{"cve":"CVE-2026-99043","nvd":{"published":"2026-10-23T13:17:27.723","modified":"2026-10-23T13:17:27.723","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix metadata_dst refcount handling on representor teardown\n\nice_eswitch_release_repr() uses metadata_dst_free() to release the\nrepresentor's metadata_dst.  metadata_dst_free() directly frees the\nunderlying memory without checking the dst_entry refcount.\n\nWhen ice_eswitch_port_start_xmit() processes a packet, it takes a\nreference via dst_hold() and attaches the metadata_dst to the skb.\nIf the representor is torn down while packets are still queued on\nthe lower device (e.g. in a qdisc), the metadata_dst is freed while\nreferences are still held.\n\nUse dst_release() instead, which correctly decrements the refcount\nand only frees the object when all references are dropped.  The dst\nsubsystem already handles metadata_dst cleanup in dst_destroy() when\nDST_METADATA is set.\n\nOther drivers sharing this pattern (nfp, airoha, bnxt) already use\ndst_release() for their metadata_dst lifecycle.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/1f263235651775f93c15d90c9f25c3f4a4ef6512","https://git.kernel.org/stable/c/58858b8f14803a7eeac297b3ce20f3b21bf2ff66","https://git.kernel.org/stable/c/5e4d20db5179e83a4948927bc39e489a9a83256d","https://git.kernel.org/stable/c/6f5544f53f1e58ea8a49fb9f9158d5793b9205b0","https://git.kernel.org/stable/c/beb05f484a1e4a5a66e3678e4b7f3147f651c080"],"products":[],"source":"nvd","synced_at":"2026-10-23T16:39:28.036610720+00:00"},"epss":{"cve":"CVE-2026-99043","score":0.00176,"percentile":0.07031,"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."]}