CVE-2023-53848
- Source
- https://nvd.nist.gov/vuln/detail/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
- Published
- 2025-12-09T01:30:11.895Z
- Modified
- 2025-12-09T02:34:56.282797Z
- 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 r5lexitlog()
Commit b13015af94cf ("md/raid5-cache: Clear conf->log after finishing work") introduce a new problem:
// caller hold reconfigmutex r5lexitlog flushwork(&log->disablewritebackwork) r5cdisablewritebackasync waitevent /* * conf->log is not NULL, and mddevtrylock() * will fail, waitevent() can never pass. */ conf->log = NULL
Fix this problem by setting 'config->log' to NULL before wakeup() as it used to be, so that waitevent() from r5cdisablewritebackasync() can exist. In the meantime, move forward mdunregister_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
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/71cf23271f015a57038bdc4669952096f9fe5500
- https://git.kernel.org/stable/c/a705b11b358dee677aad80630e7608b2d5f56691
- https://git.kernel.org/stable/c/ac9e103f282a7854f3274ef5ff0742fbbe8d7d6b
- https://git.kernel.org/stable/c/c406984738215dc20ac2dc63e49d70f20797730e
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53848.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-53848
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
-
Introducedb13015af94cf405f73ff64ce0797269554020c37Fixedac9e103f282a7854f3274ef5ff0742fbbe8d7d6bFixed71cf23271f015a57038bdc4669952096f9fe5500Fixedc406984738215dc20ac2dc63e49d70f20797730eFixeda705b11b358dee677aad80630e7608b2d5f56691