syzbot


WARNING in get_data

Status: upstream: reported C repro on 2025/10/24 23:10
Subsystems: bridge
[Documentation on labels]
Reported-by: syzbot+f5d91b1897d5b094c6b4@syzkaller.appspotmail.com
First crash: 49d, last: 31d
Cause bisection: failed (error log, bisect log)
  
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] [f2fs?] WARNING in get_data 0 (2) 2025/11/09 10:15
[syzbot] Monthly f2fs report (Nov 2025) 0 (1) 2025/11/03 13:10
Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/11/29 12:29 24m retest repro linux-next OK log
2025/11/29 12:29 38m retest repro linux-next OK log
2025/11/29 12:29 42m retest repro linux-next OK log
2025/11/29 12:29 21m retest repro linux-next log
2025/11/29 06:11 24m retest repro linux-next OK log
2025/11/29 06:11 1h20m retest repro linux-next OK log
2025/11/29 06:11 24m retest repro linux-next OK log
2025/11/29 06:11 47m retest repro linux-next OK log
2025/11/29 06:11 33m retest repro linux-next OK log
2025/11/28 18:30 24m retest repro linux-next OK log

Sample crash report:
usbhid 1-1:0.1: can't add hid device: -71
------------[ cut here ]------------
WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x48a/0x840 kernel/printk/printk_ringbuffer.c:1278, CPU#0: kworker/0:4/5934
Modules linked in:
CPU: 0 UID: 0 PID: 5934 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: usb_hub_wq hub_event
RIP: 0010:get_data+0x48a/0x840 kernel/printk/printk_ringbuffer.c:1278
Code: 83 c4 f8 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 ee 01 00 00 44 89 65 00 49 83 c5 08 eb 13 e8 87 47 1f 00 90 <0f> 0b 90 eb 05 e8 7c 47 1f 00 45 31 ed 4c 89 e8 48 83 c4 28 5b 41
RSP: 0018:ffffc90003086400 EFLAGS: 00010293
RAX: ffffffff81a288a9 RBX: 00003fffffffffff RCX: ffff888025b70000
RDX: 0000000000000000 RSI: 00003fffffffffff RDI: 0000000000000000
RBP: 0000000000000012 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000012
R13: 0000000000000000 R14: ffffc90003086548 R15: 1ffffffff1c4a6c2
FS:  0000000000000000(0000) GS:ffff888125a79000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001703010 CR3: 000000007fb06000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 copy_data kernel/printk/printk_ringbuffer.c:1857 [inline]
 prb_read kernel/printk/printk_ringbuffer.c:1966 [inline]
 _prb_read_valid+0x672/0xa90 kernel/printk/printk_ringbuffer.c:2143
 prb_read_valid+0x3c/0x60 kernel/printk/printk_ringbuffer.c:2215
 printk_get_next_message+0x15c/0x7b0 kernel/printk/printk.c:2978
 console_emit_next_record kernel/printk/printk.c:3062 [inline]
 console_flush_one_record kernel/printk/printk.c:3194 [inline]
 console_flush_all+0x4cc/0xb10 kernel/printk/printk.c:3268
 __console_flush_and_unlock kernel/printk/printk.c:3298 [inline]
 console_unlock+0xbb/0x190 kernel/printk/printk.c:3338
 vprintk_emit+0x4c5/0x590 kernel/printk/printk.c:2423
 dev_vprintk_emit+0x337/0x3f0 drivers/base/core.c:4914
 dev_printk_emit+0xe0/0x130 drivers/base/core.c:4925
 _dev_err+0x10a/0x160 drivers/base/core.c:4980
 call_driver_probe drivers/base/dd.c:597 [inline]
 really_probe+0x79f/0xad0 drivers/base/dd.c:659
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:801
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:831
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:959
 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:500
 __device_attach+0x2b8/0x430 drivers/base/dd.c:1031
 bus_probe_device+0x185/0x260 drivers/base/bus.c:575
 device_add+0x7b6/0xb80 drivers/base/core.c:3689
 usb_set_configuration+0x1a87/0x2110 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c4/0x3c0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26d/0xad0 drivers/base/dd.c:659
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:801
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:831
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:959
 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:500
 __device_attach+0x2b8/0x430 drivers/base/dd.c:1031
 bus_probe_device+0x185/0x260 drivers/base/bus.c:575
 device_add+0x7b6/0xb80 drivers/base/core.c:3689
 usb_new_device+0xa39/0x1720 drivers/usb/core/hub.c:2695
 hub_port_connect drivers/usb/core/hub.c:5567 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x29b1/0x4ef0 drivers/usb/core/hub.c:5953
 process_one_work+0x94a/0x15d0 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3350 [inline]
 worker_thread+0x9b0/0xee0 kernel/workqueue.c:3431
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (1613):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/11/07 17:17 linux-next 9c0826a5d9aa 4e1406b4 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/05 18:59 linux-next 84d39fb9d529 a6c9c731 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/03 06:56 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/01 05:43 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/29 17:50 linux-next f9ba12abc528 fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/24 18:43 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/11 04:42 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/11 03:36 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/11 01:50 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/11 01:00 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 23:48 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/10 22:40 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/10 21:32 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/10 20:54 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 19:53 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 18:45 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 16:52 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 16:16 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 15:15 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 13:57 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 12:54 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 11:42 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 11:20 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/10 10:14 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 08:56 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 07:31 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/10 06:27 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/10 05:41 linux-next ab40c92c74c6 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/10 04:40 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/10 03:16 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 02:03 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 01:55 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/10 00:34 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 23:16 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 21:53 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/09 21:07 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 19:48 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/09 18:44 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 18:08 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/09 16:54 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/09 15:47 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/09 14:01 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/09 13:26 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/09 12:24 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/09 11:22 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 11:20 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 10:15 linux-next 9c0826a5d9aa 4e1406b4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 09:51 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 07:58 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 06:55 linux-next 9c0826a5d9aa 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/09 04:16 linux-next 9c0826a5d9aa 4e1406b4 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/08 03:46 linux-next 9c0826a5d9aa 4e1406b4 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/06 21:15 linux-next df5d79720b15 4e1406b4 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/06 04:05 linux-next 84d39fb9d529 a6c9c731 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/11/05 04:06 linux-next 17490bd0527f a6c9c731 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/05 01:44 linux-next 17490bd0527f a6c9c731 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/04 08:53 linux-next 98bd8b16ae57 686bf657 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/03 13:44 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/03 05:29 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/03 02:17 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/02 14:31 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/02 12:12 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/02 08:33 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/02 02:39 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/11/01 14:07 linux-next 98bd8b16ae57 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/30 10:29 linux-next 131f3d9446a6 fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/29 21:50 linux-next f9ba12abc528 fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/28 19:42 linux-next f7d2388eeec2 fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/28 14:10 linux-next f7d2388eeec2 fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/28 07:40 linux-next f7d2388eeec2 fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/28 00:51 linux-next 8fec172c82c2 fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/27 11:25 linux-next 8fec172c82c2 c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/10/26 16:31 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/26 10:41 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/10/26 08:39 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/26 02:47 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/10/25 02:12 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/24 20:45 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in get_data
2025/10/24 16:18 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
2025/10/24 13:43 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_data
* Struck through repros no longer work on HEAD.