[ 62.764485][ T117] process_one_work+0x965/0x1690 [ 62.769441][ T117] ? lock_release+0x800/0x800 [ 62.774128][ T117] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.779509][ T117] ? rwlock_bug.part.0+0x90/0x90 [ 62.784548][ T117] worker_thread+0x96/0xe10 [ 62.789065][ T117] ? process_one_work+0x1690/0x1690 [ 62.794269][ T117] kthread+0x3af/0x4a0 [ 62.798370][ T117] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.804092][ T117] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.809819][ T117] 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 ] Started Updat[ 68.570389][ T6731] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6731 e UTMP about Sys[ 68.580468][ T6731] caller is ext4_mb_new_blocks+0xa54/0x3af0 tem Runlevel Cha[ 68.588129][ T6731] CPU: 0 PID: 6731 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 68.597876][ T6731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.607994][ T6731] Call Trace: [ 68.611423][ T6731] dump_stack+0x18f/0x20d [ 68.615807][ T6731] debug_smp_processor_id.cold+0x88/0x9b [ 68.621586][ T6731] ext4_mb_new_blocks+0xa54/0x3af0 [ 68.626728][ T6731] ? ext4_ext_search_right+0x2ca/0xb20 [ 68.632202][ T6731] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 68.637977][ T6731] ext4_ext_map_blocks+0x201b/0x33e0 nges. [ 68.643350][ T6731] ? ext4_ext_release+0x10/0x10 [ 68.648811][ T6731] ? __down_timeout+0x2d0/0x2d0 [ 68.653662][ T6731] ? ext4_es_lookup_extent+0x41d/0xd10 [ 68.659275][ T6731] ext4_map_blocks+0x4cb/0x1640 [ 68.664133][ T6731] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 68.669346][ T6731] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 68.675164][ T6731] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 68.681290][ T6731] ? prandom_u32_state+0xe/0x170 [ 68.686383][ T6731] ? __brelse+0x84/0xa0 [ 68.690541][ T6731] ? __ext4_new_inode+0x144/0x57a0 [ 68.695643][ T6731] ext4_getblk+0xad/0x520 [ 68.700055][ T6731] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 68.705849][ T6731] ? ext4_free_inode+0x17e0/0x17e0 [ 68.711543][ T6731] ext4_bread+0x7c/0x380 [ 68.715867][ T6731] ? ext4_getblk+0x520/0x520 [ 68.720452][ T6731] ? dqget+0x1020/0x1020 [ 68.724732][ T6731] ext4_append+0x153/0x360 [ 68.729168][ T6731] ext4_mkdir+0x5e0/0xdf0 [ 68.733515][ T6731] ? ext4_rmdir+0xde0/0xde0 [ 68.738110][ T6731] vfs_mkdir+0x419/0x690 [ 68.742344][ T6731] do_mkdirat+0x21e/0x280 [ 68.746753][ T6731] ? __ia32_sys_mknod+0xb0/0xb0 [ 68.751660][ T6731] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 68.757720][ T6731] ? do_syscall_64+0x21/0x7d0 [ 68.762501][ T6731] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 68.768476][ T6731] do_syscall_64+0xf6/0x7d0 [ 68.773002][ T6731] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 68.778967][ T6731] RIP: 0033:0x7f83714e2687 [ 68.783406][ T6731] Code: Bad RIP value. [ 68.787689][ T6731] RSP: 002b:00007ffe5c9ba3e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 68.796120][ T6731] RAX: ffffffffffffffda RBX: 0000564cbad5d985 RCX: 00007f83714e2687 [ 68.804113][ T6731] RDX: 00007ffe5c9ba2b0 RSI: 00000000000001ed RDI: 0000564cbad5d985 [ 68.812076][ T6731] RBP: 00007f83714e2680 R08: 0000000000000100 R09: 0000000000000000 [ 68.820188][ T6731] R10: 0000564cbad5d980 R11: 0000000000000246 R12: 00000000000001ed [ 68.828389][ T6731] R13: 00007ffe5c9ba570 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts. 2020/06/11 20:31:44 fuzzer started 2020/06/11 20:31:44 connecting to host at 10.128.0.26:43657 2020/06/11 20:31:44 checking machine... 