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-…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 6.6 before 6.6.158 from 6.7 before 6.12.111 from 6.13 before 6.18.53 from 6.19 before 7.2.7 Version 7.3 |
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/17e6ad484dea5ddf1c4a3d6ec77a5929161234de
- https://git.kernel.org/stable/c/18e5e0ec0e9282c897e2aa81a3e43ccaee03b003
- https://git.kernel.org/stable/c/1e213ba7cb3b9dd97ac2e0a1054e6d0d1d91f5bc
- https://git.kernel.org/stable/c/47a5cecca925ceb175d5adf712e667acf78f475f
- https://git.kernel.org/stable/c/9b26b54861ce05307d39a54ddedddf8747419614