CVE-2023-53848

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Source
https://cve.org/CVERecord?id=CVE-2023-53848
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53848.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-53848
Downstream
Related
Published
2025-12-09T01:30:11Z
Modified
2026-08-12T03:30:17Z
Summary
md/raid5-cache: fix a deadlock in r5l_exit_log()
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53848.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
b13015af94cf405f73ff64ce0797269554020c37
Fixed
ac9e103f282a7854f3274ef5ff0742fbbe8d7d6b
Fixed
71cf23271f015a57038bdc4669952096f9fe5500
Fixed
c406984738215dc20ac2dc63e49d70f20797730e
Fixed
a705b11b358dee677aad80630e7608b2d5f56691

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53848.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
6.1.53
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.4.16
Type
ECOSYSTEM
Events
Introduced
6.5.0
Fixed
6.5.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53848.json"