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commit3b557be89fupstream. The error path in t7xx_dpmaif_rx_buf_alloc(), free and unmap the already allocated and mapped skb in a loop, but the loop condition terminates when the index reaches zero, which fails to free the first allocated skb at index zero. Check with i-- so that skb at index 0 is freed as well. Cc: stable@vger.kernel.org Fixes:d642b012df("net: wwan: t7xx: Add data path interface") Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://patch.msgid.link/20241101025316.3234023-1-ruanjinjie@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>