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USB: properly lock dynamic id list when showing an id
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 13 Nov 2024 06:49:23 +0000 (07:49 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 14 Nov 2024 16:05:25 +0000 (17:05 +0100)
commit81f5c72d041b92490261354a528b60e66ed2fa3b
tree12b2a4a74580fc2a5bd23f37f894fc650dffec45tree
parent0b3144da31f855fce652303f588416a60991bdefcommit | diff
USB: properly lock dynamic id list when showing an id

When walking the list of dynamic ids for a driver, no lock was being
held, which meant that an id could be removed or added while the list
was being iterated.  Fix this up by properly grabing the lock while we
walk the list.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Cc: linux-usb@vger.kernel.org
Link: https://lore.kernel.org/r/2024111324-tubby-facecloth-d4a0@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/core/driver.c diff | blob | history
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