syzbot


net boot error: WARNING: refcount bug in __free_pages_ok

Status: fixed on 2024/05/22 23:46
Subsystems: virt
[Documentation on labels]
Reported-by: syzbot+84f677a274bd8b05f6cb@syzkaller.appspotmail.com
Fix commit: f5c12105c15f mm,page_owner: fix refcount imbalance
First crash: 261d, last: 227d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [virtualization?] net boot error: WARNING: refcount bug in __free_pages_ok 2 (3) 2024/04/20 09:19

Sample crash report:
Key type pkcs7_test registered
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239)
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=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=118)
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.
virtio_scsi virtio0: 1/0/0 default/read/poll queues
------------[ cut here ]------------
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc4-syzkaller-00206-ge8baa63f8789 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 lib/refcount.c:31
Code: b2 00 00 00 e8 87 04 e7 fc 5b 5d c3 cc cc cc cc e8 7b 04 e7 fc c6 05 dc 7e e4 0a 01 90 48 c7 c7 80 33 1f 8c e8 e7 80 a9 fc 90 <0f> 0b 90 90 eb d9 e8 5b 04 e7 fc c6 05 b9 7e e4 0a 01 90 48 c7 c7
RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
RAX: 71979ffeafd6e400 RBX: ffff888020ce1b4c RCX: ffff8880166d0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000004 R08: ffffffff815880a2 R09: fffffbfff1c39b48
R10: dffffc0000000000 R11: fffffbfff1c39b48 R12: ffffea0000842dc0
R13: ffffea0000842dc8 R14: 1ffffd40001085b9 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88823ffff000 CR3: 000000000e134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1141 [inline]
 __free_pages_ok+0xc60/0xd90 mm/page_alloc.c:1270
 make_alloc_exact+0xa3/0xf0 mm/page_alloc.c:4829
 vring_alloc_queue drivers/virtio/virtio_ring.c:319 [inline]
 vring_alloc_queue_split+0x20a/0x600 drivers/virtio/virtio_ring.c:1108
 vring_create_virtqueue_split+0xc6/0x310 drivers/virtio/virtio_ring.c:1158
 vring_create_virtqueue+0xca/0x110 drivers/virtio/virtio_ring.c:2683
 setup_vq+0xe9/0x2d0 drivers/virtio/virtio_pci_legacy.c:131
 vp_setup_vq+0xbf/0x330 drivers/virtio/virtio_pci_common.c:189
 vp_find_vqs_msix+0x8b2/0xc80 drivers/virtio/virtio_pci_common.c:331
 vp_find_vqs+0x4c/0x4e0 drivers/virtio/virtio_pci_common.c:408
 virtio_find_vqs include/linux/virtio_config.h:233 [inline]
 virtscsi_init+0x8db/0xd00 drivers/scsi/virtio_scsi.c:887
 virtscsi_probe+0x3ea/0xf60 drivers/scsi/virtio_scsi.c:945
 virtio_dev_probe+0x991/0xaf0 drivers/virtio/virtio.c:311
 really_probe+0x2b8/0xad0 drivers/base/dd.c:656
 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798
 driver_probe_device+0x50/0x430 drivers/base/dd.c:828
 __driver_attach+0x45f/0x710 drivers/base/dd.c:1214
 bus_for_each_dev+0x239/0x2b0 drivers/base/bus.c:368
 bus_add_driver+0x347/0x620 drivers/base/bus.c:673
 driver_register+0x23a/0x320 drivers/base/driver.c:246
 virtio_scsi_init+0x69/0xe0 drivers/scsi/virtio_scsi.c:1083
 do_one_initcall+0x248/0x880 init/main.c:1243
 do_initcall_level+0x157/0x210 init/main.c:1305
 do_initcalls+0x3f/0x80 init/main.c:1321
 kernel_init_freeable+0x435/0x5d0 init/main.c:1553
 kernel_init+0x1d/0x2b0 init/main.c:1442
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (297):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/25 17:52 net e8baa63f8789 8bdc0f22 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/25 16:19 net e3eb7dd47bd4 8bdc0f22 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/25 12:44 net 46bf0c9ab794 8bdc0f22 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/25 11:27 net 6c9cd59dbcb0 8bdc0f22 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/25 05:02 net e6b219014fb3 8bdc0f22 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/25 03:38 net 04816dc9b93c 8bdc0f22 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/25 03:38 net 04816dc9b93c 8bdc0f22 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/24 16:37 net 5b5f724b05c5 8bdc0f22 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/24 12:04 net 5b5f724b05c5 21339d7b .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/24 03:09 net 80e679b352c3 21339d7b .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/23 15:57 net a44f2eb106a4 21339d7b .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/23 10:35 net 467324bcfe1a 21339d7b .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/23 02:09 net 6bea4f03c6a4 21339d7b .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/23 00:24 net a4e3899065ff 21339d7b .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/23 00:24 net a4e3899065ff 21339d7b .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/22 19:11 net 9e91bf75dd90 21339d7b .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/22 14:57 net 9e91bf75dd90 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/22 13:27 net 4fd1edcdf13c af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/22 11:55 net c58e88d49097 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/22 08:59 net 0b8fe5bd7324 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/20 05:46 net a9176f7c66f0 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/20 04:52 net 9f898fc2c31f af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/19 12:59 net f58f45c1e5b9 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/19 11:29 net 69197dfc6400 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/19 03:10 net 7586c8501d09 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/18 22:03 net c24cd679b075 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/18 16:36 net ac1a21db32ed af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/18 14:59 net d10a7f551ece af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/18 14:58 net d10a7f551ece af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/18 09:42 net 94667949ec3b af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/18 06:41 net 94667949ec3b bd38b692 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/17 16:23 net 83781384a96b bd38b692 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/17 12:49 net 83781384a96b 18f6e127 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/17 08:42 net cb178ccb4a8e 18f6e127 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/17 03:23 net f8bbc07ac535 18f6e127 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/17 02:01 net e226eade8f50 18f6e127 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/17 02:01 net e226eade8f50 18f6e127 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/16 14:15 net e226eade8f50 0d592ce4 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/16 12:46 net 24f4c99e0035 0d592ce4 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/15 22:09 net 75ce9506ee3d 0d592ce4 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/15 11:59 net 75ce9506ee3d c8349e48 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/15 10:27 net 460b0d33cf10 c8349e48 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/14 16:52 net 1382e3b6a350 c8349e48 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/13 08:17 net 72041e537caa c8349e48 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/13 06:33 net 68aba00483c7 c8349e48 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/13 01:20 net 90be7a5ce0e5 c8349e48 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/04/12 13:51 net 90be7a5ce0e5 27de0a5c .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/03/26 21:37 net c1fd3a9433a2 454571b6 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
2024/03/22 22:32 net d24b03535e5e 7a239ce7 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce net boot error: WARNING: refcount bug in __free_pages_ok
* Struck through repros no longer work on HEAD.