Bug 2426211 (CVE-2023-54307)

Summary: CVE-2023-54307 kernel: ptp_qoriq: fix memory leak in probe()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-12-30 13:16:44 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ptp_qoriq: fix memory leak in probe()

Smatch complains that:
drivers/ptp/ptp_qoriq.c ptp_qoriq_probe()
warn: 'base' from ioremap() not released.

Fix this by revising the parameter from 'ptp_qoriq->base' to 'base'.
This is only a bug if ptp_qoriq_init() returns on the
first -ENODEV error path.
For other error paths ptp_qoriq->base and base are the same.
And this change makes the code more readable.
Comment 1 Alexander B 2025-12-31 01:10:14 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123034-CVE-2023-54307-1ddf@gregkh/T