BUG: unable to handle page fault for address: ffffed180000000d #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: 1 PID: 375 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 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 b0 37 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 dc 36 38 ff 4d 39 34 24 0f 84 RSP: 0018:ffffc900017a78f8 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff88c000000058 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffff8881205eeac0 RDI: ffff88810d6df098 RBP: ffffc900017a7948 R08: ffff8881205eead7 R09: ffff8881205eeac8 R10: dffffc0000000000 R11: ffffed10240bdd5b R12: ffff88c000000068 R13: 1ffff1180000000d R14: ffff88810dcb0d10 R15: ffff8881205eeac0 FS: 0000555583ee3500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000000d CR3: 000000012fb19000 CR4: 00000000003506a0 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+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: 0033:0x7f26030188d2 Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 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 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffd3a758110 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd3a758110 RCX: 00007f26030188d2 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffd3a75829c R08: 0000000000000000 R09: 0000000000000001 R10: 0000555583ee37d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 00000000000090cc R15: 00007ffd3a7582f0 Modules linked in: CR2: ffffed180000000d ---[ end trace 18e6c21891dfca13 ]--- 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 b0 37 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 dc 36 38 ff 4d 39 34 24 0f 84 RSP: 0018:ffffc900017a78f8 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff88c000000058 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffff8881205eeac0 RDI: ffff88810d6df098 RBP: ffffc900017a7948 R08: ffff8881205eead7 R09: ffff8881205eeac8 R10: dffffc0000000000 R11: ffffed10240bdd5b R12: ffff88c000000068 R13: 1ffff1180000000d R14: ffff88810dcb0d10 R15: ffff8881205eeac0 FS: 0000555583ee3500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000000d CR3: 000000012fb19000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: ff ljmp (bad) 1: e8 b0 37 38 ff call 0xff3837b6 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 dc 36 38 ff call 0xff383716 3a: 4d 39 34 24 cmp %r14,(%r12) 3e: 0f .byte 0xf 3f: 84 .byte 0x84