Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout INFO: task syz-executor.0:8113 blocked for more than 140 seconds. Not tainted 4.19.172-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D23488 8113 8112 0x00000000 Call Trace: context_switch syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3517 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3619 __mutex_lock_common syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x647/0x1260 syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1072 xt_find_table_lock+0x3d/0x430 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1211 xt_request_find_table_lock+0x27/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1258 get_info+0x12f/0x4e0 syzkaller/managers/linux-4-19/kernel/net/ipv6/netfilter/ip6_tables.c:984 do_ipt_get_ctl+0x14e/0x8d0 syzkaller/managers/linux-4-19/kernel/net/ipv4/netfilter/ip_tables.c:1699 nf_sockopt syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:122 ip_getsockopt syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1574 [inline] ip_getsockopt+0x167/0x1c0 syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1554 tcp_getsockopt+0x86/0xd0 syzkaller/managers/linux-4-19/kernel/net/ipv4/tcp.c:3618 __sys_getsockopt+0x135/0x210 syzkaller/managers/linux-4-19/kernel/net/socket.c:1938 __do_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1949 [inline] __se_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 [inline] __x64_sys_getsockopt+0xba/0x150 syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46711a Code: Bad RIP value. RSP: 002b:00007ffd7a401488 EFLAGS: 00000202 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046711a RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007ffd7a4014b0 R08: 00007ffd7a4014ac R09: 00007ffd7a401540 R10: 00007ffd7a4014b0 R11: 0000000000000202 R12: 0000000000000032 R13: 0000000000000003 R14: 00007ffd7a4014ac R15: 000000000053cd00 INFO: task syz-executor.1:8115 blocked for more than 140 seconds. Not tainted 4.19.172-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D23696 8115 1 0x00000004 Call Trace: context_switch syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3517 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3619 __mutex_lock_common syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x647/0x1260 syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1072 xt_find_table_lock+0x3d/0x430 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1211 xt_request_find_table_lock+0x27/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1258 get_info+0x12f/0x4e0 syzkaller/managers/linux-4-19/kernel/net/ipv6/netfilter/ip6_tables.c:984 do_ipt_get_ctl+0x14e/0x8d0 syzkaller/managers/linux-4-19/kernel/net/ipv4/netfilter/ip_tables.c:1699 nf_sockopt syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:122 ip_getsockopt syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1574 [inline] ip_getsockopt+0x167/0x1c0 syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1554 tcp_getsockopt+0x86/0xd0 syzkaller/managers/linux-4-19/kernel/net/ipv4/tcp.c:3618 __sys_getsockopt+0x135/0x210 syzkaller/managers/linux-4-19/kernel/net/socket.c:1938 __do_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1949 [inline] __se_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 [inline] __x64_sys_getsockopt+0xba/0x150 syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46711a Code: Bad RIP value. RSP: 002b:00007ffe45a03ab8 EFLAGS: 00000202 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046711a RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00007ffe45a03aec R09: 00007ffe45a03b10 R10: 000000000053cd08 R11: 0000000000000202 R12: 00007ffe45a03aec R13: 00000000004b06cf R14: 000000000053cd08 R15: 000000000053cd00 INFO: task syz-executor.2:8117 blocked for more than 140 seconds. Not tainted 4.19.172-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D24368 8117 1 0x00000004 Call Trace: context_switch syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3517 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3561 exp_funnel_lock syzkaller/managers/linux-4-19/kernel/kernel/rcu/tree_exp.h:320 [inline] _synchronize_rcu_expedited+0x60c/0x6f0 syzkaller/managers/linux-4-19/kernel/kernel/rcu/tree_exp.h:667 synchronize_rcu+0xc6/0x160 syzkaller/managers/linux-4-19/kernel/kernel/rcu/tree_plugin.h:818 xt_replace_table+0x2ff/0x640 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1394 xt_register_table+0x27a/0x5d0 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1437 