CVE-2024-50058

MediumCVSS 5.5/10Last modified Oct 15, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= af224ca2df297440448b9d407d21b50982c6d532, < 2fe399bb8efd0d325ab1138cf8e3ecf23a39e96d; >= af224ca2df297440448b9d407d21b50982c6d532, < 399927f0f875b93f3d5a0336d382ba48b8671eb2; >= af224ca2df297440448b9d407d21b50982c6d532, < d7b5876a6e74cdf8468a478be6b23f2f5464ac7a; >= af224ca2df297440448b9d407d21b50982c6d532, < e418d91195d29d5f9c9685ff309b92b04b41dc40; >= af224ca2df297440448b9d407d21b50982c6d532, < 76ed24a34223bb2c6b6162e1d8389ec4e602a290; >= af224ca2df297440448b9d407d21b50982c6d532, < 602babaa84d627923713acaf5f7e9a4369e77473
LinuxLinux4.7
SiemensSIMATIC S7-1500 TM MFP - GNU/Linux subsystem< V1.1.1

References

Timeline

Published
Oct 21, 2024
Last modified
Oct 15, 2026
NVD status
Modified

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CVE-2024-50058: Medium severity, CVSS 5.5 | Vulnix