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: 20087 Comm: syz.4.6587 Tainted: G        W         5.15.157-syzkaller-00896-g38761ec9fc9e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:__rb_erase_color+0x20b/0xa60 lib/rbtree.c:413
Code: 49 89 de 49 c1 ee 03 43 80 3c 26 00 74 08 48 89 df e8 f9 04 2b ff 4c 8b 3b 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 4c 89 ff e8 d6 04 2b ff 41 f6 07 01 48 89 5d
RSP: 0018:ffffc90000fdf7c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff888112ecc630 RCX: 0000000000040000
RDX: ffffffff81a57f70 RSI: ffff88810b853208 RDI: ffff888112ecc620
RBP: ffffc90000fdf820 R08: ffffffff81a56030 R09: ffffed102170a645
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888112ecc620 R14: 1ffff110225d98c6 R15: 0000000000000000
FS:  00007f946d3aa6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011dbb7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 rb_erase_augmented include/linux/rbtree_augmented.h:305 [inline]
 rb_erase_augmented_cached include/linux/rbtree_augmented.h:314 [inline]
 vma_interval_tree_remove+0xb82/0xba0 mm/interval_tree.c:23
 __remove_shared_vm_struct mm/mmap.c:159 [inline]
 unlink_file_vma+0xd9/0xf0 mm/mmap.c:174
 free_pgtables+0x13f/0x280 mm/memory.c:487
 exit_mmap+0x405/0x940 mm/mmap.c:3217
 __mmput+0x95/0x310 kernel/fork.c:1179
 mmput+0x5b/0x170 kernel/fork.c:1202
 copy_process+0x25d9/0x3290 kernel/fork.c:2525
 kernel_clone+0x21e/0x9e0 kernel/fork.c:2662
 __do_sys_clone kernel/fork.c:2788 [inline]
 __se_sys_clone kernel/fork.c:2772 [inline]
 __x64_sys_clone+0x23f/0x290 kernel/fork.c:2772
 x64_sys_call+0x1b0/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f946e72ceb9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f946d3a9fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f946e8c8f80 RCX: 00007f946e72ceb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000640c7000
RBP: 00007f946e79a93e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f946e8c8f80 R15: 00007fff3bb9d7d8
 </TASK>
Modules linked in:
---[ end trace 4af9f35197cf51df ]---
RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline]
RIP: 0010:__rb_erase_color+0x20b/0xa60 lib/rbtree.c:413
Code: 49 89 de 49 c1 ee 03 43 80 3c 26 00 74 08 48 89 df e8 f9 04 2b ff 4c 8b 3b 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 4c 89 ff e8 d6 04 2b ff 41 f6 07 01 48 89 5d
RSP: 0018:ffffc90000fdf7c0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff888112ecc630 RCX: 0000000000040000
RDX: ffffffff81a57f70 RSI: ffff88810b853208 RDI: ffff888112ecc620
RBP: ffffc90000fdf820 R08: ffffffff81a56030 R09: ffffed102170a645
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888112ecc620 R14: 1ffff110225d98c6 R15: 0000000000000000
FS:  00007f946d3aa6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000011dbb7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	49 89 de             	mov    %rbx,%r14
   3:	49 c1 ee 03          	shr    $0x3,%r14
   7:	43 80 3c 26 00       	cmpb   $0x0,(%r14,%r12,1)
   c:	74 08                	je     0x16
   e:	48 89 df             	mov    %rbx,%rdi
  11:	e8 f9 04 2b ff       	call   0xff2b050f
  16:	4c 8b 3b             	mov    (%rbx),%r15
  19:	4d 89 fc             	mov    %r15,%r12
  1c:	49 c1 ec 03          	shr    $0x3,%r12
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 80 3c 04 00       	cmpb   $0x0,(%r12,%rax,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ff             	mov    %r15,%rdi
  34:	e8 d6 04 2b ff       	call   0xff2b050f
  39:	41 f6 07 01          	testb  $0x1,(%r15)
  3d:	48                   	rex.W
  3e:	89                   	.byte 0x89
  3f:	5d                   	pop    %rbp