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(parent: 7a3791a) | patch
staging: fwserial: fix TIOCSSERIAL permission check
authorJohan Hovold <johan@kernel.org>
Wed, 7 Apr 2021 10:23:20 +0000 (12:23 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 7 Apr 2021 15:22:06 +0000 (17:22 +0200)
commit2104eb283df66a482b60254299acbe3c68c03412
tree4f50eaff4ae772cf74866e06f615e8b94c58f3adtree | snapshot
parent7a3791afdbd5a951b09a7689bba856bd9f6c6a9fcommit | diff
staging: fwserial: fix TIOCSSERIAL permission check

Changing the port close-delay parameter is a privileged operation so
make sure to return -EPERM if a regular user tries to change it.

Fixes: 7355ba3445f2 ("staging: fwserial: Add TTY-over-Firewire serial driver")
Cc: stable@vger.kernel.org # 3.8
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210407102334.32361-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/fwserial/fwserial.c diff | blob | history
Domain: System / Kernel;