ipt_register_table+0x197/0x2f0 syzkaller/managers/linux-4-19/kernel/net/ipv4/netfilter/ip_tables.c:1779 iptable_mangle_table_init syzkaller/managers/linux-4-19/kernel/net/ipv4/netfilter/iptable_mangle.c:100 [inline] iptable_mangle_table_init+0x82/0xc0 syzkaller/managers/linux-4-19/kernel/net/ipv4/netfilter/iptable_mangle.c:89 xt_find_table_lock+0x289/0x430 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1228 xt_request_find_table_lock+0x27/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1258 get_info+0x12f/0x4e0 syzkaller/managers/linux-4-19/kernel/net/ipv6/netfilter/ip6_tables.c:984 do_ipt_get_ctl+0x14e/0x8d0 syzkaller/managers/linux-4-19/kernel/net/ipv4/netfilter/ip_tables.c:1699 nf_sockopt syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:122 ip_getsockopt syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1574 [inline] ip_getsockopt+0x167/0x1c0 syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1554 tcp_getsockopt+0x86/0xd0 syzkaller/managers/linux-4-19/kernel/net/ipv4/tcp.c:3618 __sys_getsockopt+0x135/0x210 syzkaller/managers/linux-4-19/kernel/net/socket.c:1938 __do_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1949 [inline] __se_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 [inline] __x64_sys_getsockopt+0xba/0x150 syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46711a Code: Bad RIP value. RSP: 002b:00007fff9b9a3e68 EFLAGS: 00000202 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046711a RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00007fff9b9a3e9c R09: 0000000000000310 R10: 000000000053da88 R11: 0000000000000202 R12: 00007fff9b9a3e9c R13: 00000000004bef13 R14: 000000000053da88 R15: 000000000053da80 INFO: task syz-executor.3:8119 blocked for more than 140 seconds. Not tainted 4.19.172-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D24192 8119 8118 0x00000000 Call Trace: context_switch syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3517 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3619 __mutex_lock_common syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x647/0x1260 syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1072 xt_find_table_lock+0x3d/0x430 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1211 xt_request_find_table_lock+0x27/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1258 get_info+0x12f/0x4e0 syzkaller/managers/linux-4-19/kernel/net/ipv6/netfilter/ip6_tables.c:984 do_ipt_get_ctl+0x14e/0x8d0 syzkaller/managers/linux-4-19/kernel/net/ipv4/netfilter/ip_tables.c:1699 nf_sockopt syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:122 ip_getsockopt syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1574 [inline] ip_getsockopt+0x167/0x1c0 syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1554 tcp_getsockopt+0x86/0xd0 syzkaller/managers/linux-4-19/kernel/net/ipv4/tcp.c:3618 __sys_getsockopt+0x135/0x210 syzkaller/managers/linux-4-19/kernel/net/socket.c:1938 __do_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1949 [inline] __se_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 [inline] __x64_sys_getsockopt+0xba/0x150 syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46711a Code: Bad RIP value. RSP: 002b:00007ffea2a25e88 EFLAGS: 00000202 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046711a RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007ffea2a25eb0 R08: 00007ffea2a25eac R09: 00007ffea2a25f40 R10: 00007ffea2a25eb0 R11: 0000000000000202 R12: 0000000000000032 R13: 0000000000000003 R14: 00007ffea2a25eac R15: 000000000053cd00 INFO: task syz-executor.4:8121 blocked for more than 140 seconds. Not tainted 4.19.172-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D24368 8121 1 0x00000004 Call Trace: context_switch syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3517 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3619 __mutex_lock_common syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x647/0x1260 syzkaller/managers/linux-4-19/kernel/kernel/locking/mutex.c:1072 xt_find_table_lock+0x3d/0x430 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1211 xt_request_find_table_lock+0x27/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1258 get_info+0x12f/0x4e0 syzkaller/managers/linux-4-19/kernel/net/ipv6/netfilter/ip6_tables.c:984 do_ipt_get_ctl+0x14e/0x8d0 syzkaller/managers/linux-4-19/kernel/net/ipv4/netfilter/ip_tables.c:1699 nf_sockopt syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 syzkaller/managers/linux-4-19/kernel/net/netfilter/nf_sockopt.c:122 