Answer in brief
CVE-2026-99043 records a Unknown severity vulnerability in ice: fix metadata_dst refcount handling on representor teardown. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f5396b8a663f7a78ee5b75a47ee524b40795b265 <1f263235651775f93c15d90c9f25c3f4a4ef6512 || >=f5396b8a663f7a78ee5b75a47ee524b40795b265 <6f5544f53f1e58ea8a49fb9f9158d5793b9205b0 || >=f5396b8a663f7a78ee5b75a47ee524b40795b265 <beb05f484a1e4a5a66e3678e4b7f3147f651c080 || >=f5396b8a663f7a78ee5b75a47ee524b40795b265 <5e4d20db5179e83a4948927bc39e489a9a83256d || >=f5396b8a663f7a78ee5b75a47ee524b40795b265 <58858b8f14803a7eeac297b3ce20f3b21bf2ff66 | 1f263235651775f93c15d90c9f25c3f4a4ef6512, 6f5544f53f1e58ea8a49fb9f9158d5793b9205b0, beb05f484a1e4a5a66e3678e4b7f3147f651c080, 5e4d20db5179e83a4948927bc39e489a9a83256d, 58858b8f14803a7eeac297b3ce20f3b21bf2ff66 |
| Linux/Linuxgeneric | 5.16 | Not reported |
Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 23, 2026
In the Linux kernel, the following vulnerability has been resolved: ice: fix metadata_dst refcount handling on representor teardown ice_eswitch_release_repr() uses metadata_dst_free() to release the representor's metadata_dst. metadata_dst_free() directly frees the underlying memory without checking the dst_entry refcount. When ice_eswitch_port_start_xmit() processes a packet, it takes a reference via dst_hold() and attaches the metadata_dst to the skb. If the representor is torn down while packets are still queued on the lower device (e.g. in a qdisc), the metadata_dst is freed while references are still held. Use dst_release() instead, which correctly decrements the refcount and only frees the object when all references are dropped. The dst subsystem already handles metadata_dst cleanup in dst_destroy() when DST_METADATA is set. Other drivers sharing this pattern (nfp, airoha, bnxt) already use dst_release() for their metadata_dst lifecycle.
Quoted source text, attributed separately from HOL analysis.