BUG: unable to handle page fault for address: ffffffff813e8a73 #PF: supervisor write access in kernel mode #PF: error_code(0x0003) - permissions violation PGD 5c11067 P4D 5c11067 PUD 5c12063 PMD 12001e1 Oops: 0003 [#1] PREEMPT SMP KASAN CPU: 0 PID: 163 Comm: udevd Tainted: G W 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:ffff8881f6e09d40 EFLAGS: 00010046 RAX: 1ffffffff027d14e RBX: 1ffff11039e3f639 RCX: dffffc0000000000 RDX: 0000000080000101 RSI: 0000000000000004 RDI: ffff8881f6e09cc0 RBP: ffff8881f6e09eb8 R08: 0000000000000004 R09: 0000000000000003 R10: ffffed103edc1398 R11: 1ffff1103edc1398 R12: ffffffff813e8a73 R13: ffff8881f6e09e00 R14: ffff8881cf1fb1c8 R15: 1ffff11039e3f638 FS: 00007f021ac22c80(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff813e8a73 CR3: 00000001ecb39000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 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:__sanitizer_cov_trace_pc+0x1/0x50 kernel/kcov.c:180 Code: 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 be 0c 00 00 00 48 c7 c7 00 96 d1 85 e8 6b f2 2d 00 5d c3 00 00 90 90 00 00 90 90 00 55 <48> 89 e5 48 8b 45 08 65 48 8b 0d 90 0e a3 7e 65 8b 15 95 0e a3 7e RSP: 0018:ffff8881ec76faf0 EFLAGS: 00040216 ORIG_RAX: ffffffffffffff13 RAX: ffffffff823670a2 RBX: 0000000000000fd0 RCX: 0000000000000000 RDX: ffff8881ecaf0fc0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8881ec76fb40 R08: dffffc0000000000 R09: fffff94000f1f981 R10: fffff94000f1f981 R11: 1ffffd4000f1f980 R12: 0000000000000008 R13: 0000000000000fe0 R14: fffffffffffffff0 R15: 0000000000000000 getname_flags+0xf4/0x500 fs/namei.c:152 user_path_at_empty+0x2f/0x50 fs/namei.c:2703 user_path_at include/linux/namei.h:49 [inline] vfs_statx+0x116/0x200 fs/stat.c:187 vfs_fstatat include/linux/fs.h:3389 [inline] __do_sys_newfstatat fs/stat.c:367 [inline] __se_sys_newfstatat+0xcc/0x350 fs/stat.c:361 __x64_sys_newfstatat+0x9b/0xb0 fs/stat.c:361 do_syscall_64+0xcf/0x170 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 RIP: 0033:0x7f021ad4d5f4 Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8 RSP: 002b:00007fff756cafd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 000055ea32d183f0 RCX: 00007f021ad4d5f4 RDX: 00007fff756cafe8 RSI: 00007fff756cb478 RDI: 00000000ffffff9c RBP: 00007fff756cb078 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff756cb478 R13: 00007fff756cafe8 R14: 000055ea32ce12c0 R15: 0000000000000000 Modules linked in: CR2: ffffffff813e8a73 ---[ end trace bdff18c18485f1c0 ]--- 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:ffff8881f6e09d40 EFLAGS: 00010046 RAX: 1ffffffff027d14e RBX: 1ffff11039e3f639 RCX: dffffc0000000000 RDX: 0000000080000101 RSI: 0000000000000004 RDI: ffff8881f6e09cc0 RBP: ffff8881f6e09eb8 R08: 0000000000000004 R09: 0000000000000003 R10: ffffed103edc1398 R11: 1ffff1103edc1398 R12: ffffffff813e8a73 R13: ffff8881f6e09e00 R14: ffff8881cf1fb1c8 R15: 1ffff11039e3f638 FS: 00007f021ac22c80(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff813e8a73 CR3: 00000001ecb39000 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 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