CVE-2026-80737Hinoki check available

Unspecified impact via unsynchronized DMA teardown

Published Sep 3, 2026 · Updated Sep 3, 2026

Use-after-free in the amba-pl011 serial driver in Linux allows attackers to cause an unspecified impact during DMA teardown. dmaengine_terminate_all() can return while a TX callback still accesses its freed buffer, while the RX poll timer reads RX buffers without the port lock. Reachability requires the amba-pl011 UART driver and concurrent teardown activity; the Linux CVE team has not published a concrete security consequence or attacker privilege requirement.

CVSS severityUnavailable
Unscored
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Use-after-free in the amba-pl011 serial driver in Linux allows attackers to cause an unspecified impact during DMA teardown. dmaengine_terminate_all() can return while a TX callback still accesses its freed buffer, while the RX poll timer reads RX buffers without the port lock. Reachability requires the amba-pl011 UART driver and concurrent teardown activity; the Linux CVE team has not published a concrete security consequence or attacker privilege requirement.

The record

CVE
CVE-2026-80737
Published
Sep 3, 2026
Updated
Sep 3, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.39
  2. Affected versionversion=ead76f329f777c7301e0a5456a0a1c7a081570bd <440915499231e9db1c361aa45bb702e8fd3b4a32
  3. Affected versionversion=ead76f329f777c7301e0a5456a0a1c7a081570bd <44bd0ecc3444882d08ecfbc2b2418d2f463d3186
  4. Affected versionversion=ead76f329f777c7301e0a5456a0a1c7a081570bd <5974cb66681eac367107b05924744d7e3b49d41c
  5. Affected versionversion=ead76f329f777c7301e0a5456a0a1c7a081570bd <9f6989e477f03a4721d34bb4b09b17accd40283e
  6. Affected versionversion=ead76f329f777c7301e0a5456a0a1c7a081570bd <a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76e
  7. Affected versionversion=ead76f329f777c7301e0a5456a0a1c7a081570bd <c8c8e895f65fbf71ea6224e27cf8dab91b776e0d
  8. Affected versionversion=ead76f329f777c7301e0a5456a0a1c7a081570bd <f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03
  9. Affected versionversion=ead76f329f777c7301e0a5456a0a1c7a081570bd <fdfb46c387241b4eddd36d746793764413285913

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.39; version=ead76f329f777c7301e0a5456a0a1c7a081570bd <440915499231e9db1c361aa45bb702e8fd3b4a32; version=ead76f329f777c7301e0a5456a0a1c7a081570bd <44bd0ecc3444882d08ecfbc2b2418d2f463d3186; version=ead76f329f777c7301e0a5456a0a1c7a081570bd <5974cb66681eac367107b05924744d7e3b49d41c; version=ead76f329f777c7301e0a5456a0a1c7a081570bd <9f6989e477f03a4721d34bb4b09b17accd40283e; version=ead76f329f777c7301e0a5456a0a1c7a081570bd <a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76e; version=ead76f329f777c7301e0a5456a0a1c7a081570bd <c8c8e895f65fbf71ea6224e27cf8dab91b776e0d; version=ead76f329f777c7301e0a5456a0a1c7a081570bd <f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03; version=ead76f329f777c7301e0a5456a0a1c7a081570bd <fdfb46c387241b4eddd36d746793764413285913

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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