Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK [0[ 53.993135][ T6736] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6736 m] Started Updat[ 54.003210][ T6736] caller is ext4_mb_new_blocks+0xa4d/0x3b70 e UTMP about Sys[ 54.010787][ T6736] CPU: 0 PID: 6736 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 tem Runlevel Cha[ 54.020035][ T6736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.031512][ T6736] Call Trace: nges. [ 54.034825][ T6736] dump_stack+0x18f/0x20d [ 54.039754][ T6736] check_preemption_disabled+0x20d/0x220 [ 54.045396][ T6736] ext4_mb_new_blocks+0xa4d/0x3b70 [ 54.050511][ T6736] ? ext4_ext_search_right+0x2ca/0xb20 [ 54.055950][ T6736] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 54.061672][ T6736] ext4_ext_map_blocks+0x201b/0x33e0 [ 54.066959][ T6736] ? ext4_ext_release+0x10/0x10 [ 54.071837][ T6736] ? down_write_killable+0x170/0x170 [ 54.077217][ T6736] ? ext4_es_lookup_extent+0x41d/0xd10 [ 54.082696][ T6736] ext4_map_blocks+0x4cb/0x1640 [ 54.087550][ T6736] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 54.092727][ T6736] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.098512][ T6736] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.104552][ T6736] ? prandom_u32_state+0xe/0x170 [ 54.109485][ T6736] ? __brelse+0x84/0xa0 [ 54.113637][ T6736] ? __ext4_new_inode+0x144/0x55e0 [ 54.119854][ T6736] ext4_getblk+0xad/0x520 [ 54.124176][ T6736] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 54.129876][ T6736] ? ext4_free_inode+0x1700/0x1700 [ 54.134965][ T6736] ext4_bread+0x7c/0x380 [ 54.139186][ T6736] ? ext4_getblk+0x520/0x520 [ 54.144185][ T6736] ? dquot_get_next_dqblk+0x180/0x180 [ 54.149540][ T6736] ext4_append+0x153/0x360 [ 54.153951][ T6736] ext4_mkdir+0x5e0/0xdf0 [ 54.158262][ T6736] ? ext4_rmdir+0xde0/0xde0 [ 54.162743][ T6736] ? security_inode_permission+0xc4/0xf0 [ 54.168356][ T6736] vfs_mkdir+0x419/0x690 [ 54.172579][ T6736] do_mkdirat+0x21e/0x280 [ 54.176884][ T6736] ? __ia32_sys_mknod+0xb0/0xb0 [ 54.181725][ T6736] ? do_syscall_64+0x1c/0xe0 [ 54.186307][ T6736] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.192278][ T6736] do_syscall_64+0x60/0xe0 [ 54.196789][ T6736] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.204272][ T6736] RIP: 0033:0x7f135f884687 [ 54.208671][ T6736] Code: Bad RIP value. [ 54.213509][ T6736] RSP: 002b:00007fff2b65c7c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 54.224821][ T6736] RAX: ffffffffffffffda RBX: 000055ccdce17985 RCX: 00007f135f884687 [ 54.233395][ T6736] RDX: 00007fff2b65c690 RSI: 00000000000001ed RDI: 000055ccdce17985 [ 54.241937][ T6736] RBP: 00007f135f884680 R08: 0000000000000100 R09: 0000000000000000 [ 54.249927][ T6736] R10: 000055ccdce17980 R11: 0000000000000246 R12: 00000000000001ed [ 54.257889][ T6736] R13: 00007fff2b65c950 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.337402][ T305] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:4/305 [ 57.346538][ T305] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.354267][ T305] CPU: 0 PID: 305 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 57.362640][ T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.373074][ T305] Workqueue: writeback wb_workfn (flush-8:0) [ 57.379407][ T305] Call Trace: [ 57.382961][ T305] dump_stack+0x18f/0x20d [ 57.387298][ T305] check_preemption_disabled+0x20d/0x220 [ 57.392916][ T305] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.398097][ T305] ? ext4_find_extent+0x81a/0xad0 [ 57.403184][ T305] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.410010][ T305] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.420996][ T305] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.426273][ T305] ? ext4_ext_release+0x10/0x10 [ 57.431122][ T305] ? down_write_killable+0x170/0x170 [ 57.436488][ T305] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.441930][ T305] ext4_map_blocks+0x4cb/0x1640 [ 57.446762][ T305] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.451971][ T305] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.457506][ T305] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.463462][ T305] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.468901][ T305] ext4_writepages+0x1a7b/0x33c0 [ 57.473830][ T305] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.479439][ T305] ? __lock_acquire+0x2224/0x48b0 [ 57.484448][ T305] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.490408][ T305] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.496366][ T305] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.501977][ T305] ? do_writepages+0xfa/0x2a0 [ 57.506701][ T305] do_writepages+0xfa/0x2a0 [ 57.511209][ T305] ? page_writeback_cpu_online+0x10/0x10 [ 57.516832][ T305] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.522382][ T305] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.528354][ T305] ? lock_downgrade+0x840/0x840 [ 57.533204][ T305] __writeback_single_inode+0x12a/0x13d0 [ 57.538815][ T305] ? _raw_spin_unlock+0x24/0x40 [ 57.543643][ T305] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.549603][ T305] writeback_sb_inodes+0x515/0xdc0 [ 57.554710][ T305] ? __writeback_single_inode+0x13d0/0x13d0 [ 57.560597][ T305] __writeback_inodes_wb+0xc3/0x250 [ 57.565789][ T305] wb_writeback+0x8db/0xd50 [ 57.570289][ T305] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.576596][ T305] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.582479][ T305] ? cpumask_next+0x3c/0x40 [ 57.586961][ T305] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.592137][ T305] wb_workfn+0xab3/0x1090 [ 57.596539][ T305] ? inode_wait_for_writeback+0x30/0x30 [ 57.602065][ T305] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.607602][ T305] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.613566][ T305] process_one_work+0x965/0x1690 [ 57.618503][ T305] ? lock_release+0x800/0x800 [ 57.623168][ T305] ? pwq_dec_nr_in_flight+0x310/0x310 [ 57.628539][ T305] ? rwlock_bug.part.0+0x90/0x90 [ 57.633580][ T305] worker_thread+0x96/0xe10 [ 57.638079][ T305] ? process_one_work+0x1690/0x1690 [ 57.643259][ T305] kthread+0x3b5/0x4a0 [ 57.647324][ T305] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.653066][ T305] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 57.658768][ T305] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.15.203' (ECDSA) to the list of known hosts. 2020/06/14 22:36:52 fuzzer started 2020/06/14 22:36:53 connecting to host at 10.128.0.26:45329 2020/06/14 22:36:53 checking machine... 2020/06/14 22:36:53 checking revisions... 2020/06/14 22:36:53 testing simple program... [ 59.742586][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 59.744679][ T6807] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6807 [ 59.751844][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.751867][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.751875][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.751887][ T1156] Call Trace: [ 59.760943][ T6807] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.766791][ T1156] dump_stack+0x18f/0x20d [ 59.766812][ T1156] check_preemption_disabled+0x20d/0x220 [ 59.766827][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.766844][ T1156] ? ext4_find_extent+0x81a/0xad0 [ 59.766867][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.766880][ T1156] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.766902][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.831003][ T1156] ? ext4_ext_release+0x10/0x10 [ 59.835868][ T1156] ? down_write_killable+0x170/0x170 [ 59.841138][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.846610][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 59.851462][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.856662][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.862211][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.868173][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.873618][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 59.878542][ T1156] ? lock_release+0x7c0/0x800 [ 59.883215][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.888851][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.894469][ T1156] ? do_writepages+0xfa/0x2a0 [ 59.899142][ T1156] do_writepages+0xfa/0x2a0 [ 59.903643][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 59.909259][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 59.914286][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 59.919478][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 59.924315][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.930017][ T1156] ? collapse_file+0x35a2/0x4330 [ 59.934937][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.941025][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.946220][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.952207][ T1156] collapse_file+0x35ac/0x4330 [ 