Vulnerability CVE-2023-52703
Published: 2024-05-21

Description:
In the Linux kernel, the following vulnerability has been resolved:

net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path

syzbot reported that act_len in kalmia_send_init_packet() is
uninitialized when passing it to the first usb_bulk_msg error path. Jiri
Pirko noted that it's pointless to pass it in the error path, and that
the value that would be printed in the second error path would be the
value of act_len from the first call to usb_bulk_msg.[1]

With this in mind, let's just not pass act_len to the usb_bulk_msg error
paths.

1: https://lore.kernel.org/lkml/Y9pY61y1nwTuzMOa@nanopsycho/

 References:
https://git.kernel.org/stable/c/1b5de7d44890b78519acbcc80d8d1f23ff2872e5
https://git.kernel.org/stable/c/723ef7b66f37c0841f5a451ccbce47ee1641e081
https://git.kernel.org/stable/c/a753352622b4f3c0219e0e9c73114b2848ae6042
https://git.kernel.org/stable/c/525bdcb0838d19d918c7786151ee14661967a030
https://git.kernel.org/stable/c/338f826d3afead6e4df521f7972a4bef04a72efb
https://git.kernel.org/stable/c/02df3170c04a8356cd571ab9155a42f030190abc
https://git.kernel.org/stable/c/c68f345b7c425b38656e1791a0486769a8797016
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