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CVE-2026-99236

tracing: Reject incomplete event filter expressions

Products / packages Linux

Published

Share

Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 06/11/2026, 21:10:31 UTC
Linux · CVSS:3.1 · 7.8
Assessment vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity

high7.8

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

9 ranges

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

affected

80765597bc587feae8dbc8ce97a0f32e12a6e625 → before 4a1a6d35359991c5d47f4bf101cfbe1475c94093

git versions

80765597bc587feae8dbc8ce97a0f32e12a6e625 → before 2a98f5d4913ec081e08e1075512cb7ec313d9f72

git versions

80765597bc587feae8dbc8ce97a0f32e12a6e625 → before 15ff3cc7f2beecc3f95d66358f20ad7b057466aa

git versions

80765597bc587feae8dbc8ce97a0f32e12a6e625 → before b205ff58e02922ac324f931cf9eb238a3acdb048

git versions

80765597bc587feae8dbc8ce97a0f32e12a6e625 → before 5a999b5a16530898f0dbe5f8c50fd45ea72e110b

git versions

80765597bc587feae8dbc8ce97a0f32e12a6e625 → before 1008e9e0b8280d47f1ab5e9c113f666a023a9697

git versions

80765597bc587feae8dbc8ce97a0f32e12a6e625 → before 64993d970dde2a2da353e9e99595a4fa88ec27d9

git versions

80765597bc587feae8dbc8ce97a0f32e12a6e625 → before 5bcdf3c18c3471122ee9652b0e2f5cdb718d9a46

git versions

80765597bc587feae8dbc8ce97a0f32e12a6e625 → before 1fdc4164e488916402badddbb1f51e9380dabb91

git versions

unaffected

unknown

Other versions: unaffected

Linux · Linux

Linux

11 ranges

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

affected

4.17

unaffected

0 → before 4.17

semver versions

5.10.273 → through 5.10.*

semver versions

5.15.224 → through 5.15.*

semver versions

6.1.191 → through 6.1.*

semver versions

6.6.161 → through 6.6.*

semver versions

6.12.115 → through 6.12.*

semver versions

6.18.60 → through 6.18.*

semver versions

7.2.14 → through 7.2.*

semver versions

7.3.1 → through 7.3.*

semver versions

7.4-rc1 → through *

original_commit_for_fix versions

unknown

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:

tracing: Reject incomplete event filter expressions

A non-empty expression normally finishes in predicate_parse()'s inner loop, which resolves the pending logical operators before jumping to finalization. If the input ends after an operator, possibly followed by unary '!' tokens, the outer loop instead falls through with unresolved operator state.

For example, "common_pid == 1 || common_pid == 2 &&" leaves prog[0].target equal to -1. The second pass then reads prog[-1] before the forward-jump check can reject it. Depending on adjacent slab contents, it can also copy an out-of-bounds word into a branch target that passes the forward-only check. A self-targeted perf tracepoint counting event can reach this path through PERF_EVENT_IOC_SET_FILTER.

Reject the outer-loop fallthrough when a predicate has already been parsed. This ensures that non-empty expressions only reach finalization after the inner loop has resolved their operators. Keep the existing no-filter error for input that has no predicates. Add a regression test for trailing logical operators and unary negations.

References

9 sources

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-2026-99236

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): 4.17

Before: 5.10.273

Vulnerable product

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

From (inclusive): 4.17

Before: 5.15.224

Vulnerable product

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

From (inclusive): 4.17

Before: 6.1.191

Vulnerable product

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

From (inclusive): 4.17

Before: 6.6.161

Vulnerable product

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

From (inclusive): 4.17

Before: 6.12.115

Vulnerable product

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

From (inclusive): 4.17

Before: 6.18.60

Vulnerable product

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

From (inclusive): 4.17

Before: 7.2.14

Vulnerable product

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

From (inclusive): 4.17

Before: 7.3.1

Vulnerable product

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

From (inclusive): 4.17

Before: 7.4-rc1

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "4.17",
            "versionEndExcluding": "5.10.273"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "4.17",
            "versionEndExcluding": "5.15.224"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "4.17",
            "versionEndExcluding": "6.1.191"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "4.17",
            "versionEndExcluding": "6.6.161"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "4.17",
            "versionEndExcluding": "6.12.115"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "4.17",
            "versionEndExcluding": "6.18.60"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "4.17",
            "versionEndExcluding": "7.2.14"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "4.17",
            "versionEndExcluding": "7.3.1"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "4.17",
            "versionEndExcluding": "7.4-rc1"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 1
Linux

Assigning organization

2026-11-03

Timeline

All times UTC
  1. Advisory published

    Publication date supplied by the source.

