diff options
Diffstat (limited to 'docs/linux')
| -rw-r--r-- | docs/linux/external_fuzzing_usb.md | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/docs/linux/external_fuzzing_usb.md b/docs/linux/external_fuzzing_usb.md index 6dd6301d5..a039195be 100644 --- a/docs/linux/external_fuzzing_usb.md +++ b/docs/linux/external_fuzzing_usb.md @@ -54,7 +54,7 @@ c. making UDC driver name configurable for syz-execprog and syz-prog2c. ## Internals -Currently syzkaller defines 5 USB syzcalls (see [this](/sys/linux/vusb.txt) and [this](/executor/common_usb.h)): +Currently syzkaller defines 5 USB pseudo-syscalls (see [this](/sys/linux/vusb.txt) and [this](/executor/common_usb.h)): 1. `syz_usb_connect` - connects a USB device. 2. `syz_usb_disconnect` - disconnects a USB device. @@ -93,7 +93,7 @@ The correspoding runtests are [here](/sys/linux/test/) and start with `vusb` pre 4. Optionally update syzkaller descriptions by extracting USB IDs using the instructions below. -5. Enable `syz_usb_connect`, `syz_usb_disconnect`, `syz_usb_control_io`, `syz_usb_ep_write` and `syz_usb_ep_read` syzcalls in the manager config. +5. Enable `syz_usb_connect`, `syz_usb_disconnect`, `syz_usb_control_io`, `syz_usb_ep_write` and `syz_usb_ep_read` pseudo-syscalls in the manager config. 6. Set `sandbox` to `none` in the manager config. @@ -104,7 +104,7 @@ The correspoding runtests are [here](/sys/linux/test/) and start with `vusb` pre ## Updating syzkaller USB IDs -Syzkaller uses a list of hardcoded [USB IDs](/sys/linux/init_vusb_ids.go) that are [patched](/sys/linux/init_vusb.go) into the `syz_usb_connect` syzcall by syzkaller runtime. +Syzkaller uses a list of hardcoded [USB IDs](/sys/linux/init_vusb_ids.go) that are [patched](/sys/linux/init_vusb.go) into the `syz_usb_connect` pseudo-syscall by syzkaller runtime. One of the ways to make syzkaller target only particular USB drivers is to alter that list. The instructions below describe a hackish way to generate syzkaller USB IDs for all USB drivers enabled in your .config. |