[ 44.718516][ T1] RBP: 00007ffd81e09260 R08: 00007f5e5a055940 R09: 00000000ffffffff [ 44.726606][ T1] R10: 000056524de41e00 R11: 0000000000000246 R12: 000056524de41e00 [ 44.735199][ T1] R13: 0000000000000000 R14: 0000000000000017 R15: 00007ffd81e091d0 [ OK ] Started Daily apt download activities. [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Started OpenBSD Secure Shell server. [ 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 Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ 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... [ 54.350836][ T6732] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6732 [ 54.360477][ T6732] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 54.366860][ T6732] CPU: 1 PID: 6732 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 54.375108][ T6732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.385251][ T6732] Call Trace: [ 54.388582][ T6732] dump_stack+0x18f/0x20d [ 54.392958][ T6732] check_preemption_disabled+0x20d/0x220 [ 54.398713][ T6732] ext4_mb_new_blocks+0xa4d/0x3b70 [ 54.404219][ T6732] ? ext4_ext_search_right+0x2ca/0xb20 [ 54.409690][ T6732] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 54.415441][ T6732] ext4_ext_map_blocks+0x201b/0x33e0 [ 54.420772][ T6732] ? ext4_ext_release+0x10/0x10 [ 54.425647][ T6732] ? down_write_killable+0x170/0x170 [ 54.430951][ T6732] ? ext4_es_lookup_extent+0x41d/0xd10 [ 54.436411][ T6732] ext4_map_blocks+0x4cb/0x1640 [ 54.441327][ T6732] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 54.446542][ T6732] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 54.452266][ T6732] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 54.458275][ T6732] ? prandom_u32_state+0xe/0x170 [ 54.463201][ T6732] ? __brelse+0x84/0xa0 [ 54.467879][ T6732] ? __ext4_new_inode+0x144/0x55e0 [ 54.472977][ T6732] ext4_getblk+0xad/0x520 [ 54.477387][ T6732] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 54.483538][ T6732] ? ext4_free_inode+0x1700/0x1700 [ 54.489256][ T6732] ext4_bread+0x7c/0x380 [ 54.493597][ T6732] ? ext4_getblk+0x520/0x520 [ 54.498183][ T6732] ? dquot_get_next_dqblk+0x180/0x180 [ 54.503572][ T6732] ext4_append+0x153/0x360 [ 54.507981][ T6732] ext4_mkdir+0x5e0/0xdf0 [ 54.512306][ T6732] ? ext4_rmdir+0xde0/0xde0 [ 54.516815][ T6732] ? security_inode_permission+0xc4/0xf0 [ 54.522463][ T6732] vfs_mkdir+0x419/0x690 [ 54.526718][ T6732] do_mkdirat+0x21e/0x280 [ 54.531116][ T6732] ? __ia32_sys_mknod+0xb0/0xb0 [ 54.535963][ T6732] ? do_syscall_64+0x1c/0xe0 [ 54.540807][ T6732] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 54.547223][ T6732] do_syscall_64+0x60/0xe0 [ 54.551634][ T6732] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.557517][ T6732] RIP: 0033:0x7f6e00a33687 [ 54.562090][ T6732] Code: Bad RIP value. [ 54.566147][ T6732] RSP: 002b:00007ffd79b263c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 54.574666][ T6732] RAX: ffffffffffffffda RBX: 0000556a1ebd2985 RCX: 00007f6e00a33687 [ 54.582821][ T6732] RDX: 00007ffd79b26290 RSI: 00000000000001ed RDI: 0000556a1ebd2985 [ 54.590873][ T6732] RBP: 00007f6e00a33680 R08: 0000000000000100 R09: 0000000000000000 [ 54.598852][ T6732] R10: 0000556a1ebd2980 R11: 0000000000000246 R12: 00000000000001ed [ 54.606845][ T6732] R13: 00007ffd79b26550 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 57.724289][ T21] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:1/21 [ 57.733360][ T21] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.739668][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-syzkaller #0 [ 57.747557][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.757614][ T21] Workqueue: writeback wb_workfn (flush-8:0) [ 57.763593][ T21] Call Trace: [ 57.766890][ T21] dump_stack+0x18f/0x20d [ 57.771369][ T21] check_preemption_disabled+0x20d/0x220 [ 57.777000][ T21] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.782101][ T21] ? ext4_find_extent+0x81a/0xad0 [ 57.787136][ T21] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.792583][ T21] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.798303][ T21] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.803589][ T21] ? ext4_ext_release+0x10/0x10 [ 57.808438][ T21] ? down_write_killable+0x170/0x170 [ 57.813795][ T21] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.819239][ T21] ext4_map_blocks+0x4cb/0x1640 [ 57.824093][ T21] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.829273][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.834810][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.840791][ T21] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 57.846539][ T21] ext4_writepages+0x1a7b/0x33c0 [ 57.851477][ T21] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.857092][ T21] ? __lock_acquire+0x2224/0x48b0 [ 57.862105][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.868083][ T21] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 57.874068][ T21] ? __ext4_mark_inode_dirty+0x940/0x940 [ 57.879699][ T21] ? do_writepages+0xfa/0x2a0 [ 57.884394][ T21] do_writepages+0xfa/0x2a0 [ 57.888901][ T21] ? page_writeback_cpu_online+0x10/0x10 [ 57.894544][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.900177][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.906137][ T21] ? lock_downgrade+0x840/0x840 [ 57.910981][ T21] __writeback_single_inode+0x12a/0x13d0 [ 57.916613][ T21] ? _raw_spin_unlock+0x24/0x40 [ 57.921449][ T21] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 57.927410][ T21] writeback_sb_inodes+0x515/0xdc0 [ 57.932508][ T21] ? __writeback_single_inode+0x13d0/0x13d0 [ 57.938426][ T21] __writeback_inodes_wb+0xc3/0x250 [ 57.943667][ T21] wb_writeback+0x8db/0xd50 [ 57.948163][ T21] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 57.954510][ T21] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 57.960398][ T21] ? cpumask_next+0x3c/0x40 [ 57.964883][ T21] ? get_nr_dirty_inodes+0xd6/0x130 [ 57.970073][ T21] wb_workfn+0xab3/0x1090 [ 57.974388][ T21] ? inode_wait_for_writeback+0x30/0x30 [ 57.979929][ T21] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.985463][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.991443][ T21] process_one_work+0x965/0x1690 [ 57.996379][ T21] ? lock_release+0x800/0x800 [ 58.001036][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 58.006388][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 58.011321][ T21] worker_thread+0x96/0xe10 [ 58.015820][ T21] ? process_one_work+0x1690/0x1690 [ 58.020995][ T21] kthread+0x3b5/0x4a0 [ 58.025055][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.030765][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 58.036478][ T21] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.10.56' (ECDSA) to the list of known hosts. 2020/06/14 23:57:31 fuzzer started 2020/06/14 23:57:31 connecting to host at 10.128.0.26:39441 2020/06/14 23:57:31 checking machine... 2020/06/14 23:57:31 checking revisions... 2020/06/14 23:57:31 testing simple program... [ 59.297717][ T6794] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6794 [ 59.306813][ T6794] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.312785][ T6794] CPU: 1 PID: 6794 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 59.320682][ T6794] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.330724][ T6794] Call Trace: [ 59.334018][ T6794] dump_stack+0x18f/0x20d [ 59.338329][ T6794] check_preemption_disabled+0x20d/0x220 [ 59.344027][ T6794] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.349122][ T6794] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.354570][ T6794] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.360286][ T6794] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.365560][ T6794] ? ext4_ext_release+0x10/0x10 [ 59.370401][ T6794] ? down_write_killable+0x170/0x170 [ 59.375663][ T6794] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.381104][ T6794] ext4_map_blocks+0x4cb/0x1640 [ 59.385939][ T6794] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.391127][ T6794] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.396659][ T6794] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.402643][ T6794] ? prandom_u32_state+0xe/0x170 [ 59.407710][ T6794] ? __brelse+0x84/0xa0 [ 59.411865][ T6794] ? __ext4_new_inode+0x144/0x55e0 [ 59.416975][ T6794] ext4_getblk+0xad/0x520 [ 59.421309][ T6794] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.427014][ T6794] ? ext4_free_inode+0x1700/0x1700 [ 59.432107][ T6794] ext4_bread+0x7c/0x380 [ 59.436329][ T6794] ? ext4_getblk+0x520/0x520 [ 59.440897][ T6794] ? dquot_get_next_dqblk+0x180/0x180 [ 59.446273][ T6794] ext4_append+0x153/0x360 [ 59.450684][ T6794] ext4_mkdir+0x5e0/0xdf0 [ 59.454997][ T6794] ? ext4_rmdir+0xde0/0xde0 [ 59.459495][ T6794] ? security_inode_permission+0xc4/0xf0 [ 59.465121][ T6794] vfs_mkdir+0x419/0x690 [ 59.469345][ T6794] do_mkdirat+0x21e/0x280 [ 59.473674][ T6794] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.478516][ T6794] ? do_syscall_64+0x1c/0xe0 [ 59.483086][ T6794] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.489133][ T6794] do_syscall_64+0x60/0xe0 [ 59.493540][ T6794] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.499422][ T6794] RIP: 0033:0x4b02a0 [ 59.503289][ T6794] Code: Bad RIP value. [ 59.507557][ T6794] RSP: 002b:000000c0000e34b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 59.516122][ T6794] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 59.524080][ T6794] RDX: 00000000000001c0 RSI: 000000c000026a80 RDI: ffffffffffffff9c [ 59.532032][ T6794] RBP: 000000c0000e3510 R08: 0000000000000000 R09: 0000000000000000 [ 59.540012][ T6794] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 59.547984][ T6794] R13: 0000000000000055 R14: 0000000000000054 R15: 0000000000000100 [ 59.575546][ T6805] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6805 [ 59.584967][ T6805] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.590844][ T6805] CPU: 0 PID: 6805 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 59.599055][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.609103][ T6805] Call Trace: [ 59.612385][ T6805] dump_stack+0x18f/0x20d [ 59.616703][ T6805] check_preemption_disabled+0x20d/0x220 [ 59.622349][ T6805] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.627466][ T6805] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.632918][ T6805] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.638635][ T6805] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.643907][ T6805] ? ext4_ext_release+0x10/0x10 [ 59.648746][ T6805] ? down_write_killable+0x170/0x170 [ 59.654008][ T6805] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.659492][ T6805] ext4_map_blocks+0x4cb/0x1640 [ 59.664338][ T6805] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.669615][ T6805] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.675157][ T6805] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.681114][ T6805] ? prandom_u32_state+0xe/0x170 [ 59.686044][ T6805] ? __brelse+0x84/0xa0 [ 59.690175][ T6805] ? __ext4_new_inode+0x144/0x55e0 [ 59.695369][ T6805] ext4_getblk+0xad/0x520 [ 59.699687][ T6805] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 59.705410][ T6805] ? ext4_free_inode+0x1700/0x1700 [ 59.710511][ T6805] ext4_bread+0x7c/0x380 [ 59.714733][ T6805] ? ext4_getblk+0x520/0x520 [ 59.719328][ T6805] ? dquot_get_next_dqblk+0x180/0x180 [ 59.724689][ T6805] ext4_append+0x153/0x360 [ 59.729101][ T6805] ext4_mkdir+0x5e0/0xdf0 [ 59.733414][ T6805] ? ext4_rmdir+0xde0/0xde0 [ 59.737898][ T6805] ? security_inode_permission+0xc4/0xf0 [ 59.743511][ T6805] vfs_mkdir+0x419/0x690 [ 59.747746][ T6805] do_mkdirat+0x21e/0x280 [ 59.752063][ T6805] ? __ia32_sys_mknod+0xb0/0xb0 [ 59.756904][ T6805] ? do_syscall_64+0x1c/0xe0 [ 59.761485][ T6805] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.767479][ T6805] do_syscall_64+0x60/0xe0 [ 59.771887][ T6805] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.777781][ T6805] RIP: 0033:0x45bee7 [ 59.781823][ T6805] Code: Bad RIP value. [ 59.785877][ T6805] RSP: 002b:00007ffe23033858 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 59.794267][ T6805] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 59.802218][ T6805] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffe23033a30 [ 59.810446][ T6805] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 0000000000002f00 [ 59.818772][ T6805] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 59.826745][ T6805] R13: 00007ffe23033a30 R14: 8421084210842109 R15: 00007ffe23033a3c [ 59.951834][ T6807] IPVS: ftp: loaded support on port[0] = 21 [ 59.990434][ T6807] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6807 [ 59.999970][ T6807] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.005987][ T6807] CPU: 1 PID: 6807 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.014227][ T6807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.024462][ T6807] Call Trace: [ 60.027756][ T6807] dump_stack+0x18f/0x20d [ 60.032083][ T6807] check_preemption_disabled+0x20d/0x220 [ 60.037698][ T6807] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.042916][ T6807] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.048558][ T6807] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.054286][ T6807] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.059790][ T6807] ? ext4_ext_release+0x10/0x10 [ 60.064659][ T6807] ? down_write_killable+0x170/0x170 [ 60.069924][ T6807] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.075378][ T6807] ext4_map_blocks+0x4cb/0x1640 [ 60.080212][ T6807] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.085385][ T6807] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.091460][ T6807] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.097453][ T6807] ? prandom_u32_state+0xe/0x170 [ 60.102377][ T6807] ? __brelse+0x84/0xa0 [ 60.106516][ T6807] ? __ext4_new_inode+0x144/0x55e0 [ 60.111617][ T6807] ext4_getblk+0xad/0x520 [ 60.115940][ T6807] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.121663][ T6807] ? ext4_free_inode+0x1700/0x1700 [ 60.126775][ T6807] ext4_bread+0x7c/0x380 [ 60.131017][ T6807] ? ext4_getblk+0x520/0x520 [ 60.135591][ T6807] ? dquot_get_next_dqblk+0x180/0x180 [ 60.140948][ T6807] ext4_append+0x153/0x360 [ 60.145517][ T6807] ext4_mkdir+0x5e0/0xdf0 [ 60.149868][ T6807] ? ext4_rmdir+0xde0/0xde0 [ 60.154364][ T6807] ? security_inode_permission+0xc4/0xf0 [ 60.159984][ T6807] vfs_mkdir+0x419/0x690 [ 60.164215][ T6807] do_mkdirat+0x21e/0x280 [ 60.168533][ T6807] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.173365][ T6807] ? do_syscall_64+0x1c/0xe0 [ 60.177945][ T6807] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.184000][ T6807] do_syscall_64+0x60/0xe0 [ 60.188830][ T6807] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.194697][ T6807] RIP: 0033:0x45bee7 [ 60.198690][ T6807] Code: Bad RIP value. [ 60.202772][ T6807] RSP: 002b:00007ffe23033748 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.211170][ T6807] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 60.219170][ T6807] RDX: 00007ffe23033793 RSI: 00000000000001ff RDI: 00007ffe23033790 [ 60.227160][ T6807] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 60.235112][ T6807] R10: 0000000000000064 R11: 0000000000000206 R12: 00000000004185d0 [ 60.243071][ T6807] R13: 00007ffe23033780 R14: 0000000000000000 R15: 00007ffe23033790 [ 60.294998][ T6807] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6807 [ 60.304552][ T6807] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.310455][ T6807] CPU: 1 PID: 6807 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 60.318689][ T6807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.328746][ T6807] Call Trace: [ 60.332047][ T6807] dump_stack+0x18f/0x20d [ 60.336393][ T6807] check_preemption_disabled+0x20d/0x220 [ 60.342037][ T6807] ext4_mb_new_blocks+0xa4d/0x3b70 [ 60.347168][ T6807] ? ext4_ext_search_right+0x2ca/0xb20 [ 60.352641][ T6807] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 60.358372][ T6807] ext4_ext_map_blocks+0x201b/0x33e0 [ 60.363669][ T6807] ? ext4_ext_release+0x10/0x10 [ 60.368541][ T6807] ? down_write_killable+0x170/0x170 [ 60.373812][ T6807] ? ext4_es_lookup_extent+0x41d/0xd10 [ 60.379275][ T6807] ext4_map_blocks+0x4cb/0x1640 [ 60.384109][ T6807] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 60.389286][ T6807] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.394807][ T6807] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.400762][ T6807] ? prandom_u32_state+0xe/0x170 [ 60.405679][ T6807] ? __brelse+0x84/0xa0 [ 60.409811][ T6807] ? __ext4_new_inode+0x144/0x55e0 [ 60.414903][ T6807] ext4_getblk+0xad/0x520 [ 60.419221][ T6807] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 60.424935][ T6807] ? ext4_free_inode+0x1700/0x1700 [ 60.430138][ T6807] ext4_bread+0x7c/0x380 [ 60.434358][ T6807] ? ext4_getblk+0x520/0x520 [ 60.438942][ T6807] ? dquot_get_next_dqblk+0x180/0x180 [ 60.444319][ T6807] ext4_append+0x153/0x360 [ 60.448715][ T6807] ext4_mkdir+0x5e0/0xdf0 [ 60.453037][ T6807] ? ext4_rmdir+0xde0/0xde0 [ 60.457529][ T6807] ? security_inode_permission+0xc4/0xf0 [ 60.463142][ T6807] vfs_mkdir+0x419/0x690 [ 60.467434][ T6807] do_mkdirat+0x21e/0x280 [ 60.471757][ T6807] ? __ia32_sys_mknod+0xb0/0xb0 [ 60.476597][ T6807] ? do_syscall_64+0x1c/0xe0 [ 60.481299][ T6807] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.487272][ T6807] do_syscall_64+0x60/0xe0 [ 60.491675][ T6807] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.497721][ T6807] RIP: 0033:0x45bee7 [ 60.501593][ T6807] Code: Bad RIP value. [ 60.505719][ T6807] RSP: 002b:00007ffe23033748 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 