RAX: ffffffffffffffda RBX: 00007fdbbe03df80 RCX: 00007fdbbdf1e959 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000060000200 RBP: 00007fdbbdaa1120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000002 R13: 000000000000000b R14: 00007fdbbe03df80 R15: 00007ffca8cffe28 general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 373 Comm: syz-executor.0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__rb_insert lib/rbtree.c:117 [inline] RIP: 0010:__rb_insert_augmented+0xd9/0x720 lib/rbtree.c:459 Code: 4c 89 f7 e8 49 9d 3a ff 4d 8b 26 4d 39 fc 74 34 4d 85 e4 0f 84 fc 00 00 00 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 19 9d 3a ff 41 f6 04 24 01 74 63 e9 RSP: 0018:ffffc90000ebf8c0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff11021a9310e RCX: dffffc0000000000 RDX: ffffffff819b06e0 RSI: ffff88810d087250 RDI: ffff88810d7b84f8 RBP: ffffc90000ebf920 R08: dffffc0000000000 R09: ffff88810d7b8500 R10: ffffed1021af70a2 R11: 1ffff11021af70a0 R12: 0000000000000001 R13: 1ffff11021a93158 R14: ffff88810d498870 R15: ffff88810d498ac0 FS: 00007fdbbdaa16c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffca8d00038 CR3: 000000010f212000 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+0x2a1/0x2b0 mm/interval_tree.c:57 dup_mmap kernel/fork.c:632 [inline] dup_mm kernel/fork.c:1522 [inline] copy_mm+0xb20/0x13a0 kernel/fork.c:1574 copy_process+0x115c/0x3210 kernel/fork.c:2348 kernel_clone+0x23f/0x940 kernel/fork.c:2737 __do_sys_clone kernel/fork.c:2863 [inline] __se_sys_clone kernel/fork.c:2847 [inline] __x64_sys_clone+0x176/0x1d0 kernel/fork.c:2847 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: 0033:0x7fdbbdf1e959 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:00007fdbbdaa1078 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fdbbe03df80 RCX: 00007fdbbdf1e959 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000060000200 RBP: 00007fdbbdaa1120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000002 R13: 000000000000000b R14: 00007fdbbe03df80 R15: 00007ffca8cffe28 Modules linked in: ---[ end trace 0ef39aa73ae49c34 ]--- RIP: 0010:__rb_insert lib/rbtree.c:117 [inline] RIP: 0010:__rb_insert_augmented+0xd9/0x720 lib/rbtree.c:459 Code: 4c 89 f7 e8 49 9d 3a ff 4d 8b 26 4d 39 fc 74 34 4d 85 e4 0f 84 fc 00 00 00 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 19 9d 3a ff 41 f6 04 24 01 74 63 e9 RSP: 0018:ffffc90000ebf8c0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff11021a9310e RCX: dffffc0000000000 RDX: ffffffff819b06e0 RSI: ffff88810d087250 RDI: ffff88810d7b84f8 RBP: ffffc90000ebf920 R08: dffffc0000000000 R09: ffff88810d7b8500 R10: ffffed1021af70a2 R11: 1ffff11021af70a0 R12: 0000000000000001 R13: 1ffff11021a93158 R14: ffff88810d498870 R15: ffff88810d498ac0 FS: 00007fdbbdaa16c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558ebd9430 CR3: 000000010f212000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 4c 89 f7 mov %r14,%rdi 3: e8 49 9d 3a ff call 0xff3a9d51 8: 4d 8b 26 mov (%r14),%r12 b: 4d 39 fc cmp %r15,%r12 e: 74 34 je 0x44 10: 4d 85 e4 test %r12,%r12 13: 0f 84 fc 00 00 00 je 0x115 19: 4c 89 e0 mov %r12,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 e7 mov %r12,%rdi 33: e8 19 9d 3a ff call 0xff3a9d51 38: 41 f6 04 24 01 testb $0x1,(%r12) 3d: 74 63 je 0xa2 3f: e9 .byte 0xe9