general protection fault, probably for non-canonical address 0xdffffc1800000000: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x000000c000000000-0x000000c000000007] CPU: 0 PID: 333 Comm: syz-executor.0 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 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 0f b3 3a ff 49 8b 07 a8 01 0f RSP: 0018:ffffc90000a678c0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff888120151749 RCX: dffffc0000000000 RDX: ffffffff819aff10 RSI: ffff8881099314d0 RDI: ffff88810d38b998 RBP: ffffc90000a67920 R08: dffffc0000000000 R09: ffff88810d38b9a0 R10: ffffed1021a71736 R11: 1ffff11021a71734 R12: ffff888120151748 R13: 0000001800000000 R14: ffff888120151748 R15: 000000c000000000 FS: 00005555767ad480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1a75bee6be CR3: 000000012014d000 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: 0033:0x7f1a74fa2b13 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:00007ffca6d9cc98 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1a74fa2b13 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00005555767ad750 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 Modules linked in: ---[ end trace 537b8dcf62c1d463 ]--- 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 0f b3 3a ff 49 8b 07 a8 01 0f RSP: 0018:ffffc90000a678c0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff888120151749 RCX: dffffc0000000000 RDX: ffffffff819aff10 RSI: ffff8881099314d0 RDI: ffff88810d38b998 RBP: ffffc90000a67920 R08: dffffc0000000000 R09: ffff88810d38b9a0 R10: ffffed1021a71736 R11: 1ffff11021a71734 R12: ffff888120151748 R13: 0000001800000000 R14: ffff888120151748 R15: 000000c000000000 FS: 00005555767ad480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1a75bee6be CR3: 000000012014d000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- 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 0f b3 3a ff call 0xff3ab349 3a: 49 8b 07 mov (%r15),%rax 3d: a8 01 test $0x1,%al 3f: 0f .byte 0xf