Description
In the Linux kernel, the following vulnerability has been resolved: net: ll_temac: Make sure to free skb when it is completely used With the skb pointer piggy-backed on the TX BD, we have a simple and efficient way to free the skb buffer when the frame has been transmitted. But in order to avoid freeing the skb while there are still fragments from the skb in use, we need to piggy-back on the TX BD of the skb, not the first. Without this, we are doing use-after-free on the DMA side, when the first BD of a multi TX BD packet is seen as completed in xmit_done, and the remaining BDs are still being processed.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
92744989533cbe85e8057935d230e128810168ce to < 6d120ab4dc39a543c6b63361e1d0541c382900a3affected92744989533cbe85e8057935d230e128810168ce to < 019ab7d044d0ebf97e1236bb8935b7809be92358affected92744989533cbe85e8057935d230e128810168ce to < e8afe05bd359ebe12a61dbdc94c06c00ea3e8d4baffected92744989533cbe85e8057935d230e128810168ce to < 6aa32217a9a446275440ee8724b1ecaf1838df47affected
Linux Linux
Default version status: affected
2.6.31affected0 to < 2.6.31unaffected5.4.128 to ≤ 5.4.*unaffected5.10.46 to ≤ 5.10.*unaffected5.12.13 to ≤ 5.12.*unaffected5.13 to ≤ *unaffected