[ 70.059258][ T27] audit: type=1800 audit(1565603746.567:27): pid=10046 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 70.093046][ T27] audit: type=1800 audit(1565603746.577:28): pid=10046 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 70.829748][ T27] audit: type=1800 audit(1565603747.417:29): pid=10046 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 70.850343][ T27] audit: type=1800 audit(1565603747.427:30): pid=10046 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.32' (ECDSA) to the list of known hosts. syzkaller login: [ 81.238085][T10202] IPVS: ftp: loaded support on port[0] = 21 [ 81.286625][T10202] chnl_net:caif_netlink_parms(): no params data found [ 81.308750][T10202] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.316126][T10202] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.323611][T10202] device bridge_slave_0 entered promiscuous mode [ 81.331062][T10202] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.338137][T10202] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.345737][T10202] device bridge_slave_1 entered promiscuous mode [ 81.359079][T10202] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.369582][T10202] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.385599][T10202] team0: Port device team_slave_0 added [ 81.392469][T10202] team0: Port device team_slave_1 added [ 81.472449][T10202] device hsr_slave_0 entered promiscuous mode [ 81.521083][T10202] device hsr_slave_1 entered promiscuous mode [ 81.596315][T10202] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.603471][T10202] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.611112][T10202] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.618155][T10202] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.643750][T10202] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.654383][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.662930][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.670429][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.679095][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 81.689048][T10202] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.698323][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.706656][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.713718][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.726104][T10204] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.734389][T10204] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.741680][T10204] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.758066][T10202] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 81.768519][T10202] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 81.781691][ T3009] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.790041][ T3009] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.798336][ T3009] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program executing program executing program [ 81.807475][ T3009] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.815903][ T3009] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.823562][ T3009] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.838448][T10202] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 97.341829][T16188] ================================================================== [ 97.349927][T16188] BUG: KASAN: use-after-free in rxrpc_queue_local+0x7c/0x3e0 [ 97.357321][T16188] Read of size 4 at addr ffff8880a7724014 by task syz-executor522/16188 [ 97.365612][T16188] [ 97.367919][T16188] CPU: 0 PID: 16188 Comm: syz-executor522 Not tainted 5.3.0-rc3+ #159 [ 97.376155][T16188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.386184][T16188] Call Trace: [ 97.389500][T16188] dump_stack+0x172/0x1f0 [ 97.393809][T16188] ? rxrpc_queue_local+0x7c/0x3e0 [ 97.398809][T16188] print_address_description.cold+0xd4/0x306 [ 97.404776][T16188] ? rxrpc_queue_local+0x7c/0x3e0 [ 97.409773][T16188] ? rxrpc_queue_local+0x7c/0x3e0 [ 97.414773][T16188] __kasan_report.cold+0x1b/0x36 [ 97.419687][T16188] ? rxrpc_queue_local+0x7c/0x3e0 [ 97.424687][T16188] ? rxrpc_unuse_local+0x52/0x80 [ 97.429613][T16188] kasan_report+0x12/0x17 [ 97.433944][T16188] check_memory_region+0x134/0x1a0 [ 97.439031][T16188] ? rxrpc_unuse_local+0x52/0x80 [ 97.443943][T16188] __kasan_check_read+0x11/0x20 [ 97.448767][T16188] rxrpc_queue_local+0x7c/0x3e0 [ 97.453595][T16188] rxrpc_unuse_local+0x52/0x80 [ 97.458329][T16188] rxrpc_release+0x47d/0x840 [ 97.462894][T16188] __sock_release+0xce/0x280 [ 97.467456][T16188] sock_close+0x1e/0x30 [ 97.471586][T16188] __fput+0x2ff/0x890 [ 97.475543][T16188] ? __sock_release+0x280/0x280 [ 97.480375][T16188] ____fput+0x16/0x20 [ 97.484333][T16188] task_work_run+0x145/0x1c0 [ 97.488904][T16188] exit_to_usermode_loop+0x316/0x380 [ 97.494179][T16188] do_syscall_64+0x5a9/0x6a0 [ 97.498759][T16188] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.504628][T16188] RIP: 0033:0x407bb1 [ 97.508499][T16188] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 24 1a 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 97.528096][T16188] RSP: 002b:00007ffc861e4d10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 97.536484][T16188] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000407bb1 [ 