[ 61.165544][ T26] audit: type=1800 audit(1572081280.727:25): pid=8416 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 61.187400][ T26] audit: type=1800 audit(1572081280.737:26): pid=8416 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 61.207946][ T26] audit: type=1800 audit(1572081280.737:27): pid=8416 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 61.642930][ T8482] sshd (8482) used greatest stack depth: 23000 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.134' (ECDSA) to the list of known hosts. syzkaller login: [ 72.797723][ T8570] IPVS: ftp: loaded support on port[0] = 21 [ 72.858634][ T8570] chnl_net:caif_netlink_parms(): no params data found [ 72.884160][ T8570] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.892392][ T8570] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.900085][ T8570] device bridge_slave_0 entered promiscuous mode [ 72.907938][ T8570] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.915004][ T8570] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.922805][ T8570] device bridge_slave_1 entered promiscuous mode [ 72.938765][ T8570] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.949722][ T8570] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.967683][ T8570] team0: Port device team_slave_0 added [ 72.974643][ T8570] team0: Port device team_slave_1 added [ 73.028346][ T8570] device hsr_slave_0 entered promiscuous mode [ 73.086296][ T8570] device hsr_slave_1 entered promiscuous mode [ 73.225040][ T8570] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.232307][ T8570] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.240162][ T8570] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.247289][ T8570] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.398621][ T8570] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.451720][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.488220][ T3015] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.517308][ T3015] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.536846][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.580698][ T8570] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.611985][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.626500][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.633582][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.691450][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.707884][ T3015] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.714965][ T3015] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.748132][ T3015] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.787596][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.797052][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.805528][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.853638][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.876739][ T8570] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.934621][ T8570] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 74.045562][ T8609] ------------[ cut here ]------------ [ 74.051174][ T8609] WARNING: CPU: 0 PID: 8609 at include/net/sock.h:666 smc_unhash_sk+0x1ea/0x260 [ 74.060185][ T8609] Kernel panic - not syncing: panic_on_warn set ... [ 74.066764][ T8609] CPU: 0 PID: 8609 Comm: syz-executor862 Not tainted 5.4.0-rc4+ #0 [ 74.074635][ T8609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.084669][ T8609] Call Trace: [ 74.087945][ T8609] dump_stack+0x172/0x1f0 [ 74.092254][ T8609] ? smc_unhash_sk+0x170/0x260 [ 74.096999][ T8609] panic+0x2e3/0x75c [ 74.100869][ T8609] ? add_taint.cold+0x16/0x16 [ 74.105574][ T8609] ? printk+0xba/0xed [ 74.109544][ T8609] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 74.114981][ T8609] ? __warn.cold+0x14/0x35 [ 74.119397][ T8609] ? __warn+0xd9/0x1d0 [ 74.123446][ T8609] ? smc_unhash_sk+0x1ea/0x260 [ 74.128188][ T8609] __warn.cold+0x2f/0x35 [ 74.132408][ T8609] ? report_bug.cold+0x63/0xad [ 74.137149][ T8609] ? smc_unhash_sk+0x1ea/0x260 [ 74.141890][ T8609] report_bug+0x289/0x300 [ 74.146207][ T8609] do_error_trap+0x11b/0x200 [ 74.150787][ T8609] do_invalid_op+0x37/0x50 [ 74.155177][ T8609] ? smc_unhash_sk+0x1ea/0x260 [ 74.159919][ T8609] invalid_op+0x23/0x30 [ 74.164053][ T8609] RIP: 0010:smc_unhash_sk+0x1ea/0x260 [ 74.169416][ T8609] Code: ff ff ff ff e8 77 3c 8b fe e8 52 57 5d fa 4c 89 ef e8 aa 82 38 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 36 57 5d fa <0f> 0b eb 86 4c 89 e7 e8 ca b5 98 fa e9 5f ff ff ff e8 e0 b5 98 fa [ 74.189000][ T8609] RSP: 0018:ffff8880a906fd00 EFLAGS: 00010293 [ 74.195055][ T8609] RAX: ffff888090f926c0 RBX: ffff8880a04b9240 RCX: ffffffff8715c9fe [ 74.203006][ T8609] RDX: 0000000000000000 RSI: ffffffff8715ca7a RDI: 0000000000000005 [ 74.210968][ T8609] RBP: ffff8880a906fd30 R08: ffff888090f926c0 R09: ffffed1014097259 [ 74.218933][ T8609] R10: ffffed1014097258 R11: ffff8880a04b92c3 R12: ffff8880a04b92c0 [ 74.226887][ T8609] R13: ffffffff89bad7c0 R14: ffff8880a04b9268 R15: 0000000000000001 [ 74.234879][ T8609] ? smc_unhash_sk+0x16e/0x260 [ 74.239621][ T8609] ? smc_unhash_sk+0x1ea/0x260 [ 74.244365][ T8609] __smc_release+0x202/0x450 [ 74.248944][ T8609] smc_release+0x10c/0x380 [ 74.253358][ T8609] __sock_release+0xce/0x280 [ 74.257927][ T8609] sock_close+0x1e/0x30 [ 74.262069][ T8609] __fput+0x2ff/0x890 [ 74.266039][ T8609] ? __sock_release+0x280/0x280 [ 74.270878][ T8609] ____fput+0x16/0x20 [ 74.274836][ T8609] task_work_run+0x145/0x1c0 [ 74.279412][ T8609] exit_to_usermode_loop+0x316/0x380 [ 74.284682][ T8609] do_syscall_64+0x65f/0x760 [ 74.289267][ T8609] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 74.295140][ T8609] RIP: 0033:0x4038c0 [ 74.299014][ T8609] Code: 01 f0 ff ff 0f 83 c0 0f 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 2d 00 2e 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 94 0f 00 00 c3 48 83 ec 08 e8 fa 04 00 00 [ 74.318595][ T8609] RSP: 002b:00007ffdd4d505b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 74.326990][ T8609] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000004038c0 [ 74.334947][ T8609] RDX: 0000000000000017 RSI: 0000000000000006 RDI: 0000000000000003 [ 74.342896][ T8609] RBP: 0000000000000000 R08: 0000000000000004 R09: 00000000000003e8 [ 74.350848][ T8609] R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000000 [ 74.358798][ T8609] R13: 0000000000404d70 R14: 0000000000000000 R15: 0000000000000000 [ 74.368177][ T8609] Kernel Offset: disabled [ 74.372567][ T8609] Rebooting in 86400 seconds..