59.956971][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 59.962326][ T1156] ? khugepaged+0x2506/0x3fc0 [ 59.966995][ T1156] ? xas_find+0x31a/0x880 [ 59.971310][ T1156] ? check_preemption_disabled+0x38/0x220 [ 59.977016][ T1156] khugepaged+0x3041/0x3fc0 [ 59.981531][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.987148][ T1156] ? lock_downgrade+0x840/0x840 [ 59.991983][ T1156] ? finish_wait+0x260/0x260 [ 59.996558][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.002349][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.008330][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 60.013352][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.019070][ T1156] kthread+0x3b5/0x4a0 [ 60.023143][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.028842][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.034546][ T1156] ret_from_fork+0x1f/0x30 [ 60.038967][ T6807] CPU: 1 PID: 6807 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 60.046866][ T6807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.056933][ T6807] Call Trace: [ 60.060233][ T6807] dump_stack+0x18f/0x20d [ 60.064580][ T6807] check_preemption_disabled+0x20d/0x220 [ 60.070240][ T6807] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.075360][ T6807] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.080909][ T6807] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.086779][ T6807] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.092098][ T6807] ? ext4_ext_release+0x10/0x10 [ 60.097054][ T6807] ? down_write_killable+0x170/0x170 [ 60.102334][ T6807] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.107783][ T6807] ext4_map_blocks+0x4cb/0x1640 [ 60.112641][ T6807] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.117831][ T6807] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.123353][ T6807] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.129915][ T6807] ? prandom_u32_state+0xe/0x170 [ 60.134829][ T6807] ? __brelse+0x84/0xa0 [ 60.138963][ T6807] ? __ext4_new_inode+0x144/0x55e0 [ 60.144144][ T6807] ext4_getblk+0xad/0x520 [ 60.148452][ T6807] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.154160][ T6807] ? ext4_free_inode+0x1700/0x1700 [ 60.159314][ T6807] ext4_bread+0x7c/0x380 [ 60.163831][ T6807] ? ext4_getblk+0x520/0x520 [ 60.168511][ T6807] ? dquot_get_next_dqblk+0x180/0x180 [ 60.173979][ T6807] ext4_append+0x153/0x360 [ 60.178474][ T6807] ext4_mkdir+0x5e0/0xdf0 [ 60.182838][ T6807] ? ext4_rmdir+0xde0/0xde0 [ 60.187411][ T6807] ? security_inode_permission+0xc4/0xf0 [ 60.193056][ T6807] vfs_mkdir+0x419/0x690 [ 60.197296][ T6807] do_mkdirat+0x21e/0x280 [ 60.201846][ T6807] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.209768][ T6807] ? do_syscall_64+0x1c/0xe0 [ 60.214966][ T6807] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.221220][ T6807] do_syscall_64+0x60/0xe0 [ 60.225909][ T6807] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.231887][ T6807] RIP: 0033:0x4b02a0 [ 60.235756][ T6807] Code: Bad RIP value. [ 60.240161][ T6807] RSP: 002b:000000c0000e34b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 60.248997][ T6807] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 60.257082][ T6807] RDX: 00000000000001c0 RSI: 000000c00009ed60 RDI: ffffffffffffff9c [ 60.265143][ T6807] RBP: 000000c0000e3510 R08: 0000000000000000 R09: 0000000000000000 [ 60.273096][ T6807] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 60.281135][ T6807] R13: 000000000000006c R14: 000000000000006b R15: 0000000000000100 [ 60.297492][ T6826] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6826 [ 60.308175][ T6826] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.314534][ T6826] CPU: 1 PID: 6826 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.322767][ T6826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.334168][ T6826] Call Trace: [ 60.337471][ T6826] dump_stack+0x18f/0x20d [ 60.342006][ T6826] check_preemption_disabled+0x20d/0x220 [ 60.347635][ T6826] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.352958][ T6826] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.358403][ T6826] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.364114][ T6826] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.369516][ T6826] ? ext4_ext_release+0x10/0x10 [ 60.376912][ T6826] ? down_write_killable+0x170/0x170 [ 60.382190][ T6826] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.387654][ T6826] ext4_map_blocks+0x4cb/0x1640 [ 60.392509][ T6826] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.397690][ T6826] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.403660][ T6826] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.409733][ T6826] ? prandom_u32_state+0xe/0x170 [ 60.414649][ T6826] ? __brelse+0x84/0xa0 [ 60.418784][ T6826] ? __ext4_new_inode+0x144/0x55e0 [ 60.423896][ T6826] ext4_getblk+0xad/0x520 [ 60.428215][ T6826] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.433921][ T6826] ? ext4_free_inode+0x1700/0x1700 [ 60.439241][ T6826] ext4_bread+0x7c/0x380 [ 60.443483][ T6826] ? ext4_getblk+0x520/0x520 [ 60.448072][ T6826] ? dquot_get_next_dqblk+0x180/0x180 [ 60.453624][ T6826] ext4_append+0x153/0x360 [ 60.458213][ T6826] ext4_mkdir+0x5e0/0xdf0 [ 60.463221][ T6826] ? ext4_rmdir+0xde0/0xde0 [ 60.467792][ T6826] ? security_inode_permission+0xc4/0xf0 [ 60.473418][ T6826] vfs_mkdir+0x419/0x690 [ 60.477644][ T6826] do_mkdirat+0x21e/0x280 [ 60.481952][ T6826] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.487589][ T6826] ? do_syscall_64+0x1c/0xe0 [ 60.492373][ T6826] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.498347][ T6826] do_syscall_64+0x60/0xe0 [ 60.502765][ T6826] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.508987][ T6826] RIP: 0033:0x45bee7 [ 60.512953][ T6826] Code: Bad RIP value. [ 60.516995][ T6826] RSP: 002b:00007ffcbd5bb048 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 60.525846][ T6826] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 60.534958][ T6826] RDX: 0000000000000002 RSI: 00000000000001c0 RDI: 00007ffcbd5bb220 [ 60.542913][ T6826] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000028c0 [ 60.550887][ T6826] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 60.558937][ T6826] R13: 00007ffcbd5bb220 R14: 8421084210842109 R15: 00007ffcbd5bb22c [ 60.599154][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 60.609207][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.615120][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 60.623006][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.634774][ T1156] Call Trace: [ 60.638072][ T1156] dump_stack+0x18f/0x20d [ 60.642418][ T1156] check_preemption_disabled+0x20d/0x220 [ 60.648074][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.653726][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.659573][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 60.665737][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.669937][ T6827] IPVS: ftp: loaded support on port[0] = 21 [ 60.671035][ T1156] ? ext4_ext_release+0x10/0x10 [ 60.681841][ T1156] ? down_write_killable+0x170/0x170 [ 60.687124][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.692588][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 60.697459][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.702669][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.708310][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.714293][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 60.719760][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 60.724647][ T6827] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6827 [ 60.724722][ T1156] ? lock_release+0x7c0/0x800 [ 60.734162][ T6827] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.738747][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.738790][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 60.738805][ T1156] ? do_writepages+0xfa/0x2a0 [ 60.738823][ T1156] do_writepages+0xfa/0x2a0 [ 60.765060][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 60.770679][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 60.775695][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 60.780889][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 60.785731][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 60.791520][ T1156] ? collapse_file+0x35a2/0x4330 [ 60.796441][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 60.802500][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 60.807696][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.813663][ T1156] collapse_file+0x35ac/0x4330 [ 60.818519][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 60.823979][ T1156] ? khugepaged+0x2506/0x3fc0 [ 60.828646][ T1156] ? xas_find+0x31a/0x880 [ 60.832969][ T1156] ? check_preemption_disabled+0x38/0x220 [ 60.838673][ T1156] khugepaged+0x3041/0x3fc0 [ 60.843177][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.848791][ T1156] ? lock_downgrade+0x840/0x840 [ 60.853629][ T1156] ? finish_wait+0x260/0x260 [ 60.858214][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.863999][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.869968][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 60.874977][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.880594][ T1156] kthread+0x3b5/0x4a0 [ 60.884644][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.890344][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.896049][ T1156] ret_from_fork+0x1f/0x30 [ 60.900466][ T6827] CPU: 1 PID: 6827 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.909232][ T6827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.919292][ T6827] Call Trace: [ 60.922624][ T6827] dump_stack+0x18f/0x20d [ 60.927007][ T6827] check_preemption_disabled+0x20d/0x220 [ 60.932650][ T6827] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.937775][ T6827] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.943246][ T6827] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.947239][ T1156] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1156 [ 60.949000][ T6827] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.958061][ T1156] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.963288][ T6827] ? ext4_ext_release+0x10/0x10 [ 60.974332][ T6827] ? down_write_killable+0x170/0x170 [ 60.980035][ T6827] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.985482][ T6827] ext4_map_blocks+0x4cb/0x1640 [ 60.990333][ T6827] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.995511][ T6827] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.001040][ T6827] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.007002][ T6827] ? prandom_u32_state+0xe/0x170 [ 61.011937][ T6827] ? __brelse+0x84/0xa0 [ 61.016086][ T6827] ? __ext4_new_inode+0x144/0x55e0 [ 61.021272][ T6827] ext4_getblk+0xad/0x520 [ 61.025627][ T6827] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.031333][ T6827] ? ext4_free_inode+0x1700/0x1700 [ 61.036441][ T6827] ext4_bread+0x7c/0x380 [ 61.040666][ T6827] ? ext4_getblk+0x520/0x520 [ 61.045247][ T6827] ? dquot_get_next_dqblk+0x180/0x180 [ 61.050616][ T6827] ext4_append+0x153/0x360 [ 61.055021][ T6827] ext4_mkdir+0x5e0/0xdf0 [ 61.059344][ T6827] ? ext4_rmdir+0xde0/0xde0 [ 61.063832][ T6827] ? security_inode_permission+0xc4/0xf0 [ 61.069481][ T6827] vfs_mkdir+0x419/0x690 [ 61.074318][ T6827] do_mkdirat+0x21e/0x280 [ 61.078635][ T6827] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.083478][ T6827] ? do_syscall_64+0x1c/0xe0 [ 61.088064][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.094028][ T6827] do_syscall_64+0x60/0xe0 [ 61.098430][ T6827] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.104392][ T6827] RIP: 0033:0x45bee7 [ 61.108272][ T6827] Code: Bad RIP value. [ 61.112317][ T6827] RSP: 002b:00007ffcbd5baf38 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 61.120718][ T6827] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 61.128687][ T6827] RDX: 00007ffcbd5baf83 RSI: 00000000000001ff RDI: 00007ffcbd5baf80 [ 61.136662][ T6827] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 61.144618][ T6827] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 61.152659][ T6827] R13: 00007ffcbd5baf70 R14: 0000000000000000 R15: 00007ffcbd5baf80 [ 61.160635][ T1156] CPU: 0 PID: 1156 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.168523][ T1156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.178568][ T1156] Call Trace: [ 61.181861][ T1156] dump_stack+0x18f/0x20d [ 61.186221][ T1156] check_preemption_disabled+0x20d/0x220 [ 61.191860][ T1156] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.197444][ T1156] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.203008][ T1156] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.209173][ T1156] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.214499][ T1156] ? ext4_ext_release+0x10/0x10 [ 61.219379][ T1156] ? down_write_killable+0x170/0x170 [ 61.224688][ T1156] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.230175][ T1156] ext4_map_blocks+0x4cb/0x1640 [ 61.235067][ T1156] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.240284][ T1156] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.245841][ T1156] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.251830][ T1156] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.257302][ T1156] ext4_writepages+0x1a7b/0x33c0 [ 61.262337][ T1156] ? lock_release+0x7c0/0x800 [ 61.267044][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.272712][ T1156] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.278438][ T1156] ? do_writepages+0xfa/0x2a0 [ 61.283121][ T1156] do_writepages+0xfa/0x2a0 [ 61.287636][ T1156] ? page_writeback_cpu_online+0x10/0x10 [ 61.293276][ T1156] ? do_raw_spin_lock+0x120/0x2d0 [ 61.298313][ T1156] ? do_raw_spin_unlock+0x171/0x260 [ 61.303629][ T1156] ? _raw_spin_unlock+0x24/0x40 [ 61.308493][ T1156] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.314419][ T1156] ? collapse_file+0x35a2/0x4330 [ 61.319363][ T1156] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.323365][ T6827] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6827 [ 61.325465][ T1156] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.334884][ T6827] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.339978][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.340000][ T1156] collapse_file+0x35ac/0x4330 [ 61.340032][ T1156] ? collapse_huge_page+0x4350/0x4350 [ 61.340046][ T1156] ? khugepaged+0x2506/0x3fc0 [ 61.340072][ T1156] ? xas_find+0x31a/0x880 [ 61.340088][ T1156] ? check_preemption_disabled+0x38/0x220 [ 61.340106][ T1156] khugepaged+0x3041/0x3fc0 [ 61.340145][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.387782][ T1156] ? lock_downgrade+0x840/0x840 [ 61.392621][ T1156] ? finish_wait+0x260/0x260 [ 61.397197][ T1156] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.403032][ T1156] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.410745][ T1156] ? __kthread_parkme+0x13f/0x1e0 [ 61.415783][ T1156] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.421496][ T1156] kthread+0x3b5/0x4a0 [ 61.425810][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.431520][ T1156] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.437236][ T1156] ret_from_fork+0x1f/0x30 [ 61.441653][ T6827] CPU: 1 PID: 6827 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 61.449903][ T6827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.460051][ T6827] Call Trace: [ 61.463364][ T6827] dump_stack+0x18f/0x20d [ 61.467711][ T6827] check_preemption_disabled+0x20d/0x220 [ 61.473359][ T6827] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.478746][ T6827] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.484208][ T6827] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.489930][ T6827] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.495232][ T6827] ? ext4_ext_release+0x10/0x10 [ 61.500290][ T6827] ? down_write_killable+0x170/0x170 [ 61.505561][ T6827] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.511111][ T6827] ext4_map_blocks+0x4cb/0x1640 [ 61.515949][ T6827] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.521152][ T6827] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.526707][ T6827] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.532678][ T6827] ? prandom_u32_state+0xe/0x170 [ 61.537607][ T6827] ? __brelse+0x84/0xa0 [ 61.541750][ T6827] ? __ext4_new_inode+0x144/0x55e0 [ 61.546929][ T6827] ext4_getblk+0xad/0x520 [ 61.551239][ T6827] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 61.556940][ T6827] ? ext4_free_inode+0x1700/0x1700 [ 61.562031][ T6827] ext4_bread+0x7c/0x380 [ 61.567037][ T6827] ? ext4_getblk+0x520/0x520 [ 61.571604][ T6827] ? dquot_get_next_dqblk+0x180/0x180 [ 61.576974][ T6827] ext4_append+0x153/0x360 [ 61.581376][ T6827] ext4_mkdir+0x5e0/0xdf0 [ 61.585707][ T6827] ? ext4_rmdir+0xde0/0xde0 [ 61.590307][ T6827] ? security_inode_permission+0xc4/0xf0 [ 61.595931][ T6827] vfs_mkdir+0x419/0x690 [ 61.600171][ T6827] do_mkdirat+0x21e/0x280 [ 61.604484][ T6827] ? __ia32_sys_mknod+0xb0/0xb0 [ 61.609321][ T6827] ? do_syscall_64+0x1c/0xe0 [ 61.613896][ T6827] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.619876][ T6827] do_syscall_64+0x60/0xe0 [ 61.624372][ T6827] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.630256][ T6827] RIP: 0033:0x45bee7 [ 61.634128][ T6827] Code: Bad RIP value. [ 61.638450][ T6827] RSP: 002b:00007ffcbd5baf38 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 2020/06/14 22:36:55 building call list... [ 61.646870][ T6827] RAX: ffffffffffffffda RBX: 000000000000ef7f RCX: 000000000045bee7 [ 61.656400][ T6827] RDX: 00007ffcbd5baf83 RSI: 00000000000001ff RDI: 00007ffcbd5baf80 [ 61.664373][ T6827] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 61.672341][ T6827] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 [ 61.680296][ T6827] R13: 00007ffcbd5baf70 R14: 000000000000ef0c R15: 00007ffcbd5baf80 [ 62.016149][ T305] tipc: TX() has been purged, node left! executing program [ 62.549405][ T305] ================================================================== [ 62.557632][ T305] BUG: KASAN: use-after-free in afs_wake_up_async_call+0x6aa/0x770 [ 62.565516][ T305] Write of size 1 at addr ffff888098c1b1e4 by task kworker/u4:4/305 [ 62.573584][ T305] [ 62.575918][ T305] CPU: 0 PID: 305 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 62.583884][ T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.593954][ T305] Workqueue: netns cleanup_net [ 62.599176][ T305] Call Trace: [ 62.602905][ T305] dump_stack+0x18f/0x20d [ 62.607240][ T305] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.612784][ T305] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.618323][ T305] ? afs_put_call+0xa40/0xa40 [ 62.623166][ T305] print_address_description.constprop.0.cold+0xd3/0x413 [ 62.630198][ T305] ? vprintk_func+0x97/0x1a6 [ 62.634794][ T305] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.640336][ T305] kasan_report.cold+0x1f/0x37 [ 62.646057][ T305] ? rcu_read_lock_held+0x81/0xb0 [ 62.651114][ T305] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.657426][ T305] afs_wake_up_async_call+0x6aa/0x770 [ 62.662984][ T305] ? afs_close_socket+0x320/0x320 [ 62.668376][ T305] ? afs_put_call+0xa40/0xa40 [ 62.674279][ T305] rxrpc_notify_socket+0x1db/0x5d0 [ 62.679658][ T305] ? afs_put_call+0xa40/0xa40 [ 62.684333][ T305] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 62.690749][ T305] rxrpc_call_completed+0xca/0xf0 [ 62.696872][ T305] rxrpc_discard_prealloc+0x781/0xab0 [ 62.702245][ T305] ? lock_sock_nested+0x94/0x110 [ 62.707194][ T305] rxrpc_listen+0x147/0x360 [ 62.711698][ T305] afs_close_socket+0x95/0x320 [ 62.716543][ T305] ? afs_purge_servers+0x16d/0x300 [ 62.722184][ T305] ? afs_rx_discard_new_call+0x50/0x50 [ 62.727652][ T305] ? init_wait_var_entry+0x200/0x200 [ 62.732957][ T305] ? rcu_read_lock_held_common+0xa0/0xa0 [ 62.738600][ T305] ? check_preemption_disabled+0x38/0x220 [ 62.744330][ T305] afs_net_exit+0x1bc/0x310 [ 62.749803][ T305] ? afs_net_init+0xe30/0xe30 [ 62.754476][ T305] ops_exit_list.isra.0+0xa8/0x150 [ 62.759637][ T305] cleanup_net+0x511/0xa50 [ 62.764057][ T305] ? unregister_pernet_device+0x70/0x70 [ 62.769598][ T305] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.775583][ T305] process_one_work+0x965/0x1690 [ 62.780523][ T305] ? lock_release+0x800/0x800 [ 62.785215][ T305] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.790614][ T305] ? rwlock_bug.part.0+0x90/0x90 [ 62.795549][ T305] worker_thread+0x96/0xe10 [ 62.800074][ T305] ? process_one_work+0x1690/0x1690 [ 62.805292][ T305] kthread+0x3b5/0x4a0 [ 62.809368][ T305] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.815082][ T305] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.820804][ T305] ret_from_fork+0x1f/0x30 [ 62.825228][ T305] [ 62.827549][ T305] Allocated by task 6827: [ 62.831877][ T305] save_stack+0x1b/0x40 [ 62.836027][ T305] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 62.841659][ T305] kmem_cache_alloc_trace+0x153/0x7d0 [ 62.847026][ T305] afs_alloc_call+0x55/0x630 [ 62.851605][ T305] afs_charge_preallocation+0xe9/0x2d0 [ 62.857055][ T305] afs_open_socket+0x292/0x360 [ 62.861813][ T305] afs_net_init+0xa6c/0xe30 [ 62.866308][ T305] ops_init+0xaf/0x420 [ 62.870369][ T305] setup_net+0x2de/0x860 [ 62.874776][ T305] copy_net_ns+0x293/0x590 [ 62.879190][ T305] create_new_namespaces+0x3fb/0xb30 [ 62.884464][ T305] unshare_nsproxy_namespaces+0xbd/0x1f0 [ 62.890091][ T305] ksys_unshare+0x43d/0x8e0 [ 62.894589][ T305] __x64_sys_unshare+0x2d/0x40 [ 62.899345][ T305] do_syscall_64+0x60/0xe0 [ 62.903754][ T305] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.909654][ T305] [ 62.911974][ T305] Freed by task 305: [ 62.915880][ T305] save_stack+0x1b/0x40 [ 62.920034][ T305] __kasan_slab_free+0xf7/0x140 [ 62.924981][ T305] kfree+0x109/0x2b0 [ 62.928878][ T305] afs_put_call+0x585/0xa40 [ 62.933379][ T305] rxrpc_discard_prealloc+0x764/0xab0 [ 62.938747][ T305] rxrpc_listen+0x147/0x360 [ 62.943242][ T305] afs_close_socket+0x95/0x320 [ 62.948004][ T305] afs_net_exit+0x1bc/0x310 [ 62.952501][ T305] ops_exit_list.isra.0+0xa8/0x150 [ 62.957603][ T305] cleanup_net+0x511/0xa50 [ 62.962014][ T305] process_one_work+0x965/0x1690 [ 62.966944][ T305] worker_thread+0x96/0xe10 [ 62.971460][ T305] kthread+0x3b5/0x4a0 [ 62.975522][ T305] ret_from_fork+0x1f/0x30 [ 62.979922][ T305] [ 62.982249][ T305] The buggy address belongs to the object at ffff888098c1b000 [ 62.982249][ T305] which belongs to the cache kmalloc-1k of size 1024 [ 62.996314][ T305] The buggy address is located 484 bytes inside of [ 62.996314][ T305] 1024-byte region [ffff888098c1b000, ffff888098c1b400) [ 63.009661][ T305] The buggy address belongs to the page: [ 63.015287][ T305] page:ffffea00026306c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 [ 63.024400][ T305] flags: 0xfffe0000000200(slab) [ 63.029257][ T305] raw: 00fffe0000000200 ffffea00024f3188 ffffea0002500b88 ffff8880aa000c40 [ 63.037840][ T305] raw: 0000000000000000 ffff888098c1b000 0000000100000002 0000000000000000 [ 63.046414][ T305] page dumped because: kasan: bad access detected [ 63.052816][ T305] [ 63.055133][ T305] Memory state around the buggy address: [ 63.060759][ T305] ffff888098c1b080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 63.068814][ T305] ffff888098c1b100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 63.076871][ T305] >ffff888098c1b180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 63.084935][ T305] ^ [ 63.092125][ T305] ffff888098c1b200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 63.100190][ T305] ffff888098c1b280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 63.108326][ T305] ================================================================== [ 63.116484][ T305] Disabling lock debugging due to kernel taint [ 63.122676][ T305] Kernel panic - not syncing: panic_on_warn set ... [ 63.129261][ T305] CPU: 0 PID: 305 Comm: kworker/u4:4 Tainted: G B 5.7.0-syzkaller #0 [ 63.138606][ T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.148656][ T305] Workqueue: netns cleanup_net [ 63.153402][ T305] Call Trace: [ 63.156690][ T305] dump_stack+0x18f/0x20d [ 63.161044][ T305] ? afs_wake_up_async_call+0x5f0/0x770 [ 63.166579][ T305] ? afs_put_call+0xa40/0xa40 [ 63.171271][ T305] panic+0x2e3/0x75c [ 63.175154][ T305] ? __warn_printk+0xf3/0xf3 [ 63.179748][ T305] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 63.185899][ T305] ? trace_hardirqs_on+0x55/0x220 [ 63.190916][ T305] ? afs_wake_up_async_call+0x6aa/0x770 [ 63.196448][ T305] ? afs_wake_up_async_call+0x6aa/0x770 [ 63.201985][ T305] ? afs_put_call+0xa40/0xa40 [ 63.206663][ T305] end_report+0x4d/0x53 [ 63.210814][ T305] kasan_report.cold+0xd/0x37 [ 63.215487][ T305] ? rcu_read_lock_held+0x81/0xb0 [ 63.220526][ T305] ? afs_wake_up_async_call+0x6aa/0x770 [ 63.226065][ T305] afs_wake_up_async_call+0x6aa/0x770 [ 63.231426][ T305] ? afs_close_socket+0x320/0x320 [ 63.236438][ T305] ? afs_put_call+0xa40/0xa40 [ 63.241102][ T305] rxrpc_notify_socket+0x1db/0x5d0 [ 63.246201][ T305] ? afs_put_call+0xa40/0xa40 [ 63.250867][ T305] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 63.257275][ T305] rxrpc_call_completed+0xca/0xf0 [ 63.262309][ T305] rxrpc_discard_prealloc+0x781/0xab0 [ 63.267683][ T305] ? lock_sock_nested+0x94/0x110 [ 63.272726][ T305] rxrpc_listen+0x147/0x360 [ 63.277224][ T305] afs_close_socket+0x95/0x320 [ 63.281993][ T305] ? afs_purge_servers+0x16d/0x300 [ 63.287100][ T305] ? afs_rx_discard_new_call+0x50/0x50 [ 63.292559][ T305] ? init_wait_var_entry+0x200/0x200 [ 63.297895][ T305] ? rcu_read_lock_held_common+0xa0/0xa0 [ 63.303529][ T305] ? check_preemption_disabled+0x38/0x220 [ 63.309255][ T305] afs_net_exit+0x1bc/0x310 [ 63.313761][ T305] ? afs_net_init+0xe30/0xe30 [ 63.318439][ T305] ops_exit_list.isra.0+0xa8/0x150 [ 63.323555][ T305] cleanup_net+0x511/0xa50 [ 63.328016][ T305] ? unregister_pernet_device+0x70/0x70 [ 63.333563][ T305] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 63.339706][ T305] process_one_work+0x965/0x1690 [ 63.344644][ T305] ? lock_release+0x800/0x800 [ 63.349320][ T305] ? pwq_dec_nr_in_flight+0x310/0x310 [ 63.354680][ T305] ? rwlock_bug.part.0+0x90/0x90 [ 63.359739][ T305] worker_thread+0x96/0xe10 [ 63.364253][ T305] ? process_one_work+0x1690/0x1690 [ 63.369450][ T305] kthread+0x3b5/0x4a0 [ 63.373517][ T305] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.379263][ T305] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.384978][ T305] ret_from_fork+0x1f/0x30 [ 63.391039][ T305] Kernel Offset: disabled [ 63.395355][ T305] Rebooting in 86400 seconds..