diff options
| author | Ruoyu Wang <ruoyuw560@gmail.com> | 2026-06-15 20:50:42 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-06-18 18:00:35 -0700 |
| commit | a0aa6bf985aa5f22f7d398ddfff3aa0754892aea (patch) | |
| tree | bacb1449a2ba0a4026c5bde14a305b7d935bb1b4 /include | |
| parent | d31deeab707b7945a7805d6406d0cd3118e640ef (diff) | |
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: 77555ee72282 ("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>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions