Re: [PATCH v2] usb: atm: usbatm: fix invalid ci_range initialization

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Wed, 26 Aug 2026 19:02:58 +0530 you wrote:
> syzbot reported a shift-out-of-bounds in __vcc_connect():
> 
>   UBSAN: shift-out-of-bounds in net/atm/common.c:382:32
>   shift exponent -1 is negative
>   CPU: 0 UID: 0 PID: 5987 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT(full)
>   Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
>   Call Trace:
>    <TASK>
>    dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
>    ubsan_epilogue+0xa/0x30 lib/ubsan.c:233
>    __ubsan_handle_shift_out_of_bounds+0x36d/0x400 lib/ubsan.c:494
>    __vcc_connect+0x14b4/0x19c0 net/atm/common.c:382
>    vcc_connect+0x328/0x8f0 net/atm/common.c:498
>    pvc_bind+0x272/0x380 net/atm/pvc.c:52
>    __sys_bind+0x2e3/0x410 net/socket.c:1976
>    __x64_sys_bind+0x7a/0x90 net/socket.c:1979
>    ...
> 
> [...]

Here is the summary with links:
  - [v2] usb: atm: usbatm: fix invalid ci_range initialization
    https://git.kernel.org/netdev/net/c/a60fd8c6dbaa

You are awesome, thank you!
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