Ruoyu Wang a0aa6bf985 net: pch_gbe: handle TX skb allocation failure ... pch_gbe_alloc_tx_buffers() allocates an skb for each TX descriptor and then passes the returned pointer to skb_reserve(). If netdev_alloc_skb() fails, skb_reserve() dereferences NULL. Make pch_gbe_alloc_tx_buffers() return an error when an skb allocation fails. On failure, let pch_gbe_alloc_tx_buffers() clean the partially allocated TX ring before returning the error. While bringing the device up, release the RX buffer pool through a shared cleanup helper before unwinding the IRQ setup. Cc: stable+noautosel@kernel.org # untested fix to unlikely error path Fixes: 77555ee722 ("net: Add Gigabit Ethernet driver of Topcliff PCH") Signed-off-by: Ruoyu Wang <ruoyuw560@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260615125043.3537046-1-ruoyuw560@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2026-06-18 18:00:35 -07:00
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pch_gbe	net: pch_gbe: handle TX skb allocation failure	2026-06-18 18:00:35 -07:00
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