F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 INFO: task syz-executor.3:9491 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.3 D23648 9491 8154 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 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 f2fs_map_blocks+0x1b44/0x38b0 fs/f2fs/data.c:1203 f2fs_preallocate_blocks+0x2d2/0x650 fs/f2fs/data.c:974 f2fs_file_write_iter+0x38f/0xbe0 fs/f2fs/file.c:3024 call_write_iter include/linux/fs.h:1821 [inline] do_iter_readv_writev+0x668/0x790 fs/read_write.c:681 do_iter_write+0x182/0x5d0 fs/read_write.c:960 vfs_iter_write+0x70/0xa0 fs/read_write.c:973 iter_file_splice_write+0x60d/0xbb0 fs/splice.c:750 do_splice_from fs/splice.c:852 [inline] direct_splice_actor+0x115/0x160 fs/splice.c:1025 splice_direct_to_actor+0x33f/0x8d0 fs/splice.c:980 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa67c87a0f9 Code: Bad RIP value. RSP: 002b:00007fa6769cb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fa67c99a050 RCX: 00007fa67c87a0f9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007fa67c8d5ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff2e77ebaf R14: 00007fa6769cb300 R15: 0000000000022000 Showing all locks held in the system: 4 locks held by kworker/u4:2/104: #0: 0000000087019e54 ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000094cc49d2 ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: trylock_super+0x1d/0x100 fs/super.c:412 #3: 00000000bd628428 (&sbi->gc_mutex){+.+.}, at: f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 2 locks held by kworker/u4:3/304: #0: 00000000f3a4b535 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline] #0: 00000000f3a4b535 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455 #1: 00000000dfdb087f (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 00000000dfdb087f (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857 1 lock held by khungtaskd/1562: #0: 00000000dfdb087f (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7827: #0: 0000000057134d76 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by syz-executor.3/9424: 3 locks held by syz-executor.3/9491: #0: 00000000a2dfc437 (sb_writers#26){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline] #0: 00000000a2dfc437 (sb_writers#26){.+.+}, at: do_sendfile+0x97d/0xc30 fs/read_write.c:1446 #1: 00000000e6ca59ac (&sb->s_type->i_mutex_key#31){+.+.}, at: inode_trylock include/linux/fs.h:768 [inline] #1: 00000000e6ca59ac (&sb->s_type->i_mutex_key#31){+.+.}, at: f2fs_file_write_iter+0x1b6/0xbe0 fs/f2fs/file.c:2993 #2: 00000000bd628428 (&sbi->gc_mutex){+.+.}, at: f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 2 locks held by syz-executor.1/9511: #0: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/9513: #0: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/9519: #0: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/9522: #0: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/9526: #0: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/9564: #0: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/10263: #0: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/10264: #0: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 2 locks held by syz-executor.1/10266: #0: 00000000337f5a0a (&type->s_umount_key#91){++++}, at: iterate_supers+0xdb/0x290 fs/super.c:631 #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:338 [inline] #1: 00000000b1be4b29 (&bdi->wb_switch_rwsem){+.+.}, at: sync_inodes_sb+0x180/0x9a0 fs/fs-writeback.c:2457 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1562 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: 15799 Comm: kworker/u4:8 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Workqueue: phy71 ieee80211_iface_work RIP: 0010:ieee80211_sta_last_active+0x2/0xf0 net/mac80211/sta_info.c:2380 Code: fa e9 df fc ff ff e8 fd bc 00 fa e9 98 fe ff ff e8 83 bd 00 fa e9 3e ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 54 <49> 89 fc 55 53 e8 74 e0 ca f9 4c 89 e7 e8 bc 09 ff ff 49 8d bc 24 RSP: 0018:ffff888046377b70 EFLAGS: 00000293 RAX: ffff88808e900300 RBX: ffff8880b067c6c0 RCX: ffffffff879ae859 RDX: 0000000000000000 RSI: ffffffff879ae741 RDI: ffff8880b067c6c0 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880aa63a940 R13: ffff888044844bf0 R14: 1ffffffff13c1b30 R15: 1ffffffff13c1b30 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa67c87a0cf CR3: 000000009acb0000 CR4: 00000000003406f0 DR0: 0000000000000001 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: ieee80211_sta_active_ibss+0x169/0x350 net/mac80211/ibss.c:673 ieee80211_sta_merge_ibss net/mac80211/ibss.c:1303 [inline] ieee80211_ibss_work+0xae3/0xe10 net/mac80211/ibss.c:1703 ieee80211_iface_work+0x7ba/0x8a0 net/mac80211/iface.c:1362 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