2020/06/11 20:31:44 checking revisions... 2020/06/11 20:31:44 testing simple program... syzkaller login: [ 72.048560][ T6801] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6801 [ 72.057643][ T6801] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 72.063545][ T6801] CPU: 0 PID: 6801 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 72.071408][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.081454][ T6801] Call Trace: [ 72.084734][ T6801] dump_stack+0x18f/0x20d [ 72.089058][ T6801] debug_smp_processor_id.cold+0x88/0x9b [ 72.094668][ T6801] ext4_mb_new_blocks+0xa54/0x3af0 [ 72.099764][ T6801] ? ext4_ext_search_right+0x2ca/0xb20 [ 72.105199][ T6801] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 72.110897][ T6801] ext4_ext_map_blocks+0x201b/0x33e0 [ 72.116172][ T6801] ? ext4_ext_release+0x10/0x10 [ 72.121024][ T6801] ? __down_timeout+0x2d0/0x2d0 [ 72.125864][ T6801] ? ext4_es_lookup_extent+0x41d/0xd10 [ 72.131352][ T6801] ext4_map_blocks+0x4cb/0x1640 [ 72.136207][ T6801] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 72.141398][ T6801] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 72.146941][ T6801] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 72.152934][ T6801] ? prandom_u32_state+0xe/0x170 [ 72.157855][ T6801] ? __brelse+0x84/0xa0 [ 72.162040][ T6801] ? __ext4_new_inode+0x144/0x57a0 [ 72.167135][ T6801] ext4_getblk+0xad/0x520 [ 72.171537][ T6801] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 72.177358][ T6801] ? ext4_free_inode+0x17e0/0x17e0 [ 72.182457][ T6801] ext4_bread+0x7c/0x380 [ 72.186692][ T6801] ? ext4_getblk+0x520/0x520 [ 72.191289][ T6801] ? dqget+0x1020/0x1020 [ 72.196323][ T6801] ext4_append+0x153/0x360 [ 72.200764][ T6801] ext4_mkdir+0x5e0/0xdf0 [ 72.205074][ T6801] ? ext4_rmdir+0xde0/0xde0 [ 72.209562][ T6801] vfs_mkdir+0x419/0x690 [ 72.213788][ T6801] do_mkdirat+0x21e/0x280 [ 72.218094][ T6801] ? __ia32_sys_mknod+0xb0/0xb0 [ 72.222934][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.228890][ T6801] ? do_syscall_64+0x21/0x7d0 [ 72.233652][ T6801] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.239613][ T6801] do_syscall_64+0xf6/0x7d0 [ 72.244095][ T6801] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 72.249963][ T6801] RIP: 0033:0x4b02a0 [ 72.253829][ T6801] Code: Bad RIP value. [ 72.257866][ T6801] RSP: 002b:000000c0000cd4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 72.266247][ T6801] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 72.274206][ T6801] RDX: 00000000000001c0 RSI: 000000c000026760 RDI: ffffffffffffff9c [ 72.282166][ T6801] RBP: 000000c0000cd510 R08: 0000000000000000 R09: 0000000000000000 [ 72.290121][ T6801] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 72.298096][ T6801] R13: 000000000000003c R14: 000000000000003b R15: 0000000000000100 [ 72.325676][ T28] audit: type=1400 audit(1591907505.412:8): avc: denied { execmem } for pid=6818 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 72.326436][ T6818] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6818 [ 72.355712][ T6818] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 72.361688][ T6818] CPU: 1 PID: 6818 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 72.369915][ T6818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.379947][ T6818] Call Trace: [ 72.383217][ T6818] dump_stack+0x18f/0x20d [ 72.387527][ T6818] debug_smp_processor_id.cold+0x88/0x9b [ 72.393139][ T6818] ext4_mb_new_blocks+0xa54/0x3af0 [ 72.398233][ T6818] ? ext4_ext_search_right+0x2ca/0xb20 [ 72.403666][ T6818] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 72.409398][ T6818] ext4_ext_map_blocks+0x201b/0x33e0 [ 72.414682][ T6818] ? ext4_ext_release+0x10/0x10 [ 72.419517][ T6818] ? __down_timeout+0x2d0/0x2d0 [ 72.424342][ T6818] ? ext4_es_lookup_extent+0x41d/0xd10 [ 72.430138][ T6818] ext4_map_blocks+0x4cb/0x1640 [ 72.434969][ T6818] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 72.440149][ T6818] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 72.445670][ T6818] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 72.451625][ T6818] ? prandom_u32_state+0xe/0x170 [ 72.456548][ T6818] ? __brelse+0x84/0xa0 [ 72.460688][ T6818] ? __ext4_new_inode+0x144/0x57a0 [ 72.465797][ T6818] ext4_getblk+0xad/0x520 [ 72.470106][ T6818] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 72.475825][ T6818] ? ext4_free_inode+0x17e0/0x17e0 [ 72.482997][ T6818] ext4_bread+0x7c/0x380 [ 72.487257][ T6818] ? ext4_getblk+0x520/0x520 [ 72.491822][ T6818] ? dqget+0x1020/0x1020 [ 72.496057][ T6818] ? security_transition_sid+0x123/0x190 [ 72.501685][ T6818] ? security_transition_sid+0xed/0x190 [ 72.507228][ T6818] ext4_append+0x153/0x360 [ 72.511644][ T6818] ext4_mkdir+0x5e0/0xdf0 [ 72.515953][ T6818] ? ext4_rmdir+0xde0/0xde0 [ 72.520446][ T6818] vfs_mkdir+0x419/0x690 [ 72.524668][ T6818] do_mkdirat+0x21e/0x280 [ 72.528979][ T6818] ? __ia32_sys_mknod+0xb0/0xb0 [ 72.533807][ T6818] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.539769][ T6818] ? do_syscall_64+0x21/0x7d0 [ 72.544425][ T6818] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.550387][ T6818] do_syscall_64+0xf6/0x7d0 [ 72.554884][ T6818] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 72.560769][ T6818] RIP: 0033:0x45bee7 [ 72.564634][ T6818] Code: Bad RIP value. [ 72.568686][ T6818] RSP: 002b:00007fff2902f4e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 72.577092][ T6818] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 72.585074][ T6818] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007fff2902f6c0 [ 72.593057][ T6818] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003700 [ 72.601031][ T6818] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 72.608988][ T6818] R13: 00007fff2902f6c0 R14: 8421084210842109 R15: 00007fff2902f6cc [ 72.693903][ T6819] IPVS: ftp: loaded support on port[0] = 21 [ 72.732712][ T6819] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6819 [ 72.742202][ T6819] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 72.748309][ T6819] CPU: 0 PID: 6819 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 72.756566][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.766625][ T6819] Call Trace: [ 72.769897][ T6819] dump_stack+0x18f/0x20d [ 72.774219][ T6819] debug_smp_processor_id.cold+0x88/0x9b [ 72.779830][ T6819] ext4_mb_new_blocks+0xa54/0x3af0 [ 72.784946][ T6819] ? ext4_ext_search_right+0x2ca/0xb20 [ 72.790383][ T6819] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 72.796086][ T6819] ext4_ext_map_blocks+0x201b/0x33e0 [ 72.801353][ T6819] ? ext4_ext_release+0x10/0x10 [ 72.806236][ T6819] ? __down_timeout+0x2d0/0x2d0 [ 72.811088][ T6819] ? ext4_es_lookup_extent+0x41d/0xd10 [ 72.816748][ T6819] ext4_map_blocks+0x4cb/0x1640 [ 72.821586][ T6819] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 72.826765][ T6819] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 72.832310][ T6819] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 72.838269][ T6819] ? prandom_u32_state+0xe/0x170 [ 72.843186][ T6819] ? __brelse+0x84/0xa0 [ 72.847338][ T6819] ? __ext4_new_inode+0x144/0x57a0 [ 72.852617][ T6819] ext4_getblk+0xad/0x520 [ 72.856943][ T6819] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 72.862642][ T6819] ? ext4_free_inode+0x17e0/0x17e0 [ 72.868524][ T6819] ext4_bread+0x7c/0x380 [ 72.872742][ T6819] ? ext4_getblk+0x520/0x520 [ 72.877309][ T6819] ? dqget+0x1020/0x1020 [ 72.881528][ T6819] ? security_transition_sid+0x123/0x190 [ 72.887135][ T6819] ? security_transition_sid+0xed/0x190 [ 72.892659][ T6819] ext4_append+0x153/0x360 [ 72.897055][ T6819] ext4_mkdir+0x5e0/0xdf0 [ 72.901364][ T6819] ? ext4_rmdir+0xde0/0xde0 [ 72.905850][ T6819] vfs_mkdir+0x419/0x690 [ 72.910070][ T6819] do_mkdirat+0x21e/0x280 [ 72.914376][ T6819] ? __ia32_sys_mknod+0xb0/0xb0 [ 72.919202][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.925158][ T6819] ? do_syscall_64+0x21/0x7d0 [ 72.929818][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.935781][ T6819] do_syscall_64+0xf6/0x7d0 [ 72.940265][ T6819] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 72.946148][ T6819] RIP: 0033:0x45bee7 [ 72.950018][ T6819] Code: Bad RIP value. [ 72.954055][ T6819] RSP: 002b:00007fff2902f3d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 72.962449][ T6819] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 72.970411][ T6819] RDX: 00007fff2902f423 RSI: 00000000000001ff RDI: 00007fff2902f420 [ 72.978375][ T6819] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 72.986321][ T6819] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 72.994275][ T6819] R13: 00007fff2902f410 R14: 0000000000000000 R15: 00007fff2902f420 [ 73.044357][ T6819] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6819 [ 73.054015][ T6819] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 73.060000][ T6819] CPU: 1 PID: 6819 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 73.068239][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.078430][ T6819] Call Trace: [ 73.081730][ T6819] dump_stack+0x18f/0x20d [ 73.086075][ T6819] debug_smp_processor_id.cold+0x88/0x9b [ 73.091714][ T6819] ext4_mb_new_blocks+0xa54/0x3af0 [ 73.096858][ T6819] ? ext4_ext_search_right+0x2ca/0xb20 [ 73.102414][ T6819] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 73.108153][ T6819] ext4_ext_map_blocks+0x201b/0x33e0 [ 73.113462][ T6819] ? ext4_ext_release+0x10/0x10 [ 73.118350][ T6819] ? __down_timeout+0x2d0/0x2d0 [ 73.123207][ T6819] ? ext4_es_lookup_extent+0x41d/0xd10 [ 73.128655][ T6819] ext4_map_blocks+0x4cb/0x1640 [ 73.133708][ T6819] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 73.138894][ T6819] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 73.144420][ T6819] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 73.150430][ T6819] ? prandom_u32_state+0xe/0x170 [ 73.155382][ T6819] ? __brelse+0x84/0xa0 [ 73.159534][ T6819] ? __ext4_new_inode+0x144/0x57a0 [ 73.164652][ T6819] ext4_getblk+0xad/0x520 [ 73.168989][ T6819] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 73.174812][ T6819] ? ext4_free_inode+0x17e0/0x17e0 [ 73.179922][ T6819] ext4_bread+0x7c/0x380 [ 73.184144][ T6819] ? ext4_getblk+0x520/0x520 [ 73.188731][ T6819] ? dqget+0x1020/0x1020 [ 73.193148][ T6819] ? security_transition_sid+0x123/0x190 [ 73.198776][ T6819] ? security_transition_sid+0xed/0x190 [ 73.204306][ T6819] ext4_append+0x153/0x360 [ 