From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f205.google.com (mail-il1-f205.google.com [209.85.166.205]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BFAF6846C for ; Sun, 30 Mar 2025 03:20:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.205 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743304834; cv=none; b=Lj+i5zevuXo7GIr1+0VXurQMZa3oD5YPBYb3HR7dTYOFl91wL9hfToItem65VJdudSRuRIqNcy8RwUE7U4tqXJ+4Ihn1tiY4IZSO7t9a8f0MQcibp7pslJ/G25fOZfdM8umg27i/k5Fmqz/m/GMdKaz6AQVfpPP7ymjh4KUGHho= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743304834; c=relaxed/simple; bh=NUELN+vXwPSdRMSiBMYjLqA4DpTiYHKGcxPI9rOua0w=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=CRoE3HlpoXiGy86ML78QKbkXgNFNKRGc/yaXTPETir1qdlczcNYPxXjnZtUavESvN45uGqrDdv0uA262VKxYOLwP/pxsz0cqrDyF1VfUGPJr6WenhUY31nZhb9QCzXCDx3r+r1wV+SStMEXJU25N9tx9UDyN4K6YXsaYKGoakok= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.205 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f205.google.com with SMTP id e9e14a558f8ab-3d5b38276deso62428255ab.3 for ; Sat, 29 Mar 2025 20:20:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743304832; x=1743909632; h=content-transfer-encoding:to:from:subject:message-id:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Rh27twaqixdY5U0tfoS2SVcqg226Y/goo21/F+KfXvQ=; b=v6o0/dzZI0b/ufYxFYQfleaZWDjoZZtrZKcqzZmpwhCS+sF9na1DyoXndrTxfITXlk KUsuDQNuFL7gEqJHWLRfZI8iMFLyHl5gA1bjqOPckckEMoQ/vc8XShfZnuJyJDMdgAbw iCxnEgyO+bYBZxGxJs69U62EmE4Hn0UV1HxUVOE5yVLMZa5PyYkHyy4nj7J/5Q0GPxsF wNyIHsAPbj4zeiaF6pqjpHREzRbbtVzbNo/VxQgct5vQrAWB27/wghvBO8T6S5j9Ek8k DZd4DL+KM13qY6FgEgFeccNLL5AsbIxeaUQ1HgLK/lUuKc7X06ANJYFBiPL+9vmKnpDD Ojuw== X-Forwarded-Encrypted: i=1; AJvYcCXiYkPQsxdOSyj1gR2Zi8SSJYtvppk7oDzdiCtN3uYghVu8F13SFtJCbqRTiaDYCh+f4ES1kmNlvMs=@vger.kernel.org X-Gm-Message-State: AOJu0Yz4eABIHQfMA405lj2lIlVGG8yW02JCQA4DS6U+w77dpnJZcIOj U8DN9kHQQKJVKhCT1G30WqbKqpneRmJJ6TQ1xLoGRwVWG9tbDwhtZFnfsDJ8h8+5qD/P7rVUmxG kwtFuZ9kFI4qEwubIaVUu9lVU8zYdf+zJxJDiF18oRKIn0YXBSuuHar0= X-Google-Smtp-Source: AGHT+IEbxfEUE5JoNFjGaYG0oC1oZGzxPQdJ1nGFJXPgwAfVMFlX+ycMFE3Dc13QSN0n3ZZ8B0rBq9E0wDBm7iQAZ97R9hljDWJm Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1809:b0:3d4:700f:67e7 with SMTP id e9e14a558f8ab-3d5e09d8e17mr38785765ab.17.1743304831902; Sat, 29 Mar 2025 20:20:31 -0700 (PDT) Date: Sat, 29 Mar 2025 20:20:31 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67e8b87f.050a0220.1547ec.0084.GAE@google.com> Subject: [syzbot] [pci?] upstream test error: general protection fault in msix_capability_init From: syzbot To: bhelgaas@google.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot found the following issue on: HEAD commit: f6e0150b2003 Merge tag 'mtd/for-6.15' of git://git.kernel..= . git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=3D15ffd43f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=3D46a07195688b794= b dashboard link: https://syzkaller.appspot.com/bug?extid=3Db6184128c9fa59212= e62 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debia= n) 2.40 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f989fd9edbe9/disk-= f6e0150b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8494075fac70/vmlinux-= f6e0150b.xz kernel image: