INFO: task syz.9.1138:12582 blocked for more than 143 seconds. Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.9.1138 state:D stack:25776 pid:12582 tgid:12554 ppid:12055 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline] __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 do_sync_mmap_readahead+0x499/0x970 filemap_fault+0x8d3/0x1950 mm/filemap.c:3344 __do_fault+0x135/0x460 mm/memory.c:4907 do_read_fault mm/memory.c:5322 [inline] do_fault mm/memory.c:5456 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x335a/0x68a0 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7fb50bb635be RSP: 002b:00007fb50c91fc08 EFLAGS: 00010246 RAX: 00007fb50c91fc30 RBX: 6666666666666667 RCX: 0000000000000040 RDX: 00000000000003ff RSI: 0000000020000140 RDI: 00007fb50c91fc30 RBP: 00007fb50c91fc30 R08: 00000000000003ff R09: 0000000000000000 R10: 0000000020000140 R11: 000000000000a382 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb50bd46080 R15: 00007fb50be6fa38 INFO: task syz.9.1138:12591 blocked for more than 144 seconds. Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.9.1138 state:D stack:26464 pid:12591 tgid:12554 ppid:12055 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline] __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 do_sync_mmap_readahead+0x499/0x970 filemap_fault+0x8d3/0x1950 mm/filemap.c:3344 __do_fault+0x135/0x460 mm/memory.c:4907 do_read_fault mm/memory.c:5322 [inline] do_fault mm/memory.c:5456 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x335a/0x68a0 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:do_strncpy_from_user lib/strncpy_from_user.c:41 [inline] RIP: 0010:strncpy_from_user+0xc8/0x270 lib/strncpy_from_user.c:130 Code: bf 07 00 00 00 4c 89 f6 e8 e5 35 9d fc 49 83 fe 07 0f 86 8b 00 00 00 4c 89 34 24 49 c7 c5 f8 ff ff ff 45 31 e4 48 8b 44 24 08 <4e> 8b 34 20 48 b8 ff fe fe fe fe fe fe fe 49 8d 2c 06 4c 89 f3 48 RSP: 0018:ffffc9000454fcb0 EFLAGS: 00050246 RAX: 0000000020000280 RBX: 0000000020000280 RCX: ffff8880312bbc00 RDX: ffffc9000f10c000 RSI: 0000000000000fe0 RDI: 0000000000000007 RBP: ffff888060330020 R08: ffffffff8502410b R09: 1ffffffff20329c6 R10: dffffc0000000000 R11: fffffbfff20329c7 R12: 0000000000000000 R13: fffffffffffffff8 R14: 0000000000000fe0 R15: ffff888060330020 getname_flags+0xf1/0x540 fs/namei.c:150 do_sys_openat2+0xd2/0x1d0 fs/open.c:1396 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1428 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb50bb7fed9 RSP: 002b:00007fb50c8ff058 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb50bd46160 RCX: 00007fb50bb7fed9 RDX: 0000000000000002 RSI: 0000000020000280 RDI: ffffffffffffff9c RBP: 00007fb50bbf3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fb50bd46160 R15: 00007fb50be6fa38 INFO: task syz.9.1138:12592 blocked for more than 145 seconds. Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.9.1138 state:D stack:26944 pid:12592 tgid:12554 ppid:12055 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline] __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 do_sync_mmap_readahead+0x499/0x970 filemap_fault+0x8d3/0x1950 mm/filemap.c:3344 __do_fault+0x135/0x460 mm/memory.c:4907 do_read_fault mm/memory.c:5322 [inline] do_fault mm/memory.c:5456 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x335a/0x68a0 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:do_strnlen_user lib/strnlen_user.c:37 [inline] RIP: 0010:strnlen_user+0x50/0x190 lib/strnlen_user.c:103 Code: e6 33 9d fc 4d 85 f6 0f 8e 2c 01 00 00 49 bd 00 f0 ff ff ff 7f 00 00 49 39 dd 4d 19 ed 49 09 dd 0f 01 cb 4c 89 e8 48 83 e0 f8 <48> 8b 28 44 89 eb 83 e3 07 8d 0c dd 00 00 00 00 48 c7 c0 ff ff ff RSP: 0018:ffffc900044efe80 EFLAGS: 00050202 RAX: 0000000020000880 RBX: 0000000020000880 RCX: ffff8880312b9e00 RDX: ffffc90010f0b000 RSI: 00000000000000fa RDI: 0000000000000001 RBP: 0000000000000000 R08: ffffffff8502430a R09: 1ffffffff20329c6 R10: dffffc0000000000 R11: fffffbfff20329c7 R12: 0000000000000000 R13: 0000000020000880 R14: 00000000000000fa R15: 0000000020000880 __do_sys_memfd_create mm/memfd.c:359 [inline] __se_sys_memfd_create+0x20a/0x840 mm/memfd.c:330 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb50bb7fed9 RSP: 002b:00007fb50c8de058 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 00007fb50bd46240 RCX: 00007fb50bb7fed9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000880 RBP: 00007fb50bbf3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fb50bd46240 R15: 00007fb50be6fa38 INFO: task syz.9.1138:12593 blocked for more than 145 seconds. Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.9.1138 state:D stack:26416 pid:12593 tgid:12554 ppid:12055 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline] __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 do_sync_mmap_readahead+0x499/0x970 filemap_fault+0x8d3/0x1950 mm/filemap.c:3344 __do_fault+0x135/0x460 mm/memory.c:4907 do_read_fault mm/memory.c:5322 [inline] do_fault mm/memory.c:5456 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x335a/0x68a0 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x30/0x70 arch/x86/lib/copy_user_64.S:57 Code: f9 40 73 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 <48> 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 RSP: 0018:ffffc900047c7c18 EFLAGS: 00050202 RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000028 RDX: 0000000000000001 RSI: 0000000020000000 RDI: ffffc900047c7ce0 RBP: 0000000000000000 R08: ffffc900047c7d07 R09: 1ffff920008f8fa0 R10: dffffc0000000000 R11: fffff520008f8fa1 R12: 0000000020000000 R13: dffffc0000000000 R14: ffffc900047c7ce0 R15: 0000000000000028 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline] _inline_copy_from_user include/linux/uaccess.h:178 [inline] _copy_from_user+0x7f/0xc0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:212 [inline] get_user_ifreq+0xc3/0x200 net/socket.c:3341 sock_do_ioctl+0x1a5/0x460 net/socket.c:1221 sock_ioctl+0x626/0x8e0 net/socket.c:1328 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb50bb7fed9 RSP: 002b:00007fb50c8bd058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb50bd46320 RCX: 00007fb50bb7fed9 RDX: 0000000020000000 RSI: 0000000000008933 RDI: 0000000000000008 RBP: 00007fb50bbf3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb50bd46320 R15: 00007fb50be6fa38 INFO: task syz.9.1138:12596 blocked for more than 146 seconds. Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.9.1138 state:D stack:26016 pid:12596 tgid:12554 ppid:12055 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline] __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 do_sync_mmap_readahead+0x499/0x970 filemap_fault+0x8d3/0x1950 mm/filemap.c:3344 __do_fault+0x135/0x460 mm/memory.c:4907 do_read_fault mm/memory.c:5322 [inline] do_fault mm/memory.c:5456 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x335a/0x68a0 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x30/0x70 arch/x86/lib/copy_user_64.S:57 Code: f9 40 73 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 <48> 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 RSP: 0018:ffffc90003fcfaf0 EFLAGS: 00050206 RAX: 0000000000000001 RBX: 0000000020000040 RCX: 0000000000000038 RDX: 0000000000000001 RSI: 0000000020000040 RDI: ffffc90003fcfb80 RBP: ffffc90003fcfc30 R08: ffffc90003fcfbb7 R09: 1ffff920007f9f76 R10: dffffc0000000000 R11: fffff520007f9f77 R12: 0000000020000040 R13: dffffc0000000000 R14: ffffc90003fcfb80 R15: 0000000000000038 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline] _inline_copy_from_user include/linux/uaccess.h:178 [inline] _copy_from_user+0x7f/0xc0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:212 [inline] copy_msghdr_from_user+0xae/0x680 net/socket.c:2513 sendmsg_copy_msghdr net/socket.c:2614 [inline] ___sys_sendmsg net/socket.c:2633 [inline] __sys_sendmsg+0x209/0x350 net/socket.c:2669 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb50bb7fed9 RSP: 002b:00007fb508df0058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fb50bd46400 RCX: 00007fb50bb7fed9 RDX: 000000000404c840 RSI: 0000000020000040 RDI: 0000000000000007 RBP: 00007fb50bbf3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fb50bd46400 R15: 00007fb50be6fa38 INFO: task syz.9.1138:12600 blocked for more than 147 seconds. Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.9.1138 state:D stack:26480 pid:12600 tgid:12554 ppid:12055 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline] __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 do_sync_mmap_readahead+0x499/0x970 filemap_fault+0x8d3/0x1950 mm/filemap.c:3344 __do_fault+0x135/0x460 mm/memory.c:4907 do_read_fault mm/memory.c:5322 [inline] do_fault mm/memory.c:5456 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x335a/0x68a0 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x30/0x70 arch/x86/lib/copy_user_64.S:57 Code: f9 40 73 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 <48> 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 RSP: 0018:ffffc90003c4fc50 EFLAGS: 00050216 RAX: 0000000000000001 RBX: 00000000200000c0 