CVE - CVE-2024-50058

CVE-ID
CVE-2024-50058	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: serial: protect uart_port_dtr_rts() in uart_shutdown() too Commit af224ca2df29 (serial: core: Prevent unsafe uart port access, part 3) added few uport == NULL checks. It added one to uart_shutdown(), so the commit assumes, uport can be NULL in there. But right after that protection, there is an unprotected "uart_port_dtr_rts(uport, false);" call. That is invoked only if HUPCL is set, so I assume that is the reason why we do not see lots of these reports. Or it cannot be NULL at this point at all for some reason :P. Until the above is investigated, stay on the safe side and move this dereference to the if too. I got this inconsistency from Coverity under CID 1585130. Thanks.
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/2fe399bb8efd0d325ab1138cf8e3ecf23a39e96d URL:https://git.kernel.org/stable/c/2fe399bb8efd0d325ab1138cf8e3ecf23a39e96d MISC:https://git.kernel.org/stable/c/399927f0f875b93f3d5a0336d382ba48b8671eb2 URL:https://git.kernel.org/stable/c/399927f0f875b93f3d5a0336d382ba48b8671eb2 MISC:https://git.kernel.org/stable/c/602babaa84d627923713acaf5f7e9a4369e77473 URL:https://git.kernel.org/stable/c/602babaa84d627923713acaf5f7e9a4369e77473 MISC:https://git.kernel.org/stable/c/76ed24a34223bb2c6b6162e1d8389ec4e602a290 URL:https://git.kernel.org/stable/c/76ed24a34223bb2c6b6162e1d8389ec4e602a290 MISC:https://git.kernel.org/stable/c/d7b5876a6e74cdf8468a478be6b23f2f5464ac7a URL:https://git.kernel.org/stable/c/d7b5876a6e74cdf8468a478be6b23f2f5464ac7a MISC:https://git.kernel.org/stable/c/e418d91195d29d5f9c9685ff309b92b04b41dc40 URL:https://git.kernel.org/stable/c/e418d91195d29d5f9c9685ff309b92b04b41dc40
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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