INFO: task syz-executor.0:29485 blocked for more than 140 seconds. Not tainted 4.14.116 #6 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28976 29485 29464 0x00000000 Call Trace: context_switch kernel/sched/core.c:2807 [inline] __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383 schedule+0x92/0x1c0 kernel/sched/core.c:3427 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline] rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write_nested+0x57/0x90 kernel/locking/rwsem.c:174 inode_lock_nested include/linux/fs.h:750 [inline] SYSC_mq_unlink ipc/mqueue.c:874 [inline] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x2000000d RSP: 002b:00007fa9851a1bd8 EFLAGS: 00000292 ORIG_RAX: 00000000000000f1 RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 000000002000000d audit: type=1326 audit(2000004075.756:1142): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11239 comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45bc0a code=0xffff0000 RDX: a65056c889bd8bc1 RSI: 00000000000000d9 RDI: 0000000020800000 RBP: 0000000000000066 R08: 0000000000000005 R09: 0000000000000006 R10: 0000000000000007 R11: 0000000000000292 R12: 000000000000000b audit: type=1326 audit(2000004075.916:1143): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11241 comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45bc0a code=0xffff0000 R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff INFO: task syz-executor.0:29547 blocked for more than 140 seconds. Not tainted 4.14.116 #6 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. audit: type=1326 audit(2000004076.316:1144): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11254 comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45bc0a code=0xffff0000 syz-executor.0 D29568 29547 29487 0x00000000 Call Trace: context_switch kernel/sched/core.c:2807 [inline] __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383 audit: type=1326 audit(2000004076.556:1145): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11241 comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45bc0a code=0xffff0000 schedule+0x92/0x1c0 kernel/sched/core.c:3427 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline] rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105 audit: type=1326 audit(2000004076.946:1146): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11254 comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45bc0a code=0xffff0000 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write_nested+0x57/0x90 kernel/locking/rwsem.c:174 inode_lock_nested include/linux/fs.h:750 [inline] SYSC_mq_unlink ipc/mqueue.c:874 [inline] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x2000000d RSP: 002b:00007fa9851a1bd8 EFLAGS: 00000292 ORIG_RAX: 00000000000000f1 RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 000000002000000d RDX: a65056c889bd8bc1 RSI: 00000000000000d9 RDI: 0000000020800000 RBP: 0000000000000066 R08: 0000000000000005 R09: 0000000000000006 R10: 0000000000000007 R11: 0000000000000292 R12: 000000000000000b R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff INFO: task syz-executor.0:30137 blocked for more than 140 seconds. Not tainted 4.14.116 #6 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D29568 30137 29746 0x00000000 Call Trace: context_switch kernel/sched/core.c:2807 [inline] __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383 Showing all locks held in the system: 1 lock held by khungtaskd/1008: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4541 2 locks held by getty/7246: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/7247: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/7248: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/7249: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/7250: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/7251: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/7252: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 4 locks held by syz-executor.0/7290: #0: (&dup_mmap_sem){.+.+}, at: [] dup_mmap kernel/fork.c:606 [inline] #0: (&dup_mmap_sem){.+.+}, at: [] dup_mm kernel/fork.c:1199 [inline] #0: (&dup_mmap_sem){.+.+}, at: [] copy_mm kernel/fork.c:1253 [inline] #0: (&dup_mmap_sem){.+.+}, at: [] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755 #1: (&mm->mmap_sem){++++}, at: [] dup_mmap kernel/fork.c:607 [inline] #1: (&mm->mmap_sem){++++}, at: [] dup_mm kernel/fork.c:1199 [inline] #1: (&mm->mmap_sem){++++}, at: [] copy_mm kernel/fork.c:1253 [inline] #1: (&mm->mmap_sem){++++}, at: [] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755 #2: (&mm->mmap_sem/1){+.+.}, at: [] dup_mmap kernel/fork.c:616 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [] dup_mm kernel/fork.c:1199 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [] copy_mm kernel/fork.c:1253 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755 #3: (&mapping->i_mmap_rwsem){++++}, at: [] i_mmap_lock_write include/linux/fs.h:470 [inline] #3: (&mapping->i_mmap_rwsem){++++}, at: [] dup_mmap kernel/fork.c:681 [inline] #3: (&mapping->i_mmap_rwsem){++++}, at: [] dup_mm kernel/fork.c:1199 [inline] #3: (&mapping->i_mmap_rwsem){++++}, at: [] copy_mm kernel/fork.c:1253 [inline] #3: (&mapping->i_mmap_rwsem){++++}, at: [] copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755 2 locks held by syz-executor.5/21587: #0: (&type->s_umount_key#45){++++}, at: [] iterate_supers+0xe1/0x250 fs/super.c:611 #1: (&bdi->wb_switch_rwsem){+.+.}, at: [] bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:336 [inline] #1: (&bdi->wb_switch_rwsem){+.+.}, at: [] sync_inodes_sb+0x150/0x9b0 fs/fs-writeback.c:2445 5 locks held by kworker/u4:2/22657: #0: ("writeback"){+.+.}, at: [] work_static include/linux/workqueue.h:199 [inline] #0: ("writeback"){+.+.}, at: [] set_work_data kernel/workqueue.c:619 [inline] #0: ("writeback"){+.+.}, at: [] set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: ("writeback"){+.+.}, at: [] process_one_work+0x76e/0x1610 kernel/workqueue.c:2085 #1: ((&(&wb->dwork)->work)){+.+.}, at: [] process_one_work+0x7ab/0x1610 kernel/workqueue.c:2089 #2: (&type->s_umount_key#45){++++}, at: [] trylock_super+0x20/0xf0 fs/super.c:402 #3: (&sbi->s_journal_flag_rwsem){.+.+}, at: [] do_writepages+0xd2/0x250 mm/page-writeback.c:2364 #4: (&mapping->i_mmap_rwsem){++++}, at: [] i_mmap_lock_read include/linux/fs.h:480 [inline] #4: (&mapping->i_mmap_rwsem){++++}, at: [] rmap_walk_file+0x43c/0x8b0 mm/rmap.c:1819 2 locks held by syz-executor.0/29437: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29439: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29441: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29442: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29443: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29444: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29445: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29446: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29447: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29448: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29449: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29451: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29453: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29454: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29455: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29456: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29457: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29458: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29459: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29460: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29462: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29463: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29464: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29465: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29466: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29467: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