loop2: rw=0, want=4919069900, limit=272 attempt to access beyond end of device attempt to access beyond end of device loop2: rw=0, want=2761009532, limit=272 loop0: rw=0, want=2761009532, limit=272 INFO: task syz-executor160:8141 blocked for more than 140 seconds. Not tainted 4.19.164-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor160 D29920 8141 8114 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] vfs_setxattr+0xc7/0x270 fs/xattr.c:254 setxattr+0x23d/0x330 fs/xattr.c:520 __do_sys_fsetxattr fs/xattr.c:575 [inline] __se_sys_fsetxattr+0x14d/0x1b0 fs/xattr.c:564 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44aed9 Code: dd c9 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 ab c9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5ba13edd98 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffda RBX: 00000000006ddc38 RCX: 000000000044aed9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00000000006ddc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc3c R13: 000000807fffffff R14: 0000000000440001 R15: 0001000000000400 INFO: task syz-executor160:8142 blocked for more than 140 seconds. Not tainted 4.19.164-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor160 D30104 8142 8112 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] vfs_setxattr+0xc7/0x270 fs/xattr.c:254 setxattr+0x23d/0x330 fs/xattr.c:520 __do_sys_fsetxattr fs/xattr.c:575 [inline] __se_sys_fsetxattr+0x14d/0x1b0 fs/xattr.c:564 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44aed9 Code: dd c9 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 ab c9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5ba13edd98 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffda RBX: 00000000006ddc38 RCX: 000000000044aed9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00000000006ddc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc3c R13: 000000807fffffff R14: 0000000000440001 R15: 0001000000000400 INFO: task syz-executor160:8145 blocked for more than 140 seconds. Not tainted 4.19.164-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor160 D29656 8145 8111 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] vfs_setxattr+0xc7/0x270 fs/xattr.c:254 setxattr+0x23d/0x330 fs/xattr.c:520 __do_sys_fsetxattr fs/xattr.c:575 [inline] __se_sys_fsetxattr+0x14d/0x1b0 fs/xattr.c:564 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44aed9 Code: dd c9 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 ab c9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5ba13edd98 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffda RBX: 00000000006ddc38 RCX: 000000000044aed9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00000000006ddc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc3c R13: 000000807fffffff R14: 0000000000440001 R15: 0001000000000400 INFO: task syz-executor160:8149 blocked for more than 140 seconds. Not tainted 4.19.164-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor160 D30104 8149 8113 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] vfs_setxattr+0xc7/0x270 fs/xattr.c:254 setxattr+0x23d/0x330 fs/xattr.c:520 __do_sys_fsetxattr fs/xattr.c:575 [inline] __se_sys_fsetxattr+0x14d/0x1b0 fs/xattr.c:564 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44aed9 Code: dd c9 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 ab c9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5ba13edd98 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffda RBX: 00000000006ddc38 RCX: 000000000044aed9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00000000006ddc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc3c R13: 000000807fffffff R14: 0000000000440001 R15: 0001000000000400 INFO: task syz-executor160:8150 blocked for more than 140 seconds. Not tainted 4.19.164-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor160 D30104 8150 8115 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] vfs_setxattr+0xc7/0x270 fs/xattr.c:254 setxattr+0x23d/0x330 fs/xattr.c:520 __do_sys_fsetxattr fs/xattr.c:575 [inline] __se_sys_fsetxattr+0x14d/0x1b0 fs/xattr.c:564 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44aed9 Code: dd c9 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 ab c9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5ba13edd98 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffda RBX: 00000000006ddc38 RCX: 000000000044aed9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00000000006ddc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc3c R13: 000000807fffffff R14: 0000000000440001 R15: 0001000000000400 INFO: task syz-executor160:8151 blocked for more than 140 seconds. Not tainted 4.19.164-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor160 D30104 8151 8116 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] vfs_setxattr+0xc7/0x270 fs/xattr.c:254 setxattr+0x23d/0x330 fs/xattr.c:520 __do_sys_fsetxattr fs/xattr.c:575 [inline] __se_sys_fsetxattr+0x14d/0x1b0 fs/xattr.c:564 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44aed9 Code: dd c9 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 ab c9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5ba13edd98 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffda RBX: 00000000006ddc38 RCX: 000000000044aed9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00000000006ddc30 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc3c R13: 000000807fffffff R14: 0000000000440001 R15: 0001000000000400 Showing all locks held in the system: 1 lock held by khungtaskd/1559: #0: 000000001db7e07b (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440 1 lock held by kswapd0/1961: 1 lock held by in:imklog/7794: #0: 0000000003b363bb (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by syz-executor160/8119: 2 locks held by syz-executor160/8141: #0: 0000000082258f4f (sb_writers#11){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 0000000082258f4f (sb_writers#11){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 000000000c33c953 (&type->i_mutex_dir_key#8){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 000000000c33c953 (&type->i_mutex_dir_key#8){+.