ip_getsockopt syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1574 [inline] ip_getsockopt+0x167/0x1c0 syzkaller/managers/linux-4-19/kernel/net/ipv4/ip_sockglue.c:1554 tcp_getsockopt+0x86/0xd0 syzkaller/managers/linux-4-19/kernel/net/ipv4/tcp.c:3618 __sys_getsockopt+0x135/0x210 syzkaller/managers/linux-4-19/kernel/net/socket.c:1938 __do_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1949 [inline] __se_sys_getsockopt syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 [inline] __x64_sys_getsockopt+0xba/0x150 syzkaller/managers/linux-4-19/kernel/net/socket.c:1946 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46711a Code: Bad RIP value. RSP: 002b:00007ffd78195c58 EFLAGS: 00000202 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000046711a RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00007ffd78195c8c R09: 00007ffd78195cb0 R10: 000000000053cd08 R11: 0000000000000202 R12: 00007ffd78195c8c R13: 00000000004b06cf R14: 000000000053cd08 R15: 000000000053cd00 INFO: task syz-executor.5:9647 blocked for more than 140 seconds. Not tainted 4.19.172-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28632 9647 8123 0x00000004 Call Trace: context_switch syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3517 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3561 exp_funnel_lock syzkaller/managers/linux-4-19/kernel/kernel/rcu/tree_exp.h:320 [inline] _synchronize_rcu_expedited+0x60c/0x6f0 syzkaller/managers/linux-4-19/kernel/kernel/rcu/tree_exp.h:667 synchronize_rcu+0xc6/0x160 syzkaller/managers/linux-4-19/kernel/kernel/rcu/tree_plugin.h:818 namespace_unlock syzkaller/managers/linux-4-19/kernel/fs/namespace.c:1363 [inline] unlock_mount syzkaller/managers/linux-4-19/kernel/fs/namespace.c:2071 [inline] do_loopback syzkaller/managers/linux-4-19/kernel/fs/namespace.c:2212 [inline] do_mount+0x23a8/0x2f10 syzkaller/managers/linux-4-19/kernel/fs/namespace.c:2793 ksys_mount+0xcf/0x130 syzkaller/managers/linux-4-19/kernel/fs/namespace.c:3015 __do_sys_mount syzkaller/managers/linux-4-19/kernel/fs/namespace.c:3029 [inline] __se_sys_mount syzkaller/managers/linux-4-19/kernel/fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 syzkaller/managers/linux-4-19/kernel/fs/namespace.c:3026 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46702a Code: Bad RIP value. RSP: 002b:00007f78a6198fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020002b00 RCX: 000000000046702a RDX: 0000000020001780 RSI: 00000000200017c0 RDI: 00007f78a6199000 RBP: 00007f78a6199040 R08: 00007f78a6199040 R09: 0000000020001780 R10: 0000000001001014 R11: 0000000000000206 R12: 0000000020001780 R13: 00000000200017c0 R14: 00007f78a6199000 R15: 0000000020002bc0 INFO: task syz-executor.5:9655 blocked for more than 140 seconds. Not tainted 4.19.172-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28816 9655 8123 0x00000004 Call Trace: context_switch syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3517 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-19/kernel/kernel/sched/core.c:3561 __rwsem_down_write_failed_common syzkaller/managers/linux-4-19/kernel/kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 syzkaller/managers/linux-4-19/kernel/kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 syzkaller/managers/linux-4-19/kernel/arch/x86/lib/rwsem.S:117 __down_write syzkaller/managers/linux-4-19/kernel/./arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 syzkaller/managers/linux-4-19/kernel/kernel/locking/rwsem.c:72 inode_lock syzkaller/managers/linux-4-19/kernel/./include/linux/fs.h:748 [inline] lock_mount+0xcc/0x4a0 syzkaller/managers/linux-4-19/kernel/fs/namespace.c:2039 do_loopback syzkaller/managers/linux-4-19/kernel/fs/namespace.c:2172 [inline] do_mount+0xe4d/0x2f10 syzkaller/managers/linux-4-19/kernel/fs/namespace.c:2793 ksys_mount+0xcf/0x130 syzkaller/managers/linux-4-19/kernel/fs/namespace.c:3015 __do_sys_mount syzkaller/managers/linux-4-19/kernel/fs/namespace.c:3029 [inline] __se_sys_mount syzkaller/managers/linux-4-19/kernel/fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 syzkaller/managers/linux-4-19/kernel/fs/namespace.c:3026 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46702a Code: 30 01 00 75 15 48 8b 84 24 d0 00 00 00 48 c7 40 48 00 00 00 00 e9 54 fc ff ff 48 8b 7c 24 78 31 c9 e8 da 53 00 00 48 8b 84 24 00 00 00 e9 3b fc ff ff 44 38 c3 0f 85 b3 fb ff ff 0f 1f 40 00 RSP: 002b:00007f78a6177fa8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020002b00 RCX: 000000000046702a RDX: 0000000020001780 RSI: 00000000200017c0 RDI: 00007f78a6178000 RBP: 00007f78a6178040 R08: 00007f78a6178040 R09: 0000000020001780 R10: 0000000001001014 R11: 0000000000000202 R12: 0000000020001780 R13: 00000000200017c0 R14: 00007f78a6178000 R15: 0000000020002bc0 Showing all locks held in the system: 1 lock held by khungtaskd/1566: #0: 0000000040020921 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 syzkaller/managers/linux-4-19/kernel/kernel/locking/lockdep.c:4440 1 lock held by syz-executor.0/8113: #0: 00000000c30f42a6 (&xt[i].mutex){+.