97.544428][T16188] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000003 [ 97.552371][T16188] RBP: 00000000006e5a0c R08: 00000000004b1939 R09: 00000000004b1939 [ 97.560315][T16188] R10: 00007ffc861e4d40 R11: 0000000000000293 R12: 00000000006e5a00 [ 97.568262][T16188] R13: 0000000000000000 R14: 000000000000002d R15: 20c49ba5e353f7cf [ 97.576229][T16188] [ 97.578536][T16188] Allocated by task 16189: [ 97.582932][T16188] save_stack+0x23/0x90 [ 97.587062][T16188] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 97.592670][T16188] kasan_kmalloc+0x9/0x10 [ 97.596971][T16188] kmem_cache_alloc_trace+0x158/0x790 [ 97.602318][T16188] rxrpc_lookup_local+0x562/0x1b70 [ 97.607411][T16188] rxrpc_bind+0x34d/0x5e0 [ 97.611716][T16188] __sys_bind+0x239/0x290 [ 97.616032][T16188] __x64_sys_bind+0x73/0xb0 [ 97.620505][T16188] do_syscall_64+0xfd/0x6a0 [ 97.624983][T16188] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.630852][T16188] [ 97.633164][T16188] Freed by task 9: [ 97.636862][T16188] save_stack+0x23/0x90 [ 97.640995][T16188] __kasan_slab_free+0x102/0x150 [ 97.645935][T16188] kasan_slab_free+0xe/0x10 [ 97.650431][T16188] kfree+0x10a/0x2c0 [ 97.654300][T16188] rxrpc_local_rcu+0x62/0x80 [ 97.658864][T16188] rcu_core+0x67f/0x1580 [ 97.663095][T16188] rcu_core_si+0x9/0x10 [ 97.667229][T16188] __do_softirq+0x262/0x98c [ 97.671702][T16188] [ 97.674020][T16188] The buggy address belongs to the object at ffff8880a7724000 [ 97.674020][T16188] which belongs to the cache kmalloc-1k of size 1024 [ 97.688047][T16188] The buggy address is located 20 bytes inside of [ 97.688047][T16188] 1024-byte region [ffff8880a7724000, ffff8880a7724400) [ 97.701289][T16188] The buggy address belongs to the page: [ 97.706907][T16188] page:ffffea00029dc900 refcount:1 mapcount:0 mapping:ffff8880aa400c40 index:0xffff8880a7725200 compound_mapcount: 0 [ 97.719117][T16188] flags: 0x1fffc0000010200(slab|head) [ 97.724468][T16188] raw: 01fffc0000010200 ffffea0002a6ad08 ffffea0002a6a808 ffff8880aa400c40 [ 97.733027][T16188] raw: ffff8880a7725200 ffff8880a7724000 0000000100000005 0000000000000000 [ 97.741578][T16188] page dumped because: kasan: bad access detected [ 97.748681][T16188] [ 97.751049][T16188] Memory state around the buggy address: [ 97.756656][T16188] ffff8880a7723f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 97.764691][T16188] ffff8880a7723f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 97.772758][T16188] >ffff8880a7724000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 97.780805][T16188] ^ [ 97.785377][T16188] ffff8880a7724080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 97.793411][T16188] ffff8880a7724100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 97.801444][T16188] ================================================================== [ 97.810311][T16188] Kernel panic - not syncing: panic_on_warn set ... [ 97.816899][T16188] CPU: 0 PID: 16188 Comm: syz-executor522 Tainted: G B 5.3.0-rc3+ #159 [ 97.826408][T16188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.836465][T16188] Call Trace: [ 97.839745][T16188] dump_stack+0x172/0x1f0 [ 97.844054][T16188] panic+0x2dc/0x755 [ 97.847925][T16188] ? add_taint.cold+0x16/0x16 [ 97.852586][T16188] ? rxrpc_queue_local+0x7c/0x3e0 [ 97.857589][T16188] ? preempt_schedule+0x4b/0x60 [ 97.862420][T16188] ? ___preempt_schedule+0x16/0x20 [ 97.867507][T16188] ? trace_hardirqs_on+0x5e/0x240 [ 97.872507][T16188] ? rxrpc_queue_local+0x7c/0x3e0 [ 97.877508][T16188] end_report+0x47/0x4f [ 97.881638][T16188] ? rxrpc_queue_local+0x7c/0x3e0 [ 97.886643][T16188] __kasan_report.cold+0xe/0x36 [ 97.891484][T16188] ? rxrpc_queue_local+0x7c/0x3e0 [ 97.896485][T16188] ? rxrpc_unuse_local+0x52/0x80 [ 97.901397][T16188] kasan_report+0x12/0x17 [ 97.905703][T16188] check_memory_region+0x134/0x1a0 [ 97.910799][T16188] ? rxrpc_unuse_local+0x52/0x80 [ 97.915736][T16188] __kasan_check_read+0x11/0x20 [ 97.920574][T16188] rxrpc_queue_local+0x7c/0x3e0 [ 97.925401][T16188] rxrpc_unuse_local+0x52/0x80 [ 97.930156][T16188] rxrpc_release+0x47d/0x840 [ 97.934755][T16188] __sock_release+0xce/0x280 [ 97.939330][T16188] sock_close+0x1e/0x30 [ 97.943470][T16188] __fput+0x2ff/0x890 [ 97.947428][T16188] ? __sock_release+0x280/0x280 [ 97.952277][T16188] ____fput+0x16/0x20 [ 97.956240][T16188] task_work_run+0x145/0x1c0 [ 97.960836][T16188] exit_to_usermode_loop+0x316/0x380 [ 97.966283][T16188] do_syscall_64+0x5a9/0x6a0 [ 97.970861][T16188] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.976751][T16188] RIP: 0033:0x407bb1 [ 97.980628][T16188] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 24 1a 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 98.000209][T16188] RSP: 002b:00007ffc861e4d10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 98.008599][T16188] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000407bb1 [ 98.016546][T16188] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000003 [ 98.024497][T16188] RBP: 00000000006e5a0c R08: 00000000004b1939 R09: 00000000004b1939 [ 98.032452][T16188] R10: 00007ffc861e4d40 R11: 0000000000000293 R12: 00000000006e5a00 [ 98.040414][T16188] R13: 0000000000000000 R14: 000000000000002d R15: 20c49ba5e353f7cf [ 98.049408][T16188] Kernel Offset: disabled [ 98.053733][T16188] Rebooting in 86400 seconds..