CVE-2026-99043ice: fix metadata_dst refcount handling on representor teardown
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 92% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 28 days later
· 28 days later
Published
- 7 days later
· 7 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 92% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected f5396b8a663f7a78ee5b75a47ee524b40795b265 – < 41f0d9ab158fb51f34bded5f8a40918e4f70b2b6
- affected f5396b8a663f7a78ee5b75a47ee524b40795b265 – < 1f263235651775f93c15d90c9f25c3f4a4ef6512
- affected f5396b8a663f7a78ee5b75a47ee524b40795b265 – < 6f5544f53f1e58ea8a49fb9f9158d5793b9205b0
- affected f5396b8a663f7a78ee5b75a47ee524b40795b265 – < beb05f484a1e4a5a66e3678e4b7f3147f651c080
- affected f5396b8a663f7a78ee5b75a47ee524b40795b265 – < 5e4d20db5179e83a4948927bc39e489a9a83256d
- affected f5396b8a663f7a78ee5b75a47ee524b40795b265 – < 58858b8f14803a7eeac297b3ce20f3b21bf2ff66
- affected 5.16
- unaffected < 5.16
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.113 – ≤ 6.12.*
- unaffected 6.18.57 – ≤ 6.18.*
- unaffected 7.2.11 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References6
- https://git.kernel.org/stable/c/41f0d9ab158fb51f34bded5f8a40918e4f70b2b6 (opens in a new tab)
- https://git.kernel.org/stable/c/1f263235651775f93c15d90c9f25c3f4a4ef6512 (opens in a new tab)
- https://git.kernel.org/stable/c/6f5544f53f1e58ea8a49fb9f9158d5793b9205b0 (opens in a new tab)
- https://git.kernel.org/stable/c/beb05f484a1e4a5a66e3678e4b7f3147f651c080 (opens in a new tab)
- https://git.kernel.org/stable/c/5e4d20db5179e83a4948927bc39e489a9a83256d (opens in a new tab)
- https://git.kernel.org/stable/c/58858b8f14803a7eeac297b3ce20f3b21bf2ff66 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-108838 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-99043)Record last updated .