Bluetooth: Properly check L2CAP config option output buffer length

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commit e860d2c904 upstream.

Validate the output buffer length for L2CAP config requests and responses
to avoid overflowing the stack buffer used for building the option blocks.

Signed-off-by: Ben Seri <ben@armis.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Ben Seri 2017-09-09 23:15:59 +02:00 • committed by Ben Hutchings

parent a1b438ad85

commit 8a7b081660

1 changed files with 43 additions and 37 deletions

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net/bluetooth/l2cap_core.c

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