INFO: task syz.5.684:9810 blocked for more than 143 seconds. Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.684 state:D stack:22784 pid:9810 tgid:9810 ppid:8929 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: 0033:0x7fa3678453ed RSP: 002b:00007fa367c6fb60 EFLAGS: 00010206 RAX: 000000002000a000 RBX: 000000001d000004 RCX: 0000000000000000 RDX: 863c3b86e8215548 RSI: 0000000000000000 RDI: 000055557aa733c8 RBP: 00007fa367c6fc78 R08: 0000000000000000 R09: 000000000000001d R10: 0000000000000000 R11: 0000000000000000 R12: 000000000003ef97 R13: 00007fa367c6fca0 R14: 0000000000000032 R15: fffffffffffffffe INFO: task syz.5.684:9816 blocked for more than 143 seconds. Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.684 state:D stack:24896 pid:9816 tgid:9810 ppid:8929 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 75 49 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:ffffc9000bbb7cb0 EFLAGS: 00050246 RAX: 00000000200018c0 RBX: 00000000200018c0 RCX: ffff888031509e00 RDX: ffffc9000d9f5000 RSI: 0000000000000fe0 RDI: 0000000000000007 RBP: ffff888051326620 R08: ffffffff85022d8b R09: 1ffffffff20328be R10: dffffc0000000000 R11: fffffbfff20328bf R12: 0000000000000000 R13: fffffffffffffff8 R14: 0000000000000fe0 R15: ffff888051326620 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: 0033:0x7fa36797ff19 RSP: 002b:00007fa3686b3058 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fa367b46080 RCX: 00007fa36797ff19 RDX: 00000000000e0c81 RSI: 00000000200018c0 RDI: ffffffffffffff9c RBP: 00007fa3679f3986 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa367b46080 R15: 00007fa367c6fa38 INFO: task syz.5.684:9819 blocked for more than 144 seconds. Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.684 state:D stack:25680 pid:9819 tgid:9810 ppid:8929 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:ffffc900058f7930 EFLAGS: 00050206 RAX: 0000000000000001 RBX: 0000000020007000 RCX: 0000000000000038 RDX: 0000000000000001 RSI: 0000000020007000 RDI: ffffc900058f79c0 RBP: ffffc900058f7a70 R08: ffffc900058f79f7 R09: 1ffff92000b1ef3e R10: dffffc0000000000 R11: fffff52000b1ef3f R12: 0000000020007000 R13: dffffc0000000000 R14: ffffc900058f79c0 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 recvmsg_copy_msghdr net/socket.c:2769 [inline] ___sys_recvmsg net/socket.c:2841 [inline] do_recvmmsg+0x3bd/0xab0 net/socket.c:2940 __sys_recvmmsg net/socket.c:3014 [inline] __do_sys_recvmmsg net/socket.c:3037 [inline] __se_sys_recvmmsg net/socket.c:3030 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3030 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: 0033:0x7fa36797ff19 RSP: 002b:00007fa3657f6058 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007fa367b46160 RCX: 00007fa36797ff19 RDX: 0000000000000008 RSI: 0000000020007000 RDI: 0000000000000007 RBP: 00007fa3679f3986 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000020 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa367b46160 R15: 00007fa367c6fa38 INFO: task syz.5.684:9820 blocked for more than 145 seconds. Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.684 state:D stack:26736 pid:9820 tgid:9810 ppid:8929 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:ffffc9000bca7d48 EFLAGS: 00050212 RAX: 0000000000000001 RBX: 0000000020001ff0 RCX: 0000000000000010 RDX: 0000000000000001 RSI: 0000000020001ff0 RDI: ffffc9000bca7de0 RBP: 0000000000000010 R08: ffffc9000bca7def R09: 1ffff92001794fbd R10: dffffc0000000000 R11: fffff52001794fbe R12: 0000000020001ff0 R13: ffff888058429181 R14: ffffc9000bca7de0 R15: 0000000000000010 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] move_addr_to_kernel+0x82/0x150 net/socket.c:252 __sys_connect+0xb6/0x2d0 net/socket.c:2070 __do_sys_connect net/socket.c:2080 [inline] __se_sys_connect net/socket.c:2077 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2077 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: 0033:0x7fa36797ff19 RSP: 002b:00007fa3653d3058 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007fa367b46240 RCX: 00007fa36797ff19 RDX: 0000000000000010 RSI: 0000000020001ff0 RDI: 0000000000000007 RBP: 00007fa3679f3986 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa367b46240 R15: 00007fa367c6fa38 INFO: task syz.0.704:9945 blocked for more than 145 seconds. Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.704 state:D stack:23840 pid:9945 tgid:9945 ppid:8113 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_shared_fault mm/memory.c:5386 [inline] do_fault mm/memory.c:5460 [inline] do_pte_missing mm/memory.c:3979 [inline] handle_pte_fault+0x1140/0x68a0 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: 0033:0x7f5816347c98 RSP: 002b:00007f581666fb98 EFLAGS: 00010202 RAX: 0000000020002000 RBX: 0000000000000004 RCX: 00657375662f7665 RDX: 000000000000000a RSI: 7375662f7665642f RDI: 0000000020002000 RBP: 00007f5816547ba0 R08: 00007f5816200000 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000009 R12: 00000000000402dc R13: 00007f5816545fa0 R14: 0000000000000032 R15: fffffffffffffffe 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 2 locks held by kworker/u8:4/63: 2 locks held by kworker/u8:5/1092: #0: ffff8880b873e8d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 #1: