CVE-2026-53063
dm cache: fix write hang in passthrough mode
Description
In the Linux kernel, the following vulnerability has been resolved: dm cache: fix write hang in passthrough mode The invalidate_remove() function has incomplete logic for handling write hit bios after cache invalidation. It sets up the remapping for the overwrite_bio but then drops it immediately without submission, causing write operations to hang. Fix by adding a new invalidate_committed() continuation that submits the remapped writes to the cache origin after metadata commit completes, while using the overwrite_endio hook to ensure proper completion sequencing. This maintains existing coherency. Also improve error handling in invalidate_complete() to preserve the original error status instead of using bio_io_error() unconditionally.
INFO
Published Date :
June 24, 2026, 5:17 p.m.
Last Modified :
July 21, 2026, 5:36 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Apply the provided Linux kernel patch.
- Update the kernel to include the fix.
- Test for proper write operation completion.
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-2026-53063.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53063 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-2026-53063
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-2026-53063 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53063 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.
-
Initial Analysis by [email protected]
Jul. 21, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.141 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.91 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.10 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.12 up to (excluding) 6.1.175 Added Reference Type kernel.org: https://git.kernel.org/stable/c/05798d091ebcfb6d68228890e593f209e8ac940d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4ca8b8bd952df7c3ccdc68af9bd3419d0839a04b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/64d6519b00be4116d365bd31f33a5e5ce2944c1a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9fa18d0b981776b190ca4632942a7c2174052b78 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b8ace9e96983abb20ccf39edce8a60f1bb0b83d8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ecb10c193cbebf5e6984246a9b4ff1f95d45ed87 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 24, 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': 'b29d4986d0da1a27cd35917cdb433672f5c95d7f', 'lessThan': '9fa18d0b981776b190ca4632942a7c2174052b78', 'versionType': 'git'}, {'status': 'affected', 'version': 'b29d4986d0da1a27cd35917cdb433672f5c95d7f', 'lessThan': 'ecb10c193cbebf5e6984246a9b4ff1f95d45ed87', 'versionType': 'git'}, {'status': 'affected', 'version': 'b29d4986d0da1a27cd35917cdb433672f5c95d7f', 'lessThan': '64d6519b00be4116d365bd31f33a5e5ce2944c1a', 'versionType': 'git'}, {'status': 'affected', 'version': 'b29d4986d0da1a27cd35917cdb433672f5c95d7f', 'lessThan': 'b8ace9e96983abb20ccf39edce8a60f1bb0b83d8', 'versionType': 'git'}, {'status': 'affected', 'version': 'b29d4986d0da1a27cd35917cdb433672f5c95d7f', 'lessThan': '05798d091ebcfb6d68228890e593f209e8ac940d', 'versionType': 'git'}, {'status': 'affected', 'version': 'b29d4986d0da1a27cd35917cdb433672f5c95d7f', 'lessThan': '4ca8b8bd952df7c3ccdc68af9bd3419d0839a04b', 'versionType': 'git'}], 'programFiles': ['drivers/md/dm-cache-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': '4.12'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.12', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.175', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.141', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.91', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.33', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.10', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/md/dm-cache-target.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: dm cache: fix write hang in passthrough mode The invalidate_remove() function has incomplete logic for handling write hit bios after cache invalidation. It sets up the remapping for the overwrite_bio but then drops it immediately without submission, causing write operations to hang. Fix by adding a new invalidate_committed() continuation that submits the remapped writes to the cache origin after metadata commit completes, while using the overwrite_endio hook to ensure proper completion sequencing. This maintains existing coherency. Also improve error handling in invalidate_complete() to preserve the original error status instead of using bio_io_error() unconditionally. Added Reference https://git.kernel.org/stable/c/05798d091ebcfb6d68228890e593f209e8ac940d Added Reference https://git.kernel.org/stable/c/4ca8b8bd952df7c3ccdc68af9bd3419d0839a04b Added Reference https://git.kernel.org/stable/c/64d6519b00be4116d365bd31f33a5e5ce2944c1a Added Reference https://git.kernel.org/stable/c/9fa18d0b981776b190ca4632942a7c2174052b78 Added Reference https://git.kernel.org/stable/c/b8ace9e96983abb20ccf39edce8a60f1bb0b83d8 Added Reference https://git.kernel.org/stable/c/ecb10c193cbebf5e6984246a9b4ff1f95d45ed87