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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 14:47:22 +0000 (15:47 +0100)
commit999d99c8de09537bd4f4a4a7db2be6b55c6ed817
treeca4407efdaf5e0980a06ba3fd0b5b8b5cbcca969tree | snapshot
parenteb0393cdccfcd56dd35c5965e1f416d6d19e143ecommit | 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
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