BUG: unable to handle page fault for address: ffffed1800000017 #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: 3113 Comm: syz.3.948 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 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:180 [inline] RIP: 0010:__rb_insert_augmented+0x3a4/0x6f0 lib/rbtree.c:459 Code: ff e8 40 2e 38 ff 4d 89 27 4d 89 3e 48 85 db 0f 84 8d 02 00 00 4c 8d 63 10 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 6c 2d 38 ff 4d 39 34 24 0f 84 RSP: 0018:ffffc90000c378f8 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff88c0000000a8 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffff88812b1ed998 RDI: ffff88811f119e78 RBP: ffffc90000c37948 R08: ffff88811d3ade4f R09: ffff88811d3ade40 R10: dffffc0000000000 R11: ffffed1023a75bca R12: ffff88c0000000b8 R13: 1ffff11800000017 R14: ffff88811e8b7e38 R15: ffff88812b1ed998 FS: 00007fa79cc256c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1800000017 CR3: 0000000112dc4000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 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+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: 0033:0x7fa79e1ed0d9 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:00007fa79cc24fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fa79e475090 RCX: 00007fa79e1ed0d9 RDX: 0000200000002b40 RSI: 0000200000002b10 RDI: 0000000001000400 RBP: 00007fa79e284024 R08: 0000200000002bc0 R09: 0000200000002bc0 R10: 0000200000002b80 R11: 0000000000000206 R12: 0000000000000000 R13: 00007fa79e475128 R14: 00007fa79e475090 R15: 00007fff2ad5d368 Modules linked in: CR2: ffffed1800000017 ---[ end trace a2b342cb5ecda8b1 ]--- 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:180 [inline] RIP: 0010:__rb_insert_augmented+0x3a4/0x6f0 lib/rbtree.c:459 Code: ff e8 40 2e 38 ff 4d 89 27 4d 89 3e 48 85 db 0f 84 8d 02 00 00 4c 8d 63 10 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 6c 2d 38 ff 4d 39 34 24 0f 84 RSP: 0018:ffffc90000c378f8 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff88c0000000a8 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffff88812b1ed998 RDI: ffff88811f119e78 RBP: ffffc90000c37948 R08: ffff88811d3ade4f R09: ffff88811d3ade40 R10: dffffc0000000000 R11: ffffed1023a75bca R12: ffff88c0000000b8 R13: 1ffff11800000017 R14: ffff88811e8b7e38 R15: ffff88812b1ed998 FS: 00007fa79cc256c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1800000017 CR3: 0000000112dc4000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: ff ljmp (bad) 1: e8 40 2e 38 ff call 0xff382e46 6: 4d 89 27 mov %r12,(%r15) 9: 4d 89 3e mov %r15,(%r14) c: 48 85 db test %rbx,%rbx f: 0f 84 8d 02 00 00 je 0x2a2 15: 4c 8d 63 10 lea 0x10(%rbx),%r12 19: 4d 89 e5 mov %r12,%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 e7 mov %r12,%rdi 35: e8 6c 2d 38 ff call 0xff382da6 3a: 4d 39 34 24 cmp %r14,(%r12) 3e: 0f .byte 0xf 3f: 84 .byte 0x84