INFO: task syz-executor.3:12791 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 f2fs_msg: 58325 callbacks suppressed F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D29712 12791 8124 0x00000004 Call Trace: F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT schedule+0x8d/0x1b0 kernel/sched/core.c:3561 F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 IPVS: ftp: loaded support on port[0] = 21 F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT inode_lock include/linux/fs.h:748 [inline] do_last fs/namei.c:3324 [inline] path_openat+0x1071/0x2df0 fs/namei.c:3537 F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT F2FS-fs (loop3): Inconsistent segment (6) type [1, 0] in SSA and SIT 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 RIP: 0033:0x7f0a1cf590d9 Code: Bad RIP value. RSP: 002b:00007f0a170aa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f0a1d079050 RCX: 00007f0a1cf590d9 RDX: 0000000000004541 RSI: 0000000020000180 RDI: ffffffffffffff9c RBP: 00007f0a1cfb4ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff005eba4f R14: 00007f0a170aa300 R15: 0000000000022000 Showing all locks held in the system: 4 locks held by kworker/u4:0/7: #0: 00000000e7cd5e21 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000f3d60a32 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000486e3be0 (&type->s_umount_key#48){++++}, at: trylock_super+0x1d/0x100 fs/super.c:412 #3: 0000000041927116 (&sbi->gc_mutex){+.+.}, at: f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 1 lock held by khungtaskd/1569: #0: 00000000736f2863 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 4 locks held by kworker/u4:3/2885: 1 lock held by in:imklog/7794: mmap: syz-executor.5 (18640) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.rst. #0: 000000001223ff4a (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 netlink: 48 bytes leftover after parsing attributes in process `syz-executor.0'. device vlan2 entered promiscuous mode 1 lock held by syz-fuzzer/9818: device vlan0 entered promiscuous mode 2 locks held by kworker/0:3/9332: #0: 00000000551b18a5 ((wq_completion)"rcu_gp"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000027c2fc4c ((work_completion)(&rew.rew_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 5 locks held by syz-executor.3/12740: 2 locks held by syz-executor.3/12791: #0: 0000000070158e18 (sb_writers#18){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 0000000070158e18 (sb_writers#18){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 000000005173c7ef (&type->i_mutex_dir_key#8){++++}, at: inode_lock include/linux/fs.h:748 [inline] #1: 000000005173c7ef (&type->i_mutex_dir_key#8){++++}, at: do_last fs/namei.c:3324 [inline] #1: 000000005173c7ef (&type->i_mutex_dir_key#8){++++}, at: path_openat+0x1071/0x2df0 fs/namei.c:3537 2 locks held by kworker/u4:9/18450: 1 lock held by syz-executor.5/18639: #0: 000000001e40e58d (&mm->mmap_sem){++++}, at: vm_mmap_pgoff+0x152/0x200 mm/util.c:355 1 lock held by syz-executor.5/18640: 1 lock held by syz-executor.3/18641: #0: 0000000032ecd9d1 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline] #0: 0000000032ecd9d1 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x4dc/0x6f0 kernel/rcu/tree_exp.h:667 1 lock held by syz-executor.0/18647: #0: 00000000d0e4bdb9 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 00000000d0e4bdb9 (rtnl_mutex){+.+.}, at: rtnl_newlink+0x7f9/0x15c0 net/core/rtnetlink.c:3097 2 locks held by syz-executor.0/18655: #0: 00000000d0e4bdb9 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 00000000d0e4bdb9 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779 #1: 0000000032ecd9d1 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline] #1: 0000000032ecd9d1 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x256/0x6f0 kernel/rcu/tree_exp.h:667 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1569 Comm: khungtaskd 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 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 device vlan0 left promiscuous mode 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: 119 Comm: kworker/u4:2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: phy6 ieee80211_iface_work RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:23 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:write_comp_data+0xf/0x70 kernel/kcov.c:122 Code: 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 c3 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 25 c0 df 01 00 <65> 8b 05 7a 59 9f 7e a9 00 01 1f 00 75 4f 8b 86 60 13 00 00 83 f8 RSP: 0018:ffff8880b53e7448 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffff8880b53e7668 RCX: ffffffff878184f4 RDX: 0000000000000001 RSI: ffff8880b53d8340 RDI: 0000000000000005 RBP: ffff88809ef82610 R08: 0000000000480020 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880498c9360 R13: 000000000000004c R14: 0000000000000001 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560921bbc0e8 CR3: 00000000aa62e000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: trace_cfg80211_inform_bss_frame net/wireless/trace.h:3014 [inline] cfg80211_inform_bss_frame_data+0xaf4/0xeb0 net/wireless/scan.c:1235 ieee80211_bss_info_update+0x42d/0x1800 net/mac80211/scan.c:105 ieee80211_rx_bss_info net/mac80211/ibss.c:1125 [inline] ieee80211_rx_mgmt_probe_beacon+0xb4f/0x15c0 net/mac80211/ibss.c:1607 ieee80211_ibss_rx_queued_mgmt+0xe27/0x18b0 net/mac80211/ibss.c:1634 ieee80211_iface_work+0x5c4/0x8a0 net/mac80211/iface.c:1341 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