Starting Load/Save RF Kill Switch Status... [ 52.137183][ T6727] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6727 [ 52.146959][ T6727] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 52.152849][ T6727] CPU: 0 PID: 6727 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 52.161071][ T6727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.171105][ T6727] Call Trace: [ 52.174380][ T6727] dump_stack+0x18f/0x20d [ 52.178691][ T6727] check_preemption_disabled+0x20d/0x220 [ 52.184388][ T6727] ext4_mb_new_blocks+0xa4d/0x3b70 [ 52.189494][ T6727] ? ext4_ext_search_right+0x2ca/0xb20 [ 52.194929][ T6727] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 52.200628][ T6727] ext4_ext_map_blocks+0x201b/0x33e0 [ 52.205893][ T6727] ? ext4_ext_release+0x10/0x10 [ 52.210730][ T6727] ? down_write_killable+0x170/0x170 [ 52.215988][ T6727] ? ext4_es_lookup_extent+0x41d/0xd10 [ 52.221429][ T6727] ext4_map_blocks+0x4cb/0x1640 [ 52.226262][ T6727] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 52.231449][ T6727] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 52.236974][ T6727] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 52.242941][ T6727] ? prandom_u32_state+0xe/0x170 [ 52.247862][ T6727] ? __brelse+0x84/0xa0 [ 52.252014][ T6727] ? __ext4_new_inode+0x144/0x55e0 [ 52.257193][ T6727] ext4_getblk+0xad/0x520 [ 52.261502][ T6727] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 52.267207][ T6727] ? ext4_free_inode+0x1700/0x1700 [ 52.272314][ T6727] ext4_bread+0x7c/0x380 [ 52.276541][ T6727] ? ext4_getblk+0x520/0x520 [ 52.281119][ T6727] ? dquot_get_next_dqblk+0x180/0x180 [ 52.286484][ T6727] ext4_append+0x153/0x360 [ 52.290902][ T6727] ext4_mkdir+0x5e0/0xdf0 [ 52.295233][ T6727] ? ext4_rmdir+0xde0/0xde0 [ 52.299731][ T6727] ? security_inode_permission+0xc4/0xf0 [ 52.305351][ T6727] vfs_mkdir+0x419/0x690 [ 52.309600][ T6727] do_mkdirat+0x21e/0x280 [ 52.313944][ T6727] ? __ia32_sys_mknod+0xb0/0xb0 [ 52.318782][ T6727] ? do_syscall_64+0x1c/0xe0 [ 52.323352][ T6727] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.329310][ T6727] do_syscall_64+0x60/0xe0 [ 52.333703][ T6727] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.339586][ T6727] RIP: 0033:0x7f2c5793e687 [ 52.343971][ T6727] Code: Bad RIP value. [ 52.348012][ T6727] RSP: 002b:00007ffeb09eef28 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 52.356421][ T6727] RAX: ffffffffffffffda RBX: 000056333b50b985 RCX: 00007f2c5793e687 [ 52.364480][ T6727] RDX: 00007ffeb09eedf0 RSI: 00000000000001ed RDI: 000056333b50b985 [ 52.372429][ T6727] RBP: 00007f2c5793e680 R08: 0000000000000100 R09: 0000000000000000 [ 52.381170][ T6727] R10: 000056333b50b980 R11: 0000000000000246 R12: 00000000000001ed [ 52.389130][ T6727] R13: 00007ffeb09ef0b0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 56.445397][ T38] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:2/38 [ 56.454549][ T38] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.460821][ T38] CPU: 1 PID: 38 Comm: kworker/u4:2 Not tainted 5.7.0-syzkaller #0 [ 56.468708][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.478758][ T38] Workqueue: writeback wb_workfn (flush-8:0) [ 56.484859][ T38] Call Trace: [ 56.488136][ T38] dump_stack+0x18f/0x20d [ 56.492448][ T38] check_preemption_disabled+0x20d/0x220 [ 56.498071][ T38] ext4_mb_new_blocks+0xa4d/0x3b70 [ 56.503202][ T38] ? ext4_find_extent+0x81a/0xad0 [ 56.508300][ T38] ? ext4_ext_search_right+0x2ca/0xb20 [ 56.513825][ T38] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 56.519524][ T38] ext4_ext_map_blocks+0x201b/0x33e0 [ 56.525009][ T38] ? ext4_ext_release+0x10/0x10 [ 56.529910][ T38] ? down_write_killable+0x170/0x170 [ 56.535183][ T38] ? ext4_es_lookup_extent+0x41d/0xd10 [ 56.540730][ T38] ext4_map_blocks+0x4cb/0x1640 [ 56.545647][ T38] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 56.550856][ T38] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.556577][ T38] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.562710][ T38] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 56.568152][ T38] ext4_writepages+0x1a7b/0x33c0 [ 56.573095][ T38] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.578716][ T38] ? __lock_acquire+0x2224/0x48b0 [ 56.583730][ T38] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.589703][ T38] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 56.595680][ T38] ? __ext4_mark_inode_dirty+0x940/0x940 [ 56.601290][ T38] ? do_writepages+0xfa/0x2a0 [ 56.605944][ T38] do_writepages+0xfa/0x2a0 [ 56.610428][ T38] ? page_writeback_cpu_online+0x10/0x10 [ 56.616151][ T38] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.621684][ T38] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.627749][ T38] ? lock_downgrade+0x840/0x840 [ 56.632584][ T38] __writeback_single_inode+0x12a/0x13d0 [ 56.638192][ T38] ? _raw_spin_unlock+0x24/0x40 [ 56.643032][ T38] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 56.648990][ T38] writeback_sb_inodes+0x515/0xdc0 [ 56.654081][ T38] ? __writeback_single_inode+0x13d0/0x13d0 [ 56.659971][ T38] __writeback_inodes_wb+0xc3/0x250 [ 56.665295][ T38] wb_writeback+0x8db/0xd50 [ 56.669794][ T38] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 56.676223][ T38] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 56.682100][ T38] ? cpumask_next+0x3c/0x40 [ 56.686597][ T38] ? get_nr_dirty_inodes+0xd6/0x130 [ 56.691776][ T38] wb_workfn+0xab3/0x1090 [ 56.696095][ T38] ? inode_wait_for_writeback+0x30/0x30 [ 56.701628][ T38] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.707169][ T38] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 56.713134][ T38] process_one_work+0x965/0x1690 [ 56.718179][ T38] ? lock_release+0x800/0x800 [ 56.722844][ T38] ? pwq_dec_nr_in_flight+0x310/0x310 [ 56.728200][ T38] ? rwlock_bug.part.0+0x90/0x90 [ 56.733142][ T38] worker_thread+0x96/0xe10 [ 56.738507][ T38] ? process_one_work+0x1690/0x1690 [ 56.743702][ T38] kthread+0x3b5/0x4a0 [ 56.747758][ T38] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.753464][ T38] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 56.759269][ T38] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.0.115' (ECDSA) to the list of known hosts. 2020/06/14 00:58:39 fuzzer started 2020/06/14 00:58:39 connecting to host at 10.128.0.26:46015 2020/06/14 00:58:39 checking machine... 2020/06/14 00:58:39 checking revisions... 2020/06/14 00:58:39 testing simple program... [ 57.530852][ T6777] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6777 [ 57.539934][ T6777] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.545919][ T6777] CPU: 1 PID: 6777 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 57.553985][ T6777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.564028][ T6777] Call Trace: [ 57.567322][ T6777] dump_stack+0x18f/0x20d [ 57.571646][ T6777] check_preemption_disabled+0x20d/0x220 [ 57.577260][ T6777] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.582616][ T6777] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.588048][ T6777] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.593746][ T6777] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.600580][ T6777] ? ext4_ext_release+0x10/0x10 [ 57.605422][ T6777] ? down_write_killable+0x170/0x170 [ 57.610782][ T6777] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.616222][ T6777] ext4_map_blocks+0x4cb/0x1640 [ 57.621199][ T6777] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.626381][ T6777] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.631915][ T6777] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.637875][ T6777] ? prandom_u32_state+0xe/0x170 [ 57.642814][ T6777] ? __brelse+0x84/0xa0 [ 57.646952][ T6777] ? __ext4_new_inode+0x144/0x55e0 [ 57.652054][ T6777] ext4_getblk+0xad/0x520 [ 57.656373][ T6777] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 57.662071][ T6777] ? ext4_free_inode+0x1700/0x1700 [ 57.667177][ T6777] ext4_bread+0x7c/0x380 [ 57.671394][ T6777] ? ext4_getblk+0x520/0x520 [ 57.675959][ T6777] ? dquot_get_next_dqblk+0x180/0x180 [ 57.681358][ T6777] ext4_append+0x153/0x360 [ 57.685771][ T6777] ext4_mkdir+0x5e0/0xdf0 [ 57.690184][ T6777] ? ext4_rmdir+0xde0/0xde0 [ 57.694674][ T6777] ? security_inode_permission+0xc4/0xf0 [ 57.700307][ T6777] vfs_mkdir+0x419/0x690 [ 57.704647][ T6777] do_mkdirat+0x21e/0x280 [ 57.708967][ T6777] ? __ia32_sys_mknod+0xb0/0xb0 [ 57.713814][ T6777] ? do_syscall_64+0x1c/0xe0 [ 57.718477][ T6777] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 57.724439][ T6777] do_syscall_64+0x60/0xe0 [ 57.728944][ T6777] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.735598][ T6777] RIP: 0033:0x4b02a0 [ 57.739575][ T6777] Code: Bad RIP value. [ 57.743619][ T6777] RSP: 002b:000000c0000df4b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 