loop5: rw=0, want=5150853156, limit=272 attempt to access beyond end of device attempt to access beyond end of device loop5: rw=0, want=1802385994, limit=272 loop2: rw=0, want=1802385994, limit=272 INFO: task syz-executor106:8134 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor106 D28712 8134 8107 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 d_wait_lookup fs/dcache.c:2430 [inline] d_alloc_parallel+0x1292/0x19e0 fs/dcache.c:2512 __lookup_slow+0x18d/0x4a0 fs/namei.c:1655 lookup_slow fs/namei.c:1689 [inline] walk_component+0x7ac/0xda0 fs/namei.c:1811 lookup_last fs/namei.c:2274 [inline] path_lookupat+0x1ff/0x8d0 fs/namei.c:2319 filename_lookup+0x1ac/0x5a0 fs/namei.c:2349 user_path include/linux/namei.h:62 [inline] do_mount+0x147/0x2f50 fs/namespace.c:2762 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fcb80b98c29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcb80b242f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcb80c1d4b0 RCX: 00007fcb80b98c29 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000000 RBP: 0030656c69662f2e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 00007fcb80bea0c8 R13: 00000000200011c0 R14: 000000807fffffff R15: 00007fcb80c1d4b8 INFO: task syz-executor106:8138 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor106 D28712 8138 8105 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 d_wait_lookup fs/dcache.c:2430 [inline] d_alloc_parallel+0x1292/0x19e0 fs/dcache.c:2512 __lookup_slow+0x18d/0x4a0 fs/namei.c:1655 lookup_slow fs/namei.c:1689 [inline] walk_component+0x7ac/0xda0 fs/namei.c:1811 lookup_last fs/namei.c:2274 [inline] path_lookupat+0x1ff/0x8d0 fs/namei.c:2319 filename_lookup+0x1ac/0x5a0 fs/namei.c:2349 user_path include/linux/namei.h:62 [inline] do_mount+0x147/0x2f50 fs/namespace.c:2762 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fcb80b98c29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcb80b242f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcb80c1d4b0 RCX: 00007fcb80b98c29 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000000 RBP: 0030656c69662f2e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 00007fcb80bea0c8 R13: 00000000200011c0 R14: 000000807fffffff R15: 00007fcb80c1d4b8 INFO: task syz-executor106:8136 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor106 D28696 8136 8103 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 d_wait_lookup fs/dcache.c:2430 [inline] d_alloc_parallel+0x1292/0x19e0 fs/dcache.c:2512 __lookup_slow+0x18d/0x4a0 fs/namei.c:1655 lookup_slow fs/namei.c:1689 [inline] walk_component+0x7ac/0xda0 fs/namei.c:1811 lookup_last fs/namei.c:2274 [inline] path_lookupat+0x1ff/0x8d0 fs/namei.c:2319 filename_lookup+0x1ac/0x5a0 fs/namei.c:2349 user_path include/linux/namei.h:62 [inline] do_mount+0x147/0x2f50 fs/namespace.c:2762 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fcb80b98c29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcb80b242f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcb80c1d4b0 RCX: 00007fcb80b98c29 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000000 RBP: 0030656c69662f2e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 00007fcb80bea0c8 R13: 00000000200011c0 R14: 000000807fffffff R15: 00007fcb80c1d4b8 INFO: task syz-executor106:8140 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor106 D27664 8140 8102 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 d_wait_lookup fs/dcache.c:2430 [inline] d_alloc_parallel+0x1292/0x19e0 fs/dcache.c:2512 __lookup_slow+0x18d/0x4a0 