BUG: unable to handle page fault for address: ffffed180000001e #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: 2931 Comm: syz.2.835 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:__rb_insert_augmented+0xa9/0x720 lib/rbtree.c:459 Code: 38 ff 49 8b 07 a8 01 0f 85 53 06 00 00 4c 89 65 c8 48 89 45 d0 4c 8d 70 08 4c 89 f3 48 c1 eb 03 48 b8 00 00 00 00 00 fc ff df <80> 3c 03 00 74 08 4c 89 f7 e8 c9 28 38 ff 4d 8b 26 4d 39 fc 74 34 RSP: 0018:ffffc9000111f8c0 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 1ffff1180000001e RCX: dffffc0000000000 RDX: ffffffff819c9dc0 RSI: ffff8881092f0ef8 RDI: ffff888126435d10 RBP: ffffc9000111f920 R08: ffff888126435d27 R09: ffff888126435d18 R10: dffffc0000000000 R11: ffffed1024c86ba5 R12: ffff888125ce12a8 R13: 1ffff11023cdb57d R14: ffff88c0000000f0 R15: ffff88811e6dabe8 FS: 00007f3eb9c2d6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001e CR3: 0000000124458000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: rb_insert_augmented include/linux/rbtree_augmented.h:50 [inline] vma_interval_tree_insert_after+0x2a1/0x2b0 mm/interval_tree.c:57 dup_mmap kernel/fork.c:632 [inline] dup_mm kernel/fork.c:1522 [inline] copy_mm+0xb2d/0x13c0 kernel/fork.c:1574 copy_process+0x117c/0x3250 kernel/fork.c:2348 kernel_clone+0x233/0x960 kernel/fork.c:2737 __do_sys_clone kernel/fork.c:2863 [inline] __se_sys_clone kernel/fork.c:2847 [inline] __x64_sys_clone+0x198/0x210 kernel/fork.c:2847 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: 0033:0x7f3ebb1f1eb9 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:00007f3eb9c2cfd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f3ebb46d090 RCX: 00007f3ebb1f1eb9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000640c7000 RBP: 00007f3ebb25fc1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 00007f3ebb46d128 R14: 00007f3ebb46d090 R15: 00007ffd86a49c68 Modules linked in: CR2: ffffed180000001e ---[ end trace 631fdd94a07aaa12 ]--- RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:__rb_insert_augmented+0xa9/0x720 lib/rbtree.c:459 Code: 38 ff 49 8b 07 a8 01 0f 85 53 06 00 00 4c 89 65 c8 48 89 45 d0 4c 8d 70 08 4c 89 f3 48 c1 eb 03 48 b8 00 00 00 00 00 fc ff df <80> 3c 03 00 74 08 4c 89 f7 e8 c9 28 38 ff 4d 8b 26 4d 39 fc 74 34 RSP: 0018:ffffc9000111f8c0 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 1ffff1180000001e RCX: dffffc0000000000 RDX: ffffffff819c9dc0 RSI: ffff8881092f0ef8 RDI: ffff888126435d10 RBP: ffffc9000111f920 R08: ffff888126435d27 R09: ffff888126435d18 R10: dffffc0000000000 R11: ffffed1024c86ba5 R12: ffff888125ce12a8 R13: 1ffff11023cdb57d R14: ffff88c0000000f0 R15: ffff88811e6dabe8 FS: 00007f3eb9c2d6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001e CR3: 0000000124458000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 38 ff cmp %bh,%bh 2: 49 8b 07 mov (%r15),%rax 5: a8 01 test $0x1,%al 7: 0f 85 53 06 00 00 jne 0x660 d: 4c 89 65 c8 mov %r12,-0x38(%rbp) 11: 48 89 45 d0 mov %rax,-0x30(%rbp) 15: 4c 8d 70 08 lea 0x8(%rax),%r14 19: 4c 89 f3 mov %r14,%rbx 1c: 48 c1 eb 03 shr $0x3,%rbx 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 80 3c 03 00 cmpb $0x0,(%rbx,%rax,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 f7 mov %r14,%rdi 33: e8 c9 28 38 ff call 0xff382901 38: 4d 8b 26 mov (%r14),%r12 3b: 4d 39 fc cmp %r15,%r12 3e: 74 34 je 0x74