BUG: unable to handle page fault for address: ffffed180000001a #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: 25886 Comm: syz-executor.1 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:__rb_change_child include/linux/rbtree_augmented.h:173 [inline] RIP: 0010:__rb_rotate_set_parents lib/rbtree.c:81 [inline] RIP: 0010:__rb_insert lib/rbtree.c:215 [inline] RIP: 0010:__rb_insert_augmented+0x599/0x610 lib/rbtree.c:459 Code: 49 89 5d 00 48 83 e3 fc 43 80 3c 26 00 74 08 4c 89 ff e8 ea 06 2b ff 4d 89 2f 48 85 db 74 2a 4c 8d 73 10 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 28 06 2b ff 48 8d 43 08 4c 39 7b RSP: 0018:ffffc9000233f8f8 EFLAGS: 00010a02 RAX: 1ffff1180000001a RBX: ffff88c0000000c0 RCX: ffff888134e73d10 RDX: ffffffff81a50880 RSI: ffff888109345af0 RDI: ffff8881455a7870 RBP: ffffc9000233f960 R08: dffffc0000000000 R09: ffff8881455a7878 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888168f5c620 R14: ffff88c0000000d0 R15: ffff88810e065e38 FS: 00007f9683ba96c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001a CR3: 000000010ac87000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rb_insert_augmented include/linux/rbtree_augmented.h:50 [inline] vma_interval_tree_insert_after+0x2be/0x2d0 mm/interval_tree.c:57 dup_mmap kernel/fork.c:631 [inline] dup_mm kernel/fork.c:1521 [inline] copy_mm+0xba2/0x13e0 kernel/fork.c:1573 copy_process+0x1149/0x3290 kernel/fork.c:2264 kernel_clone+0x21e/0x9e0 kernel/fork.c:2662 __do_sys_clone kernel/fork.c:2788 [inline] __se_sys_clone kernel/fork.c:2772 [inline] __x64_sys_clone+0x23f/0x290 kernel/fork.c:2772 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f9684e8ada9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9683ba9078 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f9684fb91f0 RCX: 00007f9684e8ada9 RDX: 0000000020000340 RSI: 0000000000000000 RDI: 00000000090a9400 RBP: 00007f9684ed747a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000580 R11: 0000000000000206 R12: 0000000000000000 R13: 000000000000006e R14: 00007f9684fb91f0 R15: 00007ffd8c863758 Modules linked in: CR2: ffffed180000001a ---[ end trace df0f6255c8c019c7 ]--- RIP: 0010:__rb_change_child include/linux/rbtree_augmented.h:173 [inline] RIP: 0010:__rb_rotate_set_parents lib/rbtree.c:81 [inline] RIP: 0010:__rb_insert lib/rbtree.c:215 [inline] RIP: 0010:__rb_insert_augmented+0x599/0x610 lib/rbtree.c:459 Code: 49 89 5d 00 48 83 e3 fc 43 80 3c 26 00 74 08 4c 89 ff e8 ea 06 2b ff 4d 89 2f 48 85 db 74 2a 4c 8d 73 10 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 28 06 2b ff 48 8d 43 08 4c 39 7b RSP: 0018:ffffc9000233f8f8 EFLAGS: 00010a02 RAX: 1ffff1180000001a RBX: ffff88c0000000c0 RCX: ffff888134e73d10 RDX: ffffffff81a50880 RSI: ffff888109345af0 RDI: ffff8881455a7870 RBP: ffffc9000233f960 R08: dffffc0000000000 R09: ffff8881455a7878 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888168f5c620 R14: ffff88c0000000d0 R15: ffff88810e065e38 FS: 00007f9683ba96c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001a CR3: 000000010ac87000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 49 89 5d 00 mov %rbx,0x0(%r13) 4: 48 83 e3 fc and $0xfffffffffffffffc,%rbx 8: 43 80 3c 26 00 cmpb $0x0,(%r14,%r12,1) d: 74 08 je 0x17 f: 4c 89 ff mov %r15,%rdi 12: e8 ea 06 2b ff call 0xff2b0701 17: 4d 89 2f mov %r13,(%r15) 1a: 48 85 db test %rbx,%rbx 1d: 74 2a je 0x49 1f: 4c 8d 73 10 lea 0x10(%rbx),%r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 f7 mov %r14,%rdi 34: e8 28 06 2b ff call 0xff2b0661 39: 48 8d 43 08 lea 0x8(%rbx),%rax 3d: 4c rex.WR 3e: 39 .byte 0x39 3f: 7b .byte 0x7b