+.}, at: xt_find_table_lock+0x3d/0x430 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1211 1 lock held by syz-executor.1/8115: #0: 00000000c30f42a6 (&xt[i].mutex){+.+.}, at: xt_find_table_lock+0x3d/0x430 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1211 1 lock held by syz-executor.2/8117: #0: 00000000c30f42a6 (&xt[i].mutex){+.+.}, at: xt_register_table+0xda/0x5d0 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1425 1 lock held by syz-executor.3/8119: #0: 00000000c30f42a6 (&xt[i].mutex){+.+.}, at: xt_find_table_lock+0x3d/0x430 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1211 1 lock held by syz-executor.4/8121: #0: 00000000c30f42a6 (&xt[i].mutex){+.+.}, at: xt_find_table_lock+0x3d/0x430 syzkaller/managers/linux-4-19/kernel/net/netfilter/x_tables.c:1211 1 lock held by syz-executor.5/9647: #0: 00000000827277bd (&type->i_mutex_dir_key#3){++++}, at: inode_lock syzkaller/managers/linux-4-19/kernel/./include/linux/fs.h:748 [inline] #0: 00000000827277bd (&type->i_mutex_dir_key#3){++++}, at: lock_mount+0xcc/0x4a0 syzkaller/managers/linux-4-19/kernel/fs/namespace.c:2039 1 lock held by syz-executor.5/9655: #0: 00000000827277bd (&type->i_mutex_dir_key#3){++++}, at: inode_lock syzkaller/managers/linux-4-19/kernel/./include/linux/fs.h:748 [inline] #0: 00000000827277bd (&type->i_mutex_dir_key#3){++++}, at: lock_mount+0xcc/0x4a0 syzkaller/managers/linux-4-19/kernel/fs/namespace.c:2039 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1566 Comm: khungtaskd Not tainted 4.19.172-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef syzkaller/managers/linux-4-19/kernel/lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 syzkaller/managers/linux-4-19/kernel/lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 syzkaller/managers/linux-4-19/kernel/lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace syzkaller/managers/linux-4-19/kernel/./include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks syzkaller/managers/linux-4-19/kernel/kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 syzkaller/managers/linux-4-19/kernel/kernel/hung_task.c:287 kthread+0x33f/0x460 syzkaller/managers/linux-4-19/kernel/kernel/kthread.c:259 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3142 Comm: kworker/u4:5 Not tainted 4.19.172-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy8 ieee80211_iface_work RIP: 0010:ieee80211_sta_get_rates+0x51d/0x860 syzkaller/managers/linux-4-19/kernel/net/mac80211/util.c:1706 Code: 89 fa 83 e2 07 83 c2 01 38 ca 7c 08 84 c9 0f 85 c0 02 00 00 8b 74 24 20 41 0f b7 44 24 04 44 8b 7c 24 14 8d 44 06 ff 99 f7 fe <44> 89 fe 41 89 c4 89 c7 e8 86 89 c0 f9 45 39 fc 0f 85 23 ff ff ff RSP: 0018:ffff8880ab32f690 EFLAGS: 00000246 RAX: 000000000000005a RBX: 0000000000000005 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88804aaabe58 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000000 R12: ffff88804aaabe54 R13: 000000000000000c R14: ffff88804aaab368 R15: 000000000000006e FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdc060d4000 CR3: 00000000a15d5000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_update_sta_info syzkaller/managers/linux-4-19/kernel/net/mac80211/ibss.c:1014 [inline] ieee80211_rx_bss_info syzkaller/managers/linux-4-19/kernel/net/mac80211/ibss.c:1123 [inline] ieee80211_rx_mgmt_probe_beacon+0x552/0x15c0 syzkaller/managers/linux-4-19/kernel/net/mac80211/ibss.c:1607 ieee80211_ibss_rx_queued_mgmt+0xe27/0x18b0 syzkaller/managers/linux-4-19/kernel/net/mac80211/ibss.c:1634 ieee80211_iface_work+0x5c4/0x8a0 syzkaller/managers/linux-4-19/kernel/net/mac80211/iface.c:1345 process_one_work+0x864/0x1570 syzkaller/managers/linux-4-19/kernel/kernel/workqueue.c:2155 worker_thread+0x64c/0x1130 syzkaller/managers/linux-4-19/kernel/kernel/workqueue.c:2298 kthread+0x33f/0x460 syzkaller/managers/linux-4-19/kernel/kernel/kthread.c:259 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/entry_64.S:415