+.}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:254 3 locks held by syz-executor160/8122: 2 locks held by syz-executor160/8142: #0: 00000000a81f65b3 (sb_writers#11){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000a81f65b3 (sb_writers#11){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 0000000033ce351a (&type->i_mutex_dir_key#8){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 0000000033ce351a (&type->i_mutex_dir_key#8){+.+.}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:254 3 locks held by syz-executor160/8125: 2 locks held by syz-executor160/8145: #0: 00000000963c20c9 (sb_writers#11){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000963c20c9 (sb_writers#11){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 0000000007add88b (&type->i_mutex_dir_key#8){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 0000000007add88b (&type->i_mutex_dir_key#8){+.+.}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:254 4 locks held by syz-executor160/8134: 2 locks held by syz-executor160/8149: #0: 000000002342ac1b (sb_writers#11){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 000000002342ac1b (sb_writers#11){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 000000000f8c56c3 (&type->i_mutex_dir_key#8){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 000000000f8c56c3 (&type->i_mutex_dir_key#8){+.+.}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:254 3 locks held by syz-executor160/8136: 2 locks held by syz-executor160/8150: #0: 00000000e7f38593 (sb_writers#11){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000e7f38593 (sb_writers#11){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 00000000925418c5 (&type->i_mutex_dir_key#8){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 00000000925418c5 (&type->i_mutex_dir_key#8){+.+.}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:254 4 locks held by syz-executor160/8138: 2 locks held by syz-executor160/8151: #0: 00000000a8cbedf8 (sb_writers#11){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 00000000a8cbedf8 (sb_writers#11){.+.+}, at: mnt_want_write_file+0x63/0x1d0 fs/namespace.c:418 #1: 0000000071bf2fab (&type->i_mutex_dir_key#8){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 0000000071bf2fab (&type->i_mutex_dir_key#8){+.+.}, at: vfs_setxattr+0xc7/0x270 fs/xattr.c:254 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1559 Comm: khungtaskd Not tainted 4.19.164-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+0x1fc/0x2fe lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 8122 Comm: syz-executor160 Not tainted 4.19.164-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:queued_spin_lock include/asm-generic/qspinlock.h:86 [inline] RIP: 0010:do_raw_spin_lock+0xd7/0x220 kernel/locking/spinlock_debug.c:113 Code: 55 08 65 8b 05 ea 1d b4 7e 39 c2 0f 84 84 00 00 00 be 04 00 00 00 48 89 ef e8 a5 82 4d 00 31 c0 ba 01 00 00 00 f0 0f b1 55 00 <85> c0 75 7b 65 8b 1d be 1d b4 7e 48 b8 00 00 00 00 00 fc ff df 4c RSP: 0018:ffff8880b034f6c8 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffffe8ffffc02560 RCX: ffffffff814d635b RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88813be6b200 RBP: ffff88813be6b200 R08: 0000000000000001 R09: ffffed10277cd640 R10: ffff88813be6b203 R11: 0000000000000000 R12: ffff88813be6b208 R13: ffff88813be6b210 R14: ffff88813be45200 R15: 0000000000000286 FS: 00007f5ba140f700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f21ec035000 CR3: 00000000b4f02000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: spin_lock include/linux/spinlock.h:329 [inline] __cache_free_alien mm/slab.c:808 [inline] cache_free_alien mm/slab.c:837 [inline] ___cache_free+0x1d1/0x3a0 mm/slab.c:3525 qlink_free mm/kasan/quarantine.c:147 [inline] qlist_free_all+0x79/0x140 mm/kasan/quarantine.c:166 quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x110/0x370 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] alloc_buffer_head+0x20/0x130 fs/buffer.c:3372 alloc_page_buffers+0x169/0x5c0 fs/buffer.c:830 create_empty_buffers+0x2c/0x760 fs/buffer.c:1528 create_page_buffers+0x212/0x350 fs/buffer.c:1645 block_read_full_page+0xcf/0xd10 fs/buffer.c:2239 do_read_cache_page+0x533/0x1170 mm/filemap.c:2828 read_mapping_page include/linux/pagemap.h:402 [inline] dir_get_page fs/minix/dir.c:70 [inline] minix_empty_dir+0x16f/0x990 fs/minix/dir.c:372 minix_rmdir+0x3d/0xd0 fs/minix/namei.c:174 vfs_rmdir.part.0+0x10f/0x3d0 fs/namei.c:3882 vfs_rmdir fs/namei.c:3868 [inline] do_rmdir+0x3fd/0x490 fs/namei.c:3943 __do_sys_unlinkat fs/namei.c:4105 [inline] __se_sys_unlinkat fs/namei.c:4099 [inline] __x64_sys_unlinkat+0xdf/0x120 fs/namei.c:4099 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44aed9 Code: dd c9 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 ab c9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5ba140ed98 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 00000000006ddc28 RCX: 000000000044aed9 RDX: 0000000000000200 RSI: 0000000020000140 RDI: 0000000000000005 RBP: 00000000006ddc20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc2c R13: 000000807fffffff R14: 0000000000440001 R15: 0001000000000400