CVE-2026-46182: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: cebdb522fd3edd1fe05f7b4a74a27da7dd0f8d86 преди 0479b6e9f999cc1cbad7d9f09f574fc387e605d5; cebdb522fd3edd1fe05f7b4a74a27da7dd0f8d86 преди f88f8e4485b437e0a2f96a7ff1f88aa22d925659; cebdb522fd3edd1fe05f7b4a74a27da7dd0f8d86 преди cefeed44296261173a806bef988b26bc565da4be
• Linux Linux: 6.18; преди 6.18; 6.18.30 до 6.18.*; 7.0.7 до 7.0.*; от 7.1 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-46182
• https://nvd.nist.gov/vuln/detail/CVE-2026-46182
• https://git.kernel.org/stable/c/0479b6e9f999cc1cbad7d9f09f574fc387e605d5
• https://git.kernel.org/stable/c/f88f8e4485b437e0a2f96a7ff1f88aa22d925659
• https://git.kernel.org/stable/c/cefeed44296261173a806bef988b26bc565da4be