HIGH 7.8 NVD
CVE-2026-98052
In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: clear txcb->last before writing each descriptor bcmasp_xmit() only wrote txcb
In the Linux kernel, the following vulnerability has been resolved:
net: bcmasp: clear txcb->last before writing each descriptor
bcmasp_xmit() only wrote txcb->last = true for the final fragment
of an SKB; non-final fragments left the field untouched. If a
descriptor slot was reused while it still held a stale true from
a previous SKB (possible when tx_spb_ring_full() underreported
fullness), bcmasp_tx_reclaim() would see last == true mid-SKB and
call dev_consume_skb_any() prematurely, freeing the sk_buff while
its remaining fragments were still in flight.
Unconditionally clear txcb->last before the conditional set so every
descriptor slot starts from a known false state regardless of what a
prior transmission left behind.
References
- https://git.kernel.org/stable/c/17e6ad484dea5ddf1c4a3d6ec77a5929161234de
- https://git.kernel.org/stable/c/18e5e0ec0e9282c897e2aa81a3e43ccaee03b003
- https://git.kernel.org/stable/c/47a5cecca925ceb175d5adf712e667acf78f475f
- https://git.kernel.org/stable/c/9b26b54861ce05307d39a54ddedddf8747419614
This high severity vulnerability with a CVSS score of 7.8 was published on 2026-09-25 via NVD.
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