73.208719][ T6819] ext4_mkdir+0x5e0/0xdf0 [ 73.213032][ T6819] ? ext4_rmdir+0xde0/0xde0 [ 73.217523][ T6819] vfs_mkdir+0x419/0x690 [ 73.221781][ T6819] do_mkdirat+0x21e/0x280 [ 73.226090][ T6819] ? __ia32_sys_mknod+0xb0/0xb0 [ 73.230929][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 73.236903][ T6819] ? do_syscall_64+0x21/0x7d0 2020/06/11 20:31:46 building call list... [ 73.241568][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 73.247535][ T6819] do_syscall_64+0xf6/0x7d0 [ 73.252019][ T6819] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 73.257985][ T6819] RIP: 0033:0x45bee7 [ 73.261877][ T6819] Code: Bad RIP value. [ 73.265921][ T6819] RSP: 002b:00007fff2902f3d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 73.274343][ T6819] RAX: ffffffffffffffda RBX: 0000000000011d50 RCX: 000000000045bee7 [ 73.282320][ T6819] RDX: 00007fff2902f423 RSI: 00000000000001ff RDI: 00007fff2902f420 [ 73.290284][ T6819] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 73.298243][ T6819] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 73.306221][ T6819] R13: 00007fff2902f410 R14: 0000000000011d41 R15: 00007fff2902f420 [ 73.546541][ T25] tipc: TX() has been purged, node left! [ 73.844921][ T1158] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1158 [ 73.854240][ T1158] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 73.860230][ T1158] CPU: 0 PID: 1158 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 73.868126][ T1158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.878169][ T1158] Call Trace: [ 73.881461][ T1158] dump_stack+0x18f/0x20d [ 73.885807][ T1158] debug_smp_processor_id.cold+0x88/0x9b [ 73.891459][ T1158] ext4_mb_new_blocks+0xa54/0x3af0 [ 73.896584][ T1158] ? ext4_find_extent+0x81a/0xad0 [ 73.901633][ T1158] ? ext4_ext_search_right+0x2ca/0xb20 [ 73.907126][ T1158] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 73.912947][ T1158] ext4_ext_map_blocks+0x201b/0x33e0 [ 73.918366][ T1158] ? ext4_ext_release+0x10/0x10 [ 73.923227][ T1158] ? __down_timeout+0x2d0/0x2d0 [ 73.928159][ T1158] ? ext4_es_lookup_extent+0x41d/0xd10 [ 73.933620][ T1158] ext4_map_blocks+0x4cb/0x1640 [ 73.938460][ T1158] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 73.943703][ T1158] ? debug_smp_processor_id+0x2f/0x185 [ 73.949205][ T1158] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 73.954747][ T1158] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 73.960715][ T1158] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 73.966178][ T1158] ext4_writepages+0x1a7b/0x33c0 [ 73.971137][ T1158] ? mark_lock+0x20/0xdd0 [ 73.975487][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 73.981142][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 73.986767][ T1158] ? do_writepages+0xfa/0x2a0 [ 73.991452][ T1158] do_writepages+0xfa/0x2a0 [ 73.995949][ T1158] ? page_writeback_cpu_online+0x10/0x10 [ 74.001572][ T1158] ? do_raw_spin_lock+0x120/0x2d0 [ 74.006588][ T1158] ? do_raw_spin_unlock+0x171/0x260 [ 74.011785][ T1158] ? _raw_spin_unlock+0x24/0x40 [ 74.016639][ T1158] __filemap_fdatawrite_range+0x2aa/0x390 [ 74.022356][ T1158] ? collapse_file+0x3588/0x4310 [ 74.027291][ T1158] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 74.033376][ T1158] ? _raw_spin_unlock_irq+0x1f/0x80 [ 74.038574][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.045080][ T1158] collapse_file+0x3592/0x4310 [ 74.049858][ T1158] ? collapse_huge_page+0x4350/0x4350 [ 74.055231][ T1158] ? khugepaged+0x24fa/0x3f60 [ 74.059901][ T1158] ? xas_find+0x31a/0x880 [ 74.064503][ T1158] khugepaged+0x3032/0x3f60 [ 74.069029][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.074646][ T1158] ? lock_downgrade+0x840/0x840 [ 74.079493][ T1158] ? finish_wait+0x260/0x260 [ 74.084292][ T1158] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 74.090233][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.096221][ T1158] ? __kthread_parkme+0x13f/0x1e0 [ 74.101386][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.107026][ T1158] kthread+0x3af/0x4a0 [ 74.111086][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.116878][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.122592][ T1158] ret_from_fork+0x24/0x30 [ 74.309432][ T1158] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1158 [ 74.318569][ T1158] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 74.324476][ T1158] CPU: 0 PID: 1158 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 74.332360][ T1158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.342405][ T1158] Call Trace: [ 74.345698][ T1158] dump_stack+0x18f/0x20d [ 74.350145][ T1158] debug_smp_processor_id.cold+0x88/0x9b [ 74.355776][ T1158] ext4_mb_new_blocks+0xa54/0x3af0 [ 74.360895][ T1158] ? ext4_ext_search_right+0x2ca/0xb20 [ 74.366354][ T1158] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 74.372513][ T1158] ext4_ext_map_blocks+0x201b/0x33e0 [ 74.377808][ T1158] ? ext4_ext_release+0x10/0x10 [ 74.382670][ T1158] ? __down_timeout+0x2d0/0x2d0 [ 74.387513][ T1158] ? ext4_es_lookup_extent+0x41d/0xd10 [ 74.392971][ T1158] ext4_map_blocks+0x4cb/0x1640 [ 74.397827][ T1158] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 74.403019][ T1158] ? debug_smp_processor_id+0x2f/0x185 [ 74.408479][ T1158] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.414020][ T1158] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.419992][ T1158] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 74.425450][ T1158] ext4_writepages+0x1a7b/0x33c0 [ 74.430385][ T1158] ? mark_lock+0x20/0xdd0 [ 74.434727][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.440390][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.446032][ T1158] ? do_writepages+0xfa/0x2a0 [ 74.450713][ T1158] do_writepages+0xfa/0x2a0 [ 74.455226][ T1158] ? page_writeback_cpu_online+0x10/0x10 [ 74.460855][ T1158] ? do_raw_spin_lock+0x120/0x2d0 [ 74.465874][ T1158] ? do_raw_spin_unlock+0x171/0x260 [ 74.471067][ T1158] ? _raw_spin_unlock+0x24/0x40 [ 74.475919][ T1158] __filemap_fdatawrite_range+0x2aa/0x390 [ 74.481724][ T1158] ? collapse_file+0x3588/0x4310 [ 74.486659][ T1158] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 74.492814][ T1158] ? _raw_spin_unlock_irq+0x1f/0x80 [ 74.498008][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.503988][ T1158] collapse_file+0x3592/0x4310 [ 74.508857][ T1158] ? collapse_huge_page+0x4350/0x4350 [ 74.514225][ T1158] ? khugepaged+0x24fa/0x3f60 [ 74.518913][ T1158] ? xas_find+0x31a/0x880 [ 74.523253][ T1158] khugepaged+0x3032/0x3f60 [ 74.527784][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.533452][ T1158] ? lock_downgrade+0x840/0x840 [ 74.538300][ T1158] ? finish_wait+0x260/0x260 [ 74.542887][ T1158] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 74.548689][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.554673][ T1158] ? __kthread_parkme+0x13f/0x1e0 [ 74.559694][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.565339][ T1158] kthread+0x3af/0x4a0 [ 