usb: gadget: f_rndis: Protect RNDIS options with mutex

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commit 8d8c68b1fc upstream.

The class/subclass/protocol options are suspectible to race conditions
as they can be accessed concurrently through configfs.

Use existing mutex to protect these options. This issue was identified
during code inspection.

Fixes: 73517cf49b ("usb: gadget: add RNDIS configfs options for class/subclass/protocol")
Cc: stable@vger.kernel.org
Signed-off-by: Kuen-Han Tsai <khtsai@google.com>
Link: https://patch.msgid.link/20260320-usb-net-lifecycle-v1-2-4886b578161b@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Kuen-Han Tsai 2026-03-20 16:54:45 +08:00 • committed by Greg Kroah-Hartman

parent d7d702407b

commit c1b3d5b0ac

1 changed files with 3 additions and 0 deletions

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drivers/usb/gadget/function/f_rndis.c

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