bisecting fixing commit since 53bd76690e27f37c9df221a651a52cea04214da9 building syzkaller on 6c236867ce33c0c16b102e02a08226d7eb9b2046 testing commit 53bd76690e27f37c9df221a651a52cea04214da9 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 7230cfbc8ff3c3730ce2491a5df3593f18cfd48b9f9a8995b9a3011894937d46 all runs: crashed: INFO: task hung in tls_push_record testing current HEAD c2276d585654e8d573366c29c565043ec36adf63 testing commit c2276d585654e8d573366c29c565043ec36adf63 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 3e62e1781b300decdadff14cfd7bfab1d5f063430a065ca6898709b0f0383c77 all runs: crashed: INFO: task hung in tls_push_record revisions tested: 2, total time: 30m13.176825657s (build: 17m41.183695443s, test: 12m1.927862732s) the crash still happens on HEAD commit msg: Linux 4.19.208 crash: INFO: task hung in tls_push_record Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.2:9927 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28280 9927 8480 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x6f6/0xd20 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x3fb/0x5d0 kernel/sched/completion.c:115 wait_for_completion+0x18/0x20 kernel/sched/completion.c:136 crypto_wait_req include/linux/crypto.h:517 [inline] tls_do_encryption net/tls/tls_sw.c:193 [inline] tls_push_record+0xe65/0x15f0 net/tls/tls_sw.c:228 tls_sw_sendpage+0x462/0xc00 net/tls/tls_sw.c:585 inet_sendpage+0x122/0x600 net/ipv4/af_inet.c:815 kernel_sendpage+0x60/0xd0 net/socket.c:3585 sock_sendpage+0x6d/0xd0 net/socket.c:912 pipe_to_sendpage+0x212/0x430 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x2cb/0x720 fs/splice.c:627 splice_from_pipe+0xbb/0x120 fs/splice.c:662 generic_splice_sendpage+0x10/0x20 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0x71e/0x17e0 fs/splice.c:1408 __x64_sys_splice+0xdc/0x1a0 fs/splice.c:1408 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: Bad RIP value. RSP: 002b:00007fd37b886188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc52db6fcf R14: 00007fd37b886300 R15: 0000000000022000 INFO: task syz-executor.0:9928 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28360 9928 8479 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x6f6/0xd20 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x3fb/0x5d0 kernel/sched/completion.c:115 wait_for_completion+0x18/0x20 kernel/sched/completion.c:136 crypto_wait_req include/linux/crypto.h:517 [inline] tls_do_encryption net/tls/tls_sw.c:193 [inline] tls_push_record+0xe65/0x15f0 net/tls/tls_sw.c:228 tls_sw_sendpage+0x462/0xc00 net/tls/tls_sw.c:585 inet_sendpage+0x122/0x600 net/ipv4/af_inet.c:815 kernel_sendpage+0x60/0xd0 net/socket.c:3585 sock_sendpage+0x6d/0xd0 net/socket.c:912 pipe_to_sendpage+0x212/0x430 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x2cb/0x720 fs/splice.c:627 splice_from_pipe+0xbb/0x120 fs/splice.c:662 generic_splice_sendpage+0x10/0x20 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0x71e/0x17e0 fs/splice.c:1408 __x64_sys_splice+0xdc/0x1a0 fs/splice.c:1408 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: 00 84 c9 0f 85 f1 fd ff ff 83 3d 81 00 3a 01 00 0f 85 c2 00 00 00 48 8d 0d 8c 2e 43 00 48 89 88 a8 00 00 00 0f 57 c0 0f 11 84 <24> 90 00 00 00 48 8b 0d 13 db 36 01 48 89 8c 24 90 00 00 00 