Bug 2323939 (CVE-2024-50097)

Summary: CVE-2024-50097 kernel: net: fec: don't save PTP state if PTP is unsupported
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Bug Depends On: 2324018    
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Description OSIDB Bzimport 2024-11-05 18:03:28 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: fec: don't save PTP state if PTP is unsupported

Some platforms (such as i.MX25 and i.MX27) do not support PTP, so on
these platforms fec_ptp_init() is not called and the related members
in fep are not initialized. However, fec_ptp_save_state() is called
unconditionally, which causes the kernel to panic. Therefore, add a
condition so that fec_ptp_save_state() is not called if PTP is not
supported.
Comment 1 Robb Gatica 2024-11-05 21:02:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024110552-CVE-2024-50097-39b6@gregkh/T