CVE-2026-68135
net: hip04: fix RX buffer leak on build_skb failure
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: net: hip04: fix RX buffer leak on build_skb failure When build_skb() fails in hip04_rx_poll(), the driver jumps to the refill path without releasing the current RX buffer and its DMA mapping. Installing a replacement buffer then overwrites the slot references and leaks both resources. Keep the current slot intact and return budget so NAPI retries the same buffer. Also free a newly allocated RX fragment when dma_map_single() fails. This issue was found by an in-house static analysis tool.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.5
References 8
git.kernel.org
- stable/c/690ecc13a4032e5cae1dc6659512f32b033533b0
- stable/c/2b19fe277645fd1aeb18fd4ecdcf31966080dee7
- stable/c/bcd43ee1f25b682151df213c06a99b2e1c1cf2e5
- stable/c/e054dcd990d8180cde529ea28ce0838e76a5ad5e
- stable/c/67a7614bde310da006ab259f4f163d3fb0f9e253
- stable/c/80d977f280b4eccd4ac5369871d0ecb2b9c9a49d
- stable/c/a0f247d63489a107bbc3b712a77b302af2a2a173
- stable/c/14fa65d10f5696b063a7d8d26e8291ea84a2c6ed