kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 27285 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__rb_insert lib/rbtree.c:131 [inline]
RIP: 0010:__rb_insert_augmented+0x96/0x920 lib/rbtree.c:495
Code: ea 48 c1 ea 03 42 80 3c 2a 00 0f 85 81 05 00 00 4c 8b 65 00 41 f6 c4 01 0f 85 6e 03 00 00 4d 8d 44 24 08 4c 89 c2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 71 05 00 00 4d 8b 74 24 08 49 39 ee 0f 84 76
RSP: 0018:ffff888225c47b88 EFLAGS: 00010202
RAX: ffff8880b540a320 RBX: ffff88809ca34bb0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: dffffc0000000000 RDI: ffff88809ca34bc0
RBP: ffff88800012f3b0 R08: 0000000000000008 R09: 00000000000001ff
R10: 0000000000000006 R11: 00000000d2cc1d79 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888079fc08d8 R15: ffffffff81897a50
FS:  00007f073ef9a700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a9ae3a010 CR3: 00000000792d0000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 dup_mmap kernel/fork.c:521 [inline]
 dup_mm kernel/fork.c:1285 [inline]
 copy_mm kernel/fork.c:1341 [inline]
 copy_process.part.0+0x3121/0x8260 kernel/fork.c:1913
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x22f/0xf30 kernel/fork.c:2219
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f0741a24ae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f073ef9a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039
RAX: ffffffffffffffda RBX: 00007f0741b37f60 RCX: 00007f0741a24ae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f0741a7ef25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc448ab06f R14: 00007f073ef9a300 R15: 0000000000022000
Modules linked in:
---[ end trace 8c99c4d590f35d0e ]---
RIP: 0010:__rb_insert lib/rbtree.c:131 [inline]
RIP: 0010:__rb_insert_augmented+0x96/0x920 lib/rbtree.c:495
Code: ea 48 c1 ea 03 42 80 3c 2a 00 0f 85 81 05 00 00 4c 8b 65 00 41 f6 c4 01 0f 85 6e 03 00 00 4d 8d 44 24 08 4c 89 c2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 71 05 00 00 4d 8b 74 24 08 49 39 ee 0f 84 76
RSP: 0018:ffff888225c47b88 EFLAGS: 00010202
RAX: ffff8880b540a320 RBX: ffff88809ca34bb0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: dffffc0000000000 RDI: ffff88809ca34bc0
RBP: ffff88800012f3b0 R08: 0000000000000008 R09: 00000000000001ff
R10: 0000000000000006 R11: 00000000d2cc1d79 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888079fc08d8 R15: ffffffff81897a50
FS:  00007f073ef9a700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556aaa3bc CR3: 00000000792d0000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	48 c1 ea 03          	shr    $0x3,%rdx
   4:	42 80 3c 2a 00       	cmpb   $0x0,(%rdx,%r13,1)
   9:	0f 85 81 05 00 00    	jne    0x590
   f:	4c 8b 65 00          	mov    0x0(%rbp),%r12
  13:	41 f6 c4 01          	test   $0x1,%r12b
  17:	0f 85 6e 03 00 00    	jne    0x38b
  1d:	4d 8d 44 24 08       	lea    0x8(%r12),%r8
  22:	4c 89 c2             	mov    %r8,%rdx
  25:	48 c1 ea 03          	shr    $0x3,%rdx
* 29:	42 80 3c 2a 00       	cmpb   $0x0,(%rdx,%r13,1) <-- trapping instruction
  2e:	0f 85 71 05 00 00    	jne    0x5a5
  34:	4d 8b 74 24 08       	mov    0x8(%r12),%r14
  39:	49 39 ee             	cmp    %rbp,%r14
  3c:	0f                   	.byte 0xf
  3d:	84                   	.byte 0x84
  3e:	76                   	.byte 0x76