CVE - CVE-2023-52989

CVE-ID
CVE-2023-52989	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: firewire: fix memory leak for payload of request subaction to IEC 61883-1 FCP region This patch is fix for Linux kernel v2.6.33 or later. For request subaction to IEC 61883-1 FCP region, Linux FireWire subsystem have had an issue of use-after-free. The subsystem allows multiple user space listeners to the region, while data of the payload was likely released before the listeners execute read(2) to access to it for copying to user space. The issue was fixed by a commit 281e20323ab7 ("firewire: core: fix use-after-free regression in FCP handler"). The object of payload is duplicated in kernel space for each listener. When the listener executes ioctl(2) with FW_CDEV_IOC_SEND_RESPONSE request, the object is going to be released. However, it causes memory leak since the commit relies on call of release_request() in drivers/firewire/core-cdev.c. Against the expectation, the function is never called due to the design of release_client_resource(). The function delegates release task to caller when called with non-NULL fourth argument. The implementation of ioctl_send_response() is the case. It should release the object explicitly. This commit fixes the bug.
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/356ff89acdbe6a66019154bc7eb2d300f5b15103 URL:https://git.kernel.org/stable/c/356ff89acdbe6a66019154bc7eb2d300f5b15103 MISC:https://git.kernel.org/stable/c/531390a243ef47448f8bad01c186c2787666bf4d URL:https://git.kernel.org/stable/c/531390a243ef47448f8bad01c186c2787666bf4d MISC:https://git.kernel.org/stable/c/53785fd9b315583cf029e39f72b73d23704a2253 URL:https://git.kernel.org/stable/c/53785fd9b315583cf029e39f72b73d23704a2253 MISC:https://git.kernel.org/stable/c/5f4543c9382ae2d5062f6aa4fecae0c9258d0b0e URL:https://git.kernel.org/stable/c/5f4543c9382ae2d5062f6aa4fecae0c9258d0b0e MISC:https://git.kernel.org/stable/c/b2cd3947d116bb9ba7ff097b5fc747a8956764db URL:https://git.kernel.org/stable/c/b2cd3947d116bb9ba7ff097b5fc747a8956764db MISC:https://git.kernel.org/stable/c/c8bdc88216f09cb7387fedbdf613524367328616 URL:https://git.kernel.org/stable/c/c8bdc88216f09cb7387fedbdf613524367328616 MISC:https://git.kernel.org/stable/c/d5a2dcee53fa6e6e2822f93cb3f1b0cd23163bee URL:https://git.kernel.org/stable/c/d5a2dcee53fa6e6e2822f93cb3f1b0cd23163bee
Assigning CNA
kernel.org
Date Record Created
20250327	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 (20250327)
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)