CVE-2026-74545 | BDVDB-2026-360262 Detail

Description#

In the Linux kernel, the following vulnerability has been resolved: rtase: fix double free of multi-frag skb on DMA map failure In rtase_start_xmit(), when the head buffer DMA mapping fails after rtase_xmit_frags() has mapped all fragments, the error path clears the fragment descriptors with rtase_tx_clear_range(), which frees the skb through the last-frag slot and accounts tx_dropped. Control then falls through to the common error label, which frees the same skb a second time and counts it again. Return right after clearing the fragments when the skb owns frags; the no-frag case still drops through and frees the head skb once.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-08-15Record published in the CVE List.
2. Version 22026-08-17Most recent update recorded in the CVE List.