] Started Updat[ 68.045132][ T6746] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 68.052477][ T6746] CPU: 0 PID: 6746 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 e UTMP about Sys[ 68.060808][ T6746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.072257][ T6746] Call Trace: tem Runlevel Cha[ 68.075593][ T6746] dump_stack+0x18f/0x20d nges. [ 68.081324][ T6746] debug_smp_processor_id.cold+0x88/0x9b [ 68.087578][ T6746] ext4_mb_new_blocks+0xa77/0x3b30 [ 68.092703][ T6746] ? ext4_ext_search_right+0x2ca/0xb20 [ 68.098187][ T6746] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 68.103952][ T6746] ext4_ext_map_blocks+0x2044/0x3410 [ 68.109263][ T6746] ? ext4_ext_release+0x10/0x10 [ 68.114144][ T6746] ? __down_timeout+0x2d0/0x2d0 [ 68.119042][ T6746] ? ext4_es_lookup_extent+0x41d/0xd30 [ 68.124506][ T6746] ext4_map_blocks+0x4cb/0x1640 [ 68.129474][ T6746] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 68.134802][ T6746] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 68.140351][ T6746] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 68.146341][ T6746] ? prandom_u32_state+0xe/0x170 [ 68.151529][ T6746] ? __brelse+0x84/0xa0 [ 68.155685][ T6746] ? __ext4_new_inode+0x144/0x57c0 [ 68.160781][ T6746] ext4_getblk+0xad/0x520 [ 68.165100][ T6746] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 68.170832][ T6746] ? ext4_free_inode+0x17e0/0x17e0 [ 68.175953][ T6746] ext4_bread+0x7c/0x380 [ 68.180576][ T6746] ? ext4_getblk+0x520/0x520 [ 68.185150][ T6746] ? dqget+0xff0/0xff0 [ 68.189317][ T6746] ext4_append+0x153/0x360 [ 68.193811][ T6746] ext4_mkdir+0x5e0/0xdf0 [ 68.198266][ T6746] ? ext4_rmdir+0xde0/0xde0 [ 68.202797][ T6746] vfs_mkdir+0x419/0x690 [ 68.207029][ T6746] do_mkdirat+0x21e/0x280 [ 68.211345][ T6746] ? __ia32_sys_mknod+0xb0/0xb0 [ 68.216183][ T6746] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 68.222303][ T6746] ? do_syscall_64+0x21/0x7d0 [ 68.227001][ T6746] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 68.233238][ T6746] do_syscall_64+0xf6/0x7d0 [ 68.237748][ T6746] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 68.243637][ T6746] RIP: 0033:0x7efd92f63687 [ 68.248085][ T6746] Code: Bad RIP value. [ 68.252356][ T6746] RSP: 002b:00007ffce142b2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 68.261012][ T6746] RAX: ffffffffffffffda RBX: 000055eab8c8a985 RCX: 00007efd92f63687 [ 68.268996][ T6746] RDX: 00007ffce142b1b0 RSI: 00000000000001ed RDI: 000055eab8c8a985 [ 68.277033][ T6746] RBP: 00007efd92f63680 R08: 0000000000000100 R09: 0000000000000000 [ 68.285139][ T6746] R10: 000055eab8c8a980 R11: 0000000000000246 R12: 00000000000001ed [ 68.293485][ T6746] R13: 00007ffce142b470 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.129' (ECDSA) to the list of known hosts. 2020/06/10 17:49:49 fuzzer started 2020/06/10 17:49:50 connecting to host at 10.128.0.26:39443 2020/06/10 17:49:50 checking machine... 2020/06/10 17:49:50 checking revisions... 