BUG: unable to handle page fault for address: ffffed180000001f #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: 6416 Comm: syz-executor 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:110 [inline] RIP: 0010:__rb_insert_augmented+0x71/0x720 lib/rbtree.c:459 Code: 48 89 5d a8 eb 13 4d 8b 3e 4d 89 f4 49 83 e7 fc 4d 89 3e 0f 84 91 06 00 00 4d 89 fd 49 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <41> 80 7c 05 00 00 74 08 4c 89 ff e8 5f 03 3b ff 49 8b 07 a8 01 0f RSP: 0018:ffffc900009f78c0 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff8881260fa749 RCX: dffffc0000000000 RDX: ffffffff819addd0 RSI: ffff8881098dc390 RDI: ffff8881143a94f8 RBP: ffffc900009f7920 R08: dffffc0000000000 R09: ffff8881143a9500 R10: ffffed10228752a2 R11: 1ffff110228752a0 R12: ffff8881260fa748 R13: 1ffff1180000001f R14: ffff8881260fa748 R15: ffff88c0000000f8 FS: 000055555b337500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001f CR3: 0000000113278000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000050602 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: 0033:0x7fe8b5abd1d3 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffdb3446cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe8b5abd1d3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 000055555b3377d0 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000 Modules linked in: CR2: ffffed180000001f ---[ end trace 13b2e52cafffd231 ]--- RIP: 0010:__rb_insert lib/rbtree.c:110 [inline] RIP: 0010:__rb_insert_augmented+0x71/0x720 lib/rbtree.c:459 Code: 48 89 5d a8 eb 13 4d 8b 3e 4d 89 f4 49 83 e7 fc 4d 89 3e 0f 84 91 06 00 00 4d 89 fd 49 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <41> 80 7c 05 00 00 74 08 4c 89 ff e8 5f 03 3b ff 49 8b 07 a8 01 0f RSP: 0018:ffffc900009f78c0 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff8881260fa749 RCX: dffffc0000000000 RDX: ffffffff819addd0 RSI: ffff8881098dc390 RDI: ffff8881143a94f8 RBP: ffffc900009f7920 R08: dffffc0000000000 R09: ffff8881143a9500 R10: ffffed10228752a2 R11: 1ffff110228752a0 R12: ffff8881260fa748 R13: 1ffff1180000001f R14: ffff8881260fa748 R15: ffff88c0000000f8 FS: 000055555b337500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001f CR3: 0000000113278000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000050602 ---------------- Code disassembly (best guess): 0: 48 89 5d a8 mov %rbx,-0x58(%rbp) 4: eb 13 jmp 0x19 6: 4d 8b 3e mov (%r14),%r15 9: 4d 89 f4 mov %r14,%r12 c: 49 83 e7 fc and $0xfffffffffffffffc,%r15 10: 4d 89 3e mov %r15,(%r14) 13: 0f 84 91 06 00 00 je 0x6aa 19: 4d 89 fd mov %r15,%r13 1c: 49 c1 ed 03 shr $0x3,%r13 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 41 80 7c 05 00 00 cmpb $0x0,0x0(%r13,%rax,1) <-- trapping instruction 30: 74 08 je 0x3a 32: 4c 89 ff mov %r15,%rdi 35: e8 5f 03 3b ff call 0xff3b0399 3a: 49 8b 07 mov (%r15),%rax 3d: a8 01 test $0x1,%al 3f: 0f .byte 0xf