CVE-2026-99087

dm-integrity: fix NULL pointer dereference when the 'R' flag is used

Products / packages Linux

Published 23/10/2026, 12:45:05 UTC

Severity and exploitation

Not in CISA KEVNo CVSS score

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 21:55:35 UTC

Severity

unknown

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

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

Source excerpt · Linux

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Linux · Linux

Linux

4 ranges

Linux version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

468dfca38b1a6fbdccd195d875599cb7c8875cd9 → before 73e5b7b14df0430ef2135e9bd9fa3f5b253ef789

git versions

468dfca38b1a6fbdccd195d875599cb7c8875cd9 → before 2e25842f0e4423e0efb243f56153d842ed6b933f

git versions

468dfca38b1a6fbdccd195d875599cb7c8875cd9 → before 69ed43ed8a174465fca1ba6bfbde53e4618c8956

git versions

468dfca38b1a6fbdccd195d875599cb7c8875cd9 → before 7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84

git versions

Other versions: unaffected

Linux · Linux

Linux

6 ranges

Linux version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

5.2

unaffected

0 → before 5.2

semver versions

6.12.117 → through 6.12.*

semver versions

6.18.58 → through 6.18.*

semver versions

7.2.12 → through 7.2.*

semver versions

7.3 → through *

original_commit_for_fix versions

Other versions: affected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

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

dm-integrity: fix NULL pointer dereference when the 'R' flag is used

If the dm-integrity device has the SB_FLAG_DIRTY_BITMAP flag set and the user activates the device in the 'R' mode, a crash in dm_integrity_resume happens because the function attempts to read the journal containing the bitmap.

This patch makes dm-integrity skip any writes to the device in dm_integrity_resume if the device is activated in the 'R' mode.

References

4 sources

git.kernel.org/stable/c/73e5b7b14df0430ef2135e9bd9fa3f5b253ef789

Source referenceLinux

git.kernel.org/stable/c/2e25842f0e4423e0efb243f56153d842ed6b933f

Source referenceLinux

git.kernel.org/stable/c/69ed43ed8a174465fca1ba6bfbde53e4618c8956

Source referenceLinux

git.kernel.org/stable/c/7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84

Source referenceLinux

Inside the record

Evidence available

Package identity · not supplied

Version evidence

Remediation guidance · not supplied

Weakness classification · not supplied

Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-99087

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

Linux · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.2

After:

Through (inclusive):

Before: 6.12.117

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.2

After:

Through (inclusive):

Before: 6.18.58

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.2

After:

Through (inclusive):

Before: 7.2.12

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 5.2

After:

Through (inclusive):

Before: 7.3

Applicability preview

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  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "5.2",
            "versionEndExcluding": "6.12.117"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "5.2",
            "versionEndExcluding": "6.18.58"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "5.2",
            "versionEndExcluding": "7.2.12"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "5.2",
            "versionEndExcluding": "7.3"
          }
        ]
      }
    ]
  }
]

Contributing organizations · 1

Linux

Assigning organization

2026-11-10

Timeline

All times UTC

23 Oct 2026, 12:45
Advisory published
Publication date supplied by the source.
10 Nov 2026, 18:15
Source updated
Latest modification date supplied by the source.
10 Nov 2026, 18:25
Last imported by cve.new
Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes

No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

Reading the signals

Severity · CVSS: Technical impact and attack conditions. No numeric assessment supplied.
Observed exploitation · KEV: An absent or unavailable KEV listing does not establish that exploitation has not occurred.
Predicted exploitation · EPSS: 0.16% estimated probability in the next 30 days. 2026-11-10 · FIRST EPSS.

Record identifiers

Aliases: None recorded

Source evidence

Request a correction or dispute

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Find the responsible CNA →Official dispute and escalation process ↗

CVE CVE-2026-99087