fs/namei.c:1655 lookup_slow fs/namei.c:1689 [inline] walk_component+0x7ac/0xda0 fs/namei.c:1811 lookup_last fs/namei.c:2274 [inline] path_lookupat+0x1ff/0x8d0 fs/namei.c:2319 filename_lookup+0x1ac/0x5a0 fs/namei.c:2349 user_path include/linux/namei.h:62 [inline] do_mount+0x147/0x2f50 fs/namespace.c:2762 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fcb80b98c29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcb80b242f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcb80c1d4b0 RCX: 00007fcb80b98c29 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000000 RBP: 0030656c69662f2e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 00007fcb80bea0c8 R13: 00000000200011c0 R14: 000000807fffffff R15: 00007fcb80c1d4b8 INFO: task syz-executor106:8142 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor106 D28712 8142 8106 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 d_wait_lookup fs/dcache.c:2430 [inline] d_alloc_parallel+0x1292/0x19e0 fs/dcache.c:2512 __lookup_slow+0x18d/0x4a0 fs/namei.c:1655 lookup_slow fs/namei.c:1689 [inline] walk_component+0x7ac/0xda0 fs/namei.c:1811 lookup_last fs/namei.c:2274 [inline] path_lookupat+0x1ff/0x8d0 fs/namei.c:2319 filename_lookup+0x1ac/0x5a0 fs/namei.c:2349 user_path include/linux/namei.h:62 [inline] do_mount+0x147/0x2f50 fs/namespace.c:2762 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fcb80b98c29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcb80b242f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcb80c1d4b0 RCX: 00007fcb80b98c29 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000000 RBP: 0030656c69662f2e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 00007fcb80bea0c8 R13: 00000000200011c0 R14: 000000807fffffff R15: 00007fcb80c1d4b8 INFO: task syz-executor106:8151 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor106 D28712 8151 8104 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 d_wait_lookup fs/dcache.c:2430 [inline] d_alloc_parallel+0x1292/0x19e0 fs/dcache.c:2512 __lookup_slow+0x18d/0x4a0 fs/namei.c:1655 lookup_slow fs/namei.c:1689 [inline] walk_component+0x7ac/0xda0 fs/namei.c:1811 lookup_last fs/namei.c:2274 [inline] path_lookupat+0x1ff/0x8d0 fs/namei.c:2319 filename_lookup+0x1ac/0x5a0 fs/namei.c:2349 user_path include/linux/namei.h:62 [inline] do_mount+0x147/0x2f50 fs/namespace.c:2762 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fcb80b98c29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcb80b242f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcb80c1d4b0 RCX: 00007fcb80b98c29 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000000 RBP: 0030656c69662f2e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 00007fcb80bea0c8 R13: 00000000200011c0 R14: 000000807fffffff R15: 00007fcb80c1d4b8 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 000000009c8c953a (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by kswapd0/1968: 1 lock held by kswapd1/1969: 1 lock held by in:imklog/7747: #0: 000000008723a080 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 1 lock held by syz-executor106/8111: 1 lock held by syz-executor106/8134: #0: 00000000467baf6d (&type->i_mutex_dir_key#7){.+.+}, at: inode_lock_shared include/linux/fs.h:758 [inline] #0: 00000000467baf6d (&type->i_mutex_dir_key#7){.+.+}, at: lookup_slow fs/namei.c:1688 [inline] #0: 00000000467baf6d (&type->i_mutex_dir_key#7){.+.+}, at: walk_component+0x798/0xda0 fs/namei.c:1811 2 locks held by syz-executor106/8119: 1 lock held by syz-executor106/8138: #0: 00000000367b3ef2 (&type->i_mutex_dir_key#7){.