2020/06/10 17:49:50 testing simple program... syzkaller login: [ 71.138907][ T6810] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6810 [ 71.148047][ T6810] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 71.154432][ T6810] CPU: 1 PID: 6810 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 71.162452][ T6810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.172524][ T6810] Call Trace: [ 71.175827][ T6810] dump_stack+0x18f/0x20d [ 71.180229][ T6810] debug_smp_processor_id.cold+0x88/0x9b [ 71.185889][ T6810] ext4_mb_new_blocks+0xa77/0x3b30 [ 71.191173][ T6810] ? ext4_ext_search_right+0x2ca/0xb20 [ 71.196772][ T6810] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 71.206592][ T6810] ext4_ext_map_blocks+0x2044/0x3410 [ 71.212275][ T6810] ? ext4_ext_release+0x10/0x10 [ 71.217398][ T6810] ? __down_timeout+0x2d0/0x2d0 [ 71.222794][ T6810] ? ext4_es_lookup_extent+0x41d/0xd30 [ 71.228401][ T6810] ext4_map_blocks+0x4cb/0x1640 [ 71.233524][ T6810] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 71.238718][ T6810] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 71.244261][ T6810] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 71.250246][ T6810] ? prandom_u32_state+0xe/0x170 [ 71.255292][ T6810] ? __brelse+0x84/0xa0 [ 71.259450][ T6810] ? __ext4_new_inode+0x144/0x57c0 [ 71.264574][ T6810] ext4_getblk+0xad/0x520 [ 71.268926][ T6810] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 71.274636][ T6810] ? ext4_free_inode+0x17e0/0x17e0 [ 71.279734][ T6810] ext4_bread+0x7c/0x380 [ 71.283964][ T6810] ? ext4_getblk+0x520/0x520 [ 71.288539][ T6810] ? dqget+0xff0/0xff0 [ 71.292629][ T6810] ext4_append+0x153/0x360 [ 71.297043][ T6810] ext4_mkdir+0x5e0/0xdf0 [ 71.301363][ T6810] ? ext4_rmdir+0xde0/0xde0 [ 71.305888][ T6810] vfs_mkdir+0x419/0x690 [ 71.310154][ T6810] do_mkdirat+0x21e/0x280 [ 71.314472][ T6810] ? __ia32_sys_mknod+0xb0/0xb0 [ 71.319328][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 71.325299][ T6810] ? do_syscall_64+0x21/0x7d0 [ 71.329964][ T6810] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 71.336087][ T6810] do_syscall_64+0xf6/0x7d0 [ 71.340610][ T6810] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 71.346513][ T6810] RIP: 0033:0x4b02a0 [ 71.350518][ T6810] Code: Bad RIP value. [ 71.354641][ T6810] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 71.363072][ T6810] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 71.371987][ T6810] RDX: 00000000000001c0 RSI: 000000c0000f2ea0 RDI: ffffffffffffff9c [ 71.379961][ T6810] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 71.387936][ T6810] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 71.395924][ T6810] R13: 0000000000000076 R14: 0000000000000075 R15: 0000000000000100 [ 71.422538][ T29] audit: type=1400 audit(1591811390.598:8): avc: denied { execmem } for pid=6827 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 71.423449][ T6827] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6827 [ 71.452583][ T6827] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 71.458589][ T6827] CPU: 0 PID: 6827 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 71.466843][ T6827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.476989][ T6827] Call Trace: [ 71.480274][ T6827] dump_stack+0x18f/0x20d [ 71.484596][ T6827] debug_smp_processor_id.cold+0x88/0x9b [ 71.490232][ T6827] ext4_mb_new_blocks+0xa77/0x3b30 [ 71.495356][ T6827] ? ext4_ext_search_right+0x2ca/0xb20 [ 71.500832][ T6827] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 71.506565][ T6827] ext4_ext_map_blocks+0x2044/0x3410 [ 71.511845][ T6827] ? ext4_ext_release+0x10/0x10 [ 71.516717][ T6827] ? __down_timeout+0x2d0/0x2d0 [ 71.521556][ T6827] ? ext4_es_lookup_extent+0x41d/0xd30 [ 71.527028][ T6827] ext4_map_blocks+0x4cb/0x1640 [ 71.531873][ T6827] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 