Hello, syzbot found the following issue on: HEAD commit: 40d43a7507e1 Add linux-next specific files for 20220811 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=14516c0d080000 kernel config: https://syzkaller.appspot.com/x/.config?x=a5ae8cfa8d7075d1 dashboard link: https://syzkaller.appspot.com/bug?extid=fa81ecc0eb36dcfb86bb compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+fa81ecc0eb36dcfb86bb@xxxxxxxxxxxxxxxxxxxxxxxxx input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 ACPI: button: Sleep Button [SLPF] 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=4096 Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A Non-volatile memory driver v1.3 Linux agpgart interface v0.103 ACPI: bus type drm_connector registered [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 Console: switching to colour frame buffer device 128x48 platform vkms: [drm] fb0: vkmsdrmfb frame buffer device usbcore: registered new interface driver udl brd: module loaded loop: module loaded zram: Added device: zram0 null_blk: disk nullb0 created null_blk: module loaded Guest personality initialized and is inactive VMCI host device registered (name=vmci, major=10, minor=120) Initialized host personality usbcore: registered new interface driver rtsx_usb usbcore: registered new interface driver viperboard usbcore: registered new interface driver dln2 usbcore: registered new interface driver pn533_usb nfcsim 0.2 initialized usbcore: registered new interface driver port100 usbcore: registered new interface driver nfcmrvl Loading iSCSI transport class v2.0-870. scsi host0: Virtio SCSI HBA st: Version 20160209, fixed bufsize 32768, s/g segs 256 Rounding down aligned max_sectors from 4294967295 to 4294967288 db_root: cannot open: /etc/target slram: not enough parameters. ftl_cs: FTL header not found. wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information. wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@xxxxxxxxx>. All Rights Reserved. eql: Equalizer2002: Simon Janes (simon@xxxxxxx) and David S. Miller (davem@xxxxxxxxxx) MACsec IEEE 802.1AE tun: Universal TUN/TAP device driver, 1.6 BUG: unable to handle page fault for address: ffffdc0000000004 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 11826067 P4D 11826067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.19.0-next-20220811-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:proc_match fs/proc/generic.c:48 [inline] RIP: 0010:pde_subdir_insert fs/proc/generic.c:101 [inline] RIP: 0010:proc_register+0x255/0x700 fs/proc/generic.c:375 Code: 07 38 d0 7f 08 84 c0 0f 85 ab 03 00 00 48 8b 04 24 48 8d 7b 23 48 89 fa 83 e2 07 44 0f b6 a8 e3 00 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 30 45 89 ef 38 d0 7f 08 84 c0 0f 85 70 03 00 00 44 0f RSP: 0000:ffffc900000675d0 EFLAGS: 00010a02 RAX: 1fffe00000000004 RBX: ffff000000000000 RCX: 0000000000000000 RDX: 0000000000000003 RSI: ffffffff81fae17c RDI: ffff000000000023 RBP: ffff888147325708 R08: 0000000000000004 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffdc0000000004 CR3: 000000000bc8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> _proc_mkdir fs/proc/generic.c:498 [inline] proc_mkdir_data fs/proc/generic.c:507 [inline] proc_mkdir+0x10b/0x170 fs/proc/generic.c:521 register_irq_proc+0x156/0x390 kernel/irq/proc.c:360 __setup_irq+0x10fd/0x1c90 kernel/irq/manage.c:1818 request_threaded_irq+0x2b2/0x3e0 kernel/irq/manage.c:2198 request_irq include/linux/interrupt.h:168 [inline] vp_find_vqs_msix+0x961/0xea0 drivers/virtio/virtio_pci_common.c:345 vp_find_vqs+0x5a/0x540 drivers/virtio/virtio_pci_common.c:407 virtio_find_vqs_ctx_size include/linux/virtio_config.h:252 [inline] virtnet_find_vqs+0x6cd/0xf00 drivers/net/virtio_net.c:3512 init_vqs drivers/net/virtio_net.c:3600 [inline] virtnet_probe+0x11c0/0x2f30 drivers/net/virtio_net.c:3898 virtio_dev_probe+0x577/0x870 drivers/virtio/virtio.c:305 call_driver_probe drivers/base/dd.c:530 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:609 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:748 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:778 __driver_attach+0x223/0x550 drivers/base/dd.c:1150 bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301 bus_add_driver+0x4c9/0x640 drivers/base/bus.c:618 driver_register+0x220/0x3a0 drivers/base/driver.c:240 virtio_net_driver_init+0x93/0xd2 drivers/net/virtio_net.c:4102 do_one_initcall+0xfe/0x650 init/main.c:1299 do_initcall_level init/main.c:1374 [inline] do_initcalls init/main.c:1390 [inline] do_basic_setup init/main.c:1409 [inline] kernel_init_freeable+0x6b1/0x73a init/main.c:1616 kernel_init+0x1a/0x1d0 init/main.c:1505 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> Modules linked in: CR2: ffffdc0000000004 ---[ end trace 0000000000000000 ]--- RIP: 0010:proc_match fs/proc/generic.c:48 [inline] RIP: 0010:pde_subdir_insert fs/proc/generic.c:101 [inline] RIP: 0010:proc_register+0x255/0x700 fs/proc/generic.c:375 Code: 07 38 d0 7f 08 84 c0 0f 85 ab 03 00 00 48 8b 04 24 48 8d 7b 23 48 89 fa 83 e2 07 44 0f b6 a8 e3 00 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 30 45 89 ef 38 d0 7f 08 84 c0 0f 85 70 03 00 00 44 0f RSP: 0000:ffffc900000675d0 EFLAGS: 00010a02 RAX: 1fffe00000000004 RBX: ffff000000000000 RCX: 0000000000000000 RDX: 0000000000000003 RSI: ffffffff81fae17c RDI: ffff000000000023 RBP: ffff888147325708 R08: 0000000000000004 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000002 R14: dffffc0000000000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffdc0000000004 CR3: 000000000bc8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 38 d0 cmp %dl,%al 2: 7f 08 jg 0xc 4: 84 c0 test %al,%al 6: 0f 85 ab 03 00 00 jne 0x3b7 c: 48 8b 04 24 mov (%rsp),%rax 10: 48 8d 7b 23 lea 0x23(%rbx),%rdi 14: 48 89 fa mov %rdi,%rdx 17: 83 e2 07 and $0x7,%edx 1a: 44 0f b6 a8 e3 00 00 movzbl 0xe3(%rax),%r13d 21: 00 22: 48 89 f8 mov %rdi,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax <-- trapping instruction 2e: 45 89 ef mov %r13d,%r15d 31: 38 d0 cmp %dl,%al 33: 7f 08 jg 0x3d 35: 84 c0 test %al,%al 37: 0f 85 70 03 00 00 jne 0x3ad 3d: 44 rex.R 3e: 0f .byte 0xf --- This report is generated by a bot. 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