syzbot


general protection fault in nci_unregister_device

Status: moderation: reported on 2024/05/26 04:27
Subsystems: net nfc
[Documentation on labels]
Reported-by: syzbot+dab0c7ffecd91d20c962@syzkaller.appspotmail.com
First crash: 24d, last: 19d

Sample crash report:
Oops: general protection fault, probably for non-canonical address 0xf10ffe4ab2002002: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0x8880125590010010-0x8880125590010017]
CPU: 0 PID: 9495 Comm: syz-executor.3 Not tainted 6.10.0-rc1-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__lock_acquire+0xe3e/0x3b30 kernel/locking/lockdep.c:5005
Code: 11 00 00 39 05 93 86 1f 12 0f 82 be 05 00 00 ba 01 00 00 00 e9 e4 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 82 1f 00 00 49 81 3c 24 e0 ed e2 92 0f 84 98 f2
RSP: 0018:ffffc90002e2fb80 EFLAGS: 00010803
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 1110024ab2002002 RSI: ffff88801d87c880 RDI: 8880125590010017
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8fe2b957 R11: 0000000000000001 R12: 8880125590010017
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802c000000(0063) knlGS:0000000057f7b400
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f73833e5 CR3: 000000002661a000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0x36/0x50 kernel/locking/spinlock.c:170
 put_pwq_unlocked kernel/workqueue.c:1662 [inline]
 put_pwq_unlocked kernel/workqueue.c:1655 [inline]
 destroy_workqueue+0x5df/0xaa0 kernel/workqueue.c:5851
 nci_unregister_device+0xc0/0x300 net/nfc/nci/core.c:1305
 virtual_ncidev_close+0x51/0xb0 drivers/nfc/virtual_ncidev.c:168
 __fput+0x408/0xbb0 fs/file_table.c:422
 __fput_sync+0x47/0x50 fs/file_table.c:507
 __do_sys_close fs/open.c:1555 [inline]
 __se_sys_close fs/open.c:1540 [inline]
 __ia32_sys_close+0x86/0x100 fs/open.c:1540
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7307579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000ffff2c30 EFLAGS: 00000293 ORIG_RAX: 0000000000000006
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 0000000057f7b400
RDX: 0000000000000000 RSI: 00000000f745dff4 RDI: 00000000000240f7
RBP: 00000000f74850c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0xe3e/0x3b30 kernel/locking/lockdep.c:5005
Code: 11 00 00 39 05 93 86 1f 12 0f 82 be 05 00 00 ba 01 00 00 00 e9 e4 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 82 1f 00 00 49 81 3c 24 e0 ed e2 92 0f 84 98 f2
RSP: 0018:ffffc90002e2fb80 EFLAGS: 00010803
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 1110024ab2002002 RSI: ffff88801d87c880 RDI: 8880125590010017
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8fe2b957 R11: 0000000000000001 R12: 8880125590010017
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802c000000(0063) knlGS:0000000057f7b400
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f73833e5 CR3: 000000002661a000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	11 00                	adc    %eax,(%rax)
   2:	00 39                	add    %bh,(%rcx)
   4:	05 93 86 1f 12       	add    $0x121f8693,%eax
   9:	0f 82 be 05 00 00    	jb     0x5cd
   f:	ba 01 00 00 00       	mov    $0x1,%edx
  14:	e9 e4 00 00 00       	jmp    0xfd
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	4c 89 e2             	mov    %r12,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 82 1f 00 00    	jne    0x1fb6
  34:	49 81 3c 24 e0 ed e2 	cmpq   $0xffffffff92e2ede0,(%r12)
  3b:	92
  3c:	0f                   	.byte 0xf
  3d:	84                   	.byte 0x84
  3e:	98                   	cwtl
  3f:	f2                   	repnz

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/27 14:08 upstream 1613e604df0c c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in nci_unregister_device
2024/05/22 04:21 upstream 2a8120d7b482 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in nci_unregister_device
* Struck through repros no longer work on HEAD.