netlink: 'syz-executor.2': attribute type 4 has an invalid length. netlink: 'syz-executor.1': attribute type 4 has an invalid length. ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/22347 is trying to acquire lock: 0000000057064891 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: __flush_work+0x51a/0x8b0 kernel/workqueue.c:2932 but task is already holding lock: 000000003115d279 (loop_ctl_mutex){+.+.}, at: loop_control_ioctl+0x7b/0x480 drivers/block/loop.c:2137 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (loop_ctl_mutex){+.+.}: lo_open+0x19/0xd0 drivers/block/loop.c:1771 __blkdev_get+0x372/0x1480 fs/block_dev.c:1494 blkdev_get+0xb0/0x940 fs/block_dev.c:1627 blkdev_open+0x202/0x290 fs/block_dev.c:1788 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x793/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #5 (&bdev->bd_mutex){+.+.}: blkdev_put+0x30/0x520 fs/block_dev.c:1839 btrfs_close_bdev fs/btrfs/volumes.c:1033 [inline] btrfs_close_one_device fs/btrfs/volumes.c:1057 [inline] close_fs_devices.part.0+0x24d/0x8e0 fs/btrfs/volumes.c:1085 close_fs_devices fs/btrfs/volumes.c:1117 [inline] btrfs_close_devices+0x95/0x1f0 fs/btrfs/volumes.c:1103 open_ctree+0x26b/0x61e0 fs/btrfs/disk-io.c:3326 btrfs_fill_super fs/btrfs/super.c:1209 [inline] btrfs_mount_root+0x12e5/0x1830 fs/btrfs/super.c:1613 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount+0x3c/0x60 fs/namespace.c:951 btrfs_mount+0x23a/0xaa0 fs/btrfs/super.c:1681 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #4 (&fs_devs->device_list_mutex){+.+.}: btrfs_finish_chunk_alloc+0x27b/0xf90 fs/btrfs/volumes.c:4938 btrfs_create_pending_block_groups+0x242/0x590 fs/btrfs/extent-tree.c:10134 __btrfs_end_transaction+0x21a/0xb00 fs/btrfs/transaction.c:855 flush_space+0xa41/0xee0 fs/btrfs/extent-tree.c:4861 btrfs_async_reclaim_metadata_space+0x466/0x1050 fs/btrfs/extent-tree.c:4977 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 -> #3 (sb_internal#4){.+.+}: sb_start_intwrite include/linux/fs.h:1626 [inline] start_transaction+0xa37/0xf90 fs/btrfs/transaction.c:528 btrfs_dirty_inode+0xe3/0x210 fs/btrfs/inode.c:6165 btrfs_update_time+0x33b/0x3d0 fs/btrfs/inode.c:6207 update_time fs/inode.c:1675 [inline] touch_atime+0x23c/0x2a0 fs/inode.c:1746 file_accessed include/linux/fs.h:2123 [inline] btrfs_file_mmap+0x11b/0x160 fs/btrfs/file.c:2274 call_mmap include/linux/fs.h:1826 [inline] mmap_region+0xc94/0x16b0 mm/mmap.c:1757 do_mmap+0x8e8/0x1080 mm/mmap.c:1530 do_mmap_pgoff include/linux/mm.h:2329 [inline] vm_mmap_pgoff+0x197/0x200 mm/util.c:357 ksys_mmap_pgoff+0x298/0x5a0 mm/mmap.c:1580 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&mm->mmap_sem){++++}: _copy_to_user+0x29/0x100 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] filldir64+0x26e/0x430 fs/readdir.c:324 dir_emit_dot include/linux/fs.h:3432 [inline] dir_emit_dots include/linux/fs.h:3443 [inline] __fat_readdir+0xef1/0x1490 fs/fat/dir.c:575 iterate_dir+0x473/0x5c0 fs/readdir.c:51 ksys_getdents64+0x175/0x2b0 fs/readdir.c:357 __do_sys_getdents64 fs/readdir.c:376 [inline] __se_sys_getdents64 fs/readdir.c:373 [inline] __x64_sys_getdents64+0x6f/0xb0 fs/readdir.c:373 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&sbi->s_lock){+.+.}: fat_write_inode fs/fat/inode.c:911 [inline] fat_write_inode+0xfa/0x180 fs/fat/inode.c:904 write_inode fs/fs-writeback.c:1244 [inline] __writeback_single_inode+0x733/0x11d0 fs/fs-writeback.c:1442 writeback_sb_inodes+0x537/0xef0 fs/fs-writeback.c:1647 wb_writeback+0x28d/0xcc0 fs/fs-writeback.c:1820 wb_do_writeback fs/fs-writeback.c:1965 [inline] wb_workfn+0x29b/0x1250 fs/fs-writeback.c:2006 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 -> #0 ((work_completion)(&(&wb->dwork)->work)){+.+.}: __flush_work+0x542/0x8b0 kernel/workqueue.c:2921 wb_shutdown+0x172/0x210 mm/backing-dev.c:374 bdi_unregister+0x169/0x610 mm/backing-dev.c:946 del_gendisk+0x7f6/0xa80 block/genhd.c:788 loop_remove drivers/block/loop.c:2066 [inline] loop_control_ioctl drivers/block/loop.c:2165 [inline] loop_control_ioctl+0x3b1/0x480 drivers/block/loop.c:2131 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: (work_completion)(&(&wb->dwork)->work) --> &bdev->bd_mutex --> loop_ctl_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(loop_ctl_mutex); lock(&bdev->bd_mutex); lock(loop_ctl_mutex); lock((work_completion)(&(&wb->dwork)->work)); *** DEADLOCK *** 1 lock held by syz-executor.0/22347: #0: 000000003115d279 (loop_ctl_mutex){+.