CVE-2026-53382

System crash via unchecked PMT PID allocation

Published Jul 19, 2026 · Updated Jul 19, 2026

NULL pointer dereference in Linux Kernel vidtv allows local users to crash the system through a failed PMT PID context allocation. vidtv_mux_pid_ctx_init() reports success after vidtv_mux_create_pid_ctx_once() fails, so vidtv_mux_push_si() dereferences a missing context. The non-default DVB_VIDTV test driver must be built and exercised; allocation failure causes a general protection fault without reported data exposure or modification.

CVSS severity5.5
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux Kernel vidtv allows local users to crash the system through a failed PMT PID context allocation. vidtv_mux_pid_ctx_init() reports success after vidtv_mux_create_pid_ctx_once() fails, so vidtv_mux_push_si() dereferences a missing context. The non-default DVB_VIDTV test driver must be built and exercised; allocation failure causes a general protection fault without reported data exposure or modification.

The record

CVE
CVE-2026-53382
Published
Jul 19, 2026
Updated
Jul 19, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 19, 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=5.10
  2. Affected versionversion=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <232e4b313ea342672edf8947e067c0de4328405b
  3. Affected versionversion=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <353d9578951dd38bc9679308f5b618ceed1f20fa
  4. Affected versionversion=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <455bc12e7b73ab5a2dfcb47822e91e772bc6c42e
  5. Affected versionversion=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <6df7e16d4f742c80add58995a6e69385b97aa9e6
  6. Affected versionversion=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <7d8bf3d8f91073f4db347ed3aa6302b56107499c
  7. Affected versionversion=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <b28b12be6e8910489e6800ed93ea4d41dfe19683
  8. Affected versionversion=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <cd923dadefadb9671b5ac341b672ff424d429c39
  9. Affected versionversion=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <f0f5a1d7056980a0d512456fdb370cfb72bba86a
  10. Affected versionversion=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <f965cf22dda7f512f4922415894c3e528269a4ae

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=5.10; version=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <232e4b313ea342672edf8947e067c0de4328405b; version=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <353d9578951dd38bc9679308f5b618ceed1f20fa; version=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <455bc12e7b73ab5a2dfcb47822e91e772bc6c42e; version=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <6df7e16d4f742c80add58995a6e69385b97aa9e6; version=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <7d8bf3d8f91073f4db347ed3aa6302b56107499c; version=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <b28b12be6e8910489e6800ed93ea4d41dfe19683; version=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <cd923dadefadb9671b5ac341b672ff424d429c39; version=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <f0f5a1d7056980a0d512456fdb370cfb72bba86a; version=f90cf6079bf67988f8b1ad1ade70fc89d0080905 <f965cf22dda7f512f4922415894c3e528269a4ae

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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