INFO: task syz-executor.1:5441 blocked for more than 143 seconds. Not tainted 5.8.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D14328 5441 7183 0x00000000 Call Trace: context_switch kernel/sched/core.c:3458 [inline] __schedule+0x3fc/0x870 kernel/sched/core.c:4219 schedule+0x37/0xe0 kernel/sched/core.c:4294 rwsem_down_write_slowpath+0x373/0x680 kernel/locking/rwsem.c:1235 inode_lock include/linux/fs.h:800 [inline] vfs_setxattr+0x50/0xa0 fs/xattr.c:219 setxattr+0x136/0x1c0 fs/xattr.c:451 path_setxattr+0xb9/0xd0 fs/xattr.c:470 __do_sys_setxattr fs/xattr.c:485 [inline] __se_sys_setxattr fs/xattr.c:481 [inline] __x64_sys_setxattr+0x22/0x30 fs/xattr.c:481 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: Bad RIP value. RSP: 002b:00007fccbff5dc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00000000000324c0 RCX: 000000000045d5b9 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 00000000200000c0 RBP: 000000000118d0d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118d08c R13: 00007ffdc1ec4f5f R14: 00007fccbff5e9c0 R15: 000000000118d08c Showing all locks held in the system: 1 lock held by khungtaskd/524: #0: ffffffff842e0540 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x15/0x17a kernel/locking/lockdep.c:5780 2 locks held by kworker/1:41/2643: #0: ffff88812bc26338 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline] #0: ffff88812bc26338 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff88812bc26338 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x1de/0x5f0 kernel/workqueue.c:2240 #1: ffffc90005763e70 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline] #1: ffffc90005763e70 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #1: ffffc90005763e70 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x1de/0x5f0 kernel/workqueue.c:2240 1 lock held by in:imklog/6602: #0: ffff88812a72d2f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x45/0x50 fs/file.c:826 1 lock held by syz-executor.2/7180: #0: ffffffff842e1e60 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #0: ffffffff842e1e60 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x118/0x430 kernel/rcu/tree_exp.h:838 1 lock held by syz-executor.0/7187: #0: ffffffff842e1e60 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #0: ffffffff842e1e60 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x35f/0x430 kernel/rcu/tree_exp.h:838 2 locks held by syz-executor.2/8786: #0: ffff8881226ff450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881226ff450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88811bbbf250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88811bbbf250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/9442: #0: ffff888106c2e450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888106c2e450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88810d4bf310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88810d4bf310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/11605: #0: ffff8880aeb98450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880aeb98450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880bb2c5710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880bb2c5710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/11901: #0: ffff8880aabd6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880aabd6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880bb2624d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880bb2624d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/12190: #0: ffff8880a313f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880a313f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3c06390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3c06390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/12271: #0: ffff8880a6fbf450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880a6fbf450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3c2e9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3c2e9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/12390: #0: ffff8880a6fdd450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880a6fdd450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3c32490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3c32490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/12404: #0: ffff8880a326d450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880a326d450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3c4a550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3c4a550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/12993: #0: ffff88809c1f1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88809c1f1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3d4b190 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3d4b190 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/13101: #0: ffff88809fecd450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88809fecd450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3d29510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3d29510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/14114: #0: ffff8880908ea450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880908ea450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3eff550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3eff550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/14236: #0: ffff88809088f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88809088f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3f0e7d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3f0e7d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/15159: #0: ffff88808d29a450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88808d29a450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888089436710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888089436710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/15182: #0: ffff888085dc4450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888085dc4450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888089466290 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888089466290 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/15309: #0: ffff888082928450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888082928450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880894ea450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880894ea450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/15542: #0: ffff888082b27450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888082b27450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888089583850 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888089583850 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/16734: #0: ffff888073ca8450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888073ca8450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88808972c9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88808972c9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/16909: #0: ffff888073d32450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888073d32450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880897ad510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880897ad510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/17050: #0: ffff88807045b450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88807045b450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880897d5250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880897d5250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/17149: #0: ffff888070515450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888070515450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888070013390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888070013390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/18502: #0: ffff888061a58450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888061a58450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88807023a190 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88807023a190 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/19058: #0: ffff88805de99450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88805de99450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880702ddb10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880702ddb10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/20423: #0: ffff88804f2b6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88804f2b6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888055538a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888055538a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/20608: #0: ffff88804b97f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88804b97f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888055552490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888055552490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/20673: #0: ffff88804ba92450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88804ba92450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880555a5250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880555a5250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/21944: #0: ffff8880406b7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880406b7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88803b418550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88803b418550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/22239: #0: ffff88803cfc8450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88803cfc8450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88803b485410 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88803b485410 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/22652: #0: ffff88803541f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88803541f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88803b4d17d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88803b4d17d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/25158: #0: ffff88801f2b7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88801f2b7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880208e8710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880208e8710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/25721: #0: ffff8880174f2450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880174f2450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880209f1790 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880209f1790 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/29180: #0: ffff8882130b1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882130b1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888218bff950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888218bff950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/29265: #0: ffff8882130dd450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882130dd450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88821384f750 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88821384f750 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/29526: #0: ffff888213134450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888213134450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888213842510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888213842510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/30256: #0: ffff888212245450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888212245450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888213953150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888213953150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/31492: #0: ffff888100159450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888100159450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888213bb9210 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888213bb9210 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/32477: #0: ffff88820ec48450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820ec48450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888213bc9890 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888213bc9890 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/313: #0: ffff88820ed12450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820ed12450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888210115150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888210115150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/547: #0: ffff88820efce450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820efce450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888210180350 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888210180350 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/1430: #0: ffff88820d707450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820d707450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882102e4a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882102e4a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/1504: #0: ffff8881001f6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881001f6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888210343350 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888210343350 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/2473: #0: ffff88820c3ad450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820c3ad450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820c895810 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820c895810 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/2538: #0: ffff88820be5d450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820be5d450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820c87d750 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820c87d750 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/3000: #0: ffff888100223450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888100223450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820c909a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820c909a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/3733: #0: ffff88820af06450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820af06450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820caa8390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820caa8390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/5083: #0: ffff888208dbc450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888208dbc450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888209079550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888209079550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/5415: #0: ffff888209fd1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888209fd1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820907c150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820907c150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/5441: #0: ffff888209fd1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888209fd1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820907c150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820907c150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/5580: #0: ffff888209696450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888209696450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888209121490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888209121490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/5608: #0: ffff888208f6b450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888208f6b450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888209013950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888209013950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/5845: #0: ffff888207ca7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888207ca7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882091822d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882091822d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/6481: #0: ffff888206cb7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888206cb7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882092ac310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882092ac310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/7491: #0: ffff8882062e3450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882062e3450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888209346910 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888209346910 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/8252: #0: ffff8882061d7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882061d7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882058d89d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882058d89d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/8365: #0: ffff88820455c450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820455c450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882058f2950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882058f2950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/8706: #0: ffff888203d55450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888203d55450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820587c550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820587c550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/8715: #0: ffff88800fd98450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88800fd98450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882059d8990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882059d8990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/8758: #0: ffff888203e34450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888203e34450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820591d310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820591d310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/9507: #0: ffff8882035b3450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882035b3450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888205b471d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888205b471d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/10584: #0: ffff888008c4d450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888008c4d450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888205be98d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888205be98d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/10619: #0: ffff888008c1a450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888008c1a450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888205bbf550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888205bbf550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/10649: #0: ffff888202bb6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888202bb6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888202008810 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888202008810 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/10834: #0: ffff888201f18450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888201f18450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820202e3d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820202e3d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/10848: #0: ffff888201fca450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888201fca450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888202070450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888202070450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/11696: #0: ffff888200e06450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888200e06450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882021ae310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882021ae310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/12441: #0: ffff8882005d1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882005d1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888202152890 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888202152890 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/12448: #0: ffff8882006d0450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882006d0450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820220c550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820220c550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/12972: #0: ffff8881fff56450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fff56450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882023047d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882023047d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/13331: #0: ffff888200e2d450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888200e2d450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882023c1490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882023c1490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/14082: #0: ffff8881fe5e9450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fe5e9450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fe8584d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fe8584d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/14636: #0: ffff8881fdd4f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fdd4f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fe9063d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fe9063d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/15325: #0: ffff8881fcc8e450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fcc8e450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fe9c89d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fe9c89d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/15931: #0: ffff8881fc4aa450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fc4aa450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fea9d9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fea9d9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/17831: #0: ffff8881fa6d1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fa6d1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fb0b3990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fb0b3990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/19841: #0: ffff8881f8ed6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f8ed6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fb287390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fb287390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/21360: #0: ffff8881f5dc2450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f5dc2450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f70ce450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f70ce450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/21759: #0: ffff8881f556e450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f556e450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f720c490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f720c490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/22191: #0: ffff8881f4ce0450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f4ce0450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f7152850 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f7152850 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/22527: #0: ffff8881f4f4b450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f4f4b450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f730e150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f730e150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/23228: #0: ffff8881f4739450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f4739450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f7308b10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f7308b10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/23520: #0: ffff8881f4080450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f4080450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f385e990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f385e990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/24183: #0: ffff8881270e7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881270e7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f3911a10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f3911a10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/25345: #0: ffff8881f1d2e450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f1d2e450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f39cc3d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f39cc3d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/27168: #0: ffff88812771f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88812771f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f00252d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f00252d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 524 Comm: khungtaskd Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xb3/0xec lib/dump_stack.c:118 nmi_cpu_backtrace.cold.8+0x3e/0x58 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0xd5/0xec lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline] watchdog+0x58e/0x680 kernel/hung_task.c:295 kthread+0x148/0x170 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 27278 Comm: syz-executor.0 Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:io_serial_in+0xf/0x20 drivers/tty/serial/8250/8250_port.c:446 Code: 00 00 d3 e6 48 63 f6 48 03 77 48 8b 06 c3 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 0f b6 8f f1 00 00 00 8b 57 40 d3 e6 01 f2 ec <0f> b6 c0 c3 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 0f b6 8f f1 00 RSP: 0018:ffffc9000ed3bb38 EFLAGS: 00000006 RAX: 0000000000000005 RBX: ffffffff8680ebc0 RCX: 0000000000000000 RDX: 00000000000003f9 RSI: 0000000000000001 RDI: ffffffff8680ebc0 RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000000 R10: ffff8881eff58d50 R11: b184a0120d96a89b R12: 0000000000000001 R13: ffffffff85d01040 R14: 0000000000000041 R15: ffffffff84433440 FS: 00007fe7378a5700(0000) GS:ffff88812c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000840 CR3: 00000001efe5b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_port_in include/linux/serial_core.h:262 [inline] serial8250_console_write+0xd8/0x340 drivers/tty/serial/8250/8250_port.c:3250 call_console_drivers kernel/printk/printk.c:1816 [inline] console_unlock+0x516/0x650 kernel/printk/printk.c:2493 vprintk_emit+0x121/0x370 kernel/printk/printk.c:2021 printk+0x53/0x6a kernel/printk/printk.c:2070 connmark_tg_check.cold.8+0x10/0x15 net/netfilter/xt_connmark.c:108 xt_check_target+0x7f/0x190 net/netfilter/x_tables.c:1019 check_target net/ipv4/netfilter/arp_tables.c:400 [inline] find_check_entry net/ipv4/netfilter/arp_tables.c:424 [inline] translate_table+0x424/0x680 net/ipv4/netfilter/arp_tables.c:577 do_replace net/ipv4/netfilter/arp_tables.c:982 [inline] do_arpt_set_ctl+0x11f/0x1c0 net/ipv4/netfilter/arp_tables.c:1462 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x39/0x60 net/netfilter/nf_sockopt.c:115 __sys_setsockopt+0xcb/0x190 net/socket.c:2127 __do_sys_setsockopt net/socket.c:2143 [inline] __se_sys_setsockopt net/socket.c:2140 [inline] __x64_sys_setsockopt+0x1b/0x20 net/socket.c:2140 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe7378a4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000002da80 RCX: 000000000045d5b9 RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000006 RBP: 000000000118cf90 R08: 0000000000000420 R09: 0000000000000000 R10: 0000000020000840 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffea4928fbf R14: 00007fe7378a59c0 R15: 000000000118cf4c