CVE - CVE-2023-52837

CVE-ID
CVE-2023-52837	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: nbd: fix uaf in nbd_open Commit 4af5f2e03013 ("nbd: use blk_mq_alloc_disk and blk_cleanup_disk") cleans up disk by blk_cleanup_disk() and it won't set disk->private_data as NULL as before. UAF may be triggered in nbd_open() if someone tries to open nbd device right after nbd_put() since nbd has been free in nbd_dev_remove(). Fix this by implementing ->free_disk and free private data in it.
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/327462725b0f759f093788dfbcb2f1fd132f956b URL:https://git.kernel.org/stable/c/327462725b0f759f093788dfbcb2f1fd132f956b MISC:https://git.kernel.org/stable/c/4e9b3ec84dc97909876641dad14e0a2300d6c2a3 URL:https://git.kernel.org/stable/c/4e9b3ec84dc97909876641dad14e0a2300d6c2a3 MISC:https://git.kernel.org/stable/c/56bd7901b5e9dbc9112036ea615ebcba1565fafe URL:https://git.kernel.org/stable/c/56bd7901b5e9dbc9112036ea615ebcba1565fafe MISC:https://git.kernel.org/stable/c/879947f4180bc6e83af64eb0515e0cf57fce15db URL:https://git.kernel.org/stable/c/879947f4180bc6e83af64eb0515e0cf57fce15db
Assigning CNA
kernel.org
Date Record Created
20240521	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 (20240521)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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