syzbot


bpf 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+689655a7402cc18ace0a@syzkaller.appspotmail.com
Fix commit: f5c12105c15f mm,page_owner: fix refcount imbalance
First crash: 58d, last: 27d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [virtualization?] bpf boot error: WARNING: refcount bug in __free_pages_ok 2 (3) 2024/03/31 20:30

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-rc2-syzkaller-00206-ga86538a2efb8 #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 a7 b4 e7 fc 5b 5d c3 cc cc cc cc e8 9b b4 e7 fc c6 05 ea 9d e5 0a 01 90 48 c7 c7 60 49 1f 8c e8 b7 31 aa fc 90 <0f> 0b 90 90 eb d9 e8 7b b4 e7 fc c6 05 c7 9d e5 0a 01 90 48 c7 c7
RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
RAX: 6dfa94f7e32f3800 RBX: ffff888140b2a27c RCX: ffff8880166d0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000004 R08: ffffffff8157fe22 R09: fffffbfff1c39afc
R10: dffffc0000000000 R11: fffffbfff1c39afc R12: ffffea000502edc0
R13: ffffea000502edc8 R14: 1ffffd4000a05db9 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+0x65/0xe0 drivers/scsi/virtio_scsi.c:1083
 do_one_initcall+0x248/0x880 init/main.c:1238
 do_initcall_level+0x157/0x210 init/main.c:1300
 do_initcalls+0x3f/0x80 init/main.c:1316
 kernel_init_freeable+0x435/0x5d0 init/main.c:1548
 kernel_init+0x1d/0x2b0 init/main.c:1437
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>

Crashes (132):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/27 00:26 bpf a86538a2efb8 07b455f9 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/26 17:50 bpf a86538a2efb8 059e9963 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/26 11:51 bpf 5bcf0dcbf906 059e9963 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/24 18:25 bpf 5bcf0dcbf906 8bdc0f22 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/22 21:30 bpf 5bcf0dcbf906 21339d7b .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/22 18:35 bpf 5bcf0dcbf906 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/22 16:44 bpf c6f48506ba30 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/18 11:20 bpf 10541b374aa0 af24b050 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/17 18:02 bpf 10541b374aa0 bd38b692 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/16 20:53 bpf 10541b374aa0 18f6e127 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/16 16:08 bpf 10541b374aa0 0d592ce4 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/16 16:08 bpf 10541b374aa0 0d592ce4 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/15 19:15 bpf 37eacb9f6e89 0d592ce4 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/13 00:06 bpf 37eacb9f6e89 c8349e48 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/12 21:22 bpf 37eacb9f6e89 27de0a5c .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/12 09:15 bpf 6648e613226e 27de0a5c .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/11 17:21 bpf 6648e613226e 478efa7f .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/11 10:19 bpf 6648e613226e 56086b24 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/10 17:46 bpf 6648e613226e 56086b24 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/10 17:46 bpf 6648e613226e 56086b24 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/09 17:52 bpf 6648e613226e 56086b24 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/08 17:29 bpf 6648e613226e 53df08b6 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/08 08:10 bpf 6648e613226e ca620dd8 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/06 09:30 bpf 76cd33899477 ca620dd8 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/06 00:22 bpf 76cd33899477 18ea8213 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/05 19:08 bpf cfddb048040b 18ea8213 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/05 04:59 bpf c88b9b4cde17 0ee3535e .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/04 18:08 bpf ff9105993240 0ee3535e .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/04 04:38 bpf ff9105993240 51c4dcff .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/03 18:05 bpf ff9105993240 fed899ed .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/03 03:49 bpf ff9105993240 7925100d .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/02 15:28 bpf ff9105993240 6baf5069 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/02 04:38 bpf 8c3fe029d79a 6baf5069 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/04/02 04:38 bpf 8c3fe029d79a 6baf5069 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/30 11:15 bpf 6dae957c8eef 6baf5069 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/30 11:15 bpf 6dae957c8eef 6baf5069 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/30 11:15 bpf 6dae957c8eef 6baf5069 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/29 18:13 bpf 6dae957c8eef c52bcb23 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/29 18:13 bpf 6dae957c8eef c52bcb23 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/29 18:12 bpf 6dae957c8eef c52bcb23 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/29 15:17 bpf 62248b22d01e c52bcb23 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/29 15:17 bpf 62248b22d01e c52bcb23 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/29 15:17 bpf 62248b22d01e c52bcb23 .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/29 09:00 bpf 62248b22d01e 120789fd .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/29 08:59 bpf 62248b22d01e 120789fd .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/29 08:59 bpf 62248b22d01e 120789fd .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
2024/03/26 15:27 bpf 37ccdf7f11b1 bcd9b39f .config console log report [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce bpf boot error: WARNING: refcount bug in __free_pages_ok
* Struck through repros no longer work on HEAD.