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Change History

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: MGMT: fix crash in set_mesh_sync and set_mesh_complete

There is a BUG: KASAN: stack-out-of-bounds in set_mesh_sync due to
memcpy from badly declared on-stack flexible array.

Another crash is in set_mesh_complete() due to double list_del via
mgmt_pending_valid + mgmt_pending_remove.

Use DEFINE_FLEX to declare the flexible array right, and don't memcpy
outside bounds.

As mgmt_pending_valid removes the cmd from list, use mgmt_pending_free,
and also report status on error.

https://git.kernel.org/stable/c/1c9aca1787e8395a2c59fef20e914467958969c5

https://git.kernel.org/stable/c/5c19daa93d9af29f1f46251b47e1ea66bcc8d679

https://git.kernel.org/stable/c/e8785404de06a69d89dcdd1e9a0b6ea42dc6d327