60.514119][ T6807] RAX: ffffffffffffffda RBX: 000000000000eb77 RCX: 000000000045bee7 [ 60.522074][ T6807] RDX: 00007ffe23033793 RSI: 00000000000001ff RDI: 00007ffe23033790 [ 60.530148][ T6807] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 60.538108][ T6807] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000003 [ 60.546075][ T6807] R13: 00007ffe23033780 R14: 000000000000eb63 R15: 00007ffe23033790 2020/06/14 23:57:33 building call list... [ 60.832418][ T511] tipc: TX() has been purged, node left! [ 61.008510][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 61.018635][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.024720][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.032600][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.042659][ T1154] Call Trace: [ 61.045964][ T1154] dump_stack+0x18f/0x20d [ 61.050478][ T1154] check_preemption_disabled+0x20d/0x220 [ 61.057239][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.062348][ T1154] ? ext4_find_extent+0x81a/0xad0 [ 61.067377][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.072844][ T1154] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 61.079350][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.084653][ T1154] ? ext4_ext_release+0x10/0x10 [ 61.089531][ T1154] ? down_write_killable+0x170/0x170 [ 61.094973][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.100467][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 61.105357][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.110595][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.116303][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.122292][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.127764][ T1154] ext4_writepages+0x1a7b/0x33c0 [ 61.132727][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.138848][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.144578][ T1154] ? do_writepages+0xfa/0x2a0 [ 61.149316][ T1154] do_writepages+0xfa/0x2a0 [ 61.154841][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 61.160585][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 61.165624][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 61.170842][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 61.175695][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.181415][ T1154] ? collapse_file+0x35a2/0x4330 [ 61.186369][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.192478][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.198552][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.204650][ T1154] collapse_file+0x35ac/0x4330 [ 61.209460][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 61.214840][ T1154] ? khugepaged+0x2506/0x3fc0 [ 61.219554][ T1154] khugepaged+0x3041/0x3fc0 [ 61.224874][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.230531][ T1154] ? lock_downgrade+0x840/0x840 [ 61.235562][ T1154] ? finish_wait+0x260/0x260 [ 61.240152][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.245959][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.251967][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 61.257000][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.262650][ T1154] kthread+0x3b5/0x4a0 [ 61.266724][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.272441][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.278165][ T1154] ret_from_fork+0x1f/0x30 [ 61.345783][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 61.354919][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.360842][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.368826][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.378875][ T1154] Call Trace: [ 61.382169][ T1154] dump_stack+0x18f/0x20d [ 61.386503][ T1154] check_preemption_disabled+0x20d/0x220 [ 61.396070][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.401210][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.406673][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.412833][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.418414][ T1154] ? ext4_ext_release+0x10/0x10 [ 61.423423][ T1154] ? down_write_killable+0x170/0x170 [ 61.428756][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.434232][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 61.439092][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.444298][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.449842][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.455996][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.461481][ T1154] ext4_writepages+0x1a7b/0x33c0 [ 61.466447][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.472130][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.477967][ T1154] ? do_writepages+0xfa/0x2a0 [ 61.482645][ T1154] do_writepages+0xfa/0x2a0 [ 61.487154][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 61.494259][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 61.499280][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 61.504476][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 61.510021][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.515744][ T1154] ? collapse_file+0x35a2/0x4330 [ 61.520678][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.527101][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.532296][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.538283][ T1154] collapse_file+0x35ac/0x4330 [ 61.543088][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 61.548473][ T1154] ? khugepaged+0x2506/0x3fc0 [ 61.553165][ T1154] khugepaged+0x3041/0x3fc0 [ 61.558567][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.564251][ T1154] ? lock_downgrade+0x840/0x840 [ 61.569111][ T1154] ? finish_wait+0x260/0x260 [ 61.573710][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.579518][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.585503][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 61.590528][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.596184][ T1154] kthread+0x3b5/0x4a0 [ 61.600255][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.605993][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.611714][ T1154] ret_from_fork+0x1f/0x30 [ 61.662155][ T1154] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1154 [ 61.671212][ T1154] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.677239][ T1154] CPU: 0 PID: 1154 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 61.685137][ T1154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.695295][ T1154] Call Trace: [ 61.698588][ T1154] dump_stack+0x18f/0x20d [ 61.702936][ T1154] check_preemption_disabled+0x20d/0x220 [ 61.708566][ T1154] ext4_mb_new_blocks+0xa4d/0x3b70 [ 61.713684][ T1154] ? ext4_ext_search_right+0x2ca/0xb20 [ 61.719165][ T1154] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 61.726195][ T1154] ext4_ext_map_blocks+0x201b/0x33e0 [ 61.731495][ T1154] ? ext4_ext_release+0x10/0x10 [ 61.736385][ T1154] ? down_write_killable+0x170/0x170 [ 61.741688][ T1154] ? ext4_es_lookup_extent+0x41d/0xd10 [ 61.747170][ T1154] ext4_map_blocks+0x4cb/0x1640 [ 61.752044][ T1154] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 61.757260][ T1154] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 61.762811][ T1154] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.768797][ T1154] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 61.774334][ T1154] ext4_writepages+0x1a7b/0x33c0 [ 61.779296][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.784974][ T1154] ? __ext4_mark_inode_dirty+0x940/0x940 [ 61.790608][ T1154] ? do_writepages+0xfa/0x2a0 [ 61.795320][ T1154] do_writepages+0xfa/0x2a0 [ 61.799828][ T1154] ? page_writeback_cpu_online+0x10/0x10 [ 61.805547][ T1154] ? do_raw_spin_lock+0x120/0x2d0 [ 61.810568][ T1154] ? do_raw_spin_unlock+0x171/0x260 [ 61.815774][ T1154] ? _raw_spin_unlock+0x24/0x40 [ 61.820631][ T1154] __filemap_fdatawrite_range+0x2aa/0x390 [ 61.826347][ T1154] ? collapse_file+0x35a2/0x4330 [ 61.831299][ T1154] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 61.837391][ T1154] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.842591][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.848581][ T1154] collapse_file+0x35ac/0x4330 [ 61.853548][ T1154] ? collapse_huge_page+0x4350/0x4350 [ 61.858918][ T1154] ? khugepaged+0x2506/0x3fc0 [ 61.863617][ T1154] khugepaged+0x3041/0x3fc0 [ 61.872140][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.877774][ T1154] ? lock_downgrade+0x840/0x840 [ 61.882627][ T1154] ? finish_wait+0x260/0x260 [ 61.887310][ T1154] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 61.897289][ T1154] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 61.903275][ T1154] ? __kthread_parkme+0x13f/0x1e0 [ 61.908733][ T1154] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 61.914363][ T1154] kthread+0x3b5/0x4a0 [ 