[ 459.159288] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.164275] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.175818] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.221064] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.242929] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.322996] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.372517] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.375257] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.390029] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.411195] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.413011] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.540187] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.552580] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.570698] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.577603] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.586117] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.607057] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.740517] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.752688] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.774338] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.788742] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.794309] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.823511] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.933283] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.954756] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.961364] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.981508] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 459.982856] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.010357] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.126800] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.172458] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.190443] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.204605] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.220750] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.221757] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.337278] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.373174] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.385575] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.389129] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.425068] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.442759] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.529204] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.556176] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.571840] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.586189] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.587675] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.624872] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.739380] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.759833] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.766814] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.771948] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.787364] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.823456] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.865068] kauditd_printk_skb: 141 callbacks suppressed [ 460.865073] audit: type=1804 audit(1595673743.965:12494): pid=31056 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir192637565/syzkaller.nwqJSk/2082/bus/file0" dev="overlay" ino=175560 res=1 [ 460.918291] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 460.932229] audit: type=1804 audit(1595673744.035:12495): pid=31068 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir738121985/syzkaller.PO436o/2082/bus/file0" dev="overlay" ino=175034 res=1 [ 460.985300] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.023202] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.037775] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.046763] audit: type=1804 audit(1595673744.125:12496): pid=31074 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir868000278/syzkaller.yKqrze/2094/bus/file0" dev="overlay" ino=175590 res=1 [ 461.054043] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.116749] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.128890] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.142088] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.192281] audit: type=1804 audit(1595673744.205:12497): pid=31088 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir861756855/syzkaller.kTzgTp/2090/bus/file0" dev="overlay" ino=175053 res=1 [ 461.217809] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.230100] audit: type=1804 audit(1595673744.205:12498): pid=31085 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir053858730/syzkaller.4HyPYo/2084/bus/file0" dev="overlay" ino=175055 res=1 [ 461.263734] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.309297] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.313328] audit: type=1804 audit(1595673744.215:12499): pid=31089 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir517868984/syzkaller.Bd9Zgj/2089/bus/file0" dev="overlay" ino=175602 res=1 [ 461.351868] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.351895] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.375110] overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection. [ 461.407796] audit: type=1804 audit(1595673744.275:12500): pid=31095 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir738121985/syzkaller.PO436o/2083/bus/file0" dev="overlay" ino=175072 res=1 [ 461.434490] audit: type=1804 audit(1595673744.275:12501): pid=31096 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir868000278/syzkaller.yKqrze/2095/bus/file0" dev="overlay" ino=175073 res=1 [ 461.465058] audit: type=1804 audit(1595673744.275:12502): pid=31098 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir192637565/syzkaller.nwqJSk/2083/bus/file0" dev="overlay" ino=175065 res=1 [ 461.491162] audit: type=1804 audit(1595673744.335:12503): pid=31102 uid=0 auid=0 ses=8 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir861756855/syzkaller.kTzgTp/2091/bus/file0" dev="overlay" ino=175082 res=1 [ 