INFO: task syz-executor.0:8313 blocked for more than 143 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D27632 8313 7940 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413bf1 Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 RSP: 002b:00007f2d092e69c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f2d092e6a58 RCX: 0000000000413bf1 RDX: 0000000000000000 RSI: 00007f2d092e6a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f2d092e6a40 R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff INFO: task syz-executor.0:8323 blocked for more than 143 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28768 8323 7940 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459f39 Code: Bad RIP value. RSP: 002b:00007f2d092c5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459f39 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000004 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d092c66d4 R13: 00000000004cf980 R14: 00000000004de090 R15: 00000000ffffffff INFO: task syz-executor.2:8317 blocked for more than 143 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28768 8317 7932 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413bf1 Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 RSP: 002b:00007f1bc98e19c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f1bc98e1a58 RCX: 0000000000413bf1 RDX: 0000000000000000 RSI: 00007f1bc98e1a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f1bc98e1a40 R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff INFO: task syz-executor.2:8328 blocked for more than 144 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28272 8328 7932 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413bf1 Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 RSP: 002b:00007f1bc98c09c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f1bc98c0a58 RCX: 0000000000413bf1 RDX: 0000000000000000 RSI: 00007f1bc98c0a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f1bc98c0a40 R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff INFO: task syz-executor.3:8320 blocked for more than 144 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28768 8320 7933 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413bf1 Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 RSP: 002b:00007fcfef6719c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fcfef671a58 RCX: 0000000000413bf1 RDX: 0000000000000000 RSI: 00007fcfef671a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fcfef671a40 R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff INFO: task syz-executor.3:8329 blocked for more than 144 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28272 8329 7933 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413bf1 Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 RSP: 002b:00007fcfef6509c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fcfef650a58 RCX: 0000000000413bf1 RDX: 0000000000000000 RSI: 00007fcfef650a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fcfef650a40 R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff INFO: task syz-executor.5:8325 blocked for more than 145 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28768 8325 7938 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413bf1 Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 RSP: 002b:00007f0278ad69c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0278ad6a58 RCX: 0000000000413bf1 RDX: 0000000000000000 RSI: 00007f0278ad6a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f0278ad6a40 R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff INFO: task syz-executor.5:8331 blocked for more than 145 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28272 8331 7938 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413bf1 Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 RSP: 002b:00007f0278ab59c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0278ab5a58 RCX: 0000000000413bf1 RDX: 0000000000000000 RSI: 00007f0278ab5a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f0278ab5a40 R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff INFO: task syz-executor.4:8327 blocked for more than 145 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28768 8327 7935 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413bf1 Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 RSP: 002b:00007fe8abc649c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe8abc64a58 RCX: 0000000000413bf1 RDX: 0000000000000000 RSI: 00007fe8abc64a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe8abc64a40 R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff INFO: task syz-executor.4:8330 blocked for more than 145 seconds. Not tainted 5.4.0-rc5 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28272 8330 7935 0x00004004 Call Trace: context_switch kernel/sched/core.c:3384 [inline] __schedule+0x74b/0xb80 kernel/sched/core.c:4069 schedule+0x131/0x1e0 kernel/sched/core.c:4136 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4195 __mutex_lock_common+0x1411/0x2e20 kernel/locking/mutex.c:1033 __mutex_lock kernel/locking/mutex.c:1103 [inline] mutex_lock_nested+0x1b/0x30 kernel/locking/mutex.c:1118 genl_lock net/netlink/genetlink.c:33 [inline] genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x413bf1 Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 RSP: 002b:00007fe8abc439c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe8abc43a58 RCX: 0000000000413bf1 RDX: 0000000000000000 RSI: 00007fe8abc43a00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe8abc43a40 R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1068: #0: ffffffff888d4040 (rcu_read_lock){....