29468: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29469: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29470: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29471: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29472: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29473: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29474: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29475: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29476: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29477: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29478: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29479: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29480: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29481: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29482: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29483: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29485: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29486: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29487: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29489: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29490: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29491: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29492: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29493: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29495: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29496: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29497: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29498: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29499: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29500: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29501: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29502: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29503: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29504: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29505: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29506: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29507: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29508: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29509: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29510: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29511: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29512: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29513: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29514: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29515: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29516: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29517: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29519: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29520: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29521: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29522: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29523: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29524: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29525: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29526: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29527: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29528: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29529: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29530: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29531: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29532: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29533: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29534: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29535: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29536: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29537: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29538: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29539: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29540: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29541: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29542: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29543: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29544: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29545: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29546: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29547: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29548: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29549: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29550: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29551: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29552: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29553: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29554: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29555: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29557: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29556: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29558: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29559: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29560: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29561: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29563: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29564: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29565: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29567: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29568: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29569: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29570: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29571: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29572: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29573: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29574: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29575: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29576: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29577: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29578: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29579: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29580: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29581: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29582: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29583: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29584: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29585: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29586: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29587: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29588: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29589: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29590: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29591: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29592: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29593: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29594: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29595: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29596: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29597: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29598: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29599: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29600: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29601: #0: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1545 [inline] #0: (sb_writers#14){.+.+}, at: [] mnt_want_write+0x3f/0xb0 fs/namespace.c:386 #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] inode_lock_nested include/linux/fs.h:750 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SYSC_mq_unlink ipc/mqueue.c:874 [inline] #1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [] SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857 2 locks held by syz-executor.0/29602: