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8.8
HIGH CVSS 3.1
CVE-2026-72107
dm era: fix out-of-bounds memory access for non-zero start sector
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: dm era: fix out-of-bounds memory access for non-zero start sector dm-era tracks writes in target-relative blocks, but era_map() calculates the writeset block before applying the target offset. Tables with a non-zero start sector can therefore pass an absolute mapped-device block to metadata_current_marked(). If the absolute block is beyond the current writeset size, writeset_marked() tests past the end of the in-core bitset. KASAN reports this as a vmalloc-out-of-bounds access. Apply the target offset before calculating the era block so writeset lookups use the target-relative block number.

Details
INFO

Published Date :

Aug. 15, 2026, 6:21 a.m.

Last Modified :

Aug. 17, 2026, 6:18 a.m.

Remotely Exploit :

Yes !

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-72107 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Fix out-of-bounds memory access by applying target offset before calculating era block.
  • Apply target offset before calculating the era block.
  • Ensure writeset lookups use target-relative block numbers.
References
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-2026-72107.

URL Resource
https://git.kernel.org/stable/c/1fcb5e29dd7a5b85adb9d8b539911741d878e829
https://git.kernel.org/stable/c/7e1822f83c5a1ee7b4a19e98edde8770a10b4c71
https://git.kernel.org/stable/c/9946a7176bd8c25ddd6e5f1799c54e572ee6bf0f
https://git.kernel.org/stable/c/a868196f03c2b19418ae3d2b69e195d668a271e5
https://git.kernel.org/stable/c/bafe3e720cdac38cd7ea4eb7852a8f2dbe1bbfe6
https://git.kernel.org/stable/c/db5f9b4601f0012038e5a2628aedec2f47933380
https://git.kernel.org/stable/c/e3ffa8e492e5cdee62d916ee3e9244ccce2b73c5
https://git.kernel.org/stable/c/fe94a0b14010a3c267ff9a2508afb4f27ff1c5bf
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-72107 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-2026-72107 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-2026-72107 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-72107 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
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'fe94a0b14010a3c267ff9a2508afb4f27ff1c5bf', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'e3ffa8e492e5cdee62d916ee3e9244ccce2b73c5', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': '9946a7176bd8c25ddd6e5f1799c54e572ee6bf0f', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': '7e1822f83c5a1ee7b4a19e98edde8770a10b4c71', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'db5f9b4601f0012038e5a2628aedec2f47933380', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': '1fcb5e29dd7a5b85adb9d8b539911741d878e829', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'bafe3e720cdac38cd7ea4eb7852a8f2dbe1bbfe6', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'a868196f03c2b19418ae3d2b69e195d668a271e5', 'versionType': 'git'}], 'programFiles': ['drivers/md/dm-era-target.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/md/dm-era-target.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'fe94a0b14010a3c267ff9a2508afb4f27ff1c5bf', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'e3ffa8e492e5cdee62d916ee3e9244ccce2b73c5', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': '9946a7176bd8c25ddd6e5f1799c54e572ee6bf0f', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': '7e1822f83c5a1ee7b4a19e98edde8770a10b4c71', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'db5f9b4601f0012038e5a2628aedec2f47933380', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': '1fcb5e29dd7a5b85adb9d8b539911741d878e829', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'bafe3e720cdac38cd7ea4eb7852a8f2dbe1bbfe6', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'a868196f03c2b19418ae3d2b69e195d668a271e5', 'versionType': 'git'}], 'programFiles': ['drivers/md/dm-era-target.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', '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/md/dm-era-target.c'], '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': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'fe94a0b14010a3c267ff9a2508afb4f27ff1c5bf', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'e3ffa8e492e5cdee62d916ee3e9244ccce2b73c5', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': '9946a7176bd8c25ddd6e5f1799c54e572ee6bf0f', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': '7e1822f83c5a1ee7b4a19e98edde8770a10b4c71', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'db5f9b4601f0012038e5a2628aedec2f47933380', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': '1fcb5e29dd7a5b85adb9d8b539911741d878e829', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'bafe3e720cdac38cd7ea4eb7852a8f2dbe1bbfe6', 'versionType': 'git'}, {'status': 'affected', 'version': 'eec40579d84873dfb7021eb24c50360f073237c5', 'lessThan': 'a868196f03c2b19418ae3d2b69e195d668a271e5', 'versionType': 'git'}], 'programFiles': ['drivers/md/dm-era-target.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc3', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/md/dm-era-target.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: dm era: fix out-of-bounds memory access for non-zero start sector dm-era tracks writes in target-relative blocks, but era_map() calculates the writeset block before applying the target offset. Tables with a non-zero start sector can therefore pass an absolute mapped-device block to metadata_current_marked(). If the absolute block is beyond the current writeset size, writeset_marked() tests past the end of the in-core bitset. KASAN reports this as a vmalloc-out-of-bounds access. Apply the target offset before calculating the era block so writeset lookups use the target-relative block number.
    Added Reference https://git.kernel.org/stable/c/1fcb5e29dd7a5b85adb9d8b539911741d878e829
    Added Reference https://git.kernel.org/stable/c/7e1822f83c5a1ee7b4a19e98edde8770a10b4c71
    Added Reference https://git.kernel.org/stable/c/9946a7176bd8c25ddd6e5f1799c54e572ee6bf0f
    Added Reference https://git.kernel.org/stable/c/a868196f03c2b19418ae3d2b69e195d668a271e5
    Added Reference https://git.kernel.org/stable/c/bafe3e720cdac38cd7ea4eb7852a8f2dbe1bbfe6
    Added Reference https://git.kernel.org/stable/c/db5f9b4601f0012038e5a2628aedec2f47933380
    Added Reference https://git.kernel.org/stable/c/e3ffa8e492e5cdee62d916ee3e9244ccce2b73c5
    Added Reference https://git.kernel.org/stable/c/fe94a0b14010a3c267ff9a2508afb4f27ff1c5bf
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
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Scope
Confidentiality Impact
Integrity Impact
Availability Impact