CVE-2026-72048

Kernel memory exhaustion via failed SPI submissions

Published Aug 15, 2026 · Updated Aug 15, 2026

Memory leak in the Linux CA8210 IEEE 802.15.4 driver allows attackers to exhaust kernel memory via sustained SPI bus contention. ca8210_spi_transfer() allocates cas_ctl before spi_async(), but a failed submission never invokes the sole completion callback that frees it. The exchange and interrupt paths retry on -EBUSY, leaking roughly 600 bytes per iteration; reachability requires the CA8210 driver and sustained SPI contention.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Memory leak in the Linux CA8210 IEEE 802.15.4 driver allows attackers to exhaust kernel memory via sustained SPI bus contention. ca8210_spi_transfer() allocates cas_ctl before spi_async(), but a failed submission never invokes the sole completion callback that frees it. The exchange and interrupt paths retry on -EBUSY, leaking roughly 600 bytes per iteration; reachability requires the CA8210 driver and sustained SPI contention.

The record

CVE
CVE-2026-72048
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.12
  2. Affected versionversion=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <460c5cd51e4d7d15b317f178f42cfcb666c0fe91
  3. Affected versionversion=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <7e3630fbb6aabb844bbf35746dee0bf3894100c7
  4. Affected versionversion=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <b07aea90dbc6e188c74c100af64b77b9482ffc65
  5. Affected versionversion=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <b9071dc7889bef42590e04fbf3e56cc65e1e5e6e
  6. Affected versionversion=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <cb5cca1d2a908ddd5e357971de0f2009617b8d6a
  7. Affected versionversion=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <d4a397fe803c2d157f6ebb068b802ef75fbf109e
  8. Affected versionversion=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <e09390e439bd7cca30dd10893b1f64802961667a
  9. Affected versionversion=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <fe90605b651573d30be8293ff5be40e3d7023117

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=4.12; version=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <460c5cd51e4d7d15b317f178f42cfcb666c0fe91; version=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <7e3630fbb6aabb844bbf35746dee0bf3894100c7; version=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <b07aea90dbc6e188c74c100af64b77b9482ffc65; version=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <b9071dc7889bef42590e04fbf3e56cc65e1e5e6e; version=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <cb5cca1d2a908ddd5e357971de0f2009617b8d6a; version=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <d4a397fe803c2d157f6ebb068b802ef75fbf109e; version=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <e09390e439bd7cca30dd10893b1f64802961667a; version=ded845a781a578dfb0b5b2c138e5a067aa3b1242 <fe90605b651573d30be8293ff5be40e3d7023117

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

T1499Endpoint Denial of Service

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo