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general protection fault in add_wait_queue

Status: upstream: reported C repro on 2025/02/03 09:57
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+9d55b199192a4be7d02c@syzkaller.appspotmail.com
First crash: 5d21h, last: 1h37m
Cause bisection: introduced by (bisect log) :
commit fcdd2242c0231032fc84e1404315c245ae56322a
Author: Michal Luczaj <mhal@rbox.co>
Date: Tue Jan 28 13:15:27 2025 +0000

  vsock: Keep the binding until socket destruction

Crash: BUG: unable to handle kernel NULL pointer dereference in add_wait_queue (log)
Repro: C syz .config
  
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[PATCH net 0/2] vsock: null-ptr-deref when SO_LINGER enabled 8 (8) 2025/02/05 00:11
[syzbot] [net?] general protection fault in add_wait_queue 7 (10) 2025/02/04 23:58
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in add_wait_queue fs io-uring C done done 13 1044d 1050d 22/28 fixed on 2023/02/24 13:50
▶ ▼ Last patch testing requests (2)
Created Duration User Patch Repo Result
2025/02/04 00:32 26m hdanton@sina.com patch net-next OK log
2025/02/03 12:50 35m aha310510@gmail.com patch upstream OK log

Sample crash report:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 1 UID: 0 PID: 5845 Comm: syz-executor865 Not tainted 6.13.0-syzkaller-09685-gc2933b2befe2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 2b 98 80 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 88 26 8b 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc9000407f870 EFLAGS: 00010006
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000018
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff203680f R12: ffff888035760000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000018
FS:  000055555c9b3380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000044c CR3: 00000000352c0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
 add_wait_queue+0x46/0x180 kernel/sched/wait.c:22
 virtio_transport_wait_close net/vmw_vsock/virtio_transport_common.c:1200 [inline]
 virtio_transport_close net/vmw_vsock/virtio_transport_common.c:1282 [inline]
 virtio_transport_release+0x4c4/0xce0 net/vmw_vsock/virtio_transport_common.c:1302
 __vsock_release+0xf1/0x4f0 net/vmw_vsock/af_vsock.c:830
 vsock_release+0x97/0x100 net/vmw_vsock/af_vsock.c:941
 __sock_release net/socket.c:642 [inline]
 sock_close+0xbc/0x240 net/socket.c:1393
 __fput+0x3e9/0x9f0 fs/file_table.c:450
 __do_sys_close fs/open.c:1579 [inline]
 __se_sys_close fs/open.c:1564 [inline]
 __x64_sys_close+0x7f/0x110 fs/open.c:1564
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2406c95400
Code: ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 80 3d 81 8c 07 00 00 74 17 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c
RSP: 002b:00007ffe044a2b28 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f2406c95400
RDX: 000000000000000d RSI: 0000000000000001 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 0000000000000008 R09: 000000005c9b4610
R10: 0000000020000180 R11: 0000000000000202 R12: 000000000000e3ae
R13: 00007ffe044a2b34 R14: 00007ffe044a2b50 R15: 00007ffe044a2b40
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 2b 98 80 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 88 26 8b 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc9000407f870 EFLAGS: 00010006
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000018
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff203680f R12: ffff888035760000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000018
FS:  000055555c9b3380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000044c CR3: 00000000352c0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	b6 04                	mov    $0x4,%dh
   2:	30 84 c0 0f 85 f8 16 	xor    %al,0x16f8850f(%rax,%rax,8)
   9:	00 00                	add    %al,(%rax)
   b:	45 31 f6             	xor    %r14d,%r14d
   e:	83 3d 2b 98 80 0e 00 	cmpl   $0x0,0xe80982b(%rip)        # 0xe809840
  15:	0f 84 c8 13 00 00    	je     0x13e3
  1b:	89 54 24 60          	mov    %edx,0x60(%rsp)
  1f:	89 5c 24 38          	mov    %ebx,0x38(%rsp)
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 30 00          	cmpb   $0x0,(%rax,%rsi,1) <-- trapping instruction
  2e:	74 12                	je     0x42
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 88 26 8b 00       	call   0x8b26c0
  38:	48                   	rex.W
  39:	be 00 00 00 00       	mov    $0x0,%esi
  3e:	00 fc                	add    %bh,%ah

