---
id: CVE-2026-98416
title: >-
  In the Linux kernel, the following vulnerability has been resolved:


  dmaengine: ti: k3-udma-glue: fix NULL dereference in
  k3_udma_glue_release_rx_chn()


  If devm_kcalloc() for rx_chn->flows fails in a channel request function,

  the error p…
summary: >-
  In the Linux kernel, the following vulnerability has been resolved:


  dmaengine: ti: k3-udma-glue: fix NULL dereference in
  k3_udma_glue_release_rx_chn()


  If devm_kcalloc() for rx_chn->flows fails in a channel request function,

  the error p…
severity: medium
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T14:17:52.910'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98416'
references:
  - url: 'https://git.kernel.org/stable/c/0294b6dd515256c03ea2dbf508ddd3826d788579'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5a6cb4d387eebf7d32a6ed3fcd39f94bf38bd134'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5b2d92b7b177226e1dca2e80dc8369131276c2a4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/89f5414660724bb562db4ac74665da16d4a57d99'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/967612574c542dec71f820a6eb16dea80dd187a1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b14e6c52872556de2d6c137531e0ce85085c10ed'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b2985956e06632939bee47cee13bccd78ad7c3a1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b51ed7885ab0e8ecad765adc13b465cb1498cdc9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98416.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98416'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2552210'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98416'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98416'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98416.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ingestedAt: '2026-10-14T15:36:13.986Z'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= d702419134133db1eab2067dc6ea5723467fd917 <
    b51ed7885ab0e8ecad765adc13b465cb1498cdc9
  - >-
    Linux >= d702419134133db1eab2067dc6ea5723467fd917 <
    b2985956e06632939bee47cee13bccd78ad7c3a1
  - >-
    Linux >= d702419134133db1eab2067dc6ea5723467fd917 <
    967612574c542dec71f820a6eb16dea80dd187a1
  - >-
    Linux >= d702419134133db1eab2067dc6ea5723467fd917 <
    89f5414660724bb562db4ac74665da16d4a57d99
  - >-
    Linux >= d702419134133db1eab2067dc6ea5723467fd917 <
    5a6cb4d387eebf7d32a6ed3fcd39f94bf38bd134
  - >-
    Linux >= d702419134133db1eab2067dc6ea5723467fd917 <
    b14e6c52872556de2d6c137531e0ce85085c10ed
  - >-
    Linux >= d702419134133db1eab2067dc6ea5723467fd917 <
    5b2d92b7b177226e1dca2e80dc8369131276c2a4
  - >-
    Linux >= d702419134133db1eab2067dc6ea5723467fd917 <
    0294b6dd515256c03ea2dbf508ddd3826d788579
  - Linux 5.6
cvss: 4.1
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe:
  - CWE-476
epss: 0.0022
epssPercentile: 0.1245
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: ti: k3-udma-glue: fix NULL dereference in k3_udma_glue_release_rx_chn()

If devm_kcalloc() for rx_chn->flows fails in a channel request function,
the error path calls k3_udma_glue_release_rx_chn(), which dereferences
the NULL rx_chn->flows pointer in k3_udma_glue_release_rx_flow().

Skip the flow release loop in k3_udma_glue_release_rx_chn() when
rx_chn->flows is not allocated.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98416.json)