Code: 4f 01 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6e 5b 5d c3 0f 1f 00 48 c7 c0 e8 ff ff ff 64 RSP: 002b:00007fcd4654bd08 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcd4559f882 RDX: 0000000000000000 RSI: 0000000008000000 RDI: 0000000000000000 RBP: 0000000000000022 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000000022 R11: 0000000000000246 R12: 0000000004000000 R13: 0000000000001000 R14: 0000000000000022 R15: 00007fcd456352a0 ------------[ cut here ]------------ kernel BUG at mm/mmap.c:2855! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 351 Comm: syz.1.12 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026 RIP: 0010:__mmap_region mm/mmap.c:2855 [inline] RIP: 0010:mmap_region+0x1fe8/0x2130 mm/mmap.c:3031 Code: 50 80 e1 07 80 c1 03 38 c1 0f 8c e1 f9 ff ff 48 8b 7c 24 50 e8 b9 4c 09 00 e9 d2 f9 ff ff e8 ff ad c3 ff 0f 0b e8 f8 ad c3 ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 66 e7 ff ff 48 89 df e8 RSP: 0018:ffffc9000f53fa40 EFLAGS: 00010246 RAX: ffffffff81adc428 RBX: 00007fcd43ff8000 RCX: 0000000000080000 RDX: ffffc90001209000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc9000f53fc30 R08: ffff888113ac0000 R09: 0000000000000003 R10: 0000000000000003 R11: 0000000000000002 R12: 00007fcd43ff7fff R13: 00007fcd43ff8000 R14: dffffc0000000000 R15: 00007fcd3bff8000 FS: 00007fcd4654d6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1884b8bdb8 CR3: 0000000132b33000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_mmap+0x858/0xdd0 mm/mmap.c:1492 vm_mmap_pgoff+0x206/0x3f0 mm/util.c:525 ksys_mmap_pgoff+0xf6/0x1d0 mm/mmap.c:1538 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:93 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline] __x64_sys_mmap+0xfa/0x110 arch/x86/kernel/sys_x86_64.c:86 x64_sys_call+0x8fd/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:10 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fcd4559f882 Code: 4f 01 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 6e 5b 5d c3 0f 1f 00 48 c7 c0 e8 ff ff ff 64 RSP: 002b:00007fcd4654bd08 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcd4559f882 RDX: 0000000000000000 RSI: 0000000008000000 RDI: 0000000000000000 RBP: 0000000000000022 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000000022 R11: 0000000000000246 R12: 0000000004000000 R13: 0000000000001000 R14: 0000000000000022 R15: 00007fcd456352a0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__mmap_region mm/mmap.c:2855 [inline] RIP: 0010:mmap_region+0x1fe8/0x2130 mm/mmap.c:3031 Code: 50 80 e1 07 80 c1 03 38 c1 0f 8c e1 f9 ff ff 48 8b 7c 24 50 e8 b9 4c 09 00 e9 d2 f9 ff ff e8 ff ad c3 ff 0f 0b e8 f8 ad c3 ff <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 66 e7 ff ff 48 89 df e8 RSP: 0018:ffffc9000f53fa40 EFLAGS: 00010246 RAX: ffffffff81adc428 RBX: 00007fcd43ff8000 RCX: 0000000000080000 RDX: ffffc90001209000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc9000f53fc30 R08: ffff888113ac0000 R09: 0000000000000003 R10: 0000000000000003 R11: 0000000000000002 R12: 00007fcd43ff7fff R13: 00007fcd43ff8000 R14: dffffc0000000000 R15: 00007fcd3bff8000 FS: 00007fcd4654d6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ef14ff8 CR3: 0000000132b33000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 4f 01 00 rex.WRXB add %r8,(%r8) 3: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 8: 41 f7 c1 ff 0f 00 00 test $0xfff,%r9d f: 75 27 jne 0x38 11: 55 push %rbp 12: 89 cd mov %ecx,%ebp 14: 53 push %rbx 15: 48 89 fb mov %rdi,%rbx 18: 48 85 ff test %rdi,%rdi 1b: 74 3b je 0x58 1d: 41 89 ea mov %ebp,%r10d 20: 48 89 df mov %rbx,%rdi 23: b8 09 00 00 00 mov $0x9,%eax 28: 0f 05 syscall * 2a: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 6e ja 0xa0 32: 5b pop %rbx 33: 5d pop %rbp 34: c3 ret 35: 0f 1f 00 nopl (%rax) 38: 48 c7 c0 e8 ff ff ff mov $0xffffffffffffffe8,%rax 3f: 64 fs