61.918463][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.924180][ T1154] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.929991][ T1154] ret_from_fork+0x1f/0x30 executing program [ 62.174257][ T511] ================================================================== [ 62.182523][ T511] BUG: KASAN: use-after-free in afs_wake_up_async_call+0x6aa/0x770 [ 62.190418][ T511] Write of size 1 at addr ffff8880a61ef1e4 by task kworker/u4:4/511 [ 62.203088][ T511] [ 62.205421][ T511] CPU: 0 PID: 511 Comm: kworker/u4:4 Not tainted 5.7.0-syzkaller #0 [ 62.214010][ T511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.224147][ T511] Workqueue: netns cleanup_net [ 62.228961][ T511] Call Trace: [ 62.232275][ T511] dump_stack+0x18f/0x20d [ 62.236650][ T511] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.242207][ T511] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.247766][ T511] ? afs_put_call+0xa40/0xa40 [ 62.252463][ T511] print_address_description.constprop.0.cold+0xd3/0x413 [ 62.259546][ T511] ? vprintk_func+0x97/0x1a6 [ 62.264253][ T511] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.269822][ T511] kasan_report.cold+0x1f/0x37 [ 62.274610][ T511] ? rcu_read_lock_held+0x81/0xb0 [ 62.279669][ T511] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.285257][ T511] afs_wake_up_async_call+0x6aa/0x770 [ 62.291746][ T511] ? afs_close_socket+0x320/0x320 [ 62.296798][ T511] ? afs_put_call+0xa40/0xa40 [ 62.301493][ T511] rxrpc_notify_socket+0x1db/0x5d0 [ 62.306598][ T511] ? afs_put_call+0xa40/0xa40 [ 62.311256][ T511] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 62.317695][ T511] rxrpc_call_completed+0xca/0xf0 [ 62.323865][ T511] rxrpc_discard_prealloc+0x781/0xab0 [ 62.329270][ T511] ? lock_sock_nested+0x94/0x110 [ 62.334357][ T511] rxrpc_listen+0x147/0x360 [ 62.338869][ T511] afs_close_socket+0x95/0x320 [ 62.343620][ T511] ? afs_purge_servers+0x16d/0x300 [ 62.349151][ T511] ? afs_rx_discard_new_call+0x50/0x50 [ 62.354628][ T511] ? init_wait_var_entry+0x200/0x200 [ 62.359899][ T511] ? rcu_read_lock_held_common+0xa0/0xa0 [ 62.365526][ T511] ? check_preemption_disabled+0x38/0x220 [ 62.371253][ T511] afs_net_exit+0x1bc/0x310 [ 62.376546][ T511] ? afs_net_init+0xe30/0xe30 [ 62.382005][ T511] ops_exit_list.isra.0+0xa8/0x150 [ 62.387104][ T511] cleanup_net+0x511/0xa50 [ 62.391517][ T511] ? unregister_pernet_device+0x70/0x70 [ 62.397072][ T511] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.403040][ T511] process_one_work+0x965/0x1690 [ 62.407980][ T511] ? lock_release+0x800/0x800 [ 62.412655][ T511] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.418017][ T511] ? rwlock_bug.part.0+0x90/0x90 [ 62.422957][ T511] worker_thread+0x96/0xe10 [ 62.427481][ T511] ? process_one_work+0x1690/0x1690 [ 62.432674][ T511] kthread+0x3b5/0x4a0 [ 62.436730][ T511] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.442444][ T511] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 62.448695][ T511] ret_from_fork+0x1f/0x30 [ 62.453111][ T511] [ 62.455425][ T511] Allocated by task 6807: [ 62.459754][ T511] save_stack+0x1b/0x40 [ 62.464196][ T511] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 62.470909][ T511] kmem_cache_alloc_trace+0x153/0x7d0 [ 62.476989][ T511] afs_alloc_call+0x55/0x630 [ 62.481593][ T511] afs_charge_preallocation+0xe9/0x2d0 [ 62.488600][ T511] afs_open_socket+0x292/0x360 [ 62.493378][ T511] afs_net_init+0xa6c/0xe30 [ 62.500243][ T511] ops_init+0xaf/0x420 [ 62.504518][ T511] setup_net+0x2de/0x860 [ 62.509438][ T511] copy_net_ns+0x293/0x590 [ 62.513845][ T511] create_new_namespaces+0x3fb/0xb30 [ 62.519127][ T511] unshare_nsproxy_namespaces+0xbd/0x1f0 [ 62.524745][ T511] ksys_unshare+0x43d/0x8e0 [ 62.529257][ T511] __x64_sys_unshare+0x2d/0x40 [ 62.534149][ T511] do_syscall_64+0x60/0xe0 [ 62.538579][ T511] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.544452][ T511] [ 62.546802][ T511] Freed by task 511: [ 62.550746][ T511] save_stack+0x1b/0x40 [ 62.555491][ T511] __kasan_slab_free+0xf7/0x140 [ 62.560345][ T511] kfree+0x109/0x2b0 [ 62.564360][ T511] afs_put_call+0x585/0xa40 [ 62.568848][ T511] rxrpc_discard_prealloc+0x764/0xab0 [ 62.574230][ T511] rxrpc_listen+0x147/0x360 [ 62.578850][ T511] afs_close_socket+0x95/0x320 [ 62.583683][ T511] afs_net_exit+0x1bc/0x310 [ 62.588192][ T511] ops_exit_list.isra.0+0xa8/0x150 [ 62.593744][ T511] cleanup_net+0x511/0xa50 [ 62.598143][ T511] process_one_work+0x965/0x1690 [ 