CVE - CVE-2024-50059

CVE-ID
CVE-2024-50059	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: ntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition In the switchtec_ntb_add function, it can call switchtec_ntb_init_sndev function, then &sndev->check_link_status_work is bound with check_link_status_work. switchtec_ntb_link_notification may be called to start the work. If we remove the module which will call switchtec_ntb_remove to make cleanup, it will free sndev through kfree(sndev), while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 \| check_link_status_work switchtec_ntb_remove \| kfree(sndev); \| \| if (sndev->link_force_down) \| // use sndev Fix it by ensuring that the work is canceled before proceeding with the cleanup in switchtec_ntb_remove.
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/177925d9c8715a897bb79eca62628862213ba956 URL:https://git.kernel.org/stable/c/177925d9c8715a897bb79eca62628862213ba956 MISC:https://git.kernel.org/stable/c/3ae45be8492460a35b5aebf6acac1f1d32708946 URL:https://git.kernel.org/stable/c/3ae45be8492460a35b5aebf6acac1f1d32708946 MISC:https://git.kernel.org/stable/c/92728fceefdaa2a0a3aae675f86193b006eeaa43 URL:https://git.kernel.org/stable/c/92728fceefdaa2a0a3aae675f86193b006eeaa43 MISC:https://git.kernel.org/stable/c/b650189687822b705711f0567a65a164a314d8df URL:https://git.kernel.org/stable/c/b650189687822b705711f0567a65a164a314d8df MISC:https://git.kernel.org/stable/c/e51aded92d42784313ba16c12f4f88cc4f973bbb URL:https://git.kernel.org/stable/c/e51aded92d42784313ba16c12f4f88cc4f973bbb MISC:https://git.kernel.org/stable/c/fa840ba4bd9f3bad7f104e5b32028ee73af8b3dd URL:https://git.kernel.org/stable/c/fa840ba4bd9f3bad7f104e5b32028ee73af8b3dd
Assigning CNA
kernel.org
Date Record Created
20241021	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 (20241021)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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