CVE-2026-53297

Kernel panic via repeated MANA device removal

Published Jun 26, 2026 · Updated Jun 26, 2026

NULL dereference in Linux kernel 5.16 through 6.18.32 and 6.19 through 7.0.9 allows local users to trigger a kernel panic during resume. After mana_probe() handles a failed mana_attach() by calling mana_remove(), a later device unbind invokes mana_remove() again and dereferences the cleared gdma_context through gc->dev. Reachability requires a MANA network device, a power-management resume failure, and subsequent driver unbinding; the bounded consequence is a host crash.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL dereference in Linux kernel 5.16 through 6.18.32 and 6.19 through 7.0.9 allows local users to trigger a kernel panic during resume. After mana_probe() handles a failed mana_attach() by calling mana_remove(), a later device unbind invokes mana_remove() again and dereferences the cleared gdma_context through gc->dev. Reachability requires a MANA network device, a power-management resume failure, and subsequent driver unbinding; the bounded consequence is a host crash.

The record

CVE
CVE-2026-53297
Published
Jun 26, 2026
Updated
Jun 26, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 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=5.16
  2. Affected versionversion=635096a86edb067d55a1e04b4a918f5c6dac0c51 <50271d7ec95144d26808025b508f463780517d3c
  3. Affected versionversion=635096a86edb067d55a1e04b4a918f5c6dac0c51 <a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6
  4. Affected versionversion=635096a86edb067d55a1e04b4a918f5c6dac0c51 <bbe5c3c570645a4ceb120979d3ee203a1583d775

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=5.16; version=635096a86edb067d55a1e04b4a918f5c6dac0c51 <50271d7ec95144d26808025b508f463780517d3c; version=635096a86edb067d55a1e04b4a918f5c6dac0c51 <a1ddfd2c0b7a48e5239fadd2a24cc4bc2cda90e6; version=635096a86edb067d55a1e04b4a918f5c6dac0c51 <bbe5c3c570645a4ceb120979d3ee203a1583d775

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
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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