BUG: unable to handle page fault for address: ffffed180000000a #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23fff2067 P4D 23fff2067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2633 Comm: syz.3.746 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:__rb_insert_augmented+0xa5/0x6f0 lib/rbtree.c:459 Code: a1 30 38 ff 4d 8b 37 41 f6 c6 01 0f 85 20 06 00 00 4c 89 65 c8 4d 8d 66 08 4d 89 e5 49 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <41> 80 7c 05 00 00 74 08 4c 89 e7 e8 6b 30 38 ff 4d 8b 24 24 4d 39 RSP: 0018:ffffc9000138f8f8 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 1ffff11023e6dbc7 RCX: dffffc0000000000 RDX: ffffffff819cca20 RSI: ffff8881099466a0 RDI: ffff88811344a3d0 RBP: ffffc9000138f948 R08: ffff88811344a3e7 R09: ffff88811344a3d8 R10: dffffc0000000000 R11: ffffed102268947d R12: ffff88c000000050 R13: 1ffff1180000000a R14: ffff88c000000048 R15: ffff88811f36de38 FS: 00007f630521e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000000a CR3: 000000011cf43000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602 Call Trace: rb_insert_augmented include/linux/rbtree_augmented.h:50 [inline] vma_interval_tree_insert_after+0x2a6/0x2c0 mm/interval_tree.c:57 dup_mmap kernel/fork.c:635 [inline] dup_mm kernel/fork.c:1527 [inline] copy_mm+0xb34/0x13a0 kernel/fork.c:1579 copy_process+0x1184/0x3280 kernel/fork.c:2353 kernel_clone+0x233/0x960 kernel/fork.c:2742 __do_sys_clone kernel/fork.c:2868 [inline] __se_sys_clone kernel/fork.c:2852 [inline] __x64_sys_clone+0x198/0x210 kernel/fork.c:2852 x64_sys_call+0x41f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f63067c50d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f630521dfd8 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f6306a4cfa0 RCX: 00007f63067c50d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000c0126080 RBP: 00007f630685c024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 00007f6306a4d038 R14: 00007f6306a4cfa0 R15: 00007fff0a04da48 Modules linked in: CR2: ffffed180000000a ---[ end trace c248a09dbbde4c12 ]--- RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:__rb_insert_augmented+0xa5/0x6f0 lib/rbtree.c:459 Code: a1 30 38 ff 4d 8b 37 41 f6 c6 01 0f 85 20 06 00 00 4c 89 65 c8 4d 8d 66 08 4d 89 e5 49 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <41> 80 7c 05 00 00 74 08 4c 89 e7 e8 6b 30 38 ff 4d 8b 24 24 4d 39 RSP: 0018:ffffc9000138f8f8 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 1ffff11023e6dbc7 RCX: dffffc0000000000 RDX: ffffffff819cca20 RSI: ffff8881099466a0 RDI: ffff88811344a3d0 RBP: ffffc9000138f948 R08: ffff88811344a3e7 R09: ffff88811344a3d8 R10: dffffc0000000000 R11: ffffed102268947d R12: ffff88c000000050 R13: 1ffff1180000000a R14: ffff88c000000048 R15: ffff88811f36de38 FS: 00007f630521e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000000a CR3: 000000011cf43000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 38 ff cmp %bh,%bh 2: 4d 8b 37 mov (%r15),%r14 5: 41 f6 c6 01 test $0x1,%r14b 9: 0f 85 20 06 00 00 jne 0x62f f: 4c 89 65 c8 mov %r12,-0x38(%rbp) 13: 4d 8d 66 08 lea 0x8(%r14),%r12 17: 4d 89 e5 mov %r12,%r13 1a: 49 c1 ed 03 shr $0x3,%r13 1e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 25: fc ff df * 28: 41 80 7c 05 00 00 cmpb $0x0,0x0(%r13,%rax,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 e7 mov %r12,%rdi 33: e8 6b 30 38 ff call 0xff3830a3 38: 4d 8b 24 24 mov (%r12),%r12 3c: 4d rex.WRB 3d: 39 .byte 0x39