{"cve":"CVE-2026-53009","nvd":{"published":"2026-06-24T17:17:12.117","modified":"2026-10-21T13:19:08.423","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix double-free of tx_buf skb\n\nIf ice_tso() or ice_tx_csum() fail, the error path in\nice_xmit_frame_ring() frees the skb, but the 'first' tx_buf still points\nto it and is marked as valid (ICE_TX_BUF_SKB).\n'next_to_use' remains unchanged, so the potential problem will\nlikely fix itself when the next packet is transmitted and the tx_buf\ngets overwritten. But if there is no next packet and the interface is\nbrought down instead, ice_clean_tx_ring() -> ice_unmap_and_free_tx_buf()\nwill find the tx_buf and free the skb for the second time.\n\nThe fix is to reset the tx_buf type to ICE_TX_BUF_EMPTY in the error\npath, so that ice_unmap_and_free_tx_buf().\nMove the initialization of 'first' up, to ensure it's already valid in\ncase we hit the linearization error path.\n\nThe bug was spotted by AI while I had it looking for something else.\nIt also proposed an initial version of the patch.\n\nI reproduced the bug and tested the fix by adding code to inject\nfailures, on a build with KASAN.\n\nI looked for similar bugs in related Intel drivers and did not find any.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-415","CWE-416"],"references":["https://git.kernel.org/stable/c/1a303baa715e6b78d6a406aaf335f87ff35acfcd","https://git.kernel.org/stable/c/359906450690a1d70545220bde82ba74f3fd80f8","https://git.kernel.org/stable/c/4c08fc2119ef0281cfa2cee007acf0a251be55f2","https://git.kernel.org/stable/c/910e498613d5bf4cbe5f298c2613666c38679fab","https://git.kernel.org/stable/c/eb6cf492ae991e40e1e5b2d3f32ec06e9cc678db"],"products":["linux:linux_kernel","redhat:enterprise_linux"],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-53009","score":0.00182,"percentile":0.07748,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}