bridge0: port 1(bridge_slave_0) entered disabled state device veth1_macvtap left promiscuous mode device veth0_macvtap left promiscuous mode device veth1_vlan left promiscuous mode device veth0_vlan left promiscuous mode INFO: task syz-executor.4:14609 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D24296 14609 8107 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 xlog_grant_head_wait+0x13b/0xcd0 fs/xfs/xfs_log.c:263 xlog_grant_head_check+0x2b0/0x420 fs/xfs/xfs_log.c:319 xfs_log_reserve+0x347/0xa70 fs/xfs/xfs_log.c:454 xfs_trans_reserve+0x63a/0x9c0 fs/xfs/xfs_trans.c:197 xfs_trans_alloc+0x2f7/0x700 fs/xfs/xfs_trans.c:289 xfs_vn_update_time+0x243/0x750 fs/xfs/xfs_iops.c:1104 update_time fs/inode.c:1675 [inline] file_update_time+0x316/0x500 fs/inode.c:1890 xfs_file_aio_write_checks+0x429/0x950 fs/xfs/xfs_file.c:371 xfs_file_buffered_aio_write+0x195/0xbf0 fs/xfs/xfs_file.c:635 xfs_file_write_iter+0x346/0x450 fs/xfs/xfs_file.c:726 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x51b/0x770 fs/read_write.c:487 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fb9ace2a0f9 Code: Bad RIP value. RSP: 002b:00007fb9ab39c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fb9acf49f80 RCX: 00007fb9ace2a0f9 RDX: 000000000208e24b RSI: 0000000020000140 RDI: 0000000000000005 RBP: 00007fb9ace85ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe2331b34f R14: 00007fb9ab39c300 R15: 0000000000022000 INFO: task syz-executor.4:14707 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D23216 14707 8107 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 xlog_grant_head_wait+0x13b/0xcd0 fs/xfs/xfs_log.c:263 xlog_grant_head_check+0x3c8/0x420 fs/xfs/xfs_log.c:325 xfs_log_reserve+0x347/0xa70 fs/xfs/xfs_log.c:454 xfs_trans_reserve+0x63a/0x9c0 fs/xfs/xfs_trans.c:197 xfs_trans_alloc+0x2f7/0x700 fs/xfs/xfs_trans.c:289 xfs_attr_set+0x40b/0x740 fs/xfs/libxfs/xfs_attr.c:363 xfs_xattr_set+0xb5/0x120 fs/xfs/xfs_xattr.c:81 __vfs_setxattr+0x10e/0x170 fs/xattr.c:149 __vfs_setxattr_noperm+0x11a/0x420 fs/xattr.c:180 __vfs_setxattr_locked+0x176/0x250 fs/xattr.c:238 vfs_setxattr+0xe5/0x270 fs/xattr.c:255 setxattr+0x23d/0x330 fs/xattr.c:520 path_setxattr+0x170/0x190 fs/xattr.c:539 __do_sys_setxattr fs/xattr.c:554 [inline] __se_sys_setxattr fs/xattr.c:550 [inline] __x64_sys_setxattr+0xc0/0x160 fs/xattr.c:550 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fb9ace2a0f9 Code: Bad RIP value. RSP: 002b:00007fb9a4f7b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007fb9acf4a050 RCX: 00007fb9ace2a0f9 RDX: 0000000020004900 RSI: 00000000200000c0 RDI: 0000000020000080 RBP: 00007fb9ace85ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000c001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe2331b34f R14: 00007fb9a4f7b300 R15: 0000000000022000 Showing all locks held in the system: 4 locks held by kworker/u4:3/134: 1 lock held by khungtaskd/1570: #0: 0000000091384095 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 2 locks held by kworker/u4:4/3569: #0: 00000000b9f9f487 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 00000000b9f9f487 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 #1: 0000000091384095 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 0000000091384095 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857 1 lock held by in:imklog/7895: #0: 00000000c6f462a7 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by kworker/0:3/9310: #0: 00000000fda16385 ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000001fbbe498 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000002f9646d5 (rtnl_mutex){+.+.}, at: addrconf_dad_work+0x9c/0x10a0 net/ipv6/addrconf.c:3989 3 locks held by kworker/0:4/9311: #0: 000000008d17f0ed ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000f075240f (deferred_process_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000002f9646d5 (rtnl_mutex){+.+.}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:150 2 locks held by kworker/0:5/12140: #0: 0000000095964353 ((wq_completion)"xfs-sync/%s"mp->m_fsname){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000004cc2c6af ((work_completion)(&(&log->l_work)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 3 locks held by kworker/1:6/14181: #0: 000000008d17f0ed ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000dc3481fd ((linkwatch_work).work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000002f9646d5 (rtnl_mutex){+.+.}, at: linkwatch_event+0xb/0x60 net/core/link_watch.c:236 2 locks held by kworker/1:32/14224: #0: 00000000ed6198bb ((wq_completion)"xfs-sync/%s"mp->m_fsname){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000004f9318df ((work_completion)(&(&log->l_work)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 3 locks held by kworker/1:33/14227: #0: 00000000fda16385 ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000f03f927a ((work_completion)(&(&ifa->dad_work)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000002f9646d5 (rtnl_mutex){+.+.