57.752032][ T6777] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 57.759995][ T6777] RDX: 00000000000001c0 RSI: 000000c00009ec60 RDI: ffffffffffffff9c [ 57.768057][ T6777] RBP: 000000c0000df510 R08: 0000000000000000 R09: 0000000000000000 [ 57.776269][ T6777] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 57.785531][ T6777] R13: 0000000000000064 R14: 0000000000000063 R15: 0000000000000100 [ 57.800254][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 57.809687][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.815897][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 57.821773][ T6790] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6790 [ 57.823786][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.823815][ T1153] Call Trace: [ 57.833236][ T6790] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.843322][ T1153] dump_stack+0x18f/0x20d [ 57.843342][ T1153] check_preemption_disabled+0x20d/0x220 [ 57.843358][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.843381][ T1153] ? ext4_find_extent+0x81a/0xad0 [ 57.873010][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.878457][ T1153] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.884174][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.889474][ T1153] ? ext4_ext_release+0x10/0x10 [ 57.894325][ T1153] ? down_write_killable+0x170/0x170 [ 57.899589][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.905034][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 57.909885][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.915067][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.920613][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.926590][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.932045][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 57.936968][ T1153] ? lock_release+0x7c0/0x800 [ 57.941634][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.947267][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.952900][ T1153] ? do_writepages+0xfa/0x2a0 [ 57.957607][ T1153] do_writepages+0xfa/0x2a0 [ 57.962094][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 57.967811][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 57.972820][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 57.978010][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 57.982860][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 57.988561][ T1153] ? collapse_file+0x35a2/0x4330 [ 57.993477][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 57.999626][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 58.004809][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.010782][ T1153] collapse_file+0x35ac/0x4330 [ 58.015561][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 58.021801][ T1153] ? khugepaged+0x2506/0x3fc0 [ 58.026468][ T1153] ? xas_find+0x31a/0x880 [ 58.030779][ T1153] ? check_preemption_disabled+0x38/0x220 [ 58.036485][ T1153] khugepaged+0x3041/0x3fc0 [ 58.041002][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.046614][ T1153] ? lock_downgrade+0x840/0x840 [ 58.052854][ T1153] ? finish_wait+0x260/0x260 [ 58.057432][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 58.063219][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.069190][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 58.074196][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.079812][ T1153] kthread+0x3b5/0x4a0 [ 58.083886][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.089586][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.095292][ T1153] ret_from_fork+0x1f/0x30 [ 58.099704][ T6790] CPU: 0 PID: 6790 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.107947][ T6790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.118006][ T6790] Call Trace: [ 58.121356][ T6790] dump_stack+0x18f/0x20d [ 58.125720][ T6790] check_preemption_disabled+0x20d/0x220 [ 58.131354][ T6790] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.136475][ T6790] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.142665][ T6790] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.148484][ T6790] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.153790][ T6790] ? ext4_ext_release+0x10/0x10 [ 58.158841][ T6790] ? down_write_killable+0x170/0x170 [ 58.164155][ T6790] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.165968][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 