[ 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 Update UTMP about Sy[ 68.460066][ T6749] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6749 stem Runlevel Ch[ 68.470322][ T6749] caller is ext4_mb_new_blocks+0xa54/0x3af0 anges. [ 68.477646][ T6749] CPU: 0 PID: 6749 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 68.486579][ T6749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.496650][ T6749] Call Trace: [ 68.499962][ T6749] dump_stack+0x18f/0x20d [ 68.504571][ T6749] debug_smp_processor_id.cold+0x88/0x9b [ 68.510213][ T6749] ext4_mb_new_blocks+0xa54/0x3af0 [ 68.515347][ T6749] ? ext4_ext_search_right+0x2ca/0xb20 [ 68.520791][ T6749] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 68.526582][ T6749] ext4_ext_map_blocks+0x201b/0x33e0 [ 68.531987][ T6749] ? ext4_ext_release+0x10/0x10 [ 68.536854][ T6749] ? __down_timeout+0x2d0/0x2d0 [ 68.541685][ T6749] ? ext4_es_lookup_extent+0x41d/0xd10 [ 68.547128][ T6749] ext4_map_blocks+0x4cb/0x1640 [ 68.551961][ T6749] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 68.557325][ T6749] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 68.562853][ T6749] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 68.568813][ T6749] ? prandom_u32_state+0xe/0x170 [ 68.573747][ T6749] ? __brelse+0x84/0xa0 [ 68.577887][ T6749] ? __ext4_new_inode+0x144/0x57a0 [ 68.582996][ T6749] ext4_getblk+0xad/0x520 [ 68.587331][ T6749] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 68.593143][ T6749] ? ext4_free_inode+0x17e0/0x17e0 [ 68.598321][ T6749] ext4_bread+0x7c/0x380 [ 68.602550][ T6749] ? ext4_getblk+0x520/0x520 [ 68.607125][ T6749] ? dqget+0x1020/0x1020 [ 68.611374][ T6749] ext4_append+0x153/0x360 [ 68.615774][ T6749] ext4_mkdir+0x5e0/0xdf0 [ 68.620088][ T6749] ? ext4_rmdir+0xde0/0xde0 [ 68.624578][ T6749] vfs_mkdir+0x419/0x690 [ 68.628803][ T6749] do_mkdirat+0x21e/0x280 [ 68.633117][ T6749] ? __ia32_sys_mknod+0xb0/0xb0 [ 68.637954][ T6749] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 68.643946][ T6749] ? do_syscall_64+0x21/0x7d0 [ 68.648604][ T6749] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 68.654653][ T6749] do_syscall_64+0xf6/0x7d0 [ 68.659679][ T6749] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 68.665637][ T6749] RIP: 0033:0x7f0f8cef5687 [ 68.670025][ T6749] Code: Bad RIP value. [ 68.674069][ T6749] RSP: 002b:00007fff8fea8538 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 68.682472][ T6749] RAX: ffffffffffffffda RBX: 000055d494ad2985 RCX: 00007f0f8cef5687 [ 68.690524][ T6749] RDX: 00007fff8fea8400 RSI: 00000000000001ed RDI: 000055d494ad2985 [ 68.698477][ T6749] RBP: 00007f0f8cef5680 R08: 0000000000000100 R09: 0000000000000000 [ 68.707140][ T6749] R10: 000055d494ad2980 R11: 0000000000000246 R12: 00000000000001ed [ 68.715103][ T6749] R13: 00007fff8fea86c0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.33' (ECDSA) to the list of known hosts. 2020/06/11 23:36:46 fuzzer started 2020/06/11 23:36:47 connecting to host at 10.128.0.26:36365 2020/06/11 23:36:47 checking machine... 2020/06/11 23:36:47 checking revisions... 2020/06/11 23:36:47 testing simple program... syzkaller login: [ 71.525814][ T6819] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6819 [ 71.535269][ T6819] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 71.541281][ T6819] CPU: 1 PID: 6819 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 71.549156][ T6819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.559443][ T6819] Call Trace: [ 71.562722][ T6819] dump_stack+0x18f/0x20d [ 71.567034][ T6819] debug_smp_processor_id.cold+0x88/0x9b [ 71.572661][ T6819] ext4_mb_new_blocks+0xa54/0x3af0 [ 71.577759][ T6819] ? ext4_ext_search_right+0x2ca/0xb20 [ 71.583202][ T6819] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 71.588926][ T6819] ext4_ext_map_blocks+0x201b/0x33e0 [ 71.595364][ T6819] ? ext4_ext_release+0x10/0x10 [ 71.600219][ T6819] ? __down_timeout+0x2d0/0x2d0 [ 71.605046][ T6819] ? ext4_es_lookup_extent+0x41d/0xd10 [ 71.610577][ T6819] ext4_map_blocks+0x4cb/0x1640 [ 71.615414][ T6819] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 71.620590][ T6819] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 71.626115][ T6819] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 71.632174][ T6819] ? prandom_u32_state+0xe/0x170 [ 71.637091][ T6819] ? __brelse+0x84/0xa0 [ 71.641258][ T6819] ? __ext4_new_inode+0x144/0x57a0 [ 71.646358][ T6819] ext4_getblk+0xad/0x520 [ 71.650679][ T6819] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 71.656423][ T6819] ? ext4_free_inode+0x17e0/0x17e0 [ 71.661689][ T6819] ext4_bread+0x7c/0x380 [ 71.665920][ T6819] ? ext4_getblk+0x520/0x520 [ 71.670486][ T6819] ? dqget+0x1020/0x1020 [ 71.674758][ T6819] ext4_append+0x153/0x360 [ 71.679164][ T6819] ext4_mkdir+0x5e0/0xdf0 [ 71.683648][ T6819] ? ext4_rmdir+0xde0/0xde0 [ 71.688140][ T6819] vfs_mkdir+0x419/0x690 [ 71.692393][ T6819] do_mkdirat+0x21e/0x280 [ 71.696702][ T6819] ? __ia32_sys_mknod+0xb0/0xb0 [ 71.701533][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 71.707498][ T6819] ? do_syscall_64+0x21/0x7d0 [ 71.712167][ T6819] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 71.718215][ T6819] do_syscall_64+0xf6/0x7d0 [ 71.722798][ T6819] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 71.728671][ T6819] RIP: 0033:0x4b02a0 [ 71.732572][ T6819] Code: Bad RIP value. [ 71.736611][ T6819] RSP: 002b:000000c00004f4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 71.744994][ T6819] RAX: ffffffffffffffda RBX: 000000c00002e500 RCX: 00000000004b02a0 [ 71.752949][ T6819] RDX: 00000000000001c0 RSI: 000000c0002f0620 RDI: ffffffffffffff9c [ 71.760897][ T6819] RBP: 000000c00004f510 R08: 0000000000000000 R09: 0000000000000000 [ 71.768845][ T6819] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 71.776793][ T6819] R13: 0000000000000032 R14: 0000000000000031 R15: 0000000000000100 [ 71.795127][ T28] audit: type=1400 audit(1591918607.677:8): avc: denied { execmem } for pid=6837 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 71.795978][ T6837] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6837 [ 71.825176][ T6837] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 71.831245][ T6837] CPU: 0 PID: 6837 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 71.839480][ T6837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.849513][ T6837] Call Trace: [ 71.852792][ T6837] dump_stack+0x18f/0x20d [ 71.857113][ T6837] debug_smp_processor_id.cold+0x88/0x9b [ 71.862721][ T6837] ext4_mb_new_blocks+0xa54/0x3af0 [ 71.867824][ T6837] ? ext4_ext_search_right+0x2ca/0xb20 [ 71.873283][ T6837] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 71.878994][ T6837] ext4_ext_map_blocks+0x201b/0x33e0 [ 71.884273][ T6837] ? ext4_ext_release+0x10/0x10 [ 71.889220][ T6837] ? __down_timeout+0x2d0/0x2d0 [ 71.894056][ T6837] ? ext4_es_lookup_extent+0x41d/0xd10 [ 71.899508][ T6837] ext4_map_blocks+0x4cb/0x1640 [ 71.904357][ T6837] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 71.909535][ T6837] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 71.915068][ T6837] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 71.921038][ T6837] ? prandom_u32_state+0xe/0x170 [ 71.925962][ T6837] ? __brelse+0x84/0xa0 [ 71.930094][ T6837] ? __ext4_new_inode+0x144/0x57a0 [ 71.935196][ T6837] ext4_getblk+0xad/0x520 [ 71.939544][ T6837] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 71.945244][ T6837] ? ext4_free_inode+0x17e0/0x17e0 [ 71.950336][ T6837] ext4_bread+0x7c/0x380 [ 71.954555][ T6837] ? ext4_getblk+0x520/0x520 [ 71.959121][ T6837] ? dqget+0x1020/0x1020 [ 71.963341][ T6837] ? security_transition_sid+0x123/0x190 [ 71.968963][ T6837] ? security_transition_sid+0xed/0x190 [ 71.974501][ T6837] ext4_append+0x153/0x360 [ 71.978909][ T6837] ext4_mkdir+0x5e0/0xdf0 [ 71.983249][ T6837] ? ext4_rmdir+0xde0/0xde0 [ 71.987747][ T6837] vfs_mkdir+0x419/0x690 [ 71.991988][ T6837] do_mkdirat+0x21e/0x280 [ 71.996387][ T6837] ? __ia32_sys_mknod+0xb0/0xb0 [ 72.001237][ T6837] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.007207][ T6837] ? do_syscall_64+0x21/0x7d0 [ 72.011864][ T6837] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.017835][ T6837] do_syscall_64+0xf6/0x7d0 [ 72.022319][ T6837] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 72.028886][ T6837] RIP: 0033:0x45bee7 [ 72.032751][ T6837] Code: Bad RIP value. [ 72.036804][ T6837] RSP: 002b:00007ffeb6b816d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 72.045205][ T6837] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 72.053155][ T6837] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffeb6b818b0 [ 72.061107][ T6837] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000003b80 [ 72.069072][ T6837] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 72.077025][ T6837] R13: 00007ffeb6b818b0 R14: 8421084210842109 R15: 00007ffeb6b818bc [ 72.168406][ T6838] IPVS: ftp: loaded support on port[0] = 21 [ 72.209336][ T6838] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6838 [ 72.218911][ T6838] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 72.224853][ T6838] CPU: 0 PID: 6838 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 72.233067][ T6838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.243148][ T6838] Call Trace: [ 72.246701][ T6838] dump_stack+0x18f/0x20d [ 72.251022][ T6838] debug_smp_processor_id.cold+0x88/0x9b [ 72.256658][ T6838] ext4_mb_new_blocks+0xa54/0x3af0 [ 72.262279][ T6838] ? ext4_ext_search_right+0x2ca/0xb20 [ 72.267733][ T6838] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 72.273436][ T6838] ext4_ext_map_blocks+0x201b/0x33e0 [ 72.278748][ T6838] ? ext4_ext_release+0x10/0x10 [ 72.283671][ T6838] ? __down_timeout+0x2d0/0x2d0 [ 72.288513][ T6838] ? ext4_es_lookup_extent+0x41d/0xd10 [ 72.293952][ T6838] ext4_map_blocks+0x4cb/0x1640 [ 72.298787][ T6838] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 72.303987][ T6838] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 72.309526][ T6838] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 72.315485][ T6838] ? prandom_u32_state+0xe/0x170 [ 72.320400][ T6838] ? __brelse+0x84/0xa0 [ 72.324533][ T6838] ? __ext4_new_inode+0x144/0x57a0 [ 72.329626][ T6838] ext4_getblk+0xad/0x520 [ 72.333949][ T6838] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 72.340715][ T6838] ? ext4_free_inode+0x17e0/0x17e0 [ 72.345811][ T6838] ext4_bread+0x7c/0x380 [ 72.350032][ T6838] ? ext4_getblk+0x520/0x520 [ 72.354598][ T6838] ? dqget+0x1020/0x1020 [ 72.359340][ T6838] ? security_transition_sid+0x123/0x190 [ 72.364951][ T6838] ? security_transition_sid+0xed/0x190 [ 72.370474][ T6838] ext4_append+0x153/0x360 [ 72.374873][ T6838] ext4_mkdir+0x5e0/0xdf0 [ 72.379182][ T6838] ? ext4_rmdir+0xde0/0xde0 [ 72.383669][ T6838] vfs_mkdir+0x419/0x690 [ 72.387889][ T6838] do_mkdirat+0x21e/0x280 [ 72.392198][ T6838] ? __ia32_sys_mknod+0xb0/0xb0 [ 72.397027][ T6838] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.403128][ T6838] ? do_syscall_64+0x21/0x7d0 [ 72.409358][ T6838] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.415411][ T6838] do_syscall_64+0xf6/0x7d0 [ 72.419912][ T6838] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 72.425781][ T6838] RIP: 0033:0x45bee7 [ 72.429647][ T6838] Code: Bad RIP value. [ 72.433708][ T6838] RSP: 002b:00007ffeb6b815c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 72.442106][ T6838] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 72.450083][ T6838] RDX: 00007ffeb6b81613 RSI: 00000000000001ff RDI: 00007ffeb6b81610 [ 72.458033][ T6838] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 72.467376][ T6838] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 72.475339][ T6838] R13: 00007ffeb6b81600 R14: 0000000000000000 R15: 00007ffeb6b81610 [ 72.528543][ T6838] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6838 [ 72.539062][ T6838] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 