BUG: unable to handle page fault for address: ffffffff81c1b44b #PF: supervisor write access in kernel mode #PF: error_code(0x0003) - permissions violation PGD 5e11067 P4D 5e11067 PUD 5e12063 PMD 1c001e1 Oops: 0003 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1290 Comm: syz.2.234 Not tainted 5.4.290-syzkaller-00017-g6b07fcd94a6a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 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 a5 66 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 32 51 3f 00 <4d> 89 65 00 eb 05 e8 77 66 0f 00 49 bd 00 00 00 00 00 fc ff df 42 RSP: 0018:ffff8881f6e09d60 EFLAGS: 00010046 RAX: 1ffffffff0383689 RBX: 1ffff1103c2ede39 RCX: dffffc0000000000 RDX: 0000000000000103 RSI: 0000000000000004 RDI: ffff8881f6e09ce0 RBP: ffff8881f6e09ec8 R08: dffffc0000000000 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881f6e09e28 R13: ffffffff81c1b44b R14: 1ffff1103c2ede38 R15: ffff8881e176f1c8 FS: 00007fac08eb36c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff81c1b44b CR3: 00000001eb694000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000602 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:539 [inline] smp_apic_timer_interrupt+0x11a/0x490 arch/x86/kernel/apic/apic.c:1161 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834 RIP: 0010:vm_normal_page+0x68/0x1d0 mm/memory.c:612 Code: b6 c3 48 f7 d8 4c 31 e0 48 c1 e8 0c 49 bd ff ff ff ff ff 00 00 00 49 21 c5 4c 89 e6 48 81 e6 00 02 00 00 31 ff e8 c8 b1 d9 ff <4c> 89 e0 48 25 00 02 00 00 75 3f 48 8b 1d de b7 c1 04 4c 89 ef 48 RSP: 0018:ffff8881d04ff708 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000002 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffff8881e5b4cec0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8881d04ff901 R08: ffffffff818a9c98 R09: fffff94000ed5309 R10: 0000000000000000 R11: dffffc0000000001 R12: 80000001daa62007 R13: 00000000001daa62 R14: 00007fac09ead000 R15: ffff8881d358a818 copy_one_pte mm/memory.c:802 [inline] copy_pte_range mm/memory.c:855 [inline] copy_pmd_range mm/memory.c:906 [inline] copy_pud_range mm/memory.c:940 [inline] copy_p4d_range mm/memory.c:962 [inline] copy_page_range+0x100f/0x26f0 mm/memory.c:1024 dup_mmap kernel/fork.c:608 [inline] dup_mm kernel/fork.c:1379 [inline] copy_mm+0xb23/0x10d0 kernel/fork.c:1435 copy_process+0x1291/0x3230 kernel/fork.c:2052 _do_fork+0x197/0x900 kernel/fork.c:2399 __do_sys_clone kernel/fork.c:2557 [inline] __se_sys_clone kernel/fork.c:2538 [inline] __x64_sys_clone+0x26b/0x2c0 kernel/fork.c:2538 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 RIP: 0033:0x7fac0a86a169 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:00007fac08eb2fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fac0aa83080 RCX: 00007fac0a86a169 RDX: 00004000000003c0 RSI: 0000000000000000 RDI: 0000000000001000 RBP: 00007fac0a8eb2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fac0aa83080 R15: 00007ffe871e20c8 Modules linked in: CR2: ffffffff81c1b44b ---[ end trace e69e500b19b953f1 ]--- 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 a5 66 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 32 51 3f 00 <4d> 89 65 00 eb 05 e8 77 66 0f 00 49 bd 00 00 00 00 00 fc ff df 42 RSP: 0018:ffff8881f6e09d60 EFLAGS: 00010046 RAX: 1ffffffff0383689 RBX: 1ffff1103c2ede39 RCX: dffffc0000000000 RDX: 0000000000000103 RSI: 0000000000000004 RDI: ffff8881f6e09ce0 RBP: ffff8881f6e09ec8 R08: dffffc0000000000 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881f6e09e28 R13: ffffffff81c1b44b R14: 1ffff1103c2ede38 R15: ffff8881e176f1c8 FS: 00007fac08eb36c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff81c1b44b CR3: 00000001eb694000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000602 ---------------- Code disassembly (best guess): 0: 74 2e je 0x30 2: e8 a5 66 0f 00 call 0xf66ac 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 32 51 3f 00 call 0x3f515c * 2a: 4d 89 65 00 mov %r12,0x0(%r13) <-- trapping instruction 2e: eb 05 jmp 0x35 30: e8 77 66 0f 00 call 0xf66ac 35: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 3c: fc ff df 3f: 42 rex.X