general protection fault in __rb_insert

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	general protection fault in __rb_insert_augmented				1	1457d	1457d	0/1	auto-closed as invalid on 2020/09/05 11:42
general protection fault, probably for non-canonical address 0xdffffc0002c3fefa: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x00000000161ff7d0-0x00000000161ff7d7]
CPU: 1 PID: 6611 Comm: syz-executor.0 Not tainted 5.9.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__rb_insert lib/rbtree.c:117 [inline]
RIP: 0010:__rb_insert_augmented+0x99/0x8b0 lib/rbtree.c:459
Code: c2 48 c1 ea 03 42 80 3c 2a 00 0f 85 58 05 00 00 4d 8b 74 24 08 49 39 ee 0f 84 76 01 00 00 4d 85 f6 74 1c 4c 89 f2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 64 05 00 00 41 f6 06 01 0f 84 7d 04 00 00 4c
RSP: 0018:ffffc900197c7990 EFLAGS: 00010206
RAX: ffff8880871db648 RBX: ffff88809e323f08 RCX: 1ffff1100275ae4d
RDX: 0000000002c3fefa RSI: ffff8880871db648 RDI: ffff888013ad7268
RBP: ffff88809f340058 R08: ffff8880001088e0 R09: ffff8880871db667
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880001088d8
R13: dffffc0000000000 R14: 00000000161ff7d0 R15: ffffffff81a1fcc0
FS:  00007f2d5064e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3022b000 CR3: 0000000203e42000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 dup_mmap kernel/fork.c:564 [inline]
 dup_mm+0x70b/0x1300 kernel/fork.c:1354
 copy_mm kernel/fork.c:1410 [inline]
 copy_process+0x28e4/0x6920 kernel/fork.c:2069
 _do_fork+0xe8/0xb10 kernel/fork.c:2428
 __do_sys_clone3+0x1dd/0x320 kernel/fork.c:2703
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d5f9
Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2d5064dc78 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 0000000000002000 RCX: 000000000045d5f9
RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000020001680
RBP: 000000000118d158 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118d12c
R13: 000000000169fb6f R14: 00007f2d5064e9c0 R15: 000000000118d12c
Modules linked in:
---[ end trace e207d768dd5f78dc ]---
RIP: 0010:__rb_insert lib/rbtree.c:117 [inline]
RIP: 0010:__rb_insert_augmented+0x99/0x8b0 lib/rbtree.c:459
Code: c2 48 c1 ea 03 42 80 3c 2a 00 0f 85 58 05 00 00 4d 8b 74 24 08 49 39 ee 0f 84 76 01 00 00 4d 85 f6 74 1c 4c 89 f2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 64 05 00 00 41 f6 06 01 0f 84 7d 04 00 00 4c
RSP: 0018:ffffc900197c7990 EFLAGS: 00010206
RAX: ffff8880871db648 RBX: ffff88809e323f08 RCX: 1ffff1100275ae4d
RDX: 0000000002c3fefa RSI: ffff8880871db648 RDI: ffff888013ad7268
RBP: ffff88809f340058 R08: ffff8880001088e0 R09: ffff8880871db667
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880001088d8
R13: dffffc0000000000 R14: 00000000161ff7d0 R15: ffffffff81a1fcc0
FS:  00007f2d5064e700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000203e42000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400