48 8d RSP: 002b:00007fe2c1997188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd1e70318f R14: 00007fe2c1997300 R15: 0000000000022000 INFO: task syz-executor.0:9983 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28952 9983 8479 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x6f6/0xd20 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x3fb/0x5d0 kernel/sched/completion.c:115 wait_for_completion+0x18/0x20 kernel/sched/completion.c:136 crypto_wait_req include/linux/crypto.h:517 [inline] tls_do_encryption net/tls/tls_sw.c:193 [inline] tls_push_record+0xe65/0x15f0 net/tls/tls_sw.c:228 tls_sw_sendpage+0x462/0xc00 net/tls/tls_sw.c:585 inet_sendpage+0x122/0x600 net/ipv4/af_inet.c:815 kernel_sendpage+0x60/0xd0 net/socket.c:3585 sock_sendpage+0x6d/0xd0 net/socket.c:912 pipe_to_sendpage+0x212/0x430 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x2cb/0x720 fs/splice.c:627 splice_from_pipe+0xbb/0x120 fs/splice.c:662 generic_splice_sendpage+0x10/0x20 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0x71e/0x17e0 fs/splice.c:1408 __x64_sys_splice+0xdc/0x1a0 fs/splice.c:1408 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: 00 84 c9 0f 85 f1 fd ff ff 83 3d 81 00 3a 01 00 0f 85 c2 00 00 00 48 8d 0d 8c 2e 43 00 48 89 88 a8 00 00 00 0f 57 c0 0f 11 84 <24> 90 00 00 00 48 8b 0d 13 db 36 01 48 89 8c 24 90 00 00 00 48 8d RSP: 002b:00007fe2c1955188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665e9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0f0 R13: 00007ffd1e70318f R14: 00007fe2c1955300 R15: 0000000000022000 INFO: task syz-executor.5:9944 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28280 9944 8476 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x6f6/0xd20 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x3fb/0x5d0 kernel/sched/completion.c:115 wait_for_completion+0x18/0x20 kernel/sched/completion.c:136 crypto_wait_req include/linux/crypto.h:517 [inline] tls_do_encryption net/tls/tls_sw.c:193 [inline] tls_push_record+0xe65/0x15f0 net/tls/tls_sw.c:228 tls_sw_sendpage+0x462/0xc00 net/tls/tls_sw.c:585 inet_sendpage+0x122/0x600 net/ipv4/af_inet.c:815 kernel_sendpage+0x60/0xd0 net/socket.c:3585 sock_sendpage+0x6d/0xd0 net/socket.c:912 pipe_to_sendpage+0x212/0x430 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x2cb/0x720 fs/splice.c:627 splice_from_pipe+0xbb/0x120 fs/splice.c:662 generic_splice_sendpage+0x10/0x20 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0x71e/0x17e0 fs/splice.c:1408 __x64_sys_splice+0xdc/0x1a0 fs/splice.c:1408 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: 00 84 c9 0f 85 f1 fd ff ff 83 3d 81 00 3a 01 00 0f 85 c2 00 00 00 48 8d 0d 8c 2e 43 00 48 89 88 a8 00 00 00 0f 57 c0 0f 11 84 <24> 90 00 00 00 48 8b 0d 13 db 36 01 48 89 8c 24 90 00 00 00 48 8d RSP: 002b:00007f4d2a008188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffeeff98acf R14: 00007f4d2a008300 R15: 0000000000022000 INFO: task syz-executor.5:9985 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28952 9985 8476 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x6f6/0xd20 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x3fb/0x5d0 kernel/sched/completion.c:115 wait_for_completion+0x18/0x20 kernel/sched/completion.c:136 crypto_wait_req include/linux/crypto.h:517 [inline] tls_do_encryption net/tls/tls_sw.c:193 [inline] tls_push_record+0xe65/0x15f0 net/tls/tls_sw.c:228 tls_sw_sendpage+0x462/0xc00 net/tls/tls_sw.c:585 inet_sendpage+0x122/0x600 net/ipv4/af_inet.c:815 kernel_sendpage+0x60/0xd0 net/socket.c:3585 sock_sendpage+0x6d/0xd0 net/socket.c:912 pipe_to_sendpage+0x212/0x430 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x2cb/0x720 fs/splice.c:627 splice_from_pipe+0xbb/0x120 fs/splice.c:662 generic_splice_sendpage+0x10/0x20 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0x71e/0x17e0 fs/splice.c:1408 __x64_sys_splice+0xdc/0x1a0 fs/splice.c:1408 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: 00 84 c9 0f 85 f1 fd ff ff 83 3d 81 00 3a 01 00 0f 85 c2 00 00 00 48 8d 0d 8c 2e 43 00 48 89 88 a8 00 00 00 0f 57 c0 0f 11 84 <24> 90 00 00 00 48 8b 0d 13 db 36 01 48 89 8c 24 90 00 00 00 48 8d RSP: 002b:00007f4d29fc6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665e9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0f0 R13: 00007ffeeff98acf R14: 00007f4d29fc6300 R15: 0000000000022000 INFO: task syz-executor.1:9949 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D28280 9949 8482 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x6f6/0xd20 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x3fb/0x5d0 kernel/sched/completion.c:115 wait_for_completion+0x18/0x20 kernel/sched/completion.c:136 crypto_wait_req include/linux/crypto.h:517 [inline] tls_do_encryption net/tls/tls_sw.c:193 [inline] tls_push_record+0xe65/0x15f0 net/tls/tls_sw.c:228 tls_sw_sendpage+0x462/0xc00 net/tls/tls_sw.c:585 inet_sendpage+0x122/0x600 net/ipv4/af_inet.c:815 kernel_sendpage+0x60/0xd0 net/socket.c:3585 sock_sendpage+0x6d/0xd0 net/socket.c:912 pipe_to_sendpage+0x212/0x430 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x2cb/0x720 fs/splice.c:627 splice_from_pipe+0xbb/0x120 fs/splice.c:662 generic_splice_sendpage+0x10/0x20 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0x71e/0x17e0 fs/splice.c:1408 __x64_sys_splice+0xdc/0x1a0 fs/splice.c:1408 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: 00 84 c9 0f 85 f1 fd ff ff 83 3d 81 00 3a 01 00 0f 85 c2 00 00 00 48 8d 0d 8c 2e 43 00 48 89 88 a8 00 00 00 0f 57 c0 0f 11 84 <24> 90 00 00 00 48 8b 0d 13 db 36 01 48 89 8c 24 90 00 00 00 48 8d RSP: 002b:00007f7c31c09188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc2cda6c7f R14: 00007f7c31c09300 R15: 0000000000022000 INFO: task syz-executor.4:9977 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D27992 9977 8475 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x6f6/0xd20 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x3fb/0x5d0 kernel/sched/completion.c:115 wait_for_completion+0x18/0x20 kernel/sched/completion.c:136 crypto_wait_req include/linux/crypto.h:517 [inline] tls_do_encryption net/tls/tls_sw.c:193 [inline] tls_push_record+0xe65/0x15f0 net/tls/tls_sw.c:228 tls_sw_sendpage+0x462/0xc00 net/tls/tls_sw.c:585 inet_sendpage+0x122/0x600 net/ipv4/af_inet.c:815 kernel_sendpage+0x60/0xd0 net/socket.c:3585 sock_sendpage+0x6d/0xd0 net/socket.c:912 pipe_to_sendpage+0x212/0x430 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x2cb/0x720 fs/splice.c:627 splice_from_pipe+0xbb/0x120 fs/splice.c:662 generic_splice_sendpage+0x10/0x20 