RDMA/hfi1: Propagate sdma_txinit_ahg() errors
In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Propagate sdma_txinit_ahg() errors set_txreq_header_ahg() ignores the return value of sdma_txinit_ahg(). If sdma_txinit_ahg() fails, it returns before initializing tx->txreq. However, set_txreq_header_ahg() ignores the error and returns the AHG change count, causing the caller to continue processing the request as though initialization had succeeded. Propagate sdma_txinit_ahg() failures to the caller and abort request processing when initialization fails. Found by Linux Verification Center (linuxtesting.org) with SVACE.
- Published
- Sep 17, 2026
- Updated
- Sep 18, 2026
- EPSS
- 0.2% · 6th percentile
- CWE
- —
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Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CNA vs NVD score
- NVD
- —
- CNA · Linux
- 7.8
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
—
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 4.14affected
- e3304b7cc4f14d365f46d6847a35563ae8b017f7 and later · before cb73c2fe6e9cf563c99f22b7c8bca0d5f70d603eaffected · git
- e3304b7cc4f14d365f46d6847a35563ae8b017f7 and later · before 122a730675565ff2ad210537c3fc3afb8291d482affected · git
- e3304b7cc4f14d365f46d6847a35563ae8b017f7 and later · before bf974994150cfd14bfc599748925f4d426e00d90affected · git
- e3304b7cc4f14d365f46d6847a35563ae8b017f7 and later · before fd6dee13f3857259b6b2ddd28e1ed95fd94ae2f9affected · git
- e3304b7cc4f14d365f46d6847a35563ae8b017f7 and later · before 5b7cefffd15d87c8103865f887cdcf9077d8094baffected · git
- e3304b7cc4f14d365f46d6847a35563ae8b017f7 and later · before 3416db552eb378e54cb2f2ce0db5f0df88654bdaaffected · git
- e3304b7cc4f14d365f46d6847a35563ae8b017f7 and later · before ca99431820e8cac19f6a091c04da54cbe8d64f52affected · git
- e3304b7cc4f14d365f46d6847a35563ae8b017f7 and later · before 091c6162c022cbdfb64219708a71728cfd1d4600affected · git
- before 4.14not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | all versions | — |
| Debian:13 | linux | before 6.12.111-1 | 6.12.111-1 |
| Debian:14 | linux | before 7.2.6-1 | 7.2.6-1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation40Plan
- CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment40Plan
- CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()40Plan
- CVE-2026-74309vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler40Plan
- CVE-2026-74280crypto: marvell/octeontx - fix DMA cleanup using wrong loop index40Plan
- CVE-2026-74279crypto: cavium/cpt - fix DMA cleanup using wrong loop index40Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 091c6162c022cbdfb64219708a71728cfd1d4600 | Vendor (CNA) |
| Linux Linux | 122a730675565ff2ad210537c3fc3afb8291d482 | Vendor (CNA) |
| Linux Linux | 3416db552eb378e54cb2f2ce0db5f0df88654bda | Vendor (CNA) |
| Linux Linux | 5b7cefffd15d87c8103865f887cdcf9077d8094b | Vendor (CNA) |
| Linux Linux | bf974994150cfd14bfc599748925f4d426e00d90 | Vendor (CNA) |
| Linux Linux | ca99431820e8cac19f6a091c04da54cbe8d64f52 | Vendor (CNA) |
| Linux Linux | cb73c2fe6e9cf563c99f22b7c8bca0d5f70d603e | Vendor (CNA) |
| Linux Linux | fd6dee13f3857259b6b2ddd28e1ed95fd94ae2f9 | Vendor (CNA) |
| debian:linux | 6.12.111-1 · Debian:13 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/091c6162c022cbdfb64219708a71728cfd1d4600
- git.kernel.org/stable/c/122a730675565ff2ad210537c3fc3afb8291d482
- git.kernel.org/stable/c/3416db552eb378e54cb2f2ce0db5f0df88654bda
- git.kernel.org/stable/c/5b7cefffd15d87c8103865f887cdcf9077d8094b
- git.kernel.org/stable/c/bf974994150cfd14bfc599748925f4d426e00d90
- git.kernel.org/stable/c/ca99431820e8cac19f6a091c04da54cbe8d64f52
- git.kernel.org/stable/c/cb73c2fe6e9cf563c99f22b7c8bca0d5f70d603e
- git.kernel.org/stable/c/fd6dee13f3857259b6b2ddd28e1ed95fd94ae2f9
Vendor advisories and official records. Exploit/PoC links are deliberately left out.