58.169718][ T6790] ext4_map_blocks+0x4cb/0x1640 [ 58.169742][ T6790] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.169760][ T6790] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.169776][ T6790] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.169792][ T6790] ? prandom_u32_state+0xe/0x170 [ 58.169811][ T6790] ? __brelse+0x84/0xa0 [ 58.169826][ T6790] ? __ext4_new_inode+0x144/0x55e0 [ 58.169847][ T6790] ext4_getblk+0xad/0x520 [ 58.169866][ T6790] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.169888][ T6790] ? ext4_free_inode+0x1700/0x1700 [ 58.169907][ T6790] ext4_bread+0x7c/0x380 [ 58.179049][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.183838][ T6790] ? ext4_getblk+0x520/0x520 [ 58.246558][ T6790] ? dquot_get_next_dqblk+0x180/0x180 [ 58.251976][ T6790] ext4_append+0x153/0x360 [ 58.256485][ T6790] ext4_mkdir+0x5e0/0xdf0 [ 58.261411][ T6790] ? ext4_rmdir+0xde0/0xde0 [ 58.266518][ T6790] ? security_inode_permission+0xc4/0xf0 [ 58.272605][ T6790] vfs_mkdir+0x419/0x690 [ 58.277182][ T6790] do_mkdirat+0x21e/0x280 [ 58.281595][ T6790] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.286538][ T6790] ? do_syscall_64+0x1c/0xe0 [ 58.291209][ T6790] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.297298][ T6790] do_syscall_64+0x60/0xe0 [ 58.302065][ T6790] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.308915][ T6790] RIP: 0033:0x45bee7 [ 58.313157][ T6790] Code: Bad RIP value. [ 58.317524][ T6790] RSP: 002b:00007ffd082590e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 58.326005][ T6790] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 58.333961][ T6790] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffd082592c0 [ 58.342004][ T6790] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002ec0 [ 58.350046][ T6790] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 58.358091][ T6790] R13: 00007ffd082592c0 R14: 8421084210842109 R15: 00007ffd082592cc [ 58.366084][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 58.374081][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.384578][ T1153] Call Trace: [ 58.388414][ T1153] dump_stack+0x18f/0x20d [ 58.392862][ T1153] check_preemption_disabled+0x20d/0x220 [ 58.398505][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.403816][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.409911][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 58.416896][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.422492][ T1153] ? ext4_ext_release+0x10/0x10 [ 58.428866][ T1153] ? down_write_killable+0x170/0x170 [ 58.434349][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.439905][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 58.444779][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.449990][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.455808][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.461888][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 58.464612][ T6792] IPVS: ftp: loaded support on port[0] = 21 [ 58.469026][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 58.480490][ T1153] ? lock_release+0x7c0/0x800 [ 58.485201][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 58.490870][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 58.496774][ T1153] ? do_writepages+0xfa/0x2a0 [ 58.501730][ T1153] do_writepages+0xfa/0x2a0 [ 58.507032][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 58.513196][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 58.513669][ T6792] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6792 [ 58.519271][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 58.519288][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 58.519305][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 58.519321][ T1153] ? collapse_file+0x35a2/0x4330 [ 58.519334][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 58.519356][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 58.529789][ T6792] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.534901][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.534924][ T1153] collapse_file+0x35ac/0x4330 [ 58.534955][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 58.534969][ T1153] ? khugepaged+0x2506/0x3fc0 [ 58.534995][ T1153] ? xas_find+0x31a/0x880 [ 58.535018][ T1153] ? check_preemption_disabled+0x38/0x220 [ 58.599696][ T1153] khugepaged+0x3041/0x3fc0 [ 