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Change History

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

wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()

In rtl8180_init_rx_ring(), memory is allocated for skb packets and DMA
allocations in a loop. When an allocation fails, the previously
successful allocations are not freed on exit.

Fix that by jumping to err_free_rings label on error, which calls
rtl8180_free_rx_ring() to free the allocations. Remove the free of
rx_ring in rtl8180_init_rx_ring() error path, and set the freed
priv->rx_buf entry to null, to avoid double free.

https://git.kernel.org/stable/c/9b5b9c042b30befc5b37e4539ace95af70843473

https://git.kernel.org/stable/c/a813a74570212cb5f3a7d3b05c0cb0cd00bace1d

https://git.kernel.org/stable/c/c9d1c4152e6d32fa74034464854bee262a60bc43

https://git.kernel.org/stable/c/ee7db11742b30641f21306105ad27a275e3c61d7