ffff8880b8728948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 kernel/sched/psi.c:987 3 locks held by kworker/u8:6/1107: #0: ffff88814d010148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88814d010148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc900041b7d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc900041b7d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4755 2 locks held by dhcpcd/5500: #0: ffff88805e3266c8 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: __netlink_dump_start+0x119/0x790 net/netlink/af_netlink.c:2396 #1: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #1: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x99/0x200 net/core/rtnetlink.c:6785 2 locks held by getty/5597: #0: ffff88814df200a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002fd62f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211 1 lock held by syz.2.510/8735: 1 lock held by syz.5.684/9810: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.5.684/9816: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.5.684/9819: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.5.684/9820: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.0.704/9945: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.6.825/10794: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.2.928/11468: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.9.990/11855: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.3.1033/12141: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.3.1033/12146: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.3.1033/12147: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.3.1033/12151: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.3.1033/12154: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 2 locks held by syz.3.1033/12156: #0: ffffffff8fbe8b10 (snd_ioctl_rwsem){++++}-{4:4}, at: class_rwsem_read_constructor include/linux/rwsem.h:241 [inline] #0: ffffffff8fbe8b10 (snd_ioctl_rwsem){++++}-{4:4}, at: snd_ctl_ioctl+0x83e/0x1880 sound/core/control.c:1967 #1: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #1: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.7.1039/12220: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 3 locks held by syz.5.1049/12359: #0: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: do_ip_setsockopt+0x127d/0x3cd0 net/ipv4/ip_sockglue.c:1077 #1: ffff888058e82158 (sk_lock-AF_INET){+.+.}-{0:0}, at: do_ip_setsockopt+0x1a2d/0x3cd0 net/ipv4/ip_sockglue.c:1078 #2: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #2: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 1 lock held by syz.5.1049/12366: #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline] #0: ffff888148cc6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x143/0x8c0 mm/readahead.c:226 2 locks held by syz-executor/12360: #0: ffffffff8fca2fd0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x328/0x570 net/core/net_namespace.c:496 #1: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: ip_tunnel_init_net+0x20e/0x720 net/ipv4/ip_tunnel.c:1159 1 lock held by syz.1.1051/12370: #0: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517 2 locks held by syz-executor/12379: #0: ffffffff8fca2fd0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x328/0x570 net/core/net_namespace.c:496 #1: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3878 2 locks held by syz-executor/12383: #0: ffffffff8fca2fd0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x328/0x570 net/core/net_namespace.c:496 #1: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3878 2 locks held by syz-executor/12389: #0: ffffffff8fca2fd0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x328/0x570 net/core/net_namespace.c:496 #1: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3878 2 locks held by syz-executor/12391: #0: ffffffff8fca2fd0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x328/0x570 net/core/net_namespace.c:496 #1: ffffffff8fcaf448 (rtnl_mutex){+.+.}-{4:4}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3878 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #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: 11 Comm: kworker/u8:0 Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: bat_events batadv_nc_worker RIP: 0010:__lock_release kernel/locking/lockdep.c:5533 [inline] RIP: 0010:lock_release+0x2ac/0xa30 kernel/locking/lockdep.c:5870 Code: 7e 55 0a 89 5c 24 44 89 da 85 c0 0f 84 f0 01 00 00 4d 85 f6 0f 84 1b 03 00 00 49 8d 5e 24 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 2a 05 00 00 83 3b 00 0f 85 2d 04 00 00 4d 8d 66 20 4c RSP: 0018:ffffc900001079a0 EFLAGS: 00000803 RAX: 0000000000000000 RBX: ffff88801d2cc754 RCX: ffffc90000107a03 RDX: 0000000000000002 RSI: ffffffff8e937aa0 RDI: ffff88801d2cc730 RBP: ffffc90000107ad8 R08: ffffffff901945f7 R09: 1ffffffff20328be R10: dffffc0000000000 R11: fffffbfff20328bf R12: 000000000000000a R13: 0000000000000002 R14: ffff88801d2cc730 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4ff348df1b CR3: 0000000034564000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:347 [inline] rcu_read_unlock include/linux/rcupdate.h:880 [inline] batadv_nc_process_nc_paths+0x2f0/0x3a0 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