CVE-2026-72030
ata: libata-core: Reject an invalid concurrent positioning ranges count
Description
In the Linux kernel, the following vulnerability has been resolved: ata: libata-core: Reject an invalid concurrent positioning ranges count ata_dev_config_cpr() takes the number of range descriptors from buf[0] of the concurrent positioning ranges log (up to 255), which the device reports independently of the log size in the GPL directory. The count is then walked at a fixed 32-byte stride in two places with no bound: the log read here, and the INQUIRY VPD page B9h emitter, which writes one descriptor per range into the fixed 2048-byte ata_scsi_rbuf. A device reporting a count larger than its own log overflows the read buffer (up to 7704 bytes past a 512-byte slab), and a count above 62 overflows the response buffer on the emit side. Bound the count once, on probe, against both the log the device returned and the number of descriptors the VPD B9h response buffer can hold (ATA_DEV_MAX_CPR, derived from the rbuf size). Reject an out-of-range count with a warning; this keeps the emitter in bounds with no separate change there.
INFO
Published Date :
Aug. 15, 2026, 6:21 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel to the latest stable version.
- Reboot the system after the update.
- Verify the system stability and security.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72030.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72030 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72030
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72030 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72030 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': '4cb4b4dd8853c4ab3057efe238b2c34277772176', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': 'b1607f0ee5f5e53e0aa66f41794085b7cc98f5d1', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': '4c1e8ccd8655ee8cf1bcb1b7dfee72c9fa941fd4', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': 'd43efd1b5d976203e6f1ef26f67e8b1a7bc2751b', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': '533a0b940f901c15e5cbbd4b5d66e871c209e8ce', 'versionType': 'git'}], 'programFiles': ['drivers/ata/libata-core.c', 'drivers/ata/libata-scsi.c', 'drivers/ata/libata.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/ata/libata-core.c', 'drivers/ata/libata-scsi.c', 'drivers/ata/libata.h'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': '4cb4b4dd8853c4ab3057efe238b2c34277772176', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': 'b1607f0ee5f5e53e0aa66f41794085b7cc98f5d1', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': '4c1e8ccd8655ee8cf1bcb1b7dfee72c9fa941fd4', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': 'd43efd1b5d976203e6f1ef26f67e8b1a7bc2751b', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': '533a0b940f901c15e5cbbd4b5d66e871c209e8ce', 'versionType': 'git'}], 'programFiles': ['drivers/ata/libata-core.c', 'drivers/ata/libata-scsi.c', 'drivers/ata/libata.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/ata/libata-core.c', 'drivers/ata/libata-scsi.c', 'drivers/ata/libata.h'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': '4cb4b4dd8853c4ab3057efe238b2c34277772176', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': 'b1607f0ee5f5e53e0aa66f41794085b7cc98f5d1', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': '4c1e8ccd8655ee8cf1bcb1b7dfee72c9fa941fd4', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': 'd43efd1b5d976203e6f1ef26f67e8b1a7bc2751b', 'versionType': 'git'}, {'status': 'affected', 'version': 'fe22e1c2f705676a705d821301fc52eecc2fe055', 'lessThan': '533a0b940f901c15e5cbbd4b5d66e871c209e8ce', 'versionType': 'git'}], 'programFiles': ['drivers/ata/libata-core.c', 'drivers/ata/libata-scsi.c', 'drivers/ata/libata.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/ata/libata-core.c', 'drivers/ata/libata-scsi.c', 'drivers/ata/libata.h'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: ata: libata-core: Reject an invalid concurrent positioning ranges count ata_dev_config_cpr() takes the number of range descriptors from buf[0] of the concurrent positioning ranges log (up to 255), which the device reports independently of the log size in the GPL directory. The count is then walked at a fixed 32-byte stride in two places with no bound: the log read here, and the INQUIRY VPD page B9h emitter, which writes one descriptor per range into the fixed 2048-byte ata_scsi_rbuf. A device reporting a count larger than its own log overflows the read buffer (up to 7704 bytes past a 512-byte slab), and a count above 62 overflows the response buffer on the emit side. Bound the count once, on probe, against both the log the device returned and the number of descriptors the VPD B9h response buffer can hold (ATA_DEV_MAX_CPR, derived from the rbuf size). Reject an out-of-range count with a warning; this keeps the emitter in bounds with no separate change there. Added Reference https://git.kernel.org/stable/c/4c1e8ccd8655ee8cf1bcb1b7dfee72c9fa941fd4 Added Reference https://git.kernel.org/stable/c/4cb4b4dd8853c4ab3057efe238b2c34277772176 Added Reference https://git.kernel.org/stable/c/533a0b940f901c15e5cbbd4b5d66e871c209e8ce Added Reference https://git.kernel.org/stable/c/b1607f0ee5f5e53e0aa66f41794085b7cc98f5d1 Added Reference https://git.kernel.org/stable/c/d43efd1b5d976203e6f1ef26f67e8b1a7bc2751b