  2. Source updated

    Latest modification date supplied by the source.

  3. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2026-99236

    Observed 2026-11-03T19:50:45.284Z · upstream updated 2026-11-03T19:13:04.332Z

    Product or version evidence changed

    before

    [
      {
        "vendor": "Linux",
        "name": "Linux",
        "platforms": [],
        "versions": [
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "4a1a6d35359991c5d47f4bf101cfbe1475c94093",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "2a98f5d4913ec081e08e1075512cb7ec313d9f72",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "15ff3cc7f2beecc3f95d66358f20ad7b057466aa",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "b205ff58e02922ac324f931cf9eb238a3acdb048",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "5a999b5a16530898f0dbe5f8c50fd45ea72e110b",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "1008e9e0b8280d47f1ab5e9c113f666a023a9697",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "64993d970dde2a2da353e9e99595a4fa88ec27d9",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "5bcdf3c18c3471122ee9652b0e2f5cdb718d9a46",
            "versionType": "git"
          }
        ],
        "defaultStatus": "unaffected",
        "cpes": [],
        "source": "Linux",
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-99236"
      },
      {
        "vendor": "Linux",
        "name": "Linux",
        "platforms": [],
        "versions": [
          {
            "version": "4.17",
            "status": "affected"
          },
          {
            "version": "0",
            "status": "unaffected",
            "lessThan": "4.17",
            "versionType": "semver"
          },
          {
            "version": "5.10.273",
            "status": "unaffected",
            "lessThanOrEqual": "5.10.*",
            "versionType": "semver"
          },
          {
            "version": "5.15.224",
            "status": "unaffected",
            "lessThanOrEqual": "5.15.*",
            "versionType": "semver"
          },
          {
            "version": "6.1.191",
            "status": "unaffected",
            "lessThanOrEqual": "6.1.*",
            "versionType": "semver"
          },
          {
            "version": "6.6.161",
            "status": "unaffected",
            "lessThanOrEqual": "6.6.*",
            "versionType": "semver"
          },
          {
            "version": "6.12.115",
            "status": "unaffected",
            "lessThanOrEqual": "6.12.*",
            "versionType": "semver"
          },
          {
            "version": "6.18.60",
            "status": "unaffected",
            "lessThanOrEqual": "6.18.*",
            "versionType": "semver"
          },
          {
            "version": "7.2.14",
            "status": "unaffected",
            "lessThanOrEqual": "7.2.*",
            "versionType": "semver"
          },
          {
            "version": "7.3.1",
            "status": "unaffected",
            "lessThanOrEqual": "7.3.*",
            "versionType": "semver"
          }
        ],
        "defaultStatus": "affected",
        "cpes": [],
        "source": "Linux",
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-99236"
      }
    ]