}, at: addrconf_dad_work+0x9c/0x10a0 net/ipv6/addrconf.c:3989 4 locks held by syz-executor.4/14609: #0: 0000000061667df5 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 #1: 0000000085db121f (sb_writers#21){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline] #1: 0000000085db121f (sb_writers#21){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548 #2: 000000009fa39295 (&sb->s_type->i_mutex_key#26){++++}, at: xfs_ilock+0x2fe/0x440 fs/xfs/xfs_inode.c:186 #3: 00000000c37f6044 (sb_internal#4){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #3: 00000000c37f6044 (sb_internal#4){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 3 locks held by syz-executor.4/14707: #0: 0000000085db121f (sb_writers#21){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 0000000085db121f (sb_writers#21){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 000000004f7da7ac (&inode->i_sb->s_type->i_mutex_dir_key){++++}, at: inode_lock include/linux/fs.h:748 [inline] #1: 000000004f7da7ac (&inode->i_sb->s_type->i_mutex_dir_key){++++}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:254 #2: 00000000c37f6044 (sb_internal#4){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #2: 00000000c37f6044 (sb_internal#4){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 3 locks held by syz-executor.2/14817: #0: 00000000fc27c77a (sb_writers#21){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000fc27c77a (sb_writers#21){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 00000000a76a216b (&inode->i_sb->s_type->i_mutex_dir_key){++++}, at: inode_lock include/linux/fs.h:748 [inline] #1: 00000000a76a216b (&inode->i_sb->s_type->i_mutex_dir_key){++++}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:254 #2: 00000000232f66a5 (sb_internal#4){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #2: 00000000232f66a5 (sb_internal#4){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 4 locks held by syz-executor.2/14864: #0: 00000000fe2239e7 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 #1: 00000000fc27c77a (sb_writers#21){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline] #1: 00000000fc27c77a (sb_writers#21){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548 #2: 00000000747c7329 (&sb->s_type->i_mutex_key#26){++++}, at: xfs_ilock+0x2fe/0x440 fs/xfs/xfs_inode.c:186 #3: 00000000232f66a5 (sb_internal#4){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline] #3: 00000000232f66a5 (sb_internal#4){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271 1 lock held by syz-executor.5/16690: #0: 000000002f9646d5 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 000000002f9646d5 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779 1 lock held by syz-executor.1/16805: #0: 000000002f9646d5 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 000000002f9646d5 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 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+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4681 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 RIP: 0010:match_held_lock kernel/locking/lockdep.c:3480 [inline] RIP: 0010:__lock_is_held+0x94/0x160 kernel/locking/lockdep.c:3728 Code: 8d 7b 22 48 89 f8 48 c1 e8 03 42 0f b6 14 28 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 b5 00 00 00 66 f7 43 22 f0 ff <74> 0f 4c 89 f6 48 89 df e8 af f7 ff ff 85 c0 75 2f 83 c5 01 41 39 RSP: 0018:ffff8880a14bf8a8 EFLAGS: 00000046 RAX: 0000000000000003 RBX: ffff8880a14b6b48 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff8880a14b6b6a RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880a14b6b48 R13: dffffc0000000000 R14: ffffffff89f85f20 R15: ffff8880a14b62c0 FS: 00007f47665198c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4763a5a008 CR3: 00000000a1bae000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_is_held_type+0x10d/0x210 kernel/locking/lockdep.c:3946 lock_is_held include/linux/lockdep.h:344 [inline] rcu_read_lock_sched_held+0x16c/0x1d0 kernel/rcu/update.c:118 trace_mm_page_alloc_zone_locked include/trace/events/kmem.h:247 [inline] __rmqueue mm/page_alloc.c:2484 [inline] rmqueue mm/page_alloc.c:3034 [inline] get_page_from_freelist+0x30e0/0x4170 mm/page_alloc.c:3373 __alloc_pages_nodemask+0x387/0x2890 mm/page_alloc.c:4399 __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] kmem_getpages mm/slab.c:1412 [inline] cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682 cache_alloc_refill+0x273/0x340 mm/slab.c:3049 ____cache_alloc mm/slab.c:3132 [inline] __do_cache_alloc mm/slab.c:3354 [inline] slab_alloc mm/slab.c:3389 [inline] kmem_cache_alloc+0x346/0x370 mm/slab.c:3557 getname_flags+0xce/0x590 fs/namei.c:140 user_path_at_empty+0x2a/0x50 fs/namei.c:2609 user_path_at include/linux/namei.h:57 [inline] do_faccessat+0x248/0x7a0 fs/open.c:397 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f47657d49c7 Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007ffd933a2158 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00007ffd933a5180 RCX: 00007f47657d49c7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000561794d4a9a3 RBP: 00007ffd933a22a0 R08: 0000561794d403e5 R09: 0000000000000018 R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00005617968238a0 R15: 00007ffd933a2790