https://storage.googleapis.com/syzbot-assets/eef916e9c416/bzI= mage-f6e0150b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit= : Reported-by: syzbot+b6184128c9fa59212e62@syzkaller.appspotmail.com ntfs3: Enabled Linux POSIX ACLs support ntfs3: Read-only LZX/Xpress compression included efs: 1.0a - http://aeschi.ch.eu.org/efs/ jffs2: version 2.2. (NAND) (SUMMARY) =C2=A9 2001-2006 Red Hat, Inc. romfs: ROMFS MTD (C) 2007 Red Hat, Inc. QNX4 filesystem 0.2.3 registered. qnx6: QNX6 filesystem 1.0.0 registered. fuse: init (API version 7.42) orangefs_debugfs_init: called with debug mask: :none: :0: orangefs_init: module version upstream loaded JFS: nTxBlock =3D 8192, nTxLock =3D 65536 SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled 9p: Installing v9fs 9p2000 file system support NILFS version 2 loaded befs: version: 0.9.3 ocfs2: Registered cluster interface o2cb ocfs2: Registered cluster interface user OCFS2 User DLM kernel interface loaded gfs2: GFS2 installed ceph: loaded (mds proto 32) NET: Registered PF_ALG protocol family xor: automatically using best checksumming function avx =20 async_tx: api initialized (async) Key type asymmetric registered Asymmetric key parser 'x509' registered Asymmetric key parser 'pkcs8' registered Key type pkcs7_test registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 238) io scheduler mq-deadline registered io scheduler kyber registered io scheduler bfq registered input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: button: Power Button [PWRF] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 ACPI: button: Sleep Button [SLPF] ioatdma: Intel(R) QuickData Technology Driver 5.00 ACPI: \_SB_.LNKC: Enabled at IRQ 11 virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKD: Enabled at IRQ 10 virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKB: Enabled at IRQ 10 virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver N_HDLC line discipline registered with maxframe=3D4096 Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled 00:03: ttyS0 at I/O 0x3f8 (irq =3D 4, base_baud =3D 115200) is a 16550A 00:04: ttyS1 at I/O 0x2f8 (irq =3D 3, base_baud =3D 115200) is a 16550A 00:05: ttyS2 at I/O 0x3e8 (irq =3D 6, base_baud =3D 115200) is a 16550A 00:06: ttyS3 at I/O 0x2e8 (irq =3D 7, base_baud =3D 115200) is a 16550A Non-volatile memory driver v1.3 Oops: general protection fault, probably for non-canonical address 0xdffffc= 0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.14.0-syzkaller-03565-gf6= e0150b2003 #0 PREEMPT(full)=20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Goo= gle 02/12/2025 RIP: 0010:msix_prepare_msi_desc drivers/pci/msi/msi.c:615 [inline] RIP: 0010:msix_setup_msi_descs drivers/pci/msi/msi.c:639 [inline] RIP: 0010:__msix_setup_interrupts drivers/pci/msi/msi.c:672 [inline] RIP: 0010:msix_setup_interrupts drivers/pci/msi/msi.c:701 [inline] RIP: 0010:msix_capability_init+0x7a0/0x1550 drivers/pci/msi/msi.c:743 Code: 10 00 74 0f e8 81 aa e7 fc 48 ba 00 00 00 00 00 fc ff df 48 89 9c 24 = d8 00 00 00 48 89 9c 24 a0 01 00 00 4c 89 f0 48 c1 e8 03 <0f> b6 04 10 84 c= 0 0f 85 75 02 00 00 41 8b 1e be 00 00 40 00 21 de RSP: 0000:ffffc90000066ee0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000008e008 RCX: ffff88801cac8000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90000067080 RBP: ffffc90000067138 