syzbot |
sign-in | mailing list | source | docs |
================================================================== BUG: KCSAN: data-race in rh_port_connect / vhci_hub_control write to 0xffff8881014cf278 of 4 bytes by task 542 on cpu 1: rh_port_connect+0xbd/0xf0 drivers/usb/usbip/vhci_hcd.c:180 attach_store+0x609/0x6b0 drivers/usb/usbip/vhci_sysfs.c:436 dev_attr_store+0x44/0x60 drivers/base/core.c:2380 sysfs_kf_write+0xaa/0xc0 fs/sysfs/file.c:136 kernfs_fop_write_iter+0x1ca/0x2b0 fs/kernfs/file.c:334 call_write_iter include/linux/fs.h:2085 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x760/0x8d0 fs/read_write.c:590 ksys_write+0xeb/0x1a0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x42/0x50 fs/read_write.c:652 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b read to 0xffff8881014cf278 of 4 bytes by task 3326 on cpu 0: vhci_hub_control+0xd68/0xdc0 drivers/usb/usbip/vhci_hcd.c:657 rh_call_control drivers/usb/core/hcd.c:658 [inline] rh_urb_enqueue drivers/usb/core/hcd.c:823 [inline] usb_hcd_submit_urb+0xca2/0x14c0 drivers/usb/core/hcd.c:1531 usb_submit_urb+0xb0e/0xbc0 drivers/usb/core/urb.c:581 usb_start_wait_urb+0x91/0x190 drivers/usb/core/message.c:59 usb_internal_control_msg drivers/usb/core/message.c:103 [inline] usb_control_msg+0x182/0x240 drivers/usb/core/message.c:154 get_port_status drivers/usb/core/hub.c:604 [inline] hub_ext_port_status+0xb4/0x380 drivers/usb/core/hub.c:621 usb_hub_port_status drivers/usb/core/hub.c:643 [inline] hub_port_debounce+0x1a8/0x210 drivers/usb/core/hub.c:4619 hub_port_debounce_be_stable drivers/usb/core/hub.h:181 [inline] hub_port_connect drivers/usb/core/hub.c:5335 [inline] hub_port_connect_change drivers/usb/core/hub.c:5623 [inline] port_event drivers/usb/core/hub.c:5783 [inline] hub_event+0x1518/0x2920 drivers/usb/core/hub.c:5865 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x5b8/0xa40 kernel/workqueue.c:2706 worker_thread+0x525/0x730 kernel/workqueue.c:2787 kthread+0x1d7/0x210 kernel/kthread.c:388 ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 value changed: 0x00000700 -> 0x00010701 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 3326 Comm: kworker/0:13 Not tainted 6.8.0-rc5-syzkaller-00002-gfca7526b7d89 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: usb_hub_wq hub_event ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/02/21 02:31 | upstream | fca7526b7d89 | 3af7dd65 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in rh_port_connect / vhci_hub_control |