audit: type=1400 audit(1580188621.648:41): avc: denied { map } for pid=7014 comm="sh" path="/bin/dash" dev="sda1" ino=1473 scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 INFO: task syz-executor.1:6945 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D27512 6945 6765 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007fb7828f2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb7828f36d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff INFO: task syz-executor.4:6968 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D27512 6968 6772 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007fb26826dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb26826e6d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff INFO: task syz-executor.4:6981 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D27048 6981 6772 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007fb26824cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb26824d6d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff INFO: task syz-executor.2:6970 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D27512 6970 6767 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007f58c2d16c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f58c2d176d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff INFO: task syz-executor.2:6983 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D27048 6983 6767 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007f58c2cf5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f58c2cf66d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff INFO: task syz-executor.5:6980 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D27512 6980 6771 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007f19f7f33c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f19f7f346d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff INFO: task syz-executor.5:6996 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D27048 6996 6771 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007f19f7f12c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f19f7f136d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff INFO: task syz-executor.0:6978 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D27512 6978 6769 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007fac4e779c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac4e77a6d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff INFO: task syz-executor.0:6992 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D27048 6992 6769 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007fac4e758c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac4e7596d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff INFO: task syz-executor.3:6979 blocked for more than 140 seconds. Not tainted 4.14.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D27512 6979 6762 0x00000004 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x786/0x1d30 kernel/sched/core.c:3384 schedule+0x7f/0x1b0 kernel/sched/core.c:3428 schedule_timeout+0x6ea/0xcc0 kernel/time/timer.c:1723 do_wait_for_common kernel/sched/completion.c:91 [inline] __wait_for_common kernel/sched/completion.c:112 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0x263/0x440 kernel/sched/completion.c:144 af_alg_wait_for_completion+0x1f/0x90 crypto/af_alg.c:493 _aead_recvmsg crypto/algif_aead.c:314 [inline] aead_recvmsg+0x1193/0x2680 crypto/algif_aead.c:335 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg+0xb9/0xf0 net/socket.c:826 sock_read_iter+0x237/0x410 net/socket.c:903 call_read_iter include/linux/fs.h:1771 [inline] do_iter_readv_writev+0x3c9/0x910 fs/read_write.c:673 do_iter_read+0x1de/0x5a0 fs/read_write.c:917 vfs_readv+0xb6/0x110 fs/read_write.c:981 do_readv+0x10d/0x320 fs/read_write.c:1014 SYSC_readv fs/read_write.c:1101 [inline] SyS_readv+0xb/0x10 fs/read_write.c:1098 do_syscall_64+0x1c9/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x458c29 RSP: 002b:00007f63dbc9ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f63dbc9f6d4 R13: 00000000004c5985 R14: 00000000004d9fe0 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1001: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4544 1 lock held by rsyslogd/6529: #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0x8e/0xc0 fs/file.c:769 2 locks held by getty/6652: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x18f0 drivers/tty/n_tty.c:2156 2 locks held by getty/6653: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x18f0 drivers/tty/n_tty.c:2156 2 locks held by getty/6654: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x18f0 drivers/tty/n_tty.c:2156 2 locks held by getty/6655: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x18f0 drivers/tty/n_tty.c:2156 2 locks held by getty/6656: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x18f0 drivers/tty/n_tty.c:2156 2 locks held by getty/6657: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x18f0 drivers/tty/n_tty.c:2156 2 locks held by getty/6658: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:376 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x18f0 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.1/6945: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.4/6968: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.4/6981: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.2/6970: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.2/6983: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.5/6980: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.5/6996: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.0/6978: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.0/6992: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.3/6979: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 1 lock held by syz-executor.3/6999: #0: (sk_lock-AF_ALG){+.+.}, at: [] lock_sock include/net/sock.h:1467 [inline] #0: (sk_lock-AF_ALG){+.+.}, at: [] af_alg_wait_for_data+0x1ab/0x420 crypto/af_alg.c:800 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1001 Comm: khungtaskd Not tainted 4.14.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xf7/0x13b lib/dump_stack.c:58 nmi_cpu_backtrace.cold.4+0x3e/0x76 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0xe5/0x119 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:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x522/0xb40 kernel/hung_task.c:274 kthread+0x33b/0x410 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:404 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 198 Comm: kworker/u4:3 Not tainted 4.14.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker task: ffff8880a9930140 task.stack: ffff8880a9a48000 RIP: 0010:debug_lockdep_rcu_enabled.part.3+0x26/0x60 kernel/rcu/update.c:300 RSP: 0018:ffff8880a9a4fce8 EFLAGS: 00000a03 RAX: dffffc0000000000 RBX: ffff8880a9930140 RCX: ffff8880a99309c0 RDX: 1ffff11015326137 RSI: ffff8880a9930a10 RDI: ffff8880a99309bc RBP: ffff8880a9a4fcf0 R08: ffff8880a9930a30 R09: 0000000000000000 R10: 0000000000000050 R11: ffff8880a9930140 R12: ffff8880a12fce00 R13: 000000000000037e R14: ffff88809306ed30 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001fa9000 CR3: 00000000a016c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_lockdep_rcu_enabled+0x77/0x90 kernel/rcu/update.c:299 rcu_read_lock include/linux/rcupdate.h:630 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:416 [inline] batadv_nc_worker+0xf4/0x630 net/batman-adv/network-coding.c:726 process_one_work+0x7a3/0x16c0 kernel/workqueue.c:2114 worker_thread+0xcc/0xee0 kernel/workqueue.c:2248 kthread+0x33b/0x410 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:404 Code: 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 65 48 8b 1c 25 40 ee 01 00 48 8d bb 7c 08 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 10