CVE - CVE-2024-41051

CVE-ID
CVE-2024-41051	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: cachefiles: wait for ondemand_object_worker to finish when dropping object When queuing ondemand_object_worker() to re-open the object, cachefiles_object is not pinned. The cachefiles_object may be freed when the pending read request is completed intentionally and the related erofs is umounted. If ondemand_object_worker() runs after the object is freed, it will incur use-after-free problem as shown below. process A processs B process C process D cachefiles_ondemand_send_req() // send a read req X // wait for its completion // close ondemand fd cachefiles_ondemand_fd_release() // set object as CLOSE cachefiles_ondemand_daemon_read() // set object as REOPENING queue_work(fscache_wq, &info->ondemand_work) // close /dev/cachefiles cachefiles_daemon_release cachefiles_flush_reqs complete(&req->done) // read req X is completed // umount the erofs fs cachefiles_put_object() // object will be freed cachefiles_ondemand_deinit_obj_info() kmem_cache_free(object) // both info and object are freed ondemand_object_worker() When dropping an object, it is no longer necessary to reopen the object, so use cancel_work_sync() to cancel or wait for ondemand_object_worker() to finish.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/12e009d60852f7bce0afc373ca0b320f14150418 URL:https://git.kernel.org/stable/c/12e009d60852f7bce0afc373ca0b320f14150418 MISC:https://git.kernel.org/stable/c/b26525b2183632f16a3a4108fe6a4bfa8afac6ed URL:https://git.kernel.org/stable/c/b26525b2183632f16a3a4108fe6a4bfa8afac6ed MISC:https://git.kernel.org/stable/c/d3179bae72b1b5e555ba839d6d9f40a350a4d78a URL:https://git.kernel.org/stable/c/d3179bae72b1b5e555ba839d6d9f40a350a4d78a MISC:https://git.kernel.org/stable/c/ec9289369259d982e735a71437e32e6b4035290c URL:https://git.kernel.org/stable/c/ec9289369259d982e735a71437e32e6b4035290c
Assigning CNA
kernel.org
Date Record Created
20240712	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240712)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)