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0x71e/0x17e0 fs/splice.c:1408 __x64_sys_splice+0xdc/0x1a0 fs/splice.c:1408 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: 00 84 c9 0f 85 f1 fd ff ff 83 3d 81 00 3a 01 00 0f 85 c2 00 00 00 48 8d 0d 8c 2e 43 00 48 89 88 a8 00 00 00 0f 57 c0 0f 11 84 <24> 90 00 00 00 48 8b 0d 13 db 36 01 48 89 8c 24 90 00 00 00 48 8d RSP: 002b:00007fb5457a4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffdc30fd5f R14: 00007fb5457a4300 R15: 0000000000022000 INFO: task syz-executor.3:9979 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28040 9979 8473 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_timeout+0x6f6/0xd20 kernel/time/timer.c:1794 do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common+0x3fb/0x5d0 kernel/sched/completion.c:115 wait_for_completion+0x18/0x20 kernel/sched/completion.c:136 crypto_wait_req include/linux/crypto.h:517 [inline] tls_do_encryption net/tls/tls_sw.c:193 [inline] tls_push_record+0xe65/0x15f0 net/tls/tls_sw.c:228 tls_sw_sendpage+0x462/0xc00 net/tls/tls_sw.c:585 inet_sendpage+0x122/0x600 net/ipv4/af_inet.c:815 kernel_sendpage+0x60/0xd0 net/socket.c:3585 sock_sendpage+0x6d/0xd0 net/socket.c:912 pipe_to_sendpage+0x212/0x430 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x2cb/0x720 fs/splice.c:627 splice_from_pipe+0xbb/0x120 fs/splice.c:662 generic_splice_sendpage+0x10/0x20 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0x71e/0x17e0 fs/splice.c:1408 __x64_sys_splice+0xdc/0x1a0 fs/splice.c:1408 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: 00 84 c9 0f 85 f1 fd ff ff 83 3d 81 00 3a 01 00 0f 85 c2 00 00 00 48 8d 0d 8c 2e 43 00 48 89 88 a8 00 00 00 0f 57 c0 0f 11 84 <24> 90 00 00 00 48 8b 0d 13 db 36 01 48 89 8c 24 90 00 00 00 48 8d RSP: 002b:00007f780e656188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffedfa624af R14: 00007f780e656300 R15: 0000000000022000 Showing all locks held in the system: 2 locks held by kworker/u4:4/234: #0: 00000000553403e4 (&rq->lock){-.-.}, at: idle_balance kernel/sched/fair.c:9702 [inline] #0: 00000000553403e4 (&rq->lock){-.-.}, at: pick_next_task_fair+0x1006/0x1540 kernel/sched/fair.c:6841 #1: 0000000016a7e4f4 (rcu_read_lock){....}, at: cpu_of kernel/sched/sched.h:923 [inline] #1: 0000000016a7e4f4 (rcu_read_lock){....}, at: __update_idle_core+0x3c/0x3f0 kernel/sched/fair.c:6057 1 lock held by khungtaskd/1571: #0: 0000000016a7e4f4 (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x27a kernel/locking/lockdep.c:4443 1 lock held by in:imklog/7808: #0: 00000000338fded4 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 fs/file.c:767 3 locks held by rs:main Q:Reg/7809: #0: 00000000553403e4 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 00000000553403e4 (&rq->lock){-.-.}, at: __schedule+0x1f6/0x1f70 kernel/sched/core.c:3455 #1: 0000000016a7e4f4 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 0000000016a7e4f4 (rcu_read_lock){....}, at: update_curr+0x2cf/0x870 kernel/sched/fair.c:857 #2: 00000000e7523d1c (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_trylock include/linux/fs.h:768 [inline] #2: 00000000e7523d1c (&sb->s_type->i_mutex_key#10){+.+.}, at: ext4_file_write_iter+0x1e2/0xe50 fs/ext4/file.c:238 2 locks held by syz-executor.2/9927: #0: 00000000e90f3e11 (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:77 [inline] #0: 00000000e90f3e11 (&pipe->mutex/1){+.+.}, at: pipe_lock+0x4f/0x60 fs/pipe.c:85 #1: 00000000d65c0ebd (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1510 [inline] #1: 00000000d65c0ebd (sk_lock-AF_INET6){+.+.}, at: tls_sw_sendpage+0x120/0xc00 net/tls/tls_sw.c:525 2 locks held by syz-executor.0/9928: #0: 0000000011adcfe6 (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:77 [inline] #0: 0000000011adcfe6 (&pipe->mutex/1){+.+.}, at: pipe_lock+0x4f/0x60 fs/pipe.c:85 #1: 000000002d029d94 (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1510 [inline] #1: 000000002d029d94 (sk_lock-AF_INET6){+.+.}, at: tls_sw_sendpage+0x120/0xc00 net/tls/tls_sw.c:525 2 locks held by syz-executor.0/9983: #0: 00000000211e64ff (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:77 [inline] #0: 00000000211e64ff (&pipe->mutex/1){+.+.}, at: pipe_lock+0x4f/0x60 fs/pipe.c:85 #1: 00000000cf54f2d4 (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1510 [inline] #1: 00000000cf54f2d4 (sk_lock-AF_INET6){+.+.}, at: tls_sw_sendpage+0x120/0xc00 net/tls/tls_sw.c:525 2 locks held by syz-executor.5/9944: #0: 00000000d5b8a641 (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:77 [inline] #0: 00000000d5b8a641 (&pipe->mutex/1){+.+.}, at: pipe_lock+0x4f/0x60 fs/pipe.c:85 #1: 000000003d0b8df0 (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1510 [inline] #1: 000000003d0b8df0 (sk_lock-AF_INET6){+.+.}, at: tls_sw_sendpage+0x120/0xc00 net/tls/tls_sw.c:525 2 locks held by syz-executor.5/9985: #0: 0000000077989fce (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:77 [inline] #0: 0000000077989fce (&pipe->mutex/1){+.+.}, at: pipe_lock+0x4f/0x60 fs/pipe.c:85 #1: 00000000b58d1c1c (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1510 [inline] #1: 00000000b58d1c1c (sk_lock-AF_INET6){+.+.}, at: tls_sw_sendpage+0x120/0xc00 net/tls/tls_sw.c:525 2 locks held by syz-executor.1/9949: #0: 0000000016c4cacb (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:77 [inline] #0: 0000000016c4cacb (&pipe->mutex/1){+.+.}, at: pipe_lock+0x4f/0x60 fs/pipe.c:85 #1: 0000000057fb32fa (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1510 [inline] #1: 0000000057fb32fa (sk_lock-AF_INET6){+.+.}, at: tls_sw_sendpage+0x120/0xc00 net/tls/tls_sw.c:525 2 locks held by syz-executor.4/9977: #0: 00000000bccc75e4 (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:77 [inline] #0: 00000000bccc75e4 (&pipe->mutex/1){+.+.}, at: pipe_lock+0x4f/0x60 fs/pipe.c:85 #1: 000000001ab9f2a3 (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1510 [inline] #1: 000000001ab9f2a3 (sk_lock-AF_INET6){+.+.}, at: tls_sw_sendpage+0x120/0xc00 net/tls/tls_sw.c:525 2 locks held by syz-executor.3/9979: #0: 00000000d009bde1 (&pipe->mutex/1){+.+.}, at: pipe_lock_nested fs/pipe.c:77 [inline] #0: 00000000d009bde1 (&pipe->mutex/1){+.+.}, at: pipe_lock+0x4f/0x60 fs/pipe.c:85 #1: 00000000f373da1f (sk_lock-AF_INET6){+.+.}, at: lock_sock include/net/sock.h:1510 [inline] #1: 00000000f373da1f (sk_lock-AF_INET6){+.+.