461.599361] syz-executor.1 (6433) used greatest stack depth: 22968 bytes left [ 462.109623] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 462.116531] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 462.124022] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 462.130958] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 462.140312] device bridge_slave_1 left promiscuous mode [ 462.146009] bridge0: port 2(bridge_slave_1) entered disabled state [ 462.209375] device bridge_slave_0 left promiscuous mode [ 462.214848] bridge0: port 1(bridge_slave_0) entered disabled state [ 462.272421] device veth1_macvtap left promiscuous mode [ 462.278267] device veth0_macvtap left promiscuous mode [ 462.283603] device veth1_vlan left promiscuous mode [ 462.289678] device veth0_vlan left promiscuous mode [ 462.402596] device hsr_slave_1 left promiscuous mode [ 462.460398] device hsr_slave_0 left promiscuous mode [ 462.524266] team0 (unregistering): Port device team_slave_1 removed [ 462.533339] team0 (unregistering): Port device team_slave_0 removed [ 462.543234] bond0 (unregistering): Releasing backup interface bond_slave_1 [ 462.601141] bond0 (unregistering): Releasing backup interface bond_slave_0 [ 462.655133] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.0.32' (ECDSA) to the list of known hosts. [ 464.322165] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 464.329074] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 464.336343] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 464.343143] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 464.354972] device bridge_slave_1 left promiscuous mode [ 464.361026] bridge0: port 2(bridge_slave_1) entered disabled state [ 464.427767] device bridge_slave_0 left promiscuous mode [ 464.433244] bridge0: port 1(bridge_slave_0) entered disabled state [ 464.510333] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 464.517080] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 464.524190] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 464.530973] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 464.538537] device bridge_slave_1 left promiscuous mode [ 464.543950] bridge0: port 2(bridge_slave_1) entered disabled state [ 464.576908] device bridge_slave_0 left promiscuous mode [ 464.584434] bridge0: port 1(bridge_slave_0) entered disabled state [ 464.639897] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 464.646645] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 464.653835] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 464.660621] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 464.667538] kasan: CONFIG_KASAN_INLINE enabled [ 464.672235] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 464.680162] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 464.686464] CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 4.19.0-syzkaller #0 [ 464.693908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 464.703344] Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet [ 464.710437] RIP: 0010:batadv_iv_ogm_queue_add+0x9a/0xf00 [ 464.715858] Code: 44 89 8d 64 ff ff ff c7 02 f1 f1 f1 f1 c7 42 04 04 f2 f2 f2 48 89 fa 65 48 8b 0c 25 28 00 00 00 48 89 4d d0 31 c9 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 25 0c 00 00 [ 464.734730] RSP: 0018:ffff8800aa3bfac8 EFLAGS: 00010246 [ 464.740091] RAX: dffffc0000000000 RBX: 000000000000003c RCX: 0000000000000000 [ 464.747398] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 464.754644] RBP: ffff8800aa3bfbd8 R08: ffff88009009b540 R09: 0000000000000001 [ 464.761890] R10: ffffed0015477f8f R11: 0000000000000003 R12: ffff88009a30e880 [ 464.769140] R13: dffffc0000000000 R14: ffffed00120136b6 R15: ffff88009009b568 [ 464.776386] FS: 0000000000000000(0000) GS:ffff8800aea00000(0000) knlGS:0000000000000000 [ 464.784586] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 464.790442] CR2: 00007f0caffaf000 CR3: 00000000961ad000 CR4: 00000000001406f0 [ 464.797688] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 464.804929] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 464.812170] Call Trace: [ 464.814735] ? batadv_iv_ogm_iface_enable+0x370/0x370 [ 464.820066] ? lock_acquire+0x180/0x3a0 [ 464.824044] ? kasan_check_read+0x11/0x20 [ 464.828167] batadv_iv_ogm_schedule+0xb47/0xe80 [ 464.832864] ? batadv_iv_ogm_queue_add+0xf00/0xf00 [ 464.837791] batadv_iv_send_outstanding_bat_ogm_packet+0x4a2/0x7a0 [ 464.844138] ? rcu_lockdep_current_cpu_online+0xe5/0x130 [ 464.849592] process_one_work+0x7b9/0x15a0 [ 464.853812] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 464.858465] ? lock_acquire+0x180/0x3a0 [ 464.862450] ? _raw_spin_lock_irq+0x3c/0x90 [ 464.866745] worker_thread+0x85/0xb60 [ 464.870552] ? __kthread_parkme+0x47/0x190 [ 464.874780] kthread+0x324/0x3e0 [ 464.878123] ? process_one_work+0x15a0/0x15a0 [ 464.882591] ? kthread_park+0x120/0x120 [ 464.886544] ret_from_fork+0x24/0x30 [ 464.890229] Modules linked in: [ 464.893809] ---[ end trace 7030f97364dda0be ]--- [ 464.898583] RIP: 0010:batadv_iv_ogm_queue_add+0x9a/0xf00 [ 464.904017] Code: 44 89 8d 64 ff ff ff c7 02 f1 f1 f1 f1 c7 42 04 04 f2 f2 f2 48 89 fa 65 48 8b 0c 25 28 00 00 00 48 89 4d d0 31 c9 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 25 0c 00 00 [ 464.922941] RSP: 0018:ffff8800aa3bfac8 EFLAGS: 00010246 [ 464.928343] RAX: dffffc0000000000 RBX: 000000000000003c RCX: 0000000000000000 [ 464.935594] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 464.942872] RBP: ffff8800aa3bfbd8 R08: ffff88009009b540 R09: 0000000000000001 [ 464.950156] R10: ffffed0015477f8f R11: 0000000000000003 R12: ffff88009a30e880 [ 464.957524] R13: dffffc0000000000 R14: ffffed00120136b6 R15: ffff88009009b568 [ 464.964778] FS: 0000000000000000(0000) GS:ffff8800aea00000(0000) knlGS:0000000000000000 [ 464.973014] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 464.978918] CR2: 00007f0caffaf000 CR3: 00000000961ad000 CR4: 00000000001406f0 [ 464.986176] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 464.993473] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 465.000766] Kernel panic - not syncing: Fatal exception [ 465.007652] Kernel Offset: disabled [ 465.011265] Rebooting in 86400 seconds..