58.604297][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.609922][ T1153] ? lock_downgrade+0x840/0x840 [ 58.614966][ T1153] ? finish_wait+0x260/0x260 [ 58.619731][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 58.625521][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.632140][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 58.637159][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 58.642776][ T1153] kthread+0x3b5/0x4a0 [ 58.646854][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.652640][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.658347][ T1153] ret_from_fork+0x1f/0x30 [ 58.662778][ T6792] CPU: 0 PID: 6792 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.671386][ T6792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.682406][ T6792] Call Trace: [ 58.685708][ T6792] dump_stack+0x18f/0x20d [ 58.690045][ T6792] check_preemption_disabled+0x20d/0x220 [ 58.695701][ T6792] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.700834][ T6792] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.706324][ T6792] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.712141][ T6792] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.716131][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 58.717426][ T6792] ? ext4_ext_release+0x10/0x10 [ 58.727113][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.731964][ T6792] ? down_write_killable+0x170/0x170 [ 58.743180][ T6792] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.748753][ T6792] ext4_map_blocks+0x4cb/0x1640 [ 58.753696][ T6792] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.759174][ T6792] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.764793][ T6792] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.770773][ T6792] ? prandom_u32_state+0xe/0x170 [ 58.775909][ T6792] ? __brelse+0x84/0xa0 [ 58.780163][ T6792] ? __ext4_new_inode+0x144/0x55e0 [ 58.785277][ T6792] ext4_getblk+0xad/0x520 [ 58.789865][ T6792] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.795664][ T6792] ? ext4_free_inode+0x1700/0x1700 [ 58.800767][ T6792] ext4_bread+0x7c/0x380 [ 58.805431][ T6792] ? ext4_getblk+0x520/0x520 [ 58.810005][ T6792] ? dquot_get_next_dqblk+0x180/0x180 [ 58.816760][ T6792] ext4_append+0x153/0x360 [ 58.821179][ T6792] ext4_mkdir+0x5e0/0xdf0 [ 58.825688][ T6792] ? ext4_rmdir+0xde0/0xde0 [ 58.830189][ T6792] ? security_inode_permission+0xc4/0xf0 [ 58.835927][ T6792] vfs_mkdir+0x419/0x690 [ 58.840160][ T6792] do_mkdirat+0x21e/0x280 [ 58.844565][ T6792] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.849675][ T6792] ? do_syscall_64+0x1c/0xe0 [ 58.854251][ T6792] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.860394][ T6792] do_syscall_64+0x60/0xe0 [ 58.864812][ T6792] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.870693][ T6792] RIP: 0033:0x45bee7 [ 58.874628][ T6792] Code: Bad RIP value. [ 58.878774][ T6792] RSP: 002b:00007ffd08258fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 58.887184][ T6792] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 58.895142][ T6792] RDX: 00007ffd08259023 RSI: 00000000000001ff RDI: 00007ffd08259020 [ 58.903114][ T6792] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 58.911156][ T6792] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 58.919372][ T6792] R13: 00007ffd08259010 R14: 0000000000000000 R15: 00007ffd08259020 [ 58.927451][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 58.935348][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.945409][ T1153] Call Trace: [ 58.948709][ T1153] dump_stack+0x18f/0x20d [ 58.953060][ T1153] check_preemption_disabled+0x20d/0x220 [ 58.958799][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.963938][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.969503][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 58.975927][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.981250][ T1153] ? ext4_ext_release+0x10/0x10 [ 58.986130][ T1153] ? down_write_killable+0x170/0x170 [ 58.991415][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.997504][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 59.002366][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.007606][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.013246][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.019259][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.025087][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 