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vcc_cleanup() sets port->tty to NULL without holding port->lock, racing with vcc_event() LDC callbacks that read port->tty under port->lock and then use tty->port. This can cause a use-after-free when the callback dereferences tty->port after cleanup has already destroyed and freed it. Assisted-by: AISLE:Snapshot Cc: stable <stable@kernel.org> Signed-off-by: Joshua Rogers <linux@joshua.hu> Reviewed-by: Jiri Slaby <jirislaby@kernel.org> Link: https://patch.msgid.link/20260803-aisle-tty-vcc-v2-2-a50bc9b15193@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1092 lines
22 KiB
1092 lines
22 KiB