CVE - CVE-2024-58000

CVE-ID
CVE-2024-58000	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: io_uring: prevent reg-wait speculations With *ENTER_EXT_ARG_REG instead of passing a user pointer with arguments for the waiting loop the user can specify an offset into a pre-mapped region of memory, in which case the [offset, offset + sizeof(io_uring_reg_wait)) will be intepreted as the argument. As we address a kernel array using a user given index, it'd be a subject to speculation type of exploits. Use array_index_nospec() to prevent that. Make sure to pass not the full region size but truncate by the maximum offset allowed considering the structure size.
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/29b95ac917927ce9f95bf38797e16333ecb489b1 URL:https://git.kernel.org/stable/c/29b95ac917927ce9f95bf38797e16333ecb489b1 MISC:https://git.kernel.org/stable/c/2a6de94df7bfa76d9850443547e7b3333f63a16a URL:https://git.kernel.org/stable/c/2a6de94df7bfa76d9850443547e7b3333f63a16a
Assigning CNA
kernel.org
Date Record Created
20250227	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 (20250227)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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