72.546170][ T6838] CPU: 1 PID: 6838 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 72.554417][ T6838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.564477][ T6838] Call Trace: [ 72.567778][ T6838] dump_stack+0x18f/0x20d [ 72.572123][ T6838] debug_smp_processor_id.cold+0x88/0x9b [ 72.577768][ T6838] ext4_mb_new_blocks+0xa54/0x3af0 [ 72.582911][ T6838] ? ext4_ext_search_right+0x2ca/0xb20 [ 72.588391][ T6838] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 72.594134][ T6838] ext4_ext_map_blocks+0x201b/0x33e0 [ 72.599442][ T6838] ? ext4_ext_release+0x10/0x10 [ 72.604324][ T6838] ? __down_timeout+0x2d0/0x2d0 [ 72.609266][ T6838] ? ext4_es_lookup_extent+0x41d/0xd10 [ 72.614726][ T6838] ext4_map_blocks+0x4cb/0x1640 [ 72.619562][ T6838] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 72.624739][ T6838] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 72.630263][ T6838] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 72.636223][ T6838] ? prandom_u32_state+0xe/0x170 [ 72.641139][ T6838] ? __brelse+0x84/0xa0 [ 72.645273][ T6838] ? __ext4_new_inode+0x144/0x57a0 [ 72.650380][ T6838] ext4_getblk+0xad/0x520 [ 72.654689][ T6838] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 72.660387][ T6838] ? ext4_free_inode+0x17e0/0x17e0 [ 72.665488][ T6838] ext4_bread+0x7c/0x380 [ 72.669708][ T6838] ? ext4_getblk+0x520/0x520 [ 72.674286][ T6838] ? dqget+0x1020/0x1020 [ 72.678530][ T6838] ? security_transition_sid+0x123/0x190 [ 72.684151][ T6838] ? security_transition_sid+0xed/0x190 [ 72.689695][ T6838] ext4_append+0x153/0x360 [ 72.694093][ T6838] ext4_mkdir+0x5e0/0xdf0 [ 72.698403][ T6838] ? ext4_rmdir+0xde0/0xde0 [ 72.702905][ T6838] vfs_mkdir+0x419/0x690 [ 72.707130][ T6838] do_mkdirat+0x21e/0x280 [ 72.711449][ T6838] ? __ia32_sys_mknod+0xb0/0xb0 [ 72.716277][ T6838] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.722236][ T6838] ? do_syscall_64+0x21/0x7d0 [ 72.726902][ T6838] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 72.732861][ T6838] do_syscall_64+0xf6/0x7d0 [ 72.737345][ T6838] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 72.743219][ T6838] RIP: 0033:0x45bee7 [ 72.747098][ T6838] Code: Bad RIP value. [ 72.751139][ T6838] RSP: 002b:00007ffeb6b815c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 72.759538][ T6838] RAX: ffffffffffffffda RBX: 0000000000011b1d RCX: 000000000045bee7 [ 72.767488][ T6838] RDX: 00007ffeb6b81613 RSI: 00000000000001ff RDI: 00007ffeb6b81610 2020/06/11 23:36:48 building call list... [ 72.775457][ T6838] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 72.783960][ T6838] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 72.791973][ T6838] R13: 00007ffeb6b81600 R14: 0000000000011b06 R15: 00007ffeb6b81610 [ 73.089443][ T7] tipc: TX() has been purged, node left! [ 73.973187][ T1157] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1157 [ 73.982619][ T1157] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 73.988622][ T1157] CPU: 1 PID: 1157 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 73.996513][ T1157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.006576][ T1157] Call Trace: [ 74.009869][ T1157] dump_stack+0x18f/0x20d [ 74.014211][ T1157] debug_smp_processor_id.cold+0x88/0x9b [ 74.019839][ T1157] ext4_mb_new_blocks+0xa54/0x3af0 [ 74.024971][ T1157] ? ext4_find_extent+0x81a/0xad0 [ 74.029998][ T1157] ? ext4_ext_search_right+0x2ca/0xb20 [ 74.035454][ T1157] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 74.041182][ T1157] ext4_ext_map_blocks+0x201b/0x33e0 [ 74.046485][ T1157] ? ext4_ext_release+0x10/0x10 [ 74.051350][ T1157] ? __down_timeout+0x2d0/0x2d0 [ 74.056235][ T1157] ? ext4_es_lookup_extent+0x41d/0xd10 [ 74.061703][ T1157] ext4_map_blocks+0x4cb/0x1640 [ 74.066566][ T1157] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 74.071759][ T1157] ? debug_smp_processor_id+0x2f/0x185 [ 74.077229][ T1157] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.082782][ T1157] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.088757][ T1157] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 74.094236][ T1157] ext4_writepages+0x1a7b/0x33c0 [ 74.099174][ T1157] ? mark_lock+0x20/0xdd0 [ 74.103516][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.109267][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.114896][ T1157] ? do_writepages+0xfa/0x2a0 [ 74.119581][ T1157] do_writepages+0xfa/0x2a0 [ 74.124108][ T1157] ? page_writeback_cpu_online+0x10/0x10 [ 74.129771][ T1157] ? do_raw_spin_lock+0x120/0x2d0 [ 74.134798][ T1157] ? do_raw_spin_unlock+0x171/0x260 [ 74.139992][ T1157] ? _raw_spin_unlock+0x24/0x40 [ 74.144867][ T1157] __filemap_fdatawrite_range+0x2aa/0x390 [ 74.150585][ T1157] ? collapse_file+0x3588/0x4310 [ 74.155521][ T1157] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 74.161595][ T1157] ? _raw_spin_unlock_irq+0x1f/0x80 [ 74.166792][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.172775][ T1157] collapse_file+0x3592/0x4310 [ 74.177556][ T1157] ? collapse_huge_page+0x4350/0x4350 [ 74.182933][ T1157] ? khugepaged+0x24fa/0x3f60 [ 74.187633][ T1157] khugepaged+0x3032/0x3f60 [ 74.192153][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.197789][ T1157] ? lock_downgrade+0x840/0x840 [ 74.202648][ T1157] ? finish_wait+0x260/0x260 [ 74.207243][ T1157] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 74.213051][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.219038][ T1157] ? __kthread_parkme+0x13f/0x1e0 executing program [ 74.224064][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.229694][ T1157] kthread+0x3b5/0x4a0 [ 74.233924][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.239668][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.245404][ T1157] ret_from_fork+0x24/0x30 [ 74.346840][ T1157] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1157 [ 74.356042][ T1157] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 74.362025][ T1157] CPU: 0 PID: 1157 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 74.369913][ T1157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.379963][ T1157] Call Trace: [ 74.383255][ T1157] dump_stack+0x18f/0x20d [ 74.387590][ T1157] debug_smp_processor_id.cold+0x88/0x9b [ 74.393485][ T1157] ext4_mb_new_blocks+0xa54/0x3af0 [ 74.398606][ T1157] ? ext4_ext_search_right+0x2ca/0xb20 [ 74.404069][ T1157] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 74.410222][ T1157] ext4_ext_map_blocks+0x201b/0x33e0 [ 74.415515][ T1157] ? ext4_ext_release+0x10/0x10 [ 74.420388][ T1157] ? __down_timeout+0x2d0/0x2d0 [ 74.425240][ T1157] ? ext4_es_lookup_extent+0x41d/0xd10 [ 74.430704][ T1157] ext4_map_blocks+0x4cb/0x1640 [ 74.435562][ T1157] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 74.440756][ T1157] ? debug_smp_processor_id+0x2f/0x185 [ 74.446223][ T1157] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.451788][ T1157] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.457771][ T1157] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 74.463235][ T1157] ext4_writepages+0x1a7b/0x33c0 [ 74.468177][ T1157] ? mark_lock+0x20/0xdd0 [ 74.472530][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.478209][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.484274][ T1157] ? do_writepages+0xfa/0x2a0 [ 74.488956][ T1157] do_writepages+0xfa/0x2a0 [ 74.493466][ T1157] ? page_writeback_cpu_online+0x10/0x10 [ 74.499097][ T1157] ? do_raw_spin_lock+0x120/0x2d0 [ 74.504139][ T1157] ? do_raw_spin_unlock+0x171/0x260 [ 74.509332][ T1157] ? _raw_spin_unlock+0x24/0x40 [ 74.514195][ T1157] __filemap_fdatawrite_range+0x2aa/0x390 [ 74.519915][ T1157] ? collapse_file+0x3588/0x4310 [ 74.524851][ T1157] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 74.530955][ T1157] ? _raw_spin_unlock_irq+0x1f/0x80 [ 74.536190][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.542176][ T1157] collapse_file+0x3592/0x4310 [ 74.546960][ T1157] ? collapse_huge_page+0x4350/0x4350 [ 