audit: type=1326 audit(1676420422.268:145): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=24518 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=321 compat=0 ip=0x7efc164a90f9 code=0x7ffc0000 audit: type=1326 audit(1676420422.268:146): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=24518 comm="syz-executor.2" exe="/root/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7efc164a90f9 code=0x7ffc0000 INFO: task syz-executor.3:20837 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 D23536 20837 8172 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 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 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 inode_lock include/linux/fs.h:748 [inline] f2fs_file_write_iter+0x218/0xbe0 fs/f2fs/file.c:2996 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: 0033:0x7fe5576cd0f9 Code: Bad RIP value. RSP: 002b:00007fe55181e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe5577ed050 RCX: 00007fe5576cd0f9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007fe557728ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6d8598cf R14: 00007fe55181e300 R15: 0000000000022000 INFO: task syz-executor.3:20840 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 D25856 20840 8172 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_vm_page_mkwrite+0x7b1/0x1820 fs/f2fs/file.c:76 do_page_mkwrite+0xd4/0x410 mm/memory.c:2486 wp_page_shared mm/memory.c:2794 [inline] do_wp_page+0x980/0x2210 mm/memory.c:2894 handle_pte_fault mm/memory.c:4191 [inline] __handle_mm_fault+0x258b/0x41c0 mm/memory.c:4299 handle_mm_fault+0x436/0xb10 mm/memory.c:4336 __do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20 arch/x86/lib/copy_user_64.S:181 Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 0f 1f 80 00 00 00 00 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 01 ca c3 66 2e 0f 1f 84 00 00 00 00 00 0f 01 cb 83 RSP: 0018:ffff8880535b79e0 EFLAGS: 00050206 RAX: ffffed1016024200 RBX: 0000000000001000 RCX: 0000000000000080 RDX: 0000000000001000 RSI: ffff8880b0120f80 RDI: 00000000202ca000 RBP: 00000000202c9080 R08: 0000000000000000 R09: ffffed10160241ff R10: ffff8880b0120fff R11: 0000000000000000 R12: ffff8880b0120000 R13: 00000000202ca080 R14: 00007ffffffff000 R15: 0000000000000000 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:128 [inline] copyout+0xcd/0xf0 lib/iov_iter.c:137 copy_page_to_iter_iovec lib/iov_iter.c:206 [inline] copy_page_to_iter+0x3ac/0xe00 lib/iov_iter.c:853 generic_file_buffered_read mm/filemap.c:2208 [inline] generic_file_read_iter+0x9f6/0x2b60 mm/filemap.c:2385 call_read_iter include/linux/fs.h:1815 [inline] do_iter_readv_writev+0x569/0x790 fs/read_write.c:679 do_iter_read+0x26f/0x630 fs/read_write.c:923 vfs_readv+0xe5/0x150 fs/read_write.c:987 f2fs_msg: 3479 callbacks suppressed 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 do_preadv fs/read_write.c:1071 [inline] __do_sys_preadv fs/read_write.c:1121 [inline] __se_sys_preadv fs/read_write.c:1116 [inline] __x64_sys_preadv+0x22b/0x310 fs/read_write.c:1116 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 entry_SYSCALL_64_after_hwframe+0x49/0xbe F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 RIP: 0033:0x7fe5576cd0f9 Code: Bad RIP value. RSP: 002b:00007fe5517fd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 RAX: ffffffffffffffda RBX: 00007fe5577ed120 RCX: 00007fe5576cd0f9 F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 RDX: 0000000000000005 RSI: 00000000200015c0 RDI: 0000000000000009 F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 RBP: 00007fe557728ae9 R08: 0000000000000000 R09: 0000000000000000 F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6d8598cf R14: 00007fe5517fd300 R15: 0000000000022000 F2FS-fs (loop3): sanity_check_inode: inode (ino=8) has corrupted i_extra_isize: 36, max: 24 Showing all locks held in the system: 2 locks held by kworker/1:1/33: 4 locks held by kworker/u4:2/117: #0: 00000000d652ccbb ((wq_completion)"writeback"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000006099255f ((work_completion)(&(&wb->dwork)->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 000000006d715ad5 (&type->s_umount_key#58){++++}, at: trylock_super+0x1d/0x100 fs/super.c:412 #3: 000000002040b496 (&sbi->gc_mutex){+.