xt_cluster: cannot load conntrack support for proto=7 xt_cluster: cannot load conntrack support for proto=7 INFO: task syz-executor.4:30110 blocked for more than 140 seconds. Not tainted 4.19.118-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D29376 30110 6801 0x00000004 Call Trace: schedule+0x8d/0x1b0 kernel/sched/core.c:3559 request_wait_answer+0x3d9/0x740 fs/fuse/dev.c:485 __fuse_request_send+0x123/0x1c0 fs/fuse/dev.c:505 fuse_simple_request+0x2db/0x6f0 fs/fuse/dev.c:576 fuse_do_getattr+0x226/0xbe0 fs/fuse/dir.c:927 fuse_update_get_attr fs/fuse/dir.c:960 [inline] fuse_getattr+0x261/0x2e0 fs/fuse/dir.c:1838 vfs_getattr_nosec+0xff/0x160 fs/stat.c:79 vfs_getattr+0x49/0x60 fs/stat.c:116 vfs_statx+0x13c/0x1e0 fs/stat.c:189 vfs_fstatat include/linux/fs.h:3140 [inline] __do_sys_newfstatat+0x9d/0x120 fs/stat.c:364 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c829 Code: Bad RIP value. RSP: 002b:00007f08ca5fbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 00000000004f6740 RCX: 000000000045c829 RDX: 0000000000000000 RSI: 0000000020000080 RDI: ffffffffffffff9c RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000772 R14: 00000000004ca25d R15: 00007f08ca5fc6d4 Showing all locks held in the system: 1 lock held by khungtaskd/1079: #0: 0000000077ac20be (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440 1 lock held by in:imklog/6137: #0: 00000000f210484b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xe3/0x100 fs/file.c:767 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1079 Comm: khungtaskd Not tainted 4.19.118-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+0x188/0x20d lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x962/0xe40 kernel/hung_task.c:287 kthread+0x34a/0x420 kernel/kthread.c:246 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: 3683 Comm: systemd-journal Not tainted 4.19.118-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:avc_has_perm_noaudit+0x4f/0x520 security/selinux/avc.c:1138 Code: 4c 8b b4 24 f8 00 00 00 48 c1 e8 03 48 89 3c 24 48 89 44 24 10 48 89 c1 48 b8 00 00 00 00 00 fc ff df 48 01 c8 44 89 4c 24 1c <48> c7 44 24 20 b3 8a b5 41 48 c7 44 24 28 f6 24 90 88 48 c7 44 24 RSP: 0018:ffff888094677810 EFLAGS: 00000286 RAX: ffffed10128cef06 RBX: 0000000000000008 RCX: 1ffff110128cef06 RDX: 0000000000000061 RSI: 0000000000000001 RDI: ffffffff8b9eb4c0 RBP: 0000000000000001 R08: 0000000000800000 R09: 0000000000000004 R10: ffffed101307556c R11: ffff8880983aab60 R12: 0000000000000061 R13: 0000000000800000 R14: ffff888094677940 R15: 0000000000000080 FS: 00007f71a69fd8c0(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f719df78000 CR3: 00000000949c7000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: selinux_inode_permission+0x3bc/0x640 security/selinux/hooks.c:3222 security_inode_permission+0xae/0xf0 security/security.c:704 inode_permission+0x11b/0x550 fs/namei.c:459 may_lookup fs/namei.c:1697 [inline] link_path_walk.part.0+0x1a0/0x1210 fs/namei.c:2085 link_path_walk fs/namei.c:2073 [inline] path_openat+0x1ed/0x4200 fs/namei.c:3536 do_filp_open+0x1a1/0x280 fs/namei.c:3567 do_sys_open+0x3c0/0x500 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f71a5f8d85d Code: 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 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 67 f6 ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fff5fb35b80 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fff5fb35e90 RCX: 00007f71a5f8d85d RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055b4126bd730 RBP: 000000000000000d R08: 00000000000001c0 R09: 00000000ffffffff R10: 0000000000000069 R11: 0000000000000293 R12: 00000000ffffffff R13: 000055b4126af060 R14: 00007fff5fb35e50 R15: 000055b4126bccb0