Bug 2348610 (CVE-2025-21769)

Summary: CVE-2025-21769 kernel: ptp: vmclock: Add .owner to vmclock_miscdev_fops
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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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 2025-02-27 03:05:01 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ptp: vmclock: Add .owner to vmclock_miscdev_fops

Without the .owner field, the module can be unloaded while /dev/vmclock0
is open, leading to an oops.
Comment 1 Michal Findra 2025-02-27 19:36:09 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022605-CVE-2025-21769-c349@gregkh/T