hrtimer: interrupt took 28168 ns watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz-executor040:6526] Modules linked in: irq event stamp: 33533922 hardirqs last enabled at (33533921): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 hardirqs last disabled at (33533922): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1097 softirqs last enabled at (12533002): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (12533002): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 softirqs last disabled at (12532291): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (12532291): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 CPU: 0 PID: 6526 Comm: syz-executor040 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5605 Code: 96 a5 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffffc90005367a60 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff92000a6cf4e RCX: ffffffff815c907f RDX: 1ffff11002ecbc2b RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8fd5ca37 R10: fffffbfff1fab946 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: ffff8880793f4728 R15: 0000000000000000 FS: 00005555565ad300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020c00000 CR3: 00000000155eb000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __might_fault mm/memory.c:5253 [inline] __might_fault+0x104/0x170 mm/memory.c:5238 _copy_from_user+0x27/0x180 lib/usercopy.c:13 copy_from_user include/linux/uaccess.h:192 [inline] generic_map_update_batch+0x39f/0x5b0 kernel/bpf/syscall.c:1406 bpf_map_do_batch+0x2dd/0x5c0 kernel/bpf/syscall.c:4221 __sys_bpf+0x28cd/0x5950 kernel/bpf/syscall.c:4697 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline] __se_sys_bpf kernel/bpf/syscall.c:4735 [inline] __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4735 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: 0033:0x7faafcc40f29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc4007e798 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faafcc40f29 RDX: 0000000000000038 RSI: 0000000020000480 RDI: 000000000000001a RBP: 0000000000000000 R08: 00007ffc4007e938 R09: 00007ffc4007e938 R10: 00007ffc4007e938 R11: 0000000000000246 R12: 00007faafcc047b0 R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 96 xchg %eax,%esi 1: a5 movsl %ds:(%rsi),%es:(%rdi) 2: 7e 83 jle 0xffffff87 4: f8 clc 5: 01 0f add %ecx,(%rdi) 7: 85 b4 02 00 00 9c 58 test %esi,0x589c0000(%rdx,%rax,1) e: f6 c4 02 test $0x2,%ah 11: 0f 85 9f 02 00 00 jne 0x2b6 17: 48 83 7c 24 08 00 cmpq $0x0,0x8(%rsp) 1d: 74 01 je 0x20 1f: fb sti 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 48 01 c3 add %rax,%rbx <-- trapping instruction 2d: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 34: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx) 3b: 00 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 84 .byte 0x84 3f: 24 .byte 0x24