74.552941][ T1157] ? khugepaged+0x24fa/0x3f60 [ 74.557637][ T1157] khugepaged+0x3032/0x3f60 [ 74.562166][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.567798][ T1157] ? lock_downgrade+0x840/0x840 [ 74.572645][ T1157] ? finish_wait+0x260/0x260 [ 74.577235][ T1157] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 74.583042][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.589122][ T1157] ? __kthread_parkme+0x13f/0x1e0 [ 74.594147][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.599781][ T1157] kthread+0x3b5/0x4a0 [ 74.603846][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.609557][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 74.615277][ T1157] ret_from_fork+0x24/0x30 [ 74.761623][ T1157] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1157 [ 74.770952][ T1157] caller is ext4_mb_new_blocks+0xa54/0x3af0 [ 74.776889][ T1157] CPU: 0 PID: 1157 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 74.784772][ T1157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.794816][ T1157] Call Trace: [ 74.798107][ T1157] dump_stack+0x18f/0x20d [ 74.802440][ T1157] debug_smp_processor_id.cold+0x88/0x9b [ 74.808076][ T1157] ext4_mb_new_blocks+0xa54/0x3af0 [ 74.813202][ T1157] ? ext4_ext_search_right+0x2ca/0xb20 [ 74.818686][ T1157] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 74.824843][ T1157] ext4_ext_map_blocks+0x201b/0x33e0 [ 74.830137][ T1157] ? ext4_ext_release+0x10/0x10 [ 74.835004][ T1157] ? __down_timeout+0x2d0/0x2d0 [ 74.839853][ T1157] ? ext4_es_lookup_extent+0x41d/0xd10 [ 74.845335][ T1157] ext4_map_blocks+0x4cb/0x1640 [ 74.850215][ T1157] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 74.855497][ T1157] ? debug_smp_processor_id+0x2f/0x185 [ 74.860960][ T1157] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 74.866503][ T1157] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 74.872496][ T1157] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 74.877960][ T1157] ext4_writepages+0x1a7b/0x33c0 [ 74.882897][ T1157] ? mark_lock+0x20/0xdd0 [ 74.887510][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.893170][ T1157] ? __ext4_mark_inode_dirty+0x940/0x940 [ 74.899148][ T1157] ? do_writepages+0xfa/0x2a0 [ 74.903841][ T1157] do_writepages+0xfa/0x2a0 [ 74.908350][ T1157] ? page_writeback_cpu_online+0x10/0x10 [ 74.913986][ T1157] ? do_raw_spin_lock+0x120/0x2d0 [ 74.919113][ T1157] ? do_raw_spin_unlock+0x171/0x260 [ 74.924307][ T1157] ? _raw_spin_unlock+0x24/0x40 [ 74.929161][ T1157] __filemap_fdatawrite_range+0x2aa/0x390 [ 74.934887][ T1157] ? collapse_file+0x3588/0x4310 [ 74.939856][ T1157] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 74.945932][ T1157] ? _raw_spin_unlock_irq+0x1f/0x80 [ 74.951128][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 74.957203][ T1157] collapse_file+0x3592/0x4310 [ 74.962421][ T1157] ? collapse_huge_page+0x4350/0x4350 [ 74.967793][ T1157] ? khugepaged+0x24fa/0x3f60 [ 74.972490][ T1157] khugepaged+0x3032/0x3f60 [ 74.977557][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 74.983302][ T1157] ? lock_downgrade+0x840/0x840 [ 74.988149][ T1157] ? finish_wait+0x260/0x260 [ 74.992739][ T1157] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 74.998828][ T1157] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 75.004824][ T1157] ? __kthread_parkme+0x13f/0x1e0 [ 75.009890][ T1157] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 75.015564][ T1157] kthread+0x3b5/0x4a0 [ 75.019758][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 75.025495][ T1157] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 75.031218][ T1157] ret_from_fork+0x24/0x30 [ 75.287722][ T6834] can: request_module (can-proto-0) failed. [ 75.631520][ T6834] can: request_module (can-proto-0) failed. [ 75.643721][ T6834] can: request_module (can-proto-0) failed. [ 75.691590][ T28] audit: type=1400 audit(1591918611.602:9): avc: denied { create } for pid=6819 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1