+.}, at: loop_control_ioctl+0x7b/0x480 drivers/block/loop.c:2137 stack backtrace: CPU: 0 PID: 22347 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2420 [inline] __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __flush_work+0x542/0x8b0 kernel/workqueue.c:2921 wb_shutdown+0x172/0x210 mm/backing-dev.c:374 bdi_unregister+0x169/0x610 mm/backing-dev.c:946 del_gendisk+0x7f6/0xa80 block/genhd.c:788 loop_remove drivers/block/loop.c:2066 [inline] loop_control_ioctl drivers/block/loop.c:2165 [inline] loop_control_ioctl+0x3b1/0x480 drivers/block/loop.c:2131 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7febbe48b0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007febbc9bb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007febbe5ab120 RCX: 00007febbe48b0d9 RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000008 RBP: 00007febbe4e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd52613b5f R14: 00007febbc9bb300 R15: 0000000000022000 IPVS: ftp: loaded support on port[0] = 21 XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Quotacheck needed: Please wait. XFS (loop5): Quotacheck: Done. UDF-fs: bad mount option "audit" or missing value XFS (loop5): Unmounting Filesystem UDF-fs: bad mount option "audit" or missing value UDF-fs: bad mount option "audit" or missing value UDF-fs: bad mount option "audit" or missing value UDF-fs: bad mount option "audit" or missing value nla_parse: 3 callbacks suppressed netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. UDF-fs: bad mount option "audit" or missing value bond1 (uninitialized): Released all slaves ieee80211 ©,í…×: Selected rate control algorithm 'minstrel_ht' UDF-fs: bad mount option "audit" or missing value ieee80211 phy15: Selected rate control algorithm 'minstrel_ht' UDF-fs: bad mount option "audit" or missing value ieee80211 phy16: Selected rate control algorithm 'minstrel_ht' EXT4-fs (loop5): Unrecognized mount option "7pãÏo~µñ.EÕzŽŒñiºÑ5àö¾» Ù’Æ" or missing value UDF-fs: bad mount option "audit" or missing value ieee80211 phy17: Selected rate control algorithm 'minstrel_ht' kauditd_printk_skb: 4 callbacks suppressed audit: type=1804 audit(1670855795.980:201): pid=22734 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir1564827857/syzkaller.OeErw5/479/bus" dev="sda1" ino=15173 res=1 audit: type=1800 audit(1670855795.990:202): pid=22734 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=15173 res=0 UDF-fs: bad mount option "audit" or missing value UDF-fs: bad mount option "audit" or missing value EXT4-fs (loop5): Unrecognized mount option "7pãÏo~µñ.EÕzŽŒñiºÑ5àö¾» Ù’Æ" or missing value EXT4-fs (loop4): Unrecognized mount option "7pãÏo~µñ.EÕzŽŒñiºÑ5àö¾» Ù’Æ" or missing value FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. EXT4-fs (loop5): Unrecognized mount option "7pãÏo~µñ.EÕzŽŒñiºÑ5àö¾» Ù’Æ" or missing value CPU: 1 PID: 22813 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 __should_failslab+0x115/0x180 mm/failslab.c:32 should_failslab+0x5/0x10 mm/slab_common.c:1590 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x2ab/0x3c0 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] __do_sys_memfd_create mm/memfd.c:295 [inline] __se_sys_memfd_create+0xf8/0x440 mm/memfd.c:268 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8b5b32e0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8b5989ff38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000000000a17 RCX: 00007f8b5b32e0d9 RDX: 00007f8b5989ffdc RSI: 0000000000000000 RDI: 00007f8b5b388e81 RBP: 0000000000000a17 R08: 00007f8b5989fe20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000a40 R13: 00007f8b5989ffdc R14: 00007f8b5989ffe0 R15: 0000000020000b00 TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. CPU: 