RCX: 0000000000000020 RDX: 0000000000000001 RSI: 00000000200000c0 RDI: ffffc90003c4fcd0 RBP: ffffc90003c4fd70 R08: ffffc90003c4fcef R09: 1ffff92000789f9d R10: dffffc0000000000 R11: fffff52000789f9e R12: 00000000200000c0 R13: 1ffff92000789f94 R14: ffffc90003c4fcd0 R15: 0000000000000020 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline] _inline_copy_from_user include/linux/uaccess.h:178 [inline] _copy_from_user+0x7f/0xc0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:212 [inline] copy_from_sockptr_offset include/linux/sockptr.h:48 [inline] copy_from_sockptr include/linux/sockptr.h:61 [inline] xsk_setsockopt+0x34e/0x950 net/xdp/xsk.c:1381 do_sock_setsockopt+0x3af/0x720 net/socket.c:2313 __sys_setsockopt net/socket.c:2338 [inline] __do_sys_setsockopt net/socket.c:2344 [inline] __se_sys_setsockopt net/socket.c:2341 [inline] __x64_sys_setsockopt+0x1ee/0x280 net/socket.c:2341 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb50bb7fed9 RSP: 002b:00007fb5089cd058 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fb50bd464e0 RCX: 00007fb50bb7fed9 RDX: 0000000000000004 RSI: 000000000000011b RDI: 0000000000000004 RBP: 00007fb50bbf3cc8 R08: 0000000000000020 R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb50bd464e0 R15: 00007fb50be6fa38 INFO: task syz.9.1138:12603 blocked for more than 147 seconds. Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.9.1138 state:D stack:26592 pid:12603 tgid:12554 ppid:12055 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline] __down_read_common kernel/locking/rwsem.c:1248 [inline] __down_read kernel/locking/rwsem.c:1261 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1526 filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 do_sync_mmap_readahead+0x499/0x970 filemap_fault+0x8d3/0x1950 mm/filemap.c:3344 __do_fault+0x135/0x460 mm/memory.c:4907 do_read_fault mm/memory.c:5322 [inline] do_fault mm/memory.c:5456 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x335a/0x68a0 mm/memory.c:5801 __handle_mm_fault mm/memory.c:5944 [inline] handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x4a/0x70 arch/x86/lib/copy_user_64.S:71 Code: 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb c9 a4 c3 cc cc cc cc 48 89 c8 48 c1 e9 03 83 e0 07 f3 48 a5 89 c1 RSP: 0018:ffffc9000431fd30 EFLAGS: 00050202 RAX: 0000000000000001 RBX: 00000000200002c0 RCX: 0000000000000050 RDX: 0000000000000001 RSI: 00000000200002c0 RDI: ffffc9000431fda0 RBP: ffffc9000431fed8 R08: ffffc9000431fdef R09: 1ffff92000863fbd R10: dffffc0000000000 R11: fffff52000863fbe R12: 00000000200002c0 R13: ffffc9000431fda0 R14: ffffc9000431fda0 R15: 0000000000000050 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline] _inline_copy_from_user include/linux/uaccess.h:178 [inline] _copy_from_user+0x7f/0xc0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:212 [inline] copy_from_bpfptr_offset include/linux/bpfptr.h:53 [inline] copy_from_bpfptr include/linux/bpfptr.h:59 [inline] __sys_bpf+0x1a4/0x810 kernel/bpf/syscall.c:5763 __do_sys_bpf kernel/bpf/syscall.c:5897 [inline] __se_sys_bpf kernel/bpf/syscall.c:5895 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5895 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb50bb7fed9 RSP: 002b:00007fb5085aa058 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fb50bd465c0 RCX: 00007fb50bb7fed9 RDX: 0000000000000050 RSI: 00000000200002c0 RDI: 0000000000000000 RBP: 00007fb50bbf3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fb50bd465c0 R15: 00007fb50be6fa38 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e937aa0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e937aa0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e937aa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744 3 locks held by kworker/u8:6/2206: #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc90004ea7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90004ea7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffffffff8fcafc88 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:281 1 lock held by dhcpcd/5498: #0: ffffffff8fcafc88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fcafc88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:326 [inline] #0: ffffffff8fcafc88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xbb0/0x20e0 net/core/rtnetlink.c:4008 2 locks held by getty/5583: #0: ffff8880310250a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211 3 locks held by syz.7.832/10792: 2 locks held by syz.4.1069/12200: #0: ffffffff8fcafc88 