Crashes (299):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/31 06:00 net-next c2933b2befe2 4c6ac32f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in add_wait_queue
2025/02/05 01:47 upstream d009de7d5428 4baca3d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in add_wait_queue
2025/02/05 00:15 upstream d009de7d5428 4baca3d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in add_wait_queue
2025/02/04 14:44 upstream 0de63bb7d919 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in add_wait_queue
2025/02/04 11:16 upstream 0de63bb7d919 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in add_wait_queue
2025/02/03 08:19 upstream 69e858e0b8b2 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in add_wait_queue
2025/02/03 05:54 upstream 69e858e0b8b2 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in add_wait_queue
2025/02/01 20:53 upstream 69e858e0b8b2 0dff8567 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in add_wait_queue
2025/02/01 03:43 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in add_wait_queue
2025/02/01 01:03 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in add_wait_queue
2025/01/31 22:48 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in add_wait_queue
2025/01/31 21:17 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in add_wait_queue
2025/01/31 20:34 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in add_wait_queue
2025/01/31 19:32 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in add_wait_queue
2025/01/31 19:15 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in add_wait_queue
2025/01/31 17:10 upstream 69e858e0b8b2 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in add_wait_queue
2025/02/04 22:46 upstream d009de7d5428 44c01590 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in add_wait_queue
2025/02/03 09:50 upstream 69e858e0b8b2 568559e4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in add_wait_queue
2025/02/03 05:58 upstream 69e858e0b8b2 568559e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in add_wait_queue
2025/02/01 18:11 upstream 69e858e0b8b2 0dff8567 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in add_wait_queue
2025/01/31 14:14 upstream 69e858e0b8b2 4c6ac32f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in add_wait_queue
2025/01/31 14:11 upstream 69e858e0b8b2 4c6ac32f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in add_wait_queue
2025/01/31 14:11 upstream 69e858e0b8b2 4c6ac32f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in add_wait_queue
2025/01/31 14:10 upstream 69e858e0b8b2 4c6ac32f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in add_wait_queue
2025/02/04 22:44 upstream d009de7d5428 44c01590 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/02/04 09:21 upstream 0de63bb7d919 8f267cef .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/02/03 08:18 upstream 69e858e0b8b2 568559e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/02/03 04:29 upstream 69e858e0b8b2 568559e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/02/03 04:28 upstream 69e858e0b8b2 568559e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/02/02 18:03 upstream 69e858e0b8b2 568559e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/01/31 18:13 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/01/31 15:57 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/01/31 15:56 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/01/31 14:54 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in add_wait_queue
2025/02/05 04:50 net 4241a702e0d0 4baca3d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/04 17:46 net 0e6dc66b5c5f 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/04 04:11 net 0e6dc66b5c5f a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/04 02:33 net 0e6dc66b5c5f a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/03 20:56 net 235174b2bed8 a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/03 13:34 net 235174b2bed8 a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/03 07:13 net 3f1baa91a1fd 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/03 01:41 net 3f1baa91a1fd 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/02 09:50 net 3f1baa91a1fd 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/02 07:11 net 46ded7092323 0dff8567 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/02 06:00 net 46ded7092323 0dff8567 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/02 02:29 net 46ded7092323 0dff8567 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/02 00:31 net c2933b2befe2 0dff8567 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/01 19:33 net c2933b2befe2 0dff8567 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/01 13:02 net c2933b2befe2 0dff8567 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in add_wait_queue
2025/02/01 11:31 net-next c2933b2befe2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in add_wait_queue
2025/02/01 00:16 net-next c2933b2befe2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in add_wait_queue
2025/02/04 12:27 linux-next 40b8e93e17bf 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in add_wait_queue
2025/02/03 22:43 linux-next 00f3246adeea a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in add_wait_queue
2025/02/03 18:35 linux-next 00f3246adeea a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in add_wait_queue
2025/02/03 16:48 linux-next 00f3246adeea a21a8419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in add_wait_queue
2025/02/02 22:18 upstream a86bf2283d2c 568559e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64 BUG: unable to handle kernel paging request in add_wait_queue
2025/02/02 19:03 upstream a86bf2283d2c 568559e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-compat BUG: unable to handle kernel paging request in add_wait_queue
2025/02/02 15:44 upstream a86bf2283d2c 568559e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte BUG: unable to handle kernel NULL pointer dereference in add_wait_queue
2025/02/02 14:32 upstream a86bf2283d2c 568559e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte BUG: unable to handle kernel NULL pointer dereference in add_wait_queue
2025/02/05 03:22 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2014c95afece 4baca3d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in add_wait_queue
2025/02/04 20:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2014c95afece 4baca3d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in add_wait_queue
2025/02/04 12:57 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2014c95afece 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in add_wait_queue
* Struck through repros no longer work on HEAD.