    after

    [
      {
        "vendor": "Linux",
        "name": "Linux",
        "platforms": [],
        "versions": [
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "4a1a6d35359991c5d47f4bf101cfbe1475c94093",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "2a98f5d4913ec081e08e1075512cb7ec313d9f72",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "15ff3cc7f2beecc3f95d66358f20ad7b057466aa",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "b205ff58e02922ac324f931cf9eb238a3acdb048",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "5a999b5a16530898f0dbe5f8c50fd45ea72e110b",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "1008e9e0b8280d47f1ab5e9c113f666a023a9697",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "64993d970dde2a2da353e9e99595a4fa88ec27d9",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "5bcdf3c18c3471122ee9652b0e2f5cdb718d9a46",
            "versionType": "git"
          },
          {
            "version": "80765597bc587feae8dbc8ce97a0f32e12a6e625",
            "status": "affected",
            "lessThan": "1fdc4164e488916402badddbb1f51e9380dabb91",
            "versionType": "git"
          }
        ],
        "defaultStatus": "unaffected",
        "cpes": [],
        "source": "Linux",
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-99236"
      },
      {
        "vendor": "Linux",
        "name": "Linux",
        "platforms": [],
        "versions": [
          {
            "version": "4.17",
            "status": "affected"
          },
          {
            "version": "0",
            "status": "unaffected",
            "lessThan": "4.17",
            "versionType": "semver"
          },
          {
            "version": "5.10.273",
            "status": "unaffected",
            "lessThanOrEqual": "5.10.*",
            "versionType": "semver"
          },
          {
            "version": "5.15.224",
            "status": "unaffected",
            "lessThanOrEqual": "5.15.*",
            "versionType": "semver"
          },
          {
            "version": "6.1.191",
            "status": "unaffected",
            "lessThanOrEqual": "6.1.*",
            "versionType": "semver"
          },
          {
            "version": "6.6.161",
            "status": "unaffected",
            "lessThanOrEqual": "6.6.*",
            "versionType": "semver"
          },
          {
            "version": "6.12.115",
            "status": "unaffected",
            "lessThanOrEqual": "6.12.*",
            "versionType": "semver"
          },
          {
            "version": "6.18.60",
            "status": "unaffected",
            "lessThanOrEqual": "6.18.*",
            "versionType": "semver"
          },
          {
            "version": "7.2.14",
            "status": "unaffected",
            "lessThanOrEqual": "7.2.*",
            "versionType": "semver"
          },
          {
            "version": "7.3.1",
            "status": "unaffected",
            "lessThanOrEqual": "7.3.*",
            "versionType": "semver"
          },
          {
            "version": "7.4-rc1",
            "status": "unaffected",
            "lessThanOrEqual": "*",
            "versionType": "original_commit_for_fix"
          }
        ],
        "defaultStatus": "affected",
        "cpes": [],
        "source": "Linux",
        "url": "https://www.cve.org/CVERecord?id=CVE-2026-99236"
      }
    ]
    References changed

    before

    [
      "https://git.kernel.org/stable/c/4a1a6d35359991c5d47f4bf101cfbe1475c94093",
      "https://git.kernel.org/stable/c/2a98f5d4913ec081e08e1075512cb7ec313d9f72",
      "https://git.kernel.org/stable/c/15ff3cc7f2beecc3f95d66358f20ad7b057466aa",
      "https://git.kernel.org/stable/c/b205ff58e02922ac324f931cf9eb238a3acdb048",
      "https://git.kernel.org/stable/c/5a999b5a16530898f0dbe5f8c50fd45ea72e110b",
      "https://git.kernel.org/stable/c/1008e9e0b8280d47f1ab5e9c113f666a023a9697",
      "https://git.kernel.org/stable/c/64993d970dde2a2da353e9e99595a4fa88ec27d9",
      "https://git.kernel.org/stable/c/5bcdf3c18c3471122ee9652b0e2f5cdb718d9a46"
    ]

    after

    [
      "https://git.kernel.org/stable/c/4a1a6d35359991c5d47f4bf101cfbe1475c94093",
      "https://git.kernel.org/stable/c/2a98f5d4913ec081e08e1075512cb7ec313d9f72",
      "https://git.kernel.org/stable/c/15ff3cc7f2beecc3f95d66358f20ad7b057466aa",
      "https://git.kernel.org/stable/c/b205ff58e02922ac324f931cf9eb238a3acdb048",
      "https://git.kernel.org/stable/c/5a999b5a16530898f0dbe5f8c50fd45ea72e110b",
      "https://git.kernel.org/stable/c/1008e9e0b8280d47f1ab5e9c113f666a023a9697",
      "https://git.kernel.org/stable/c/64993d970dde2a2da353e9e99595a4fa88ec27d9",
      "https://git.kernel.org/stable/c/5bcdf3c18c3471122ee9652b0e2f5cdb718d9a46",
      "https://git.kernel.org/stable/c/1fdc4164e488916402badddbb1f51e9380dabb91"
    ]
    Environment requirements changed

    before

    [
      {
        "source": "Linux",
        "statements": [
          {
            "nodes": [
              {
                "operator": "OR",
                "negate": false,
                "cpeMatch": [
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "5.10.273"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "5.15.224"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "6.1.191"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "6.6.161"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "6.12.115"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "6.18.60"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "7.2.14"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "7.3.1"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]

    after

    [
      {
        "source": "Linux",
        "statements": [
          {
            "nodes": [
              {
                "operator": "OR",
                "negate": false,
                "cpeMatch": [
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "5.10.273"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "5.15.224"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "6.1.191"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "6.6.161"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "6.12.115"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "6.18.60"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "7.2.14"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "7.3.1"
                  },
                  {
                    "vulnerable": true,
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "versionStartIncluding": "4.17",
                    "versionEndExcluding": "7.4-rc1"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]

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

Showing up to 50 most recent observed changes.