net: hip04: fix RX buffer leak on build_skb failure
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 4 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: net: hip04: fix RX buffer leak on build_skb failure When build_skb() fails in hip04_rx_poll(), the driver jumps to the refill path without releasing the current RX buffer and its DMA mapping. Installing a replacement buffer then overwrites the slot references and leaks both resources. Keep the current slot intact and return budget so NAPI retries the same buffer. Also free a newly allocated RX fragment when dma_map_single() fails. This issue was found by an in-house static analysis tool.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.265, 5.15.216, 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 5 | Affected | No fix planned: Will not fix |
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux for NVIDIA 26
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-68135
- 2026-10-03 Alias added: GHSA-46mx-vfg9-j7vh
- 2026-10-30 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/690ecc13a4032e5cae1dc6659512f32b033533b0
- https://git.kernel.org/stable/c/2b19fe277645fd1aeb18fd4ecdcf31966080dee7
- https://git.kernel.org/stable/c/bcd43ee1f25b682151df213c06a99b2e1c1cf2e5
- https://git.kernel.org/stable/c/e054dcd990d8180cde529ea28ce0838e76a5ad5e
- https://git.kernel.org/stable/c/67a7614bde310da006ab259f4f163d3fb0f9e253
- https://git.kernel.org/stable/c/80d977f280b4eccd4ac5369871d0ecb2b9c9a49d
- https://git.kernel.org/stable/c/a0f247d63489a107bbc3b712a77b302af2a2a173
- https://git.kernel.org/stable/c/14fa65d10f5696b063a7d8d26e8291ea84a2c6ed
More Linux vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-68135 · CVE Program
- CVE-2026-68135 · NVD
- FIRST EPSS
- GHSA-46mx-vfg9-j7vh · GitHub Advisory Database · CC BY 4.0
- CVE-2026-68135 · Red Hat security data · CC BY 4.0
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