[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 27.698566][ T25] kauditd_printk_skb: 20 callbacks suppressed [ 27.698572][ T25] audit: type=1400 audit(1571616829.182:41): avc: denied { map } for pid=6821 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.133' (ECDSA) to the list of known hosts. [ 33.610771][ T25] audit: type=1400 audit(1571616835.092:42): avc: denied { map } for pid=6835 comm="syz-executor786" path="/root/syz-executor786750038" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 40.556470][ T6838] IPVS: ftp: loaded support on port[0] = 21 [ 40.573113][ T6838] chnl_net:caif_netlink_parms(): no params data found [ 40.584664][ T6838] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.594195][ T6838] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.601553][ T6838] device bridge_slave_0 entered promiscuous mode [ 40.608332][ T6838] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.616016][ T6838] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.623486][ T6838] device bridge_slave_1 entered promiscuous mode [ 40.632462][ T6838] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.642371][ T6838] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.654025][ T6838] team0: Port device team_slave_0 added [ 40.659918][ T6838] team0: Port device team_slave_1 added [ 40.701874][ T6838] device hsr_slave_0 entered promiscuous mode [ 40.751273][ T6838] device hsr_slave_1 entered promiscuous mode [ 40.802948][ T6838] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.809990][ T6838] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.817205][ T6838] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.824216][ T6838] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.837618][ T6838] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.845657][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.853251][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.860647][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.868140][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 40.876805][ T6838] 8021q: adding VLAN 0 to HW filter on device team0 [ 40.885392][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.893694][ T26] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.900706][ T26] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.912948][ T6838] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 40.923568][ T6838] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 40.935365][ T6840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.943824][ T6840] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.950834][ T6840] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.958471][ T6840] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.966967][ T6840] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.975111][ T6840] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.984680][ T6840] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.992788][ T6840] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 41.000040][ T6840] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 41.010088][ T6838] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 41.025874][ T6838] gfs2: gfs2 mount does not exist [ 42.271521][ T2577] device bridge_slave_1 left promiscuous mode [ 42.277629][ T2577] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.331341][ T2577] device bridge_slave_0 left promiscuous mode [ 42.337529][ T2577] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.511466][ T2577] device hsr_slave_0 left promiscuous mode [ 42.581169][ T2577] device hsr_slave_1 left promiscuous mode [ 42.652421][ T2577] team0 (unregistering): Port device team_slave_1 removed [ 42.660274][ T2577] team0 (unregistering): Port device team_slave_0 removed [ 42.668089][ T2577] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 42.731912][ T2577] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 42.775141][ T2577] bond0 (unregistering): Released all slaves [ 46.854894][ T6835] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811dec6c00 (size 256): comm "syz-executor786", pid 6838, jiffies 4294941372 (age 7.790s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000007721f9ee>] kmem_cache_alloc_trace+0x145/0x2c0 [<00000000cb8f8f27>] gfs2_init_fs_context+0x25/0x90 [<0000000096bb78ce>] gfs2_meta_init_fs_context+0x17/0x40 [<00000000b94e4dfe>] alloc_fs_context+0x174/0x200 [<00000000f399f246>] fs_context_for_mount+0x25/0x30 [<00000000919fdde5>] do_mount+0x881/0xc60 [<000000001086d499>] ksys_mount+0xab/0x120 [<000000009545f28f>] __x64_sys_mount+0x26/0x30 [<000000004950b560>] do_syscall_64+0x73/0x1f0 [<0000000024b22ffa>] entry_SYSCALL_64_after_hwframe+0x44/0xa9