CVE-2023-53848 Details
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid5-cache: fix a deadlock in r5l_exit_log() Commit b13015af94cf ("md/raid5-cache: Clear conf->log after finishing work") introduce a new problem: // caller hold reconfig_mutex r5l_exit_log flush_work(&log->disable_writeback_work) r5c_disable_writeback_async wait_event /* * conf->log is not NULL, and mddev_trylock() * will fail, wait_event() can never pass. */ conf->log = NULL Fix this problem by setting 'config->log' to NULL before wake_up() as it used to be, so that wait_event() from r5c_disable_writeback_async() can exist. In the meantime, move forward md_unregister_thread() so that null-ptr-deref this commit fixed can still be fixed.
A deadlock vulnerability has been identified in the Linux kernel's RAID 5 cache management. This issue arises in the 'r5l_exit_log' function, where a newly introduced commit inadvertently creates a deadlock scenario. The problem occurs because the function attempts to clear a log reference while holding a mutex, preventing the associated wait event from being processed. As a result, the function can become stuck, unable to complete its operation. This vulnerability affects the Linux kernel stable tree.
The vulnerability has been addressed in the Linux kernel. Users can apply the latest patches available in the Linux kernel stable tree to resolve this issue.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Dec 9, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/71cf23271f015a57038bdc4669952096f9fe5500 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/a705b11b358dee677aad80630e7608b2d5f56691 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/ac9e103f282a7854f3274ef5ff0742fbbe8d7d6b | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/c406984738215dc20ac2dc63e49d70f20797730e | kernel.org | Source CodeVendor |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Linux kernel | All versions |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Dec 9, 2025 | New CVE Received | kernel.org |