CVE-2026-72458 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL pointer dereference in unpack_pdb pdb->dfa could be NULL if unpack_dfa fails, causing a NULL pointer dereference.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Linux	Linux Kernel

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/73d86ca950b80cd39ca948e2c518d135bf2308c8
https://git.kernel.org/stable/c/7681ca43d2b1c776e62fe77e3167835fb1ab8319
https://git.kernel.org/stable/c/fbfdb5a94a48797bea232791e24c38f3aa3063c8

History

Sat, 15 Aug 2026 06:00:00 +0000

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL pointer dereference in unpack_pdb pdb->dfa could be NULL if unpack_dfa fails, causing a NULL pointer dereference.
Title		apparmor: fix NULL pointer dereference in unpack_pdb
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/73d86ca950b80cd39ca948e2c518d135bf2308c8 https://git.kernel.org/stable/c/7681ca43d2b1c776e62fe77e3167835fb1ab8319 https://git.kernel.org/stable/c/fbfdb5a94a48797bea232791e24c38f3aa3063c8

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-08-15T05:57:04.179Z

Updated: 2026-08-15T05:57:04.179Z

Reserved: 2026-08-09T03:40:39.932Z

Link: CVE-2026-72458

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-15T06:22:19.783

Modified: 2026-08-15T06:22:19.783

Link: CVE-2026-72458

Redhat

No data.

OpenCVE Enrichment

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72458", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.932Z", "datePublished": "2026-08-15T05:57:04.179Z", "dateUpdated": "2026-08-15T05:57:04.179Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:57:04.179Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix NULL pointer dereference in unpack_pdb\n\npdb->dfa could be NULL if unpack_dfa fails, causing a NULL pointer\ndereference."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/apparmor/policy_unpack.c"], "versions": [{"version": "2e12c5f060176ede209673e4f63ea5d0e3c5814c", "lessThan": "fbfdb5a94a48797bea232791e24c38f3aa3063c8", "status": "affected", "versionType": "git"}, {"version": "2e12c5f060176ede209673e4f63ea5d0e3c5814c", "lessThan": "73d86ca950b80cd39ca948e2c518d135bf2308c8", "status": "affected", "versionType": "git"}, {"version": "2e12c5f060176ede209673e4f63ea5d0e3c5814c", "lessThan": "7681ca43d2b1c776e62fe77e3167835fb1ab8319", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/apparmor/policy_unpack.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fbfdb5a94a48797bea232791e24c38f3aa3063c8"}, {"url": "https://git.kernel.org/stable/c/73d86ca950b80cd39ca948e2c518d135bf2308c8"}, {"url": "https://git.kernel.org/stable/c/7681ca43d2b1c776e62fe77e3167835fb1ab8319"}], "title": "apparmor: fix NULL pointer dereference in unpack_pdb", "x_generator": {"engine": "bippy-1.2.0"}}}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["security/apparmor/policy_unpack.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fbfdb5a94a48797bea232791e24c38f3aa3063c8", "status": "affected", "version": "2e12c5f060176ede209673e4f63ea5d0e3c5814c", "versionType": "git"}, {"lessThan": "73d86ca950b80cd39ca948e2c518d135bf2308c8", "status": "affected", "version": "2e12c5f060176ede209673e4f63ea5d0e3c5814c", "versionType": "git"}, {"lessThan": "7681ca43d2b1c776e62fe77e3167835fb1ab8319", "status": "affected", "version": "2e12c5f060176ede209673e4f63ea5d0e3c5814c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["security/apparmor/policy_unpack.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.17"}, {"lessThan": "6.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix NULL pointer dereference in unpack_pdb\n\npdb->dfa could be NULL if unpack_dfa fails, causing a NULL pointer\ndereference."}], "id": "CVE-2026-72458", "lastModified": "2026-08-15T06:22:19.783", "metrics": {}, "published": "2026-08-15T06:22:19.783", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/73d86ca950b80cd39ca948e2c518d135bf2308c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7681ca43d2b1c776e62fe77e3167835fb1ab8319"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fbfdb5a94a48797bea232791e24c38f3aa3063c8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}