BUG: unable to handle page fault for address: fffffffffffffff8 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD c570067 P4D c570067 PUD c572067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 17236 Comm: modprobe Not tainted 6.2.0-rc6-next-20230203-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:anon_vma_clone+0x101/0x5e0 mm/rmap.c:296 Code: d5 81 0d 00 48 85 c0 48 89 c5 0f 84 2c 02 00 00 e8 a4 e5 be ff 49 8d 7d 08 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 e0 03 00 00 <4d> 8b 65 08 4c 89 e0 48 c1 e8 03 80 3c 18 00 0f 85 d5 03 00 00 4d RSP: 0018:ffffc9000361f858 EFLAGS: 00010246 RAX: 1fffffffffffffff RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff88807e63d7c0 RSI: ffffffff81c584fc RDI: fffffffffffffff8 RBP: ffff88805cb6f5b0 R08: 00000000ffffffff R09: ffff88805cb6f5b0 R10: 0000000000000050 R11: 0000000000094001 R12: 0000000000000000 R13: fffffffffffffff0 R14: ffff88804db667e0 R15: ffffc9000361fcd0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff8 CR3: 000000005cb1f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __split_vma+0x289/0x810 mm/mmap.c:2191 do_vmi_align_munmap+0x22a/0xf60 mm/mmap.c:2302 do_vmi_munmap+0x26e/0x2c0 mm/mmap.c:2452 mmap_region+0x1ee/0x2690 mm/mmap.c:2500 do_mmap+0x831/0xf60 mm/mmap.c:1364 vm_mmap_pgoff+0x1af/0x280 mm/util.c:542 ksys_mmap_pgoff+0x41f/0x5a0 mm/mmap.c:1410 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe1fabaf1f2 Code: 04 00 00 5b 5d 41 5c c3 41 f7 c1 ff 0f 00 00 75 27 55 48 89 fd 53 89 cb 48 85 ff 74 33 41 89 da 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 56 5b 5d c3 0f 1f 00 c7 05 9e 1f 01 00 16 00 RSP: 002b:00007ffe19763cf8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007fe1fabaf1f2 RDX: 0000000000000003 RSI: 0000000000002000 RDI: 00007fe1fa86a000 RBP: 00007fe1fa86a000 R08: 0000000000000000 R09: 0000000000002000 R10: 0000000000000812 R11: 0000000000000206 R12: 00007ffe19763d10 R13: 00007ffe19763da0 R14: 0000000000000003 R15: 00007fe1fa86c000 Modules linked in: CR2: fffffffffffffff8 ---[ end trace 0000000000000000 ]--- RIP: 0010:anon_vma_clone+0x101/0x5e0 mm/rmap.c:296 Code: d5 81 0d 00 48 85 c0 48 89 c5 0f 84 2c 02 00 00 e8 a4 e5 be ff 49 8d 7d 08 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 e0 03 00 00 <4d> 8b 65 08 4c 89 e0 48 c1 e8 03 80 3c 18 00 0f 85 d5 03 00 00 4d RSP: 0018:ffffc9000361f858 EFLAGS: 00010246 RAX: 1fffffffffffffff RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff88807e63d7c0 RSI: ffffffff81c584fc RDI: fffffffffffffff8 RBP: ffff88805cb6f5b0 R08: 00000000ffffffff R09: ffff88805cb6f5b0 R10: 0000000000000050 R11: 0000000000094001 R12: 0000000000000000 R13: fffffffffffffff0 R14: ffff88804db667e0 R15: ffffc9000361fcd0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff8 CR3: 000000005cb1f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 81 0d 00 48 85 c0 48 orl $0xfc58948,-0x3f7ab800(%rip) # 0xc085480a 7: 89 c5 0f a: 84 2c 02 test %ch,(%rdx,%rax,1) d: 00 00 add %al,(%rax) f: e8 a4 e5 be ff callq 0xffbee5b8 14: 49 8d 7d 08 lea 0x8(%r13),%rdi 18: 48 89 f8 mov %rdi,%rax 1b: 48 c1 e8 03 shr $0x3,%rax 1f: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) 23: 0f 85 e0 03 00 00 jne 0x409 * 29: 4d 8b 65 08 mov 0x8(%r13),%r12 <-- trapping instruction 2d: 4c 89 e0 mov %r12,%rax 30: 48 c1 e8 03 shr $0x3,%rax 34: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) 38: 0f 85 d5 03 00 00 jne 0x413 3e: 4d rex.WRB