CVE-2026-53282: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Push kjump return address even for non-kjump kexec The version of purgatory code shipped by kexec-tools attempts to look above the top of its stack to find a return address for a kjump, even in a non-kjump kexec. After the commit in Fixes: the word above the stack might not be there, leading to a fault (which is at least now caught by my exception-handling code in kexec). That commit fixed things for the actual kjump path, but no longer "gratuitously" pushes the unused return address to the stack in the non-kjump path. Put that *back* in the non-kjump path, to prevent purgatory from crashing when trying to access it.

Засегнати продукти

• Linux Linux: 2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e преди b0bd7a850e1f082560959707dbf57b0402071646; 2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e преди 7dba9631faa2ee0785e8c2bf0e3d90a05f26dd8c; 2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e преди 786a45757dcdf8f2beb9d4a6db605db16c18b2b4
• Linux Linux: 6.14; преди 6.14; 6.18.33 до 6.18.*; 7.0.10 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-2026-53282
• https://nvd.nist.gov/vuln/detail/CVE-2026-53282
• https://git.kernel.org/stable/c/b0bd7a850e1f082560959707dbf57b0402071646
• https://git.kernel.org/stable/c/7dba