62.603063][ T511] worker_thread+0x96/0xe10 [ 62.607636][ T511] kthread+0x3b5/0x4a0 [ 62.611714][ T511] ret_from_fork+0x1f/0x30 [ 62.616111][ T511] [ 62.618557][ T511] The buggy address belongs to the object at ffff8880a61ef000 [ 62.618557][ T511] which belongs to the cache kmalloc-1k of size 1024 [ 62.632659][ T511] The buggy address is located 484 bytes inside of [ 62.632659][ T511] 1024-byte region [ffff8880a61ef000, ffff8880a61ef400) [ 62.646134][ T511] The buggy address belongs to the page: [ 62.651763][ T511] page:ffffea0002987bc0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 [ 62.660850][ T511] flags: 0xfffe0000000200(slab) [ 62.665707][ T511] raw: 00fffe0000000200 ffffea00028e8488 ffffea00027b0408 ffff8880aa000c40 [ 62.674293][ T511] raw: 0000000000000000 ffff8880a61ef000 0000000100000002 0000000000000000 [ 62.682863][ T511] page dumped because: kasan: bad access detected [ 62.689269][ T511] [ 62.691587][ T511] Memory state around the buggy address: [ 62.697384][ T511] ffff8880a61ef080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.705506][ T511] ffff8880a61ef100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.713711][ T511] >ffff8880a61ef180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.721753][ T511] ^ [ 62.729116][ T511] ffff8880a61ef200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.737244][ T511] ffff8880a61ef280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.745308][ T511] ================================================================== [ 62.753351][ T511] Disabling lock debugging due to kernel taint [ 62.759582][ T511] Kernel panic - not syncing: panic_on_warn set ... [ 62.766177][ T511] CPU: 0 PID: 511 Comm: kworker/u4:4 Tainted: G B 5.7.0-syzkaller #0 [ 62.775544][ T511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.785607][ T511] Workqueue: netns cleanup_net [ 62.790359][ T511] Call Trace: [ 62.794326][ T511] dump_stack+0x18f/0x20d [ 62.798635][ T511] ? afs_wake_up_async_call+0x5f0/0x770 [ 62.804165][ T511] ? afs_put_call+0xa40/0xa40 [ 62.809093][ T511] panic+0x2e3/0x75c [ 62.812965][ T511] ? __warn_printk+0xf3/0xf3 [ 62.817568][ T511] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 62.823802][ T511] ? trace_hardirqs_on+0x55/0x220 [ 62.828833][ T511] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.834379][ T511] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.839917][ T511] ? afs_put_call+0xa40/0xa40 [ 62.844588][ T511] end_report+0x4d/0x53 [ 62.848736][ T511] kasan_report.cold+0xd/0x37 [ 62.853408][ T511] ? rcu_read_lock_held+0x81/0xb0 [ 62.858429][ T511] ? afs_wake_up_async_call+0x6aa/0x770 [ 62.863983][ T511] afs_wake_up_async_call+0x6aa/0x770 [ 62.869333][ T511] ? afs_close_socket+0x320/0x320 [ 62.874405][ T511] ? afs_put_call+0xa40/0xa40 [ 62.879074][ T511] rxrpc_notify_socket+0x1db/0x5d0 [ 62.884169][ T511] ? afs_put_call+0xa40/0xa40 [ 62.888839][ T511] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 62.895234][ T511] rxrpc_call_completed+0xca/0xf0 [ 62.900261][ T511] rxrpc_discard_prealloc+0x781/0xab0 [ 62.905630][ T511] ? lock_sock_nested+0x94/0x110 [ 62.910551][ T511] rxrpc_listen+0x147/0x360 [ 62.915138][ T511] afs_close_socket+0x95/0x320 [ 62.919901][ T511] ? afs_purge_servers+0x16d/0x300 [ 62.924995][ T511] ? afs_rx_discard_new_call+0x50/0x50 [ 62.930432][ T511] ? init_wait_var_entry+0x200/0x200 [ 62.935696][ T511] ? rcu_read_lock_held_common+0xa0/0xa0 [ 62.941312][ T511] ? check_preemption_disabled+0x38/0x220 [ 62.947084][ T511] afs_net_exit+0x1bc/0x310 [ 62.951592][ T511] ? afs_net_init+0xe30/0xe30 [ 62.956328][ T511] ops_exit_list.isra.0+0xa8/0x150 [ 62.961509][ T511] cleanup_net+0x511/0xa50 [ 62.966008][ T511] ? unregister_pernet_device+0x70/0x70 [ 62.971539][ T511] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 62.977531][ T511] process_one_work+0x965/0x1690 [ 62.982506][ T511] ? lock_release+0x800/0x800 [ 62.987158][ T511] ? pwq_dec_nr_in_flight+0x310/0x310 [ 62.992521][ T511] ? rwlock_bug.part.0+0x90/0x90 [ 62.997559][ T511] worker_thread+0x96/0xe10 [ 63.002056][ T511] ? process_one_work+0x1690/0x1690 [ 63.007228][ T511] kthread+0x3b5/0x4a0 [ 63.011271][ T511] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.017922][ T511] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 63.023641][ T511] ret_from_fork+0x1f/0x30 [ 63.029351][ T511] Kernel Offset: disabled [ 63.033674][ T511] Rebooting in 86400 seconds..