}, at: tls_sw_sendpage+0x120/0xc00 net/tls/tls_sw.c:525 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1571 Comm: khungtaskd Not tainted 4.19.208-syzkaller #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+0x17c/0x226 lib/dump_stack.c:118 nmi_cpu_backtrace.cold.0+0x3c/0x78 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0xf6/0x120 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x5c3/0xb40 kernel/hung_task.c:287 kthread+0x347/0x410 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4678 Comm: systemd-journal Not tainted 4.19.208-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_preemption_disabled+0x1/0x230 lib/smp_processor_id.c:12 Code: 8b 44 fe 4c 8b 85 60 ff ff ff e9 14 f0 ff ff 4c 89 85 60 ff ff ff e8 8e 8a 44 fe 4c 8b 85 60 ff ff ff e9 df ef ff ff 90 90 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 08 65 8b 1d 78 37 ba RSP: 0018:ffff8880a1e47b00 EFLAGS: 00000006 RAX: dffffc0000000000 RBX: 000000000002ea68 RCX: ffff88813fffb000 RDX: 1ffff11027fff6e3 RSI: ffffffff885024a0 RDI: ffffffff885024e0 RBP: ffff8880a1e47b10 R08: 1ffff1101549da00 R09: ffffed101549da00 R10: fffffbfff179dd19 R11: ffffffff8bcee8cb R12: 0000000000000000 R13: 00000000000006c0 R14: ffffea0002a93b40 R15: 0000000000000010 FS: 00007f26c176c8c0(0000) GS:ffff8880ba300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f26bec19000 CR3: 00000000a1ec3000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: free_unref_page_commit+0x108/0x3c0 mm/page_alloc.c:2795 free_unref_page+0xae/0x160 mm/page_alloc.c:2816 free_the_page mm/page_alloc.c:4459 [inline] __free_pages+0x6d/0xb0 mm/page_alloc.c:4467 kmem_freepages.isra.7+0x426/0x640 mm/slab.c:1459 slab_destroy+0x24/0x60 mm/slab.c:1713 slabs_destroy+0x6b/0x90 mm/slab.c:1729 cache_flusharray mm/slab.c:3490 [inline] ___cache_free+0x276/0x380 mm/slab.c:3532 qlink_free mm/kasan/quarantine.c:147 [inline] qlist_free_all+0x85/0x120 mm/kasan/quarantine.c:166 quarantine_reduce+0x167/0x1a0 mm/kasan/quarantine.c:259 kasan_kmalloc+0x9b/0xc0 mm/kasan/kasan.c:538 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x11b/0x390 mm/slab.c:3557 getname_flags+0xb8/0x510 fs/namei.c:140 getname+0xd/0x10 fs/namei.c:211 do_sys_open+0x14b/0x350 fs/open.c:1079 __do_sys_open fs/open.c:1103 [inline] __se_sys_open fs/open.c:1098 [inline] __x64_sys_open+0x79/0xb0 fs/open.c:1098 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f26c0cfb840 Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 RSP: 002b:00007fffd81b4508 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fffd81b4810 RCX: 00007f26c0cfb840 RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 00005628dd997750 RBP: 000000000000000d R08: 00000000000003c0 R09: 00000000ffffffff R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff R13: 00005628dd993040 R14: 00007fffd81b47d0 R15: 00005628dd9a0740 ---------------- Code disassembly (best guess): 0: 8b 44 fe 4c mov 0x4c(%rsi,%rdi,8),%eax 4: 8b 85 60 ff ff ff mov -0xa0(%rbp),%eax a: e9 14 f0 ff ff jmpq 0xfffff023 f: 4c 89 85 60 ff ff ff mov %r8,-0xa0(%rbp) 16: e8 8e 8a 44 fe callq 0xfe448aa9 1b: 4c 8b 85 60 ff ff ff mov -0xa0(%rbp),%r8 22: e9 df ef ff ff jmpq 0xfffff006 27: 90 nop 28: 90 nop 29: 55 push %rbp * 2a: 48 89 e5 mov %rsp,%rbp <-- trapping instruction 2d: 41 57 push %r15 2f: 41 56 push %r14 31: 41 55 push %r13 33: 41 54 push %r12 35: 53 push %rbx 36: 48 83 ec 08 sub $0x8,%rsp 3a: 65 gs 3b: 8b .byte 0x8b 3c: 1d .byte 0x1d 3d: 78 37 js 0x76 3f: ba .byte 0xba