74.569405][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.575134][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.580851][ T1158] ret_from_fork+0x24/0x30 [ 74.666722][ T1158] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1158 [ 74.675809][ T1158] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 74.681844][ T1158] CPU: 0 PID: 1158 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 74.689734][ T1158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.699782][ T1158] Call Trace: [ 74.703072][ T1158] dump_stack+0x18f/0x20d [ 74.707408][ T1158] debug_smp_processor_id.cold+0x88/0x9b [ 74.713044][ T1158] ext4_mb_new_blocks+0xa54/0x3af0 [ 74.718251][ T1158] ? ext4_ext_search_right+0x2ca/0xb20 [ 74.723713][ T1158] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 74.729883][ T1158] ext4_ext_map_blocks+0x201b/0x33e0 [ 74.735174][ T1158] ? ext4_ext_release+0x10/0x10 [ 74.740036][ T1158] ? __down_timeout+0x2d0/0x2d0 [ 74.744897][ T1158] ? ext4_es_lookup_extent+0x41d/0xd10 [ 74.750373][ T1158] ext4_map_blocks+0x4cb/0x1640 [ 74.755264][ T1158] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 74.760507][ T1158] ? debug_smp_processor_id+0x2f/0x185 [ 74.766006][ T1158] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.771573][ T1158] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.777601][ T1158] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 74.783093][ T1158] ext4_writepages+0x1a7b/0x33c0 [ 74.788049][ T1158] ? mark_lock+0x20/0xdd0 [ 74.792388][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.798176][ T1158] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.803816][ T1158] ? do_writepages+0xfa/0x2a0 [ 74.808486][ T1158] do_writepages+0xfa/0x2a0 [ 74.812984][ T1158] ? page_writeback_cpu_online+0x10/0x10 [ 74.818620][ T1158] ? do_raw_spin_lock+0x120/0x2d0 [ 74.823644][ T1158] ? do_raw_spin_unlock+0x171/0x260 [ 74.828845][ T1158] ? _raw_spin_unlock+0x24/0x40 [ 74.833696][ T1158] __filemap_fdatawrite_range+0x2aa/0x390 [ 74.839407][ T1158] ? collapse_file+0x3588/0x4310 [ 74.844339][ T1158] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 74.850424][ T1158] ? _raw_spin_unlock_irq+0x1f/0x80 [ 74.855609][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.861574][ T1158] collapse_file+0x3592/0x4310 [ 74.866346][ T1158] ? collapse_huge_page+0x4350/0x4350 [ 74.871732][ T1158] ? khugepaged+0x24fa/0x3f60 [ 74.876407][ T1158] ? xas_find+0x31a/0x880 [ 74.880734][ T1158] khugepaged+0x3032/0x3f60 [ 74.885258][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.890902][ T1158] ? lock_downgrade+0x840/0x840 [ 74.895760][ T1158] ? finish_wait+0x260/0x260 [ 74.900355][ T1158] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 74.906183][ T1158] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.912194][ T1158] ? __kthread_parkme+0x13f/0x1e0 executing program [ 74.917214][ T1158] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.922832][ T1158] kthread+0x3af/0x4a0 [ 74.926905][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.932632][ T1158] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.938523][ T1158] ret_from_fork+0x24/0x30 [ 75.723971][ T6845] can: request_module (can-proto-0) failed. [ 76.494446][ T6845] can: request_module (can-proto-0) failed. [ 76.506979][ T6845] can: request_module (can-proto-0) failed. [ 76.554531][ T28] audit: type=1400 audit(1591907509.643:9): avc: denied { create } for pid=6801 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1