CVE-2026-46182 | BDVDB-2026-336302 Detail

Description#

In the Linux kernel, the following vulnerability has been resolved: pseries/papr-hvpipe: Prevent kernel stack memory leak to userspace The hdr variable is allocated on the stack and only hdr.version and hdr.flags are initialized explicitly. Because the struct papr_hvpipe_hdr contains reserved padding bytes (reserved[3] and reserved2[40]), these could leak the uninitialized bytes to userspace after copy_to_user(). This patch fixes that by initializing the whole struct to 0.

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History#

1. Version 12026-05-28Record published in the CVE List.
2. Version 22026-11-06Most recent update recorded in the CVE List.