BUG: unable to handle page fault for address: ffffffff818fdb42 #PF: supervisor write access in kernel mode #PF: error_code(0x0003) - permissions violation PGD 5e11067 P4D 5e11067 PUD 5e12063 PMD 18001e1 Oops: 0003 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5181 Comm: syz.4.1799 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 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+0x7be/0xbe0 kernel/time/timer.c:1817 Code: 74 2e e8 e5 68 0f 00 49 83 c5 08 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ef e8 52 4e 3f 00 <4d> 89 65 00 eb 05 e8 b7 68 0f 00 49 bd 00 00 00 00 00 fc ff df 42 RSP: 0018:ffff8881f6e09d60 EFLAGS: 00010046 RAX: 1ffffffff031fb68 RBX: 1ffff1103cbd3639 RCX: dffffc0000000000 RDX: 0000000000000101 RSI: 0000000000000004 RDI: ffff8881f6e09ce0 RBP: ffff8881f6e09ec8 R08: dffffc0000000000 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881f6e09e20 R13: ffffffff818fdb42 R14: 1ffff1103cbd3638 R15: ffff8881e5e9b1c8 FS: 00007f01652436c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff818fdb42 CR3: 00000001e8a4f000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x195/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:538 [inline] smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834 RIP: 0010:convert_ctx_accesses kernel/bpf/verifier.c:8877 [inline] RIP: 0010:bpf_check+0x38c6/0xb340 kernel/bpf/verifier.c:9668 Code: b8 00 00 00 00 00 fc ff df 48 8b 8c 24 a0 00 00 00 80 3c 01 00 48 8b 9c 24 88 00 00 00 74 08 48 89 df e8 9d 57 24 00 48 8b 03 <48> 8b 4c 24 08 48 8b 54 24 58 4c 8d 34 11 49 63 ce 48 8d 0c 49 48 RSP: 0018:ffff8881e573f340 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffffc9000006f000 RBX: ffff8881db2dc250 RCX: 1ffff1103b65b84a RDX: ffffc9000214e000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff8881e573f910 R08: 0000000000000001 R09: ffffffff816fc8db R10: ffff8881f32e8000 R11: 000000000000000c R12: ffff8881db2dc000 R13: 000000000000007b R14: 0000000000000080 R15: 0000000000000000 bpf_prog_load kernel/bpf/syscall.c:1724 [inline] __do_sys_bpf kernel/bpf/syscall.c:2891 [inline] __se_sys_bpf+0x8139/0xbcb0 kernel/bpf/syscall.c:2849 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 RIP: 0033:0x7f0165fc1ae9 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:00007f0165243048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f016614ffa0 RCX: 00007f0165fc1ae9 RDX: 0000000000000090 RSI: 0000000020000840 RDI: 0000000000000005 RBP: 00007f0166042746 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f016614ffa0 R15: 00007ffcb083bb98 Modules linked in: CR2: ffffffff818fdb42 ---[ end trace 286bbbf6c99f4657 ]--- 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+0x7be/0xbe0 kernel/time/timer.c:1817 Code: 74 2e e8 e5 68 0f 00 49 83 c5 08 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ef e8 52 4e 3f 00 <4d> 89 65 00 eb 05 e8 b7 68 0f 00 49 bd 00 00 00 00 00 fc ff df 42 RSP: 0018:ffff8881f6e09d60 EFLAGS: 00010046 RAX: 1ffffffff031fb68 RBX: 1ffff1103cbd3639 RCX: dffffc0000000000 RDX: 0000000000000101 RSI: 0000000000000004 RDI: ffff8881f6e09ce0 RBP: ffff8881f6e09ec8 R08: dffffc0000000000 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881f6e09e20 R13: ffffffff818fdb42 R14: 1ffff1103cbd3638 R15: ffff8881e5e9b1c8 FS: 00007f01652436c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff818fdb42 CR3: 00000001e8a4f000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 74 2e je 0x30 2: e8 e5 68 0f 00 call 0xf68ec 7: 49 83 c5 08 add $0x8,%r13 b: 4c 89 e8 mov %r13,%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 ef mov %r13,%rdi 25: e8 52 4e 3f 00 call 0x3f4e7c * 2a: 4d 89 65 00 mov %r12,0x0(%r13) <-- trapping instruction 2e: eb 05 jmp 0x35 30: e8 b7 68 0f 00 call 0xf68ec 35: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 3c: fc ff df 3f: 42 rex.X