Hello, syzbot found the following issue on: HEAD commit: c2933b2befe2 Merge tag 'net-6.14-rc1' of git://git.kernel... git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=16f676b0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d033b14aeef39158 dashboard link: https://syzkaller.appspot.com/bug?extid=9d55b199192a4be7d02c compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13300b24580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12418518580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/c7667ae12603/disk-c2933b2b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/944ca63002c1/vmlinux-c2933b2b.xz kernel image: https://storage.googleapis.com/syzbot-assets/30748115bf0b/bzImage-c2933b2b.xz The issue was bisected to: commit fcdd2242c0231032fc84e1404315c245ae56322a Author: Michal Luczaj <mhal@xxxxxxx> Date: Tue Jan 28 13:15:27 2025 +0000 vsock: Keep the binding until socket destruction bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=148f5ddf980000 final oops: https://syzkaller.appspot.com/x/report.txt?x=168f5ddf980000 console output: https://syzkaller.appspot.com/x/log.txt?x=128f5ddf980000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9d55b199192a4be7d02c@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: fcdd2242c023 ("vsock: Keep the binding until socket destruction") 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 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
