INFO: task syz.2.2780:17965 blocked for more than 143 seconds. Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2780 state:D stack:24272 pid:17965 tgid:17964 ppid:16712 flags:0x20000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 do_sync_mmap_readahead+0x49c/0x970 filemap_fault+0x828/0x1760 mm/filemap.c:3314 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1109/0x1bc0 mm/memory.c:5849 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:__get_user_4+0x11/0x20 arch/x86/lib/getuser.S:83 Code: 01 ca c3 cc cc cc cc 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 c2 48 c1 fa 3f 48 09 d0 0f 01 cb <8b> 10 31 c0 0f 01 ca c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 RSP: 0018:ffffc9000bb3fc70 EFLAGS: 00050206 RAX: 0000000020000000 RBX: 0000000000000114 RCX: ffffc9000bb3fb03 RDX: 0000000000000000 RSI: ffffffff8c0ae6e0 RDI: ffffffff8c608f40 RBP: ffff888027680f80 R08: ffffffff9018766f R09: 1ffffffff2030ecd R10: dffffc0000000000 R11: fffffbfff2030ece R12: dffffc0000000000 R13: 0000000020000000 R14: 0000000000002721 R15: ffff88807c68da00 rds_getsockopt+0x80/0x530 net/rds/af_rds.c:493 do_sock_getsockopt+0x3c4/0x7e0 net/socket.c:2386 __sys_getsockopt+0x271/0x330 net/socket.c:2415 __do_sys_getsockopt net/socket.c:2425 [inline] __se_sys_getsockopt net/socket.c:2422 [inline] __ia32_sys_getsockopt+0xb5/0xd0 net/socket.c:2422 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf748d579 RSP: 002b:00000000f577656c EFLAGS: 00000206 ORIG_RAX: 000000000000016d RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 0000000000000114 RDX: 0000000000002721 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz.2.2780:17968 blocked for more than 144 seconds. Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2780 state:D stack:25968 pid:17968 tgid:17964 ppid:16712 flags:0x20000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 do_sync_mmap_readahead+0x49c/0x970 filemap_fault+0x828/0x1760 mm/filemap.c:3314 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1109/0x1bc0 mm/memory.c:5849 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 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:ffffc90009557a18 EFLAGS: 00050216 RAX: ffffffff84b29801 RBX: 00000000200000a0 RCX: 0000000000000020 RDX: 0000000000000001 RSI: 0000000020000080 RDI: ffffc90009557ae0 RBP: dffffc0000000000 R08: ffffc90009557aff R09: 1ffff920012aaf5f R10: dffffc0000000000 R11: fffff520012aaf60 R12: 0000000020000080 R13: ffff88806705bc00 R14: ffffc90009557ae0 R15: 0000000000000020 copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:125 [inline] _inline_copy_from_user include/linux/uaccess.h:163 [inline] _copy_from_user+0x8c/0xe0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:196 [inline] get_user_ifreq+0x116/0x200 net/socket.c:3349 sock_do_ioctl+0x1a5/0x460 net/socket.c:1234 compat_sock_ioctl_trans net/socket.c:3515 [inline] compat_sock_ioctl+0xc87/0xf20 net/socket.c:3541 __do_compat_sys_ioctl fs/ioctl.c:1007 [inline] __se_compat_sys_ioctl+0x51c/0xca0 fs/ioctl.c:950 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf748d579 RSP: 002b:00000000f575556c EFLAGS: 00000206 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000008933 RDX: 0000000020000080 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz.2.2780:17972 blocked for more than 145 seconds. Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2780 state:D stack:26224 pid:17972 tgid:17964 ppid:16712 flags:0x20000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 do_sync_mmap_readahead+0x49c/0x970 filemap_fault+0x828/0x1760 mm/filemap.c:3314 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1109/0x1bc0 mm/memory.c:5849 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 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:ffffc90009297b10 EFLAGS: 00050206 RAX: ffffffff84b29801 RBX: 000000002000025c RCX: 000000000000001c RDX: 0000000000000001 RSI: 0000000020000240 RDI: ffffc90009297ba0 RBP: ffffc90009297c30 R08: 0000000000000003 R09: fffff52001252f77 R10: dffffc0000000000 R11: fffff52001252f77 R12: 0000000020000240 R13: dffffc0000000000 R14: ffffc90009297ba0 R15: 000000000000001c copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:125 [inline] _inline_copy_from_user include/linux/uaccess.h:163 [inline] _copy_from_user+0x8c/0xe0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:196 [inline] get_compat_msghdr+0xae/0x730 net/compat.c:91 sendmsg_copy_msghdr net/socket.c:2626 [inline] ___sys_sendmsg net/socket.c:2647 [inline] __sys_sendmsg+0x273/0x3a0 net/socket.c:2680 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf748d579 RSP: 002b:00000000f573456c EFLAGS: 00000206 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000020000240 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz.2.2780:17976 blocked for more than 145 seconds. Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2780 state:D stack:26224 pid:17976 tgid:17964 ppid:16712 flags:0x20004004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 do_sync_mmap_readahead+0x49c/0x970 filemap_fault+0x828/0x1760 mm/filemap.c:3314 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1109/0x1bc0 mm/memory.c:5849 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 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:ffffc9000447fb10 EFLAGS: 00050206 RAX: ffffffff84b29801 RBX: 00000000200007dc RCX: 000000000000001c RDX: 0000000000000001 RSI: 00000000200007c0 RDI: ffffc9000447fba0 RBP: ffffc9000447fc30 R08: 0000000000000003 R09: fffff5200088ff77 R10: dffffc0000000000 R11: fffff5200088ff77 R12: 00000000200007c0 R13: dffffc0000000000 R14: ffffc9000447fba0 R15: 000000000000001c copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:125 [inline] _inline_copy_from_user include/linux/uaccess.h:163 [inline] _copy_from_user+0x8c/0xe0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:196 [inline] get_compat_msghdr+0xae/0x730 net/compat.c:91 sendmsg_copy_msghdr net/socket.c:2626 [inline] ___sys_sendmsg net/socket.c:2647 [inline] __sys_sendmsg+0x273/0x3a0 net/socket.c:2680 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf748d579 RSP: 002b:00000000f551156c EFLAGS: 00000206 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200007c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz.2.2780:17978 blocked for more than 146 seconds. Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2780 state:D stack:26736 pid:17978 tgid:17964 ppid:16712 flags:0x20000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 do_sync_mmap_readahead+0x49c/0x970 filemap_fault+0x828/0x1760 mm/filemap.c:3314 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1109/0x1bc0 mm/memory.c:5849 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 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:ffffc9000923fd10 EFLAGS: 00050202 RAX: ffffffff84b29801 RBX: 0000000020000108 RCX: 0000000000000048 RDX: 0000000000000001 RSI: 00000000200000c0 RDI: ffffc9000923fd80 RBP: ffffc9000923fea8 R08: ffffc9000923fdc7 R09: 1ffff92001247fb8 R10: dffffc0000000000 R11: fffff52001247fb9 R12: 00000000200000c0 R13: ffffc9000923fd80 R14: ffffc9000923fd80 R15: 0000000000000048 copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:125 [inline] _inline_copy_from_user include/linux/uaccess.h:163 [inline] _copy_from_user+0x8c/0xe0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:196 [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:5683 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline] __se_sys_bpf kernel/bpf/syscall.c:5815 [inline] __ia32_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf748d579 RSP: 002b:00000000f52ee56c EFLAGS: 00000206 ORIG_RAX: 0000000000000165 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000200000c0 RDX: 0000000000000048 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz.2.2780:17980 blocked for more than 147 seconds. Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2780 state:D stack:26736 pid:17980 tgid:17964 ppid:16712 flags:0x20000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 do_sync_mmap_readahead+0x49c/0x970 filemap_fault+0x828/0x1760 mm/filemap.c:3314 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1109/0x1bc0 mm/memory.c:5849 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 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:ffffc9000938fd10 EFLAGS: 00050202 RAX: ffffffff84b29801 RBX: 0000000020000494 RCX: 0000000000000094 RDX: 0000000000000001 RSI: 0000000020000400 RDI: ffffc9000938fd80 RBP: ffffc9000938fea8 R08: ffffc9000938fe13 R09: 1ffff92001271fc2 R10: dffffc0000000000 R11: fffff52001271fc3 R12: 0000000020000400 R13: ffffc9000938fd80 R14: ffffc9000938fd80 R15: 0000000000000094 copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:125 [inline] _inline_copy_from_user include/linux/uaccess.h:163 [inline] _copy_from_user+0x8c/0xe0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:196 [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:5683 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline] __se_sys_bpf kernel/bpf/syscall.c:5815 [inline] __ia32_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf748d579 RSP: 002b:00000000f50cb56c EFLAGS: 00000206 ORIG_RAX: 0000000000000165 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020000400 RDX: 0000000000000094 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz.2.2780:17981 blocked for more than 147 seconds. Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2780 state:D stack:26736 pid:17981 tgid:17964 ppid:16712 flags:0x20000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 do_sync_mmap_readahead+0x49c/0x970 filemap_fault+0x828/0x1760 mm/filemap.c:3314 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1109/0x1bc0 mm/memory.c:5849 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 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:ffffc90004607d10 EFLAGS: 00050206 RAX: ffffffff84b29801 RBX: 0000000020000590 RCX: 0000000000000090 RDX: 0000000000000001 RSI: 0000000020000500 RDI: ffffc90004607d80 RBP: ffffc90004607ea8 R08: ffffc90004607e0f R09: 1ffff920008c0fc1 R10: dffffc0000000000 R11: fffff520008c0fc2 R12: 0000000020000500 R13: ffffc90004607d80 R14: ffffc90004607d80 R15: 0000000000000090 copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:125 [inline] _inline_copy_from_user include/linux/uaccess.h:163 [inline] _copy_from_user+0x8c/0xe0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:196 [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:5683 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline] __se_sys_bpf kernel/bpf/syscall.c:5815 [inline] __ia32_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf748d579 RSP: 002b:00000000f4ea856c EFLAGS: 00000206 ORIG_RAX: 0000000000000165 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020000500 RDX: 0000000000000090 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz.2.2780:17985 blocked for more than 148 seconds. Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.2780 state:D stack:25520 pid:17985 tgid:17964 ppid:16712 flags:0x20000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 do_sync_mmap_readahead+0x49c/0x970 filemap_fault+0x828/0x1760 mm/filemap.c:3314 __do_fault+0x135/0x460 mm/memory.c:4672 do_read_fault mm/memory.c:5078 [inline] do_fault mm/memory.c:5208 [inline] do_pte_missing mm/memory.c:3964 [inline] handle_pte_fault+0x321f/0x6fc0 mm/memory.c:5538 __handle_mm_fault mm/memory.c:5681 [inline] handle_mm_fault+0x1109/0x1bc0 mm/memory.c:5849 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x2b9/0x8c0 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:ffffc9000416f850 EFLAGS: 00050202 RAX: ffffffff84b29801 RBX: 00000000200003dc RCX: 000000000000005c RDX: 0000000000000001 RSI: 0000000020000380 RDI: ffffc9000416fb40 RBP: ffffc9000416fd30 R08: 0000000000000003 R09: fffff5200082df73 R10: dffffc0000000000 R11: fffff5200082df73 R12: 0000000020000380 R13: ffffc9000416fb40 R14: ffffc9000416fb40 R15: 000000000000005c copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:125 [inline] _inline_copy_from_user include/linux/uaccess.h:163 [inline] _copy_from_user+0x8c/0xe0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:196 [inline] cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:175 [inline] cec_ioctl+0x925/0x3380 drivers/media/cec/core/cec-api.c:528 __do_compat_sys_ioctl fs/ioctl.c:1007 [inline] __se_compat_sys_ioctl+0x51c/0xca0 fs/ioctl.c:950 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf748d579 RSP: 002b:00000000f4c8556c EFLAGS: 00000206 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000c05c6104 RDX: 0000000020000380 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Showing all locks held in the system: 5 locks held by kworker/u8:0/11: #0: ffff88801bae5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88801bae5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90000107d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90000107d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8fc7f750 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594 #3: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: wg_netns_pre_exit+0x1f/0x1e0 drivers/net/wireguard/device.c:414 #4: ffff8880702f9428 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_netns_pre_exit+0xba/0x1e0 drivers/net/wireguard/device.c:419 1 lock held by khungtaskd/30: #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626 3 locks held by kworker/u8:4/61: #0: ffff88802fba0948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88802fba0948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900015cfd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc900015cfd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4194 3 locks held by kworker/u8:8/2930: #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900099f7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc900099f7d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276 2 locks held by getty/4988: #0: ffff888034b890a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211 5 locks held by kworker/0:6/5681: #0: ffff8880222e2548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff8880222e2548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90002fb7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90002fb7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff8880290ec190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #2: ffff8880290ec190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849 #3: ffff8880291a5518 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3206 [inline] #3: ffff8880291a5518 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5418 [inline] #3: ffff8880291a5518 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] #3: ffff8880291a5518 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline] #3: ffff8880291a5518 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x25b9/0x5150 drivers/usb/core/hub.c:5903 #4: ffff8880283bf368 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5419 [inline] #4: ffff8880283bf368 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] #4: ffff8880283bf368 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline] #4: ffff8880283bf368 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x25f7/0x5150 drivers/usb/core/hub.c:5903 1 lock held by syz.2.2402/16571: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:845 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1fc/0x530 block/fops.c:807 1 lock held by syz.2.2780/17965: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 1 lock held by syz.2.2780/17968: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 1 lock held by syz.2.2780/17972: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 1 lock held by syz.2.2780/17976: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 1 lock held by syz.2.2780/17978: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 1 lock held by syz.2.2780/17980: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 1 lock held by syz.2.2780/17981: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 1 lock held by syz.2.2780/17985: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 2 locks held by kworker/u8:6/19246: 1 lock held by syz.0.3100/19461: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 1 lock held by syz.4.3204/19788: #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline] #0: ffff8880230ace40 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225 1 lock held by syz-executor/19842: #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510 4 locks held by syz-executor/19891: #0: ffff888052424d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline] #0: ffff888052424d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2698 #1: ffff888052424078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5183 #2: ffffffff8fdf7f28 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1972 [inline] #2: ffffffff8fdf7f28 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xa6/0x240 net/bluetooth/hci_conn.c:2592 #3: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:328 [inline] #3: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:958 1 lock held by syz.2.3264/20071: #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff8fc8c308 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510 2 locks held by syz.1.3266/20063: #0: ffff888031204d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:481 [inline] #0: ffff888031204d80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2698 #1: ffff888031204078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x572/0x11a0 net/bluetooth/hci_sync.c:5183 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 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:223 [inline] watchdog+0xff4/0x1040 kernel/hung_task.c:379 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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 19246 Comm: kworker/u8:6 Not tainted 6.11.0-rc7-syzkaller-00151-gd42f7708e27c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: bat_events batadv_nc_worker RIP: 0010:__kasan_check_read+0x0/0x20 mm/kasan/shadow.c:30 Code: 8e 4c 89 fe e8 a1 d2 bb 09 31 db eb d0 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 89 f6 48 8b 0c 24 31 d2 e9 6f e6 ff ff 66 2e 0f 1f 84 RSP: 0018:ffffc900035879d8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90187668 RBP: ffffc90003587b40 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff2030ece R12: 1ffff920006b0f44 R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056544f1d3131 CR3: 000000007b168000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000400 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] cpumask_test_cpu include/linux/cpumask.h:562 [inline] cpu_online include/linux/cpumask.h:1105 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0xd4/0x550 kernel/locking/lockdep.c:5730 rcu_lock_acquire include/linux/rcupdate.h:326 [inline] rcu_read_lock include/linux/rcupdate.h:838 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline] batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x870/0xd30 kernel/workqueue.c:3393 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