+.+}, at: inode_lock_shared include/linux/fs.h:758 [inline] #0: 00000000367b3ef2 (&type->i_mutex_dir_key#7){.+.+}, at: lookup_slow fs/namei.c:1688 [inline] #0: 00000000367b3ef2 (&type->i_mutex_dir_key#7){.+.+}, at: walk_component+0x798/0xda0 fs/namei.c:1811 2 locks held by syz-executor106/8112: 1 lock held by syz-executor106/8136: #0: 00000000493ba0f7 (&type->i_mutex_dir_key#7){.+.+}, at: inode_lock_shared include/linux/fs.h:758 [inline] #0: 00000000493ba0f7 (&type->i_mutex_dir_key#7){.+.+}, at: lookup_slow fs/namei.c:1688 [inline] #0: 00000000493ba0f7 (&type->i_mutex_dir_key#7){.+.+}, at: walk_component+0x798/0xda0 fs/namei.c:1811 1 lock held by syz-executor106/8120: 1 lock held by syz-executor106/8140: #0: 0000000050970ca5 (&type->i_mutex_dir_key#7){.+.+}, at: inode_lock_shared include/linux/fs.h:758 [inline] #0: 0000000050970ca5 (&type->i_mutex_dir_key#7){.+.+}, at: lookup_slow fs/namei.c:1688 [inline] #0: 0000000050970ca5 (&type->i_mutex_dir_key#7){.+.+}, at: walk_component+0x798/0xda0 fs/namei.c:1811 1 lock held by syz-executor106/8125: 1 lock held by syz-executor106/8142: #0: 00000000e8b3b783 (&type->i_mutex_dir_key#7){.+.+}, at: inode_lock_shared include/linux/fs.h:758 [inline] #0: 00000000e8b3b783 (&type->i_mutex_dir_key#7){.+.+}, at: lookup_slow fs/namei.c:1688 [inline] #0: 00000000e8b3b783 (&type->i_mutex_dir_key#7){.+.+}, at: walk_component+0x798/0xda0 fs/namei.c:1811 1 lock held by syz-executor106/8146: 1 lock held by syz-executor106/8151: #0: 00000000ce5fd961 (&type->i_mutex_dir_key#7){.+.+}, at: inode_lock_shared include/linux/fs.h:758 [inline] #0: 00000000ce5fd961 (&type->i_mutex_dir_key#7){.+.+}, at: lookup_slow fs/namei.c:1688 [inline] #0: 00000000ce5fd961 (&type->i_mutex_dir_key#7){.+.+}, at: walk_component+0x798/0xda0 fs/namei.c:1811 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 1968 Comm: kswapd0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:deref_stack_reg+0xe/0x1d0 arch/x86/kernel/unwind_orc.c:330 Code: ff ff ff 4c 89 ef e8 21 e6 6e 00 0f b6 44 24 04 eb a0 66 2e 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 56 41 55 <49> 89 d5 41 54 49 89 fc 55 48 89 f5 53 48 83 ec 68 48 c7 44 24 08 RSP: 0018:ffff8880b0d7f168 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: 1ffff110161afe39 RCX: ffff8880b0d7f660 RDX: ffff8880b0d7f2f8 RSI: ffff8880b0d7f688 RDI: ffff8880b0d7f2b0 RBP: 0000000000000001 R08: ffffffff8b97baf4 R09: ffffffff8b97bacc R10: ffff8880b0d7f30f R11: 0000000000074071 R12: ffff8880b0d7f2f8 R13: ffff8880b0d7f2e5 R14: ffff8880b0d7f2b0 R15: ffffffff8b97baf0 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd34d1d1000 CR3: 00000000a085a000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_next_frame+0x9fc/0x1400 arch/x86/kernel/unwind_orc.c:502 __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x126/0x1f0 mm/kasan/kasan.c:521 __cache_free mm/slab.c:3503 [inline] kmem_cache_free+0x7f/0x260 mm/slab.c:3765 free_buffer_head+0x4a/0xf0 fs/buffer.c:3387 try_to_free_buffers+0x38b/0x5d0 fs/buffer.c:3302 try_to_release_page+0x263/0x390 mm/filemap.c:3359 shrink_page_list+0x3abc/0x59d0 mm/vmscan.c:1413 shrink_inactive_list+0x4f4/0x1820 mm/vmscan.c:1950 shrink_list mm/vmscan.c:2254 [inline] shrink_node_memcg+0x5b9/0x1450 mm/vmscan.c:2522 shrink_node.isra.0+0x25d/0x1300 mm/vmscan.c:2745 kswapd_shrink_node mm/vmscan.c:3467 [inline] balance_pgdat mm/vmscan.c:3577 [inline] kswapd+0xb8d/0x1840 mm/vmscan.c:3801 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415