------------[ cut here ]------------ WARNING: CPU: 0 PID: 15064 at net/core/gen_stats.c:157 gnet_stats_add_basic+0x4d/0x2a0 net/core/gen_stats.c:157 Modules linked in: CPU: 0 PID: 15064 Comm: syz-executor.0 Not tainted 5.15.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:gnet_stats_add_basic+0x4d/0x2a0 net/core/gen_stats.c:157 Code: 0f 84 69 01 00 00 e8 52 a1 59 fa 31 ff 65 8b 2d b9 ab e4 78 81 e5 00 01 ff 00 89 ee e8 7c a8 59 fa 85 ed 74 10 e8 33 a1 59 fa <0f> 0b 4d 85 f6 0f 84 70 01 00 00 49 c7 c7 e4 ae 6e 8d bd ff ff ff RSP: 0018:ffffc90000007b98 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88804477b090 RCX: 0000000000000100 RDX: ffff88801d913900 RSI: ffffffff871d445d RDI: 0000000000000003 RBP: 0000000000000100 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff871d45d0 R11: 0000000000000000 R12: ffff88806f6d1808 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f2b8ffe5700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002073f000 CR3: 0000000048ce2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: est_fetch_counters+0xc3/0x160 net/core/gen_estimator.c:69 est_timer+0x92/0x730 net/core/gen_estimator.c:83 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:lock_is_held_type+0xfd/0x140 kernel/locking/lockdep.c:5673 Code: 00 00 b8 ff ff ff ff 65 0f c1 05 6e c5 c9 76 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 ed eb b9 0f 0b 48 RSP: 0018:ffffc90016dcf628 EFLAGS: 00000286 RAX: 0000000000000046 RBX: 0000000000000002 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff8b981e20 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff82144eb3 R11: 0000000000000000 R12: ffff88801d913900 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff88801d914348 lock_is_held include/linux/lockdep.h:283 [inline] ___might_sleep+0x3a/0x2c0 kernel/sched/core.c:9504 percpu_down_read include/linux/percpu-rwsem.h:49 [inline] __sb_start_write include/linux/fs.h:1812 [inline] sb_start_pagefault include/linux/fs.h:1911 [inline] ext4_page_mkwrite+0x1dc/0x1a50 fs/ext4/inode.c:6025 do_page_mkwrite+0x1a7/0x550 mm/memory.c:2870 do_shared_fault mm/memory.c:4237 [inline] do_fault mm/memory.c:4305 [inline] handle_pte_fault mm/memory.c:4559 [inline] __handle_mm_fault+0x264a/0x5320 mm/memory.c:4694 handle_mm_fault+0x1c8/0x790 mm/memory.c:4792 faultin_page mm/gup.c:937 [inline] __get_user_pages+0x503/0xf80 mm/gup.c:1158 __get_user_pages_locked mm/gup.c:1343 [inline] __gup_longterm_locked+0x216/0xfb0 mm/gup.c:1797 pin_user_pages+0x84/0xc0 mm/gup.c:2959 xdp_umem_pin_pages net/xdp/xdp_umem.c:107 [inline] xdp_umem_reg net/xdp/xdp_umem.c:219 [inline] xdp_umem_create+0x969/0x1160 net/xdp/xdp_umem.c:252 xsk_setsockopt+0x73e/0x9e0 net/xdp/xsk.c:1053 __sys_setsockopt+0x2db/0x610 net/socket.c:2176 __do_sys_setsockopt net/socket.c:2187 [inline] __se_sys_setsockopt net/socket.c:2184 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2184 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f2b92a90a39 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2b8ffe5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f2b92b94020 RCX: 00007f2b92a90a39 RDX: 0000000000000004 RSI: 000000000000011b RDI: 0000000000000008 RBP: 00007f2b92aeac5f R08: 0000000000200d6f R09: 0000000000000000 R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe2823527f R14: 00007f2b8ffe5300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: b8 ff ff ff ff mov $0xffffffff,%eax 7: 65 0f c1 05 6e c5 c9 xadd %eax,%gs:0x76c9c56e(%rip) # 0x76c9c57d e: 76 f: 83 f8 01 cmp $0x1,%eax 12: 75 29 jne 0x3d 14: 9c pushfq 15: 58 pop %rax 16: f6 c4 02 test $0x2,%ah 19: 75 3d jne 0x58 1b: 48 f7 04 24 00 02 00 testq $0x200,(%rsp) 22: 00 23: 74 01 je 0x26 25: fb sti 26: 48 83 c4 08 add $0x8,%rsp * 2a: 44 89 e8 mov %r13d,%eax <-- trapping instruction 2d: 5b pop %rbx 2e: 5d pop %rbp 2f: 41 5c pop %r12 31: 41 5d pop %r13 33: 41 5e pop %r14 35: 41 5f pop %r15 37: c3 retq 38: 45 31 ed xor %r13d,%r13d 3b: eb b9 jmp 0xfffffff6 3d: 0f 0b ud2 3f: 48 rex.W