CVE-2026-98416

Kernel crash via unchecked receive-flow cleanup

Published Oct 14, 2026 · Updated Oct 14, 2026

NULL dereference in Linux's TI K3 UDMA glue allows attackers to crash the kernel when receive-channel allocation fails. k3_udma_glue_release_rx_chn() runs its flow-release loop after devm_kcalloc() fails, and k3_udma_glue_release_rx_flow() dereferences the unallocated rx_chn->flows array. Reachability requires the affected driver and a failed receive-flow allocation; attacker control over that failure and required privileges are not documented.

CVSS severityUnavailable
Unscored
EPSS probability0.22%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL dereference in Linux's TI K3 UDMA glue allows attackers to crash the kernel when receive-channel allocation fails. k3_udma_glue_release_rx_chn() runs its flow-release loop after devm_kcalloc() fails, and k3_udma_glue_release_rx_flow() dereferences the unallocated rx_chn->flows array. Reachability requires the affected driver and a failed receive-flow allocation; attacker control over that failure and required privileges are not documented.

The record

CVE
CVE-2026-98416
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 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=5.6
  2. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <0294b6dd515256c03ea2dbf508ddd3826d788579
  3. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <5a6cb4d387eebf7d32a6ed3fcd39f94bf38bd134
  4. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <5b2d92b7b177226e1dca2e80dc8369131276c2a4
  5. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <89f5414660724bb562db4ac74665da16d4a57d99
  6. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <967612574c542dec71f820a6eb16dea80dd187a1
  7. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <b14e6c52872556de2d6c137531e0ce85085c10ed
  8. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <b2985956e06632939bee47cee13bccd78ad7c3a1
  9. Affected versionversion=d702419134133db1eab2067dc6ea5723467fd917 <b51ed7885ab0e8ecad765adc13b465cb1498cdc9

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=5.6; version=d702419134133db1eab2067dc6ea5723467fd917 <0294b6dd515256c03ea2dbf508ddd3826d788579; version=d702419134133db1eab2067dc6ea5723467fd917 <5a6cb4d387eebf7d32a6ed3fcd39f94bf38bd134; version=d702419134133db1eab2067dc6ea5723467fd917 <5b2d92b7b177226e1dca2e80dc8369131276c2a4; version=d702419134133db1eab2067dc6ea5723467fd917 <89f5414660724bb562db4ac74665da16d4a57d99; version=d702419134133db1eab2067dc6ea5723467fd917 <967612574c542dec71f820a6eb16dea80dd187a1; version=d702419134133db1eab2067dc6ea5723467fd917 <b14e6c52872556de2d6c137531e0ce85085c10ed; version=d702419134133db1eab2067dc6ea5723467fd917 <b2985956e06632939bee47cee13bccd78ad7c3a1; version=d702419134133db1eab2067dc6ea5723467fd917 <b51ed7885ab0e8ecad765adc13b465cb1498cdc9

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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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