R08: ffffffff8543f82f R09: 0000000000000000 R10: ffffc90000067020 R11: fffff5200000ce11 R12: 0000000000000000 R13: 0000000000000101 R14: 0000000000000000 R15: 1ffff9200000ce0e FS: 0000000000000000(0000) GS:ffff888125324000(0000) knlGS:000000000000000= 0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000000e938000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __pci_enable_msix_range+0x5c7/0x710 drivers/pci/msi/msi.c:851 pci_alloc_irq_vectors_affinity+0x10e/0x2b0 drivers/pci/msi/api.c:268 vp_request_msix_vectors drivers/virtio/virtio_pci_common.c:160 [inline] vp_find_vqs_msix+0x5da/0xeb0 drivers/virtio/virtio_pci_common.c:417 vp_find_vqs+0xa0/0x7e0 drivers/virtio/virtio_pci_common.c:525 virtio_find_vqs include/linux/virtio_config.h:226 [inline] virtio_find_single_vq include/linux/virtio_config.h:237 [inline] probe_common+0x37b/0x6b0 drivers/char/hw_random/virtio-rng.c:155 virtio_dev_probe+0x931/0xc80 drivers/virtio/virtio.c:341 really_probe+0x2b9/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 __driver_attach+0x45f/0x710 drivers/base/dd.c:1216 bus_for_each_dev+0x23e/0x2b0 drivers/base/bus.c:370 bus_add_driver+0x346/0x670 drivers/base/bus.c:678 driver_register+0x23a/0x320 drivers/base/driver.c:249 do_one_initcall+0x24a/0x940 init/main.c:1257 do_initcall_level+0x157/0x210 init/main.c:1319 do_initcalls+0x71/0xd0 init/main.c:1335 kernel_init_freeable+0x432/0x5d0 init/main.c:1567 kernel_init+0x1d/0x2b0 init/main.c:1457 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:msix_prepare_msi_desc drivers/pci/msi/msi.c:615 [inline] RIP: 0010:msix_setup_msi_descs drivers/pci/msi/msi.c:639 [inline] RIP: 0010:__msix_setup_interrupts drivers/pci/msi/msi.c:672 [inline] RIP: 0010:msix_setup_interrupts drivers/pci/msi/msi.c:701 [inline] RIP: 0010:msix_capability_init+0x7a0/0x1550 drivers/pci/msi/msi.c:743 Code: 10 00 74 0f e8 81 aa e7 fc 48 ba 00 00 00 00 00 fc ff df 48 89 9c 24 = d8 00 00 00 48 89 9c 24 a0 01 00 00 4c 89 f0 48 c1 e8 03 <0f> b6 04 10 84 c= 0 0f 85 75 02 00 00 41 8b 1e be 00 00 40 00 21 de RSP: 0000:ffffc90000066ee0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffc9000008e008 RCX: ffff88801cac8000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90000067080 RBP: ffffc90000067138 R08: ffffffff8543f82f R09: 0000000000000000 R10: ffffc90000067020 R11: fffff5200000ce11 R12: 0000000000000000 R13: 0000000000000101 R14: 0000000000000000 R15: 1ffff9200000ce0e FS: 0000000000000000(0000) GS:ffff888125324000(0000) knlGS:000000000000000= 0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000000e938000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 10 00 adc %al,(%rax) 2: 74 0f je 0x13 4: e8 81 aa e7 fc call 0xfce7aa8a 9: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 10: fc ff df 13: 48 89 9c 24 d8 00 00 mov %rbx,0xd8(%rsp) 1a: 00 1b: 48 89 9c 24 a0 01 00 mov %rbx,0x1a0(%rsp) 22: 00 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax <-- trapping instruct= ion 2e: 84 c0 test %al,%al 30: 0f 85 75 02 00 00 jne 0x2ab 36: 41 8b 1e mov (%r14),%ebx 39: be 00 00 40 00 mov $0x400000,%esi 3e: 21 de and %ebx,%esi --- 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@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title 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