71.537081][ T6827] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 71.542643][ T6827] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 71.548631][ T6827] ? prandom_u32_state+0xe/0x170 [ 71.553558][ T6827] ? __brelse+0x84/0xa0 [ 71.557715][ T6827] ? __ext4_new_inode+0x144/0x57c0 [ 71.562843][ T6827] ext4_getblk+0xad/0x520 [ 71.567209][ T6827] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 71.572935][ T6827] ? ext4_free_inode+0x17e0/0x17e0 [ 71.578039][ T6827] ext4_bread+0x7c/0x380 [ 71.582288][ T6827] ? ext4_getblk+0x520/0x520 [ 71.586925][ T6827] ? dqget+0xff0/0xff0 [ 71.591008][ T6827] ? security_transition_sid+0x123/0x190 [ 71.596658][ T6827] ? security_transition_sid+0xed/0x190 [ 71.602189][ T6827] ext4_append+0x153/0x360 [ 71.606594][ T6827] ext4_mkdir+0x5e0/0xdf0 [ 71.610912][ T6827] ? ext4_rmdir+0xde0/0xde0 [ 71.615421][ T6827] vfs_mkdir+0x419/0x690 [ 71.619782][ T6827] do_mkdirat+0x21e/0x280 [ 71.624142][ T6827] ? __ia32_sys_mknod+0xb0/0xb0 [ 71.629012][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 71.635124][ T6827] ? do_syscall_64+0x21/0x7d0 [ 71.639996][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 71.646455][ T6827] do_syscall_64+0xf6/0x7d0 [ 71.650963][ T6827] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 71.656840][ T6827] RIP: 0033:0x45bee7 [ 71.660723][ T6827] Code: Bad RIP value. [ 71.664789][ T6827] RSP: 002b:00007ffce682c1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 71.673245][ T6827] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 71.681675][ T6827] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffce682c3a0 [ 71.690784][ T6827] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003940 [ 71.698916][ T6827] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 71.706905][ T6827] R13: 00007ffce682c3a0 R14: 8421084210842109 R15: 00007ffce682c3ac [ 71.812058][ T6828] IPVS: ftp: loaded support on port[0] = 21 [ 71.850394][ T6828] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6828 [ 71.859924][ T6828] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 71.865968][ T6828] CPU: 1 PID: 6828 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 71.874210][ T6828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.884499][ T6828] Call Trace: [ 71.887878][ T6828] dump_stack+0x18f/0x20d [ 71.892346][ T6828] debug_smp_processor_id.cold+0x88/0x9b [ 71.898307][ T6828] ext4_mb_new_blocks+0xa77/0x3b30 [ 71.903460][ T6828] ? ext4_ext_search_right+0x2ca/0xb20 [ 71.908908][ T6828] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 71.914616][ T6828] ext4_ext_map_blocks+0x2044/0x3410 [ 71.919894][ T6828] ? ext4_ext_release+0x10/0x10 [ 71.924847][ T6828] ? __down_timeout+0x2d0/0x2d0 [ 71.929734][ T6828] ? ext4_es_lookup_extent+0x41d/0xd30 [ 71.935191][ T6828] ext4_map_blocks+0x4cb/0x1640 [ 71.940031][ T6828] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 71.945213][ T6828] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 71.950744][ T6828] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 71.956721][ T6828] ? prandom_u32_state+0xe/0x170 [ 71.961646][ T6828] ? __brelse+0x84/0xa0 [ 71.965808][ T6828] ? __ext4_new_inode+0x144/0x57c0 [ 71.970915][ T6828] ext4_getblk+0xad/0x520 [ 71.975238][ T6828] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 71.980986][ T6828] ? ext4_free_inode+0x17e0/0x17e0 [ 71.986328][ T6828] ext4_bread+0x7c/0x380 [ 71.990601][ T6828] ? ext4_getblk+0x520/0x520 [ 71.995219][ T6828] ? dqget+0xff0/0xff0 [ 71.999277][ T6828] ? security_transition_sid+0x123/0x190 [ 72.004900][ T6828] ? security_transition_sid+0xed/0x190 [ 72.010528][ T6828] ext4_append+0x153/0x360 [ 72.014951][ T6828] ext4_mkdir+0x5e0/0xdf0 [ 72.019543][ T6828] ? ext4_rmdir+0xde0/0xde0 [ 72.024074][ T6828] vfs_mkdir+0x419/0x690 [ 72.028309][ T6828] do_mkdirat+0x21e/0x280 [ 72.032741][ T6828] ? __ia32_sys_mknod+0xb0/0xb0 [ 72.037733][ T6828] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.043869][ T6828] ? do_syscall_64+0x21/0x7d0 [ 72.048539][ T6828] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.054549][ T6828] do_syscall_64+0xf6/0x7d0 [ 72.059188][ T6828] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 72.065346][ T6828] RIP: 0033:0x45bee7 [ 72.069744][ T6828] Code: Bad RIP value. [ 72.073819][ T6828] RSP: 002b:00007ffce682c0b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 72.082289][ T6828] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 72.090275][ T6828] RDX: 00007ffce682c103 RSI: 00000000000001ff RDI: 00007ffce682c100 [ 72.098252][ T6828] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 72.106306][ T6828] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 72.114288][ T6828] R13: 00007ffce682c0f0 R14: 0000000000000000 R15: 00007ffce682c100 [ 72.168771][ T6828] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6828 [ 72.178403][ T6828] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 72.184533][ T6828] CPU: 1 PID: 6828 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 72.192791][ T6828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.202858][ T6828] Call Trace: [ 72.206172][ T6828] dump_stack+0x18f/0x20d [ 72.210519][ T6828] debug_smp_processor_id.cold+0x88/0x9b [ 72.216165][ T6828] ext4_mb_new_blocks+0xa77/0x3b30 [ 72.221313][ T6828] ? ext4_ext_search_right+0x2ca/0xb20 [ 72.226814][ T6828] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 72.232570][ T6828] ext4_ext_map_blocks+0x2044/0x3410 [ 72.237895][ T6828] ? ext4_ext_release+0x10/0x10 [ 72.242798][ T6828] ? __down_timeout+0x2d0/0x2d0 [ 72.247691][ T6828] ? ext4_es_lookup_extent+0x41d/0xd30 [ 72.253291][ T6828] ext4_map_blocks+0x4cb/0x1640 [ 72.258268][ T6828] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 72.264056][ T6828] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 72.269746][ T6828] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 72.275907][ T6828] ? prandom_u32_state+0xe/0x170 [ 72.280953][ T6828] ? __brelse+0x84/0xa0 [ 72.285106][ T6828] ? __ext4_new_inode+0x144/0x57c0 [ 72.290366][ T6828] ext4_getblk+0xad/0x520 [ 72.294702][ T6828] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 72.300426][ T6828] ? ext4_free_inode+0x17e0/0x17e0 [ 72.305524][ T6828] ext4_bread+0x7c/0x380 [ 72.309793][ T6828] ? ext4_getblk+0x520/0x520 [ 72.314387][ T6828] ? dqget+0xff0/0xff0 [ 72.318447][ T6828] ? security_transition_sid+0x123/0x190 [ 72.324066][ T6828] ? security_transition_sid+0xed/0x190 [ 72.329626][ T6828] ext4_append+0x153/0x360 [ 72.334050][ T6828] ext4_mkdir+0x5e0/0xdf0 [ 72.338390][ T6828] ? ext4_rmdir+0xde0/0xde0 [ 72.342900][ T6828] vfs_mkdir+0x419/0x690 [ 72.347134][ T6828] do_mkdirat+0x21e/0x280 [ 72.351467][ T6828] ? __ia32_sys_mknod+0xb0/0xb0 [ 72.356308][ T6828] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.362288][ T6828] ? do_syscall_64+0x21/0x7d0 [ 72.366964][ T6828] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.372937][ T6828] do_syscall_64+0xf6/0x7d0 [ 72.377462][ T6828] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 72.383543][ T6828] RIP: 0033:0x45bee7 [ 72.387436][ T6828] Code: Bad RIP value. [ 72.391617][ T6828] RSP: 002b:00007ffce682c0b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 72.400026][ T6828] RAX: ffffffffffffffda RBX: 00000000000119dc RCX: 000000000045bee7 [ 72.407986][ T6828] RDX: 00007ffce682c103 RSI: 00000000000001ff RDI: 00007ffce682c100 2020/06/10 17:49:51 building call list... [ 72.415982][ T6828] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 72.423977][ T6828] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 72.431959][ T6828] R13: 00007ffce682c0f0 R14: 00000000000119d0 R15: 00007ffce682c100 [ 72.693345][ T21] tipc: TX() has been purged, node left! executing program [ 74.231578][ T1161] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1161 [ 74.240963][ T1161] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 74.246966][ T1161] CPU: 0 PID: 1161 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 74.254853][ T1161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.264908][ T1161] Call Trace: [ 74.268213][ T1161] dump_stack+0x18f/0x20d [ 74.272549][ T1161] debug_smp_processor_id.cold+0x88/0x9b [ 74.278189][ T1161] ext4_mb_new_blocks+0xa77/0x3b30 [ 74.283303][ T1161] ? __kmalloc+0x62f/0x7a0 [ 74.287734][ T1161] ? ext4_ext_search_right+0x2ca/0xb20 [ 74.293195][ T1161] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 74.298924][ T1161] ext4_ext_map_blocks+0x2044/0x3410 [ 74.304221][ T1161] ? ext4_ext_release+0x10/0x10 [ 74.309091][ T1161] ? __down_timeout+0x2d0/0x2d0 [ 74.313944][ T1161] ? ext4_es_lookup_extent+0x41d/0xd30 [ 74.319441][ T1161] ext4_map_blocks+0x4cb/0x1640 [ 74.324305][ T1161] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 74.329506][ T1161] ? debug_smp_processor_id+0x2f/0x185 [ 74.334976][ T1161] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.340613][ T1161] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.346599][ T1161] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 74.352068][ T1161] ext4_writepages+0x1ab7/0x3400 [ 74.357019][ T1161] ? mark_lock+0x50/0xdd0 [ 74.361366][ T1161] ? __ext4_mark_inode_dirty+0x950/0x950 [ 74.367031][ T1161] ? __ext4_mark_inode_dirty+0x950/0x950 [ 74.372665][ T1161] ? do_writepages+0xfa/0x2a0 [ 74.377343][ T1161] do_writepages+0xfa/0x2a0 [ 74.381858][ T1161] ? page_writeback_cpu_online+0x10/0x10 [ 74.387500][ T1161] ? do_raw_spin_lock+0x129/0x2e0 [ 74.392529][ T1161] ? do_raw_spin_unlock+0x171/0x260 [ 74.397740][ T1161] ? _raw_spin_unlock+0x24/0x40 [ 74.402622][ T1161] __filemap_fdatawrite_range+0x2aa/0x390 [ 74.408348][ T1161] ? collapse_file+0x3575/0x4300 [ 74.413291][ T1161] ? delete_from_page_cache_batch+0xec0/0xec0 [ 74.419377][ T1161] ? _raw_spin_unlock_irq+0x1f/0x80 [ 74.424588][ T1161] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.430604][ T1161] collapse_file+0x357f/0x4300 [ 74.435389][ T1161] ? collapse_huge_page+0x4370/0x4370 [ 74.440759][ T1161] ? khugepaged+0x24fa/0x3f80 [ 74.445486][ T1161] ? dsa_switch_rcv+0x3e8/0x770 [ 74.450375][ T1161] khugepaged+0x3049/0x3f80 [ 74.454898][ T1161] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.460524][ T1161] ? lock_downgrade+0x840/0x840 [ 74.465371][ T1161] ? finish_wait+0x260/0x260 [ 74.469962][ T1161] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 74.475780][ T1161] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.481781][ T1161] ? __kthread_parkme+0x13f/0x1e0 [ 74.486813][ T1161] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.492436][ T1161] kthread+0x388/0x470 [ 74.496494][ T1161] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.502201][ T1161] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.507917][ T1161] ret_from_fork+0x24/0x30 [ 74.628181][ T1161] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1161 [ 74.637860][ T1161] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 74.643871][ T1161] CPU: 0 PID: 1161 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 74.651766][ T1161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.661835][ T1161] Call Trace: [ 74.665126][ T1161] dump_stack+0x18f/0x20d [ 74.669448][ T1161] debug_smp_processor_id.cold+0x88/0x9b [ 74.675085][ T1161] ext4_mb_new_blocks+0xa77/0x3b30 [ 74.680214][ T1161] ? ext4_ext_search_right+0x2ca/0xb20 [ 74.685662][ T1161] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 74.691807][ T1161] ext4_ext_map_blocks+0x2044/0x3410 [ 74.697121][ T1161] ? ext4_ext_release+0x10/0x10 [ 74.702033][ T1161] ? __down_timeout+0x2d0/0x2d0 [ 74.703065][ T6813] can: request_module (can-proto-0) failed. [ 74.706902][ T1161] ? ext4_es_lookup_extent+0x41d/0xd30 [ 74.718244][ T1161] ext4_map_blocks+0x4cb/0x1640 [ 74.723232][ T1161] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 74.728462][ T1161] ? debug_smp_processor_id+0x2f/0x185 [ 74.734055][ T1161] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.739593][ T1161] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.745610][ T1161] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 74.751069][ T1161] ext4_writepages+0x1ab7/0x3400 [ 74.755998][ T1161] ? mark_lock+0x50/0xdd0 [ 74.760326][ T1161] ? __ext4_mark_inode_dirty+0x950/0x950 [ 74.765961][ T1161] ? __ext4_mark_inode_dirty+0x950/0x950 [ 74.771579][ T1161] ? do_writepages+0xfa/0x2a0 [ 74.776260][ T1161] do_writepages+0xfa/0x2a0 [ 74.780752][ T1161] ? page_writeback_cpu_online+0x10/0x10 [ 74.786493][ T1161] ? do_raw_spin_lock+0x129/0x2e0 [ 74.791639][ T1161] ? do_raw_spin_unlock+0x171/0x260 [ 74.796951][ T1161] ? _raw_spin_unlock+0x24/0x40 [ 74.801954][ T1161] __filemap_fdatawrite_range+0x2aa/0x390 [ 74.807674][ T1161] ? collapse_file+0x3575/0x4300 [ 74.812613][ T1161] ? delete_from_page_cache_batch+0xec0/0xec0 [ 74.818683][ T1161] ? _raw_spin_unlock_irq+0x1f/0x80 [ 74.823875][ T1161] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.829848][ T1161] collapse_file+0x357f/0x4300 [ 74.834615][ T1161] ? collapse_huge_page+0x4370/0x4370 [ 74.839973][ T1161] ? khugepaged+0x24fa/0x3f80 [ 74.844668][ T1161] ? dsa_switch_rcv+0x3e8/0x770 [ 74.849517][ T1161] khugepaged+0x3049/0x3f80 [ 74.854036][ T1161] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.859669][ T1161] ? lock_downgrade+0x840/0x840 [ 74.864509][ T1161] ? finish_wait+0x260/0x260 [ 74.869098][ T1161] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 74.874895][ T1161] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.880884][ T1161] ? __kthread_parkme+0x13f/0x1e0 [ 74.885919][ T1161] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.891541][ T1161] kthread+0x388/0x470 [ 74.896300][ T1161] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.902000][ T1161] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.907729][ T1161] ret_from_fork+0x24/0x30 [ 74.948070][ T1161] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1161 [ 74.957387][ T1161] caller is ext4_mb_new_blocks+0xa77/0x3b30 [ 74.963381][ T1161] CPU: 0 PID: 1161 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 74.971279][ T1161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.981345][ T1161] Call Trace: [ 74.984650][ T1161] dump_stack+0x18f/0x20d [ 74.988990][ T1161] debug_smp_processor_id.cold+0x88/0x9b [ 74.994632][ T1161] ext4_mb_new_blocks+0xa77/0x3b30 [ 74.999766][ T1161] ? ext4_ext_search_right+0x2ca/0xb20 [ 75.005236][ T1161] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 75.011404][ T1161] ext4_ext_map_blocks+0x2044/0x3410 [ 75.016710][ T1161] ? ext4_ext_release+0x10/0x10 [ 75.021585][ T1161] ? __down_timeout+0x2d0/0x2d0 [ 75.026464][ T1161] ? ext4_es_lookup_extent+0x41d/0xd30 [ 75.031962][ T1161] ext4_map_blocks+0x4cb/0x1640 [ 75.036835][ T1161] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 75.042035][ T1161] ? debug_smp_processor_id+0x2f/0x185 [ 75.047505][ T1161] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 75.053053][ T1161] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 75.059039][ T1161] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 75.064577][ T1161] ext4_writepages+0x1ab7/0x3400 [ 75.069527][ T1161] ? mark_lock+0x50/0xdd0 [ 75.073887][ T1161] ? __ext4_mark_inode_dirty+0x950/0x950 [ 75.079521][ T1161] ? __ext4_mark_inode_dirty+0x950/0x950 [ 75.085157][ T1161] ? do_writepages+0xfa/0x2a0 [ 75.089831][ T1161] do_writepages+0xfa/0x2a0 [ 75.094327][ T1161] ? page_writeback_cpu_online+0x10/0x10 [ 75.100362][ T1161] ? do_raw_spin_lock+0x129/0x2e0 [ 75.105441][ T1161] ? do_raw_spin_unlock+0x171/0x260 [ 75.110648][ T1161] ? _raw_spin_unlock+0x24/0x40 [ 75.115641][ T1161] __filemap_fdatawrite_range+0x2aa/0x390 [ 75.121361][ T1161] ? collapse_file+0x3575/0x4300 [ 75.126599][ T1161] ? delete_from_page_cache_batch+0xec0/0xec0 [ 75.132727][ T1161] ? _raw_spin_unlock_irq+0x1f/0x80 [ 75.137926][ T1161] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 75.143928][ T1161] collapse_file+0x357f/0x4300 [ 75.148690][ T1161] ? collapse_huge_page+0x4370/0x4370 [ 75.154067][ T1161] ? khugepaged+0x24fa/0x3f80 [ 75.158741][ T1161] ? dsa_switch_rcv+0x3e8/0x770 [ 75.163578][ T1161] khugepaged+0x3049/0x3f80 [ 75.168096][ T1161] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 75.173891][ T1161] ? lock_downgrade+0x840/0x840 [ 75.178729][ T1161] ? finish_wait+0x260/0x260 [ 75.183323][ T1161] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 75.189108][ T1161] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 75.195102][ T1161] ? __kthread_parkme+0x13f/0x1e0 [ 75.200137][ T1161] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 75.205943][ T1161] kthread+0x388/0x470 [ 75.210062][ T1161] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 75.215808][ T1161] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 75.221522][ T1161] ret_from_fork+0x24/0x30 [ 75.411637][ T6813] can: request_module (can-proto-0) failed. [ 75.425298][ T6813] can: request_module (can-proto-0) failed. [ 75.475863][ T29] audit: type=1400 audit(1591811394.658:9): avc: denied { create } for pid=6810 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1