Messages in this thread | | | Date | Tue, 21 Mar 2023 12:51:16 +0100 | From | Simon Horman <> | Subject | Re: [PATCH] Bluetooth: HCI: Fix global-out-of-bounds |
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On Mon, Mar 20, 2023 at 09:50:18PM -0400, Sungwoo Kim wrote: > To loop a variable-length array, hci_init_stage_sync(stage) considers > that stage[i] is valid as long as stage[i-1].func is valid. > Thus, the last element of stage[].func should be intentionally invalid > as hci_init0[], le_init2[], and others did. > However, amp_init1[] and amp_init2[] have no invalid element, letting > hci_init_stage_sync() keep accessing amp_init1[] over its valid range. > This patch fixes this by adding {} in the last of amp_init1[] and > amp_init2[].
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> This bug is found by FuzzBT, a modified version of Syzkaller. > Other contributors for this bug are Ruoyu Wu and Peng Hui. > > Fixes: d0b137062b2d ("Bluetooth: hci_sync: Rework init stages") > Signed-off-by: Sungwoo Kim <iam@sung-woo.kim>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
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