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: 5654 Comm: syz.6.1524 Tainted: G W 5.15.180-syzkaller-00024-g88c4075c39ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:__rb_insert_augmented+0xa9/0x720 lib/rbtree.c:459 Code: 3b 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 29 03 3b ff 4d 8b 26 4d 39 fc 74 34 RSP: 0018:ffffc90000b178c0 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 1ffff1180000000a RCX: dffffc0000000000 RDX: ffffffff819addd0 RSI: ffff88810933f828 RDI: ffff888118cb4620 RBP: ffffc90000b17920 R08: dffffc0000000000 R09: ffff888118cb4628 R10: ffffed10231968c7 R11: 1ffff110231968c5 R12: ffff88812665ae38 R13: 1ffff1102347817d R14: ffff88c000000050 R15: ffff88811a3c0be8 FS: 00007f0fdd6cd6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000000a CR3: 00000001123da000 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+0xb1a/0x1390 kernel/fork.c:1574 copy_process+0x1159/0x3250 kernel/fork.c:2263 kernel_clone+0x23f/0x940 kernel/fork.c:2661 __do_sys_clone kernel/fork.c:2787 [inline] __se_sys_clone kernel/fork.c:2771 [inline] __x64_sys_clone+0x176/0x1d0 kernel/fork.c:2771 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: 0033:0x7f0fdf0a6969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0fdd6ccfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f0fdf2ce160 RCX: 00007f0fdf0a6969 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000e50c1600 RBP: 00007f0fdf128ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0fdf2ce160 R15: 00007ffe39c60788 Modules linked in: CR2: ffffed180000000a ---[ end trace 4784b597aa1c3b42 ]--- RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:__rb_insert_augmented+0xa9/0x720 lib/rbtree.c:459 Code: 3b 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 29 03 3b ff 4d 8b 26 4d 39 fc 74 34 RSP: 0018:ffffc90000b178c0 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 1ffff1180000000a RCX: dffffc0000000000 RDX: ffffffff819addd0 RSI: ffff88810933f828 RDI: ffff888118cb4620 RBP: ffffc90000b17920 R08: dffffc0000000000 R09: ffff888118cb4628 R10: ffffed10231968c7 R11: 1ffff110231968c5 R12: ffff88812665ae38 R13: 1ffff1102347817d R14: ffff88c000000050 R15: ffff88811a3c0be8 FS: 00007f0fdd6cd6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000000a CR3: 00000001123da000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 3b ff cmp %edi,%edi 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 29 03 3b ff call 0xff3b0361 38: 4d 8b 26 mov (%r14),%r12 3b: 4d 39 fc cmp %r15,%r12 3e: 74 34 je 0x74