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Bluetooth: L2CAP: Fix attempting to access uninitialized memory
authorLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
Mon, 31 Oct 2022 23:10:52 +0000 (16:10 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 10 Nov 2022 17:15:36 +0000 (18:15 +0100)
commit3e4697ffdfbb38a2755012c4e571546c89ab6422
treeccbb5a6fbb571037ac5fff1881ee6c0ff15949abtree | snapshot
parent81035e1201e26d57d9733ac59140a3e29befbc5acommit | diff
Bluetooth: L2CAP: Fix attempting to access uninitialized memory

commit b1a2cd50c0357f243b7435a732b4e62ba3157a2e upstream.

On l2cap_parse_conf_req the variable efs is only initialized if
remote_efs has been set.

CVE: CVE-2022-42895
CC: stable@vger.kernel.org
Reported-by: Tamás Koczka <poprdi@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Reviewed-by: Tedd Ho-Jeong An <tedd.an@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/bluetooth/l2cap_core.c diff | blob | history
Domain: System / Kernel;