59.030150][ T1153] ? lock_release+0x7c0/0x800 [ 59.034930][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.040607][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.046512][ T1153] ? do_writepages+0xfa/0x2a0 [ 59.051193][ T1153] do_writepages+0xfa/0x2a0 [ 59.055811][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 59.061481][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 59.066966][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 59.072207][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 59.077427][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.083196][ T1153] ? collapse_file+0x35a2/0x4330 [ 59.089467][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.095809][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.098465][ T6792] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6792 [ 59.101457][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.112316][ T6792] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.118361][ T1153] collapse_file+0x35ac/0x4330 [ 59.118393][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 59.118407][ T1153] ? khugepaged+0x2506/0x3fc0 [ 59.118433][ T1153] ? xas_find+0x31a/0x880 [ 59.118452][ T1153] ? check_preemption_disabled+0x38/0x220 [ 59.153477][ T1153] khugepaged+0x3041/0x3fc0 [ 59.158009][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.164074][ T1153] ? lock_downgrade+0x840/0x840 [ 59.170049][ T1153] ? finish_wait+0x260/0x260 [ 59.175088][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.181053][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.187332][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 59.192342][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.197957][ T1153] kthread+0x3b5/0x4a0 [ 59.202184][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.208691][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.215307][ T1153] ret_from_fork+0x1f/0x30 [ 59.220736][ T6792] CPU: 0 PID: 6792 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.229542][ T6792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.239600][ T6792] Call Trace: [ 59.242893][ T6792] dump_stack+0x18f/0x20d [ 59.247235][ T6792] check_preemption_disabled+0x20d/0x220 [ 59.252970][ T6792] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.258107][ T6792] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.263599][ T6792] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.269331][ T6792] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.274633][ T6792] ? ext4_ext_release+0x10/0x10 [ 59.279510][ T6792] ? down_write_killable+0x170/0x170 [ 59.284800][ T6792] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.291589][ T6792] ext4_map_blocks+0x4cb/0x1640 [ 59.296475][ T6792] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.302638][ T6792] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.308178][ T6792] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.314647][ T6792] ? prandom_u32_state+0xe/0x170 [ 59.319858][ T6792] ? __brelse+0x84/0xa0 [ 59.324002][ T6792] ? __ext4_new_inode+0x144/0x55e0 [ 59.329401][ T6792] ext4_getblk+0xad/0x520 [ 59.333868][ T6792] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.339577][ T6792] ? ext4_free_inode+0x1700/0x1700 [ 59.345422][ T6792] ext4_bread+0x7c/0x380 [ 59.349645][ T6792] ? ext4_getblk+0x520/0x520 [ 59.356611][ T6792] ? dquot_get_next_dqblk+0x180/0x180 [ 59.362575][ T6792] ext4_append+0x153/0x360 [ 59.367100][ T6792] ext4_mkdir+0x5e0/0xdf0 [ 59.371415][ T6792] ? ext4_rmdir+0xde0/0xde0 [ 59.376075][ T6792] ? security_inode_permission+0xc4/0xf0 [ 59.381691][ T6792] vfs_mkdir+0x419/0x690 [ 59.385938][ T6792] do_mkdirat+0x21e/0x280 [ 59.390599][ T6792] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.395729][ T6792] ? do_syscall_64+0x1c/0xe0 [ 59.401661][ T6792] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.407720][ T6792] do_syscall_64+0x60/0xe0 [ 59.412158][ T6792] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.418151][ T6792] RIP: 0033:0x45bee7 [ 59.422039][ T6792] Code: Bad RIP value. [ 59.426080][ T6792] RSP: 002b:00007ffd08258fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 2020/06/14 00:58:42 building call list... [ 59.434833][ T6792] RAX: ffffffffffffffda RBX: 000000000000e6d0 RCX: 000000000045bee7 [ 59.442790][ T6792] RDX: 00007ffd08259023 RSI: 00000000000001ff RDI: 00007ffd08259020 [ 