Bug 2367591 (CVE-2025-37974)

Summary: CVE-2025-37974 kernel: s390/pci: Fix missing check for zpci_create_device() error return
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
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-05-20 17:02:19 UTC 
In the Linux kernel, the following vulnerability has been resolved:

s390/pci: Fix missing check for zpci_create_device() error return

The zpci_create_device() function returns an error pointer that needs to
be checked before dereferencing it as a struct zpci_dev pointer. Add the
missing check in __clp_add() where it was missed when adding the
scan_list in the fixed commit. Simply not adding the device to the scan
list results in the previous behavior.
Comment 1 Jon Moroney 2025-05-21 03:00:59 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025052046-CVE-2025-37974-adfa@gregkh/T