general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 426 Comm: syz-executor180 Not tainted 5.15.72-syzkaller-04310-g43eb03f7ce81 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:__rb_insert_augmented+0x9b/0x670 lib/rbtree.c:459 Code: e8 7a e3 2c ff 4d 8b 27 41 f6 c4 01 0f 85 b5 05 00 00 48 89 5d a8 4c 89 75 b8 4c 89 7d d0 4d 8d 7c 24 08 4d 89 fe 49 c1 ee 03 <43> 80 3c 2e 00 74 08 4c 89 ff e8 46 e3 2c ff 49 8b 1f 48 3b 5d d0 RSP: 0018:ffffc9000041f8a0 EFLAGS: 00010202 RAX: 1ffff110242ed27a RBX: 1ffff1103ffff110 RCX: dffffc0000000000 RDX: ffffffff81a6fa00 RSI: ffff888109d6b208 RDI: ffff8881217693d0 RBP: ffffc9000041f908 R08: dffffc0000000000 R09: ffff8881217693d8 R10: ffffed10242ed27d R11: 1ffff110242ed27b R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000008 FS: 0000555556faf400(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f46124a7054 CR3: 000000011eb04000 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+0x2cd/0x2e0 mm/interval_tree.c:57 dup_mmap+0x8bd/0xea0 kernel/fork.c:621 dup_mm+0x91/0x330 kernel/fork.c:1502 copy_mm+0x108/0x1b0 kernel/fork.c:1554 copy_process+0x1295/0x3250 kernel/fork.c:2245 kernel_clone+0x22d/0x990 kernel/fork.c:2646 __do_sys_clone kernel/fork.c:2772 [inline] __se_sys_clone kernel/fork.c:2756 [inline] __x64_sys_clone+0x289/0x310 kernel/fork.c:2756 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f46124220db Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00 RSP: 002b:00007ffc89a9e5d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 000000000000b4cd RCX: 00007f46124220db RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556faf400 R10: 0000555556faf6d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc89a9e670 R14: 0000000000000009 R15: 00007ffc89a9e650 Modules linked in: ---[ end trace 26ebcfb74e49be0e ]--- RIP: 0010:__rb_insert lib/rbtree.c:115 [inline] RIP: 0010:__rb_insert_augmented+0x9b/0x670 lib/rbtree.c:459 Code: e8 7a e3 2c ff 4d 8b 27 41 f6 c4 01 0f 85 b5 05 00 00 48 89 5d a8 4c 89 75 b8 4c 89 7d d0 4d 8d 7c 24 08 4d 89 fe 49 c1 ee 03 <43> 80 3c 2e 00 74 08 4c 89 ff e8 46 e3 2c ff 49 8b 1f 48 3b 5d d0 RSP: 0018:ffffc9000041f8a0 EFLAGS: 00010202 RAX: 1ffff110242ed27a RBX: 1ffff1103ffff110 RCX: dffffc0000000000 RDX: ffffffff81a6fa00 RSI: ffff888109d6b208 RDI: ffff8881217693d0 RBP: ffffc9000041f908 R08: dffffc0000000000 R09: ffff8881217693d8 R10: ffffed10242ed27d R11: 1ffff110242ed27b R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000008 FS: 0000555556faf400(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f46124a7054 CR3: 000000011eb04000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 7a e3 2c ff callq 0xff2ce37f 5: 4d 8b 27 mov (%r15),%r12 8: 41 f6 c4 01 test $0x1,%r12b c: 0f 85 b5 05 00 00 jne 0x5c7 12: 48 89 5d a8 mov %rbx,-0x58(%rbp) 16: 4c 89 75 b8 mov %r14,-0x48(%rbp) 1a: 4c 89 7d d0 mov %r15,-0x30(%rbp) 1e: 4d 8d 7c 24 08 lea 0x8(%r12),%r15 23: 4d 89 fe mov %r15,%r14 26: 49 c1 ee 03 shr $0x3,%r14 * 2a: 43 80 3c 2e 00 cmpb $0x0,(%r14,%r13,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ff mov %r15,%rdi 34: e8 46 e3 2c ff callq 0xff2ce37f 39: 49 8b 1f mov (%r15),%rbx 3c: 48 3b 5d d0 cmp -0x30(%rbp),%rbx