59.451366][ T6792] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 59.459330][ T6792] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 59.467296][ T6792] R13: 00007ffd08259010 R14: 000000000000e67d R15: 00007ffd08259020 [ 59.783921][ T38] tipc: TX() has been purged, node left! [ 60.266134][ T38] ================================================================== [ 60.274658][ T38] BUG: KASAN: use-after-free in afs_wake_up_async_call+0x6aa/0x770 [ 60.282629][ T38] Write of size 1 at addr ffff8880a0d539e4 by task kworker/u4:2/38 [ 60.290836][ T38] [ 60.293242][ T38] CPU: 1 PID: 38 Comm: kworker/u4:2 Not tainted 5.7.0-syzkaller #0 [ 60.301310][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.312522][ T38] Workqueue: netns cleanup_net [ 60.317367][ T38] Call Trace: [ 60.320767][ T38] dump_stack+0x18f/0x20d [ 60.325114][ T38] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.330655][ T38] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.336199][ T38] ? afs_put_call+0xa40/0xa40 [ 60.340896][ T38] print_address_description.constprop.0.cold+0xd3/0x413 [ 60.347970][ T38] ? vprintk_func+0x97/0x1a6 [ 60.352582][ T38] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.358141][ T38] kasan_report.cold+0x1f/0x37 [ 60.362914][ T38] ? rcu_read_lock_held+0x81/0xb0 [ 60.368024][ T38] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.373587][ T38] afs_wake_up_async_call+0x6aa/0x770 [ 60.378962][ T38] ? afs_close_socket+0x320/0x320 [ 60.383991][ T38] ? afs_put_call+0xa40/0xa40 [ 60.388774][ T38] rxrpc_notify_socket+0x1db/0x5d0 [ 60.393913][ T38] ? afs_put_call+0xa40/0xa40 [ 60.398611][ T38] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 60.405794][ T38] rxrpc_call_completed+0xca/0xf0 [ 60.410850][ T38] rxrpc_discard_prealloc+0x781/0xab0 [ 60.416265][ T38] ? lock_sock_nested+0x94/0x110 [ 60.421661][ T38] rxrpc_listen+0x147/0x360 [ 60.426351][ T38] afs_close_socket+0x95/0x320 [ 60.431116][ T38] ? afs_purge_servers+0x16d/0x300 [ 60.436228][ T38] ? afs_rx_discard_new_call+0x50/0x50 [ 60.441687][ T38] ? init_wait_var_entry+0x200/0x200 [ 60.446975][ T38] ? rcu_read_lock_held_common+0xa0/0xa0 [ 60.452601][ T38] ? check_preemption_disabled+0x38/0x220 [ 60.458322][ T38] afs_net_exit+0x1bc/0x310 [ 60.462823][ T38] ? afs_net_init+0xe30/0xe30 [ 60.468104][ T38] ops_exit_list.isra.0+0xa8/0x150 [ 60.473215][ T38] cleanup_net+0x511/0xa50 [ 60.477631][ T38] ? unregister_pernet_device+0x70/0x70 [ 60.483175][ T38] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.489170][ T38] process_one_work+0x965/0x1690 [ 60.494130][ T38] ? lock_release+0x800/0x800 [ 60.498813][ T38] ? pwq_dec_nr_in_flight+0x310/0x310 [ 60.504200][ T38] ? rwlock_bug.part.0+0x90/0x90 [ 60.509279][ T38] worker_thread+0x96/0xe10 [ 60.513808][ T38] ? process_one_work+0x1690/0x1690 [ 60.519012][ T38] kthread+0x3b5/0x4a0 [ 60.523076][ T38] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.528801][ T38] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.534521][ T38] ret_from_fork+0x1f/0x30 [ 60.538941][ T38] [ 60.541268][ T38] Allocated by task 6792: [ 60.545606][ T38] save_stack+0x1b/0x40 [ 60.549932][ T38] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 60.555559][ T38] kmem_cache_alloc_trace+0x153/0x7d0 [ 60.560931][ T38] afs_alloc_call+0x55/0x630 [ 60.565515][ T38] afs_charge_preallocation+0xe9/0x2d0 [ 60.570965][ T38] afs_open_socket+0x292/0x360 [ 60.575766][ T38] afs_net_init+0xa6c/0xe30 [ 60.580262][ T38] ops_init+0xaf/0x420 [ 60.584322][ T38] setup_net+0x2de/0x860 [ 60.588557][ T38] copy_net_ns+0x293/0x590 [ 60.592972][ T38] create_new_namespaces+0x3fb/0xb30 [ 60.598248][ T38] unshare_nsproxy_namespaces+0xbd/0x1f0 [ 60.603870][ T38] ksys_unshare+0x43d/0x8e0 [ 60.608429][ T38] __x64_sys_unshare+0x2d/0x40 [ 60.613183][ T38] do_syscall_64+0x60/0xe0 [ 60.617609][ T38] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.623494][ T38] [ 60.625814][ T38] Freed by task 38: [ 60.629704][ T38] save_stack+0x1b/0x40 [ 60.633853][ T38] __kasan_slab_free+0xf7/0x140 [ 60.638695][ T38] kfree+0x109/0x2b0 [ 60.642593][ T38] afs_put_call+0x585/0xa40 [ 60.647094][ T38] rxrpc_discard_prealloc+0x764/0xab0 [ 60.652458][ T38] rxrpc_listen+0x147/0x360 [ 60.656954][ T38] afs_close_socket+0x95/0x320 [ 60.661714][ T38] afs_net_exit+0x1bc/0x310 [ 60.666213][ T38] ops_exit_list.isra.0+0xa8/0x150 [ 60.671314][ T38] cleanup_net+0x511/0xa50 [ 60.675728][ T38] process_one_work+0x965/0x1690 [ 60.680656][ T38] worker_thread+0x96/0xe10 [ 60.685176][ T38] kthread+0x3b5/0x4a0 [ 60.689236][ T38] ret_from_fork+0x1f/0x30 [ 60.693635][ T38] [ 60.695967][ T38] The buggy address belongs to the object at ffff8880a0d53800 [ 60.695967][ T38] which belongs to the cache kmalloc-1k of size 1024 [ 60.710015][ T38] The buggy address is located 484 bytes inside of [ 60.710015][ T38] 1024-byte region [ffff8880a0d53800, ffff8880a0d53c00) [ 60.723374][ T38] The buggy address belongs to the page: [ 60.729003][ T38] page:ffffea00028354c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 [ 60.738103][ T38] flags: 0xfffe0000000200(slab) [ 60.742957][ T38] raw: 00fffe0000000200 ffffea000280bc08 ffffea00027fa448 ffff8880aa000c40 [ 60.751536][ T38] raw: 0000000000000000 ffff8880a0d53000 0000000100000002 0000000000000000 [ 60.760365][ T38] page dumped because: kasan: bad access detected [ 60.766765][ T38] [ 60.769091][ T38] Memory state around the buggy address: [ 60.774714][ T38] ffff8880a0d53880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.782769][ T38] ffff8880a0d53900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.790825][ T38] >ffff8880a0d53980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.798978][ T38] ^ [ 60.806165][ T38] ffff8880a0d53a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.814222][ T38] ffff8880a0d53a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.822269][ T38] ================================================================== [ 60.830319][ T38] Disabling lock debugging due to kernel taint [ 60.836508][ T38] Kernel panic - not syncing: panic_on_warn set ... [ 60.843084][ T38] CPU: 1 PID: 38 Comm: kworker/u4:2 Tainted: G B 5.7.0-syzkaller #0 [ 60.852341][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.862394][ T38] Workqueue: netns cleanup_net [ 60.867138][ T38] Call Trace: [ 60.870423][ T38] dump_stack+0x18f/0x20d [ 60.874743][ T38] ? afs_wake_up_async_call+0x5f0/0x770 [ 60.880274][ T38] ? afs_put_call+0xa40/0xa40 [ 60.884944][ T38] panic+0x2e3/0x75c [ 60.888828][ T38] ? __warn_printk+0xf3/0xf3 [ 60.893556][ T38] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 60.899699][ T38] ? trace_hardirqs_on+0x55/0x220 [ 60.904710][ T38] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.910242][ T38] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.916469][ T38] ? afs_put_call+0xa40/0xa40 [ 60.921135][ T38] end_report+0x4d/0x53 [ 60.925287][ T38] kasan_report.cold+0xd/0x37 [ 60.929969][ T38] ? rcu_read_lock_held+0x81/0xb0 [ 60.934993][ T38] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.940710][ T38] afs_wake_up_async_call+0x6aa/0x770 [ 60.946076][ T38] ? afs_close_socket+0x320/0x320 [ 60.951100][ T38] ? afs_put_call+0xa40/0xa40 [ 60.955767][ T38] rxrpc_notify_socket+0x1db/0x5d0 [ 60.960870][ T38] ? afs_put_call+0xa40/0xa40 [ 60.965711][ T38] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 60.972136][ T38] rxrpc_call_completed+0xca/0xf0 [ 60.977156][ T38] rxrpc_discard_prealloc+0x781/0xab0 [ 60.982520][ T38] ? lock_sock_nested+0x94/0x110 [ 60.987457][ T38] rxrpc_listen+0x147/0x360 [ 60.991955][ T38] afs_close_socket+0x95/0x320 [ 60.996718][ T38] ? afs_purge_servers+0x16d/0x300 [ 61.001822][ T38] ? afs_rx_discard_new_call+0x50/0x50 [ 61.007366][ T38] ? init_wait_var_entry+0x200/0x200 [ 61.012735][ T38] ? rcu_read_lock_held_common+0xa0/0xa0 executing program [ 61.018361][ T38] ? check_preemption_disabled+0x38/0x220 [ 61.024088][ T38] afs_net_exit+0x1bc/0x310 [ 61.028591][ T38] ? afs_net_init+0xe30/0xe30 [ 61.033264][ T38] ops_exit_list.isra.0+0xa8/0x150 [ 61.038375][ T38] cleanup_net+0x511/0xa50 [ 61.042790][ T38] ? unregister_pernet_device+0x70/0x70 [ 61.048333][ T38] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.054313][ T38] process_one_work+0x965/0x1690 [ 61.059347][ T38] ? lock_release+0x800/0x800 [ 61.064016][ T38] ? pwq_dec_nr_in_flight+0x310/0x310 [ 61.069379][ T38] ? rwlock_bug.part.0+0x90/0x90 [ 61.074296][ T38] worker_thread+0x96/0xe10 [ 61.078833][ T38] ? process_one_work+0x1690/0x1690 [ 61.084018][ T38] kthread+0x3b5/0x4a0 [ 61.088084][ T38] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.093801][ T38] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.099519][ T38] ret_from_fork+0x1f/0x30 [ 61.105253][ T38] Kernel Offset: disabled [ 61.109584][ T38] Rebooting in 86400 seconds..