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff8fcafc88 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517 #1: ffffffff8e93cfb8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline] #1: ffffffff8e93cfb8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976 1 lock held by syz.9.1138/12582: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.9.1138/12591: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.9.1138/12592: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.9.1138/12593: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.9.1138/12596: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.9.1138/12600: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.9.1138/12603: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 6 locks held by kworker/u8:10/12996: #0: ffff8880b863e8d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:606 #1: ffffc90003157d00 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90003157d00 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffff8880b862a718 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x112/0x240 kernel/time/timer.c:1050 #3: ffffffff9a5fd578 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x17f/0x580 lib/debugobjects.c:818 #4: ffffffff9a59ed78 (&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_check_no_obj_freed lib/debugobjects.c:1088 [inline] #4: ffffffff9a59ed78 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_check_no_obj_freed+0x234/0x580 lib/debugobjects.c:1129 #5: ffff8880b8642c40 (&c->lock){-.-.}-{3:3}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline] #5: ffff8880b8642c40 (&c->lock){-.-.}-{3:3}, at: put_cpu_partial+0x70/0x250 mm/slub.c:3189 3 locks held by kworker/u8:11/12997: 1 lock held by syz.7.1204/13094: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.8.1460/14718: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.7.1518/15194: #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148c5abc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.6.1536/15326: #0: ffffffff8fcafc88 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff8fcafc88 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517 3 locks held by syz.0.1539/15328: #0: ffff888043a08d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline] #0: ffff888043a08d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2698 #1: ffff888043a08078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x5c8/0x11c0 net/bluetooth/hci_sync.c:5200 #2: ffffffff8e93cfb8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline] #2: ffffffff8e93cfb8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976 3 locks held by syz.5.1540/15340: #0: ffff888070474d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline] #0: ffff888070474d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2698 #1: ffff888070474078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x5c8/0x11c0 net/bluetooth/hci_sync.c:5200 #2: ffffffff8fe105e8 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:2047 [inline] #2: ffffffff8fe105e8 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_hash_flush+0xa6/0x240 net/bluetooth/hci_conn.c:2698 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline] watchdog+0xff6/0x1040 kernel/hung_task.c:397 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 12997 Comm: kworker/u8:11 Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: bat_events batadv_nc_worker RIP: 0010:__rcu_read_unlock+0x4f/0x110 kernel/rcu/tree_plugin.h:436 Code: 04 00 00 4c 89 eb 48 c1 eb 03 42 0f b6 04 23 84 c0 75 6b 41 8b 6d 00 ff cd 42 0f b6 04 23 84 c0 75 76 41 89 6d 00 85 ed 75 21 <4d> 8d be 48 04 00 00 4c 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f RSP: 0018:ffffc900032b7ab0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 1ffff11005fdc088 RCX: ffffc900032b7a03 RDX: 0000000000000002 RSI: ffffffff8c0aa880 RDI: ffffffff8c5f6520 RBP: 0000000000000000 R08: ffffffff90194e37 R09: 1ffffffff20329c6 R10: dffffc0000000000 R11: fffffbfff20329c7 R12: dffffc0000000000 R13: ffff88802fee0444 R14: ffff88802fee0000 R15: ffffffff8b9c2440 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc590e4b440 CR3: 000000000e736000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 00000000872c9164 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: rcu_read_unlock include/linux/rcupdate.h:882 [inline] batadv_nc_process_nc_paths+0x2f5/0x3a0 net/batman-adv/network-coding.c:699 batadv_nc_worker+0x42a/0x610 net/batman-adv/network-coding.c:728 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244