CVE-2026-74707
CVE-2026-74707: 1 tracked advisory record across Red Hat. Compare vendor sources.
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Red Hat
1 advisory- Advisory severityMedium5.5
Medium [CVE-2026-74707] validate metadata when processing requests
CVE-2026-74707Source published Source updated
In the Linux kernel, the following vulnerability has been resolved: xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata between those operations and bypass the original validation. Validate the metadata in xsk_tx_metadata_request() and use the resulting flags snapshot for every feature check. Read request fields once so all zero-copy drivers process only values observed after successful validation. A flaw was found in the Linux kernel's xsk (AF_XDP sockets) component. This vulnerability allows a local user to bypass security validation by modifying transmission (TX) metadata after it has been initially checked but…
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 9
- Red Hat package: kernel-rt
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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