+.}, at: f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 1 lock held by khungtaskd/1569: #0: 00000000e9c1d0b9 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7763: #0: 000000000dd69ec1 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by syz-executor.3/20778: 2 locks held by syz-executor.3/20837: #0: 00000000c7b6bcdb (sb_writers#17){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline] #0: 00000000c7b6bcdb (sb_writers#17){.+.+}, at: do_sendfile+0x97d/0xc30 fs/read_write.c:1446 #1: 0000000054f08d57 (&sb->s_type->i_mutex_key#24){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 0000000054f08d57 (&sb->s_type->i_mutex_key#24){+.+.}, at: f2fs_file_write_iter+0x218/0xbe0 fs/f2fs/file.c:2996 3 locks held by syz-executor.3/20840: #0: 00000000828614f3 (&mm->mmap_sem){++++}, at: __do_page_fault+0x398/0xd60 arch/x86/mm/fault.c:1341 #1: 000000006a029c93 (sb_pagefaults#2){.+.+}, at: sb_start_pagefault include/linux/fs.h:1608 [inline] #1: 000000006a029c93 (sb_pagefaults#2){.+.+}, at: f2fs_vm_page_mkwrite+0x20f/0x1820 fs/f2fs/file.c:61 #2: 000000002040b496 (&sbi->gc_mutex){+.+.}, at: f2fs_balance_fs+0x709/0xd80 fs/f2fs/segment.c:512 1 lock held by syz-executor.1/24577: #0: 000000009c3ed5c6 (rcu_preempt_state.barrier_mutex){+.+.}, at: _rcu_barrier+0x59/0x3e0 kernel/rcu/tree.c:3430 ============================================= 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 01/21/2023 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: 24556 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 RIP: 0010:lock_acquire+0x46/0x3c0 kernel/locking/lockdep.c:3900 Code: 89 f4 55 48 89 fd 53 65 48 8b 1c 25 c0 df 01 00 48 8d bb 84 08 00 00 48 83 ec 18 48 89 fa 4c 89 0c 24 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 bd 02 00 00 8b RSP: 0018:ffff8880a36275c0 EFLAGS: 00000a07 RAX: dffffc0000000000 RBX: ffff88809ac7a0c0 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88809ac7a944 RBP: ffffffff89f85fa0 R08: 0000000000000000 R09: 0000000000000000 R10: ffff8880aafe52c0 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000 FS: 00007f784fe93700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020200000 CR3: 0000000094130000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_acquire include/linux/rcupdate.h:242 [inline] rcu_read_lock include/linux/rcupdate.h:627 [inline] get_mem_cgroup_from_mm+0x89/0x440 mm/memcontrol.c:842 mem_cgroup_try_charge+0x29a/0xb80 mm/memcontrol.c:6000 __add_to_page_cache_locked+0x2a6/0xb60 mm/filemap.c:862 add_to_page_cache_lru+0x16a/0x680 mm/filemap.c:928 pagecache_get_page+0x478/0xd50 mm/filemap.c:1611 grab_cache_page_write_begin+0x6a/0xa0 mm/filemap.c:3120 ext4_da_write_begin+0x2ba/0x10e0 fs/ext4/inode.c:3075 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295 ext4_file_write_iter+0x2fe/0xf20 fs/ext4/file.c:272 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: 0033:0x7f78519210f9 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:00007f784fe93168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f7851a40f80 RCX: 00007f78519210f9 RDX: 000000000208e24b RSI: 0000000020000000 RDI: 0000000000000007 RBP: 00007f785197cae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff6a164a3f R14: 00007f784fe93300 R15: 0000000000022000