BUG: unable to handle page fault for address: ffffffff844001e7 #PF: supervisor write access in kernel mode #PF: error_code(0x0003) - permissions violation PGD 5c11067 P4D 5c11067 PUD 5c12063 PMD 44001e1 Oops: 0003 [#1] PREEMPT SMP KASAN CPU: 1 PID: 500 Comm: syz.0.36 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__hlist_del include/linux/list.h:791 [inline] RIP: 0010:detach_timer kernel/time/timer.c:824 [inline] RIP: 0010:expire_timers kernel/time/timer.c:1482 [inline] RIP: 0010:__run_timers+0x759/0xb60 kernel/time/timer.c:1817 Code: 74 2e e8 aa dd 0e 00 49 83 c4 08 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 e7 e8 57 d8 3c 00 <4d> 89 2c 24 eb 05 e8 7c dd 0e 00 49 bd 00 00 00 00 00 fc ff df 42 RSP: 0018:ffff8881f6f09d40 EFLAGS: 00010046 RAX: 1ffffffff088003c RBX: 1ffff1103cb5f639 RCX: dffffc0000000000 RDX: 0000000080000101 RSI: 0000000000000004 RDI: ffff8881f6f09cc0 RBP: ffff8881f6f09eb8 R08: 0000000000000004 R09: 0000000000000003 R10: ffffed103ede1398 R11: 1ffff1103ede1398 R12: ffffffff844001e7 R13: ffff8881f6f09e08 R14: ffff8881e5afb1c8 R15: 1ffff1103cb5f638 FS: 00007f36fb3776c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff844001e7 CR3: 00000001e4c3d000 CR4: 00000000003406a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: run_timer_softirq+0x6a/0xf0 kernel/time/timer.c:1830 __do_softirq+0x236/0x660 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x197/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:539 [inline] smp_apic_timer_interrupt+0x11d/0x490 arch/x86/kernel/apic/apic.c:1161 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834 RIP: 0010:core_kernel_text kernel/extable.c:102 [inline] RIP: 0010:kernel_text_address kernel/extable.c:123 [inline] RIP: 0010:__kernel_text_address+0x6/0x100 kernel/extable.c:103 Code: 00 eb b0 90 55 48 89 e5 48 81 ff 00 00 c0 85 0f 93 c0 48 81 ff 40 bb 2c 86 0f 92 c1 20 c1 0f b6 c1 5d c3 90 55 48 89 e5 41 57 <41> 56 41 54 53 48 81 ff 00 00 00 81 0f 93 c0 48 81 ff 68 7e 60 84 RSP: 0018:ffff8881e32cf448 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff8881e32cf4d0 RCX: 5f9076a85fb67900 RDX: ffff8881e32cfbf8 RSI: 1ffff1103c659e92 RDI: ffffffff816fb39b RBP: ffff8881e32cf450 R08: dffffc0000000000 R09: ffff8881e32cf488 R10: ffffed103c659e9d R11: 1ffff1103c659e91 R12: ffff8881e3043f00 R13: 1ffff1103c659ea4 R14: dffffc0000000000 R15: 1ffff1103c659e9a unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_frame.c:19 arch_stack_walk+0xf0/0x140 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0xaa/0xf0 kernel/stacktrace.c:123 save_stack+0x97/0x560 mm/page_owner.c:122 __set_page_owner+0x39/0x1e0 mm/page_owner.c:191 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook mm/page_alloc.c:2165 [inline] prep_new_page+0x35e/0x370 mm/page_alloc.c:2171 get_page_from_freelist+0x1296/0x1310 mm/page_alloc.c:3794 __alloc_pages_nodemask+0x202/0x4b0 mm/page_alloc.c:4894 __alloc_pages include/linux/gfp.h:503 [inline] __alloc_pages_node include/linux/gfp.h:516 [inline] alloc_pages_node include/linux/gfp.h:530 [inline] pcpu_alloc_pages mm/percpu-vm.c:94 [inline] pcpu_populate_chunk+0x1b6/0xce0 mm/percpu-vm.c:284 pcpu_alloc+0x8ec/0x1120 mm/percpu.c:1714 __alloc_percpu_gfp+0x25/0x30 mm/percpu.c:1783 prealloc_init+0x24b/0x810 kernel/bpf/hashtab.c:154 htab_map_alloc+0x65f/0x940 kernel/bpf/hashtab.c:385 find_and_alloc_map kernel/bpf/syscall.c:122 [inline] map_create+0x2d8/0x980 kernel/bpf/syscall.c:573 __do_sys_bpf kernel/bpf/syscall.c:2873 [inline] __se_sys_bpf+0x2dc/0x570 kernel/bpf/syscall.c:2849 __x64_sys_bpf+0x7b/0x90 kernel/bpf/syscall.c:2849 do_syscall_64+0xcf/0x170 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 RIP: 0033:0x7f36fcd0e969 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f36fb377038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f36fcf35fa0 RCX: 00007f36fcd0e969 RDX: 0000000000000050 RSI: 0000200000000380 RDI: 0000000000000000 RBP: 00007f36fcd90ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f36fcf35fa0 R15: 00007ffda4f267b8 Modules linked in: CR2: ffffffff844001e7 ---[ end trace da54aa5dffce66f4 ]--- RIP: 0010:__hlist_del include/linux/list.h:791 [inline] RIP: 0010:detach_timer kernel/time/timer.c:824 [inline] RIP: 0010:expire_timers kernel/time/timer.c:1482 [inline] RIP: 0010:__run_timers+0x759/0xb60 kernel/time/timer.c:1817 Code: 74 2e e8 aa dd 0e 00 49 83 c4 08 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 e7 e8 57 d8 3c 00 <4d> 89 2c 24 eb 05 e8 7c dd 0e 00 49 bd 00 00 00 00 00 fc ff df 42 RSP: 0018:ffff8881f6f09d40 EFLAGS: 00010046 RAX: 1ffffffff088003c RBX: 1ffff1103cb5f639 RCX: dffffc0000000000 RDX: 0000000080000101 RSI: 0000000000000004 RDI: ffff8881f6f09cc0 RBP: ffff8881f6f09eb8 R08: 0000000000000004 R09: 0000000000000003 R10: ffffed103ede1398 R11: 1ffff1103ede1398 R12: ffffffff844001e7 R13: ffff8881f6f09e08 R14: ffff8881e5afb1c8 R15: 1ffff1103cb5f638 FS: 00007f36fb3776c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff844001e7 CR3: 00000001e4c3d000 CR4: 00000000003406a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 74 2e je 0x30 2: e8 aa dd 0e 00 call 0xeddb1 7: 49 83 c4 08 add $0x8,%r12 b: 4c 89 e0 mov %r12,%rax e: 48 c1 e8 03 shr $0x3,%rax 12: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 19: fc ff df 1c: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) 20: 74 08 je 0x2a 22: 4c 89 e7 mov %r12,%rdi 25: e8 57 d8 3c 00 call 0x3cd881 * 2a: 4d 89 2c 24 mov %r13,(%r12) <-- trapping instruction 2e: eb 05 jmp 0x35 30: e8 7c dd 0e 00 call 0xeddb1 35: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 3c: fc ff df 3f: 42 rex.X