CVE-2026-80654: soc: xilinx: Shutdown and free rx mailbox channel
Noroxi assessment
Priority: Monitor (action score 0/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.20% (FIRST EPSS).
- Fixed version: Linux Linux 059522f4df86198f0df10dbc53d7ac04cf36a0b8, 75ed49f973d790ca3111fcabd516c0b5fd0170b4, a83e77d1e52c01c50096e6e97c57d34e0590d628; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Linux Linux 059522f4df86198f0df10dbc53d7ac04cf36a0b8, 75ed49f973d790ca3111fcabd516c0b5fd0170b4, a83e77d1e52c01c50096e6e97c57d34e0590d628; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
In the Linux kernel, the following vulnerability has been resolved: soc: xilinx: Shutdown and free rx mailbox channel A mbox rx channel is requested using mbox_request_channel_byname() in probe. In remove callback, the rx mailbox channel is cleaned up when the rx_chan is NULL due to incorrect condition check. The mailbox channel is not shutdown and it can receive messages even after the device removal. This leads to use after free. Also the channel resources are not freed. Fix this by checking the rx_chan correctly.
- Published
- Aug 28, 2026
- Updated
- Oct 30, 2026
- EPSS
- 0.2% · 10th percentile
- CWE
- —
Report tools
Action score
0
Monitor
Low priority for now.
- CVSS
- 0 / 40 · —
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
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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
- 5.6affected
- ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df and later · before 059522f4df86198f0df10dbc53d7ac04cf36a0b8affected · git
- ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df and later · before 75ed49f973d790ca3111fcabd516c0b5fd0170b4affected · git
- ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df and later · before b0f748c563921a7918c78e6a599cefd54de7d688affected · git
- ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df and later · before a83e77d1e52c01c50096e6e97c57d34e0590d628affected · git
- ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df and later · before b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5affected · git
- ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df and later · before fdee7c66c0d7b6869c36b9f9a915abf29ab5b550affected · git
- before 5.6not affected · semver
- 6.1.191 and later · up to and including 6.1.*not affected · semver
- 6.6.160 and later · up to and including 6.6.*not 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 | from 0 | — |
| Debian:13 | linux | before 6.12.100-1 | 6.12.100-1 |
| Debian:14 | linux | before 7.1.5-1 | 7.1.5-1 |
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
Published before and after this one in the same product
- ← EarlierCVE-2026-80652Aug 28, 2026 · crypto: ccp - Treat zero-length cert chain as query for blob lengths0Monitor
- ← EarlierCVE-2026-80653Aug 28, 2026 · scsi: hisi_sas: Add slave_destroy interface for v3 hw33Monitor
- Later →CVE-2026-80655Aug 28, 2026 · soc: xilinx: Fix race condition in event registration0Monitor
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 | 059522f4df86198f0df10dbc53d7ac04cf36a0b8 | Vendor (CNA) |
| Linux Linux | 75ed49f973d790ca3111fcabd516c0b5fd0170b4 | Vendor (CNA) |
| Linux Linux | a83e77d1e52c01c50096e6e97c57d34e0590d628 | Vendor (CNA) |
| Linux Linux | b0f748c563921a7918c78e6a599cefd54de7d688 | Vendor (CNA) |
| Linux Linux | b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5 | Vendor (CNA) |
| Linux Linux | fdee7c66c0d7b6869c36b9f9a915abf29ab5b550 | Vendor (CNA) |
| azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 | Release Notes | Microsoft (MSRC) |
| azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 | Release Notes | Microsoft (MSRC) |
| debian:linux | 6.12.100-1 · 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.
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Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-26-0945 · Aug 31, 2026(Linux Kernel Güvenlik Bildirimi)
Technical details
No CVSS vector for this record, so attack conditions can't be derived.
Weakness class (CWE)
—
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
Show all references (5 more)Show less
- git.kernel.org/stable/c/75ed49f973d790ca3111fcabd516c0b5fd0170b4
- git.kernel.org/stable/c/a83e77d1e52c01c50096e6e97c57d34e0590d628
- git.kernel.org/stable/c/b0f748c563921a7918c78e6a599cefd54de7d688
- git.kernel.org/stable/c/b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5
- git.kernel.org/stable/c/fdee7c66c0d7b6869c36b9f9a915abf29ab5b550
Vendor advisories and official records. Exploit/PoC links are deliberately left out.