}, at: rcu_lock_acquire+0x4/0x30 include/linux/rcupdate.h:207 1 lock held by rsyslogd/7798: #0: ffff8880a61531a0 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x243/0x2e0 fs/file.c:801 2 locks held by getty/7888: #0: ffff8880a11e3090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272 #1: ffffc90005f352e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156 2 locks held by getty/7889: #0: ffff8880a1203090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272 #1: ffffc90005f2d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156 2 locks held by getty/7890: #0: ffff88809d95b090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272 #1: ffffc90005f412e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156 2 locks held by getty/7891: #0: ffff888099054090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272 #1: ffffc90005f192e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156 2 locks held by getty/7892: #0: ffff8880a7bcb090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272 #1: ffffc90005f3d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156 2 locks held by getty/7893: #0: ffff888098b8f090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272 #1: ffffc90005f252e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156 2 locks held by getty/7894: #0: ffff88809417d090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:272 #1: ffffc90005f112e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x221/0x1b00 drivers/tty/n_tty.c:2156 4 locks held by syz-executor.1/8315: 2 locks held by syz-executor.0/8313: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 2 locks held by syz-executor.0/8323: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 2 locks held by syz-executor.2/8317: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 2 locks held by syz-executor.2/8328: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 2 locks held by syz-executor.3/8320: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 2 locks held by syz-executor.3/8329: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 2 locks held by syz-executor.5/8325: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 2 locks held by syz-executor.5/8331: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 2 locks held by syz-executor.4/8327: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 2 locks held by syz-executor.4/8330: #0: ffffffff88b16c00 (cb_lock){++++}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:664 #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff88b16b28 (genl_mutex){+.+.}, at: genl_rcv_msg+0xcc/0x12b0 net/netlink/genetlink.c:652 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1068 Comm: khungtaskd Not tainted 5.4.0-rc5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d8/0x2f8 lib/dump_stack.c:113 nmi_cpu_backtrace+0xaf/0x1a0 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x174/0x290 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x10/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace+0x17/0x20 include/linux/nmi.h:146 check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline] watchdog+0xbb9/0xbd0 kernel/hung_task.c:289 kthread+0x332/0x350 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8315 Comm: syz-executor.1 Not tainted 5.4.0-rc5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:validate_nla lib/nlattr.c:187 [inline] RIP: 0010:__nla_validate_parse+0x3f6/0x1f40 lib/nlattr.c:381 Code: d8 83 e0 08 0f 85 e4 16 00 00 e8 f5 12 14 fe 8b 5d 94 89 de 83 e6 10 31 ff e8 86 16 14 fe 89 d8 83 e0 10 75 0e e8 da 12 14 fe <4c> 8b 65 10 e9 f1 00 00 00 48 8b 85 68 ff ff ff 42 8a 04 30 84 c0 RSP: 0018:ffff88808fad7210 EFLAGS: 00000293 RAX: ffffffff835f3096 RBX: 0000000000000000 RCX: ffff88809fab8480 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88808fad72c8 R08: ffffffff835f308a R09: ffff888216778a80 R10: ffffed1042cef15b R11: 0000000000000000 R12: 1ffff11013395002 R13: ffff888099ca8014 R14: dffffc0000000000 R15: ffff888099ca8016 FS: 00007fc799ad2700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002505978 CR3: 00000000a1337000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __nla_parse+0x41/0x50 lib/nlattr.c:478 __nlmsg_parse include/net/netlink.h:666 [inline] nlmsg_parse_deprecated include/net/netlink.h:706 [inline] tipc_nlmsg_parse+0xb9/0xe0 net/tipc/netlink.c:279 tipc_nl_publ_dump+0x173/0xd30 net/tipc/socket.c:3594 __tipc_nl_compat_dumpit+0x22c/0x7f0 net/tipc/netlink_compat.c:207 tipc_nl_compat_publ_dump net/tipc/netlink_compat.c:1002 [inline] tipc_nl_compat_sk_dump+0x6c0/0x890 net/tipc/netlink_compat.c:1054 __tipc_nl_compat_dumpit+0x33c/0x7f0 net/tipc/netlink_compat.c:216 tipc_nl_compat_dumpit+0x353/0x4f0 net/tipc/netlink_compat.c:288 tipc_nl_compat_handle net/tipc/netlink_compat.c:1195 [inline] tipc_nl_compat_recv+0x1011/0x2200 net/tipc/netlink_compat.c:1291 genl_family_rcv_msg net/netlink/genetlink.c:629 [inline] genl_rcv_msg+0xb55/0x12b0 net/netlink/genetlink.c:654 netlink_rcv_skb+0x19e/0x3d0 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x787/0x8f0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x994/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x60d/0x910 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x17c/0x200 net/socket.c:2363 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459f39 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc799ad1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459f39 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000004 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc799ad26d4 R13: 00000000004cf980 R14: 00000000004de090 R15: 00000000ffffffff