1 PID: 22886 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 __should_failslab+0x115/0x180 mm/failslab.c:32 should_failslab+0x5/0x10 mm/slab_common.c:1590 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x277/0x370 mm/slab.c:3557 shmem_alloc_inode+0x18/0x40 mm/shmem.c:3609 alloc_inode+0x5d/0x180 fs/inode.c:211 new_inode_pseudo fs/inode.c:911 [inline] new_inode+0x1d/0xf0 fs/inode.c:940 shmem_get_inode+0x96/0x8d0 mm/shmem.c:2196 __shmem_file_setup.part.0+0x7a/0x2b0 mm/shmem.c:3965 __shmem_file_setup mm/shmem.c:3959 [inline] shmem_file_setup+0x61/0x90 mm/shmem.c:4006 __do_sys_memfd_create mm/memfd.c:325 [inline] __se_sys_memfd_create+0x26b/0x440 mm/memfd.c:268 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8b5b32e0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8b5989ff38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000000000a17 RCX: 00007f8b5b32e0d9 RDX: 00007f8b5989ffdc RSI: 0000000000000000 RDI: 00007f8b5b388e81 RBP: 0000000000000a17 R08: 00007f8b5989fe20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000a40 R13: 00007f8b5989ffdc R14: 00007f8b5989ffe0 R15: 0000000020000b00 audit: type=1804 audit(1670855797.310:203): pid=22905 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir699710650/syzkaller.BZ0ys3/490/bus" dev="sda1" ino=15249 res=1 audit: type=1800 audit(1670855797.310:204): pid=22905 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=15249 res=0 audit: type=1804 audit(1670855797.600:205): pid=22915 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir778516726/syzkaller.4Pp7tU/448/bus" dev="sda1" ino=15237 res=1 audit: type=1800 audit(1670855797.600:206): pid=22915 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="sda1" ino=15237 res=0 audit: type=1804 audit(1670855799.181:207): pid=22927 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir3843720241/syzkaller.ccWjj9/487/bus" dev="sda1" ino=14920 res=1 audit: type=1800 audit(1670855799.181:208): pid=22927 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=14920 res=0 audit: type=1804 audit(1670855799.211:209): pid=22925 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir1564827857/syzkaller.OeErw5/482/bus" dev="sda1" ino=15252 res=1 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 audit: type=1800 audit(1670855799.211:210): pid=22925 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=15252 res=0 CPU: 0 PID: 22937 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 __should_failslab+0x115/0x180 mm/failslab.c:32 should_failslab+0x5/0x10 mm/slab_common.c:1590 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x277/0x370 mm/slab.c:3557 __d_alloc+0x2b/0xa10 fs/dcache.c:1612 d_alloc_pseudo+0x19/0x70 fs/dcache.c:1743 alloc_file_pseudo+0xc6/0x250 fs/file_table.c:224 __shmem_file_setup.part.0+0x102/0x2b0 mm/shmem.c:3976 __shmem_file_setup mm/shmem.c:3959 [inline] shmem_file_setup+0x61/0x90 mm/shmem.c:4006 __do_sys_memfd_create mm/memfd.c:325 [inline] __se_sys_memfd_create+0x26b/0x440 mm/memfd.c:268 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8b5b32e0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8b5989ff38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000000000a17 RCX: 00007f8b5b32e0d9 RDX: 00007f8b5989ffdc RSI: 0000000000000000 RDI: 00007f8b5b388e81 RBP: 0000000000000a17 R08: 00007f8b5989fe20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000a40 R13: 00007f8b5989ffdc R14: 00007f8b5989ffe0 R15: 0000000020000b00 IPVS: ftp: loaded support on port[0] = 21 kauditd_printk_skb: 8 callbacks suppressed audit: type=1804 audit(1670855801.881:219): pid=22976 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir699710650/syzkaller.BZ0ys3/492/bus" dev="sda1" ino=15262 res=1 audit: type=1800 audit(1670855801.881:220): pid=22976 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=15262 res=0 audit: type=1804 audit(1670855802.001:221): pid=22978 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir1564827857/syzkaller.OeErw5/484/bus" dev="sda1" ino=15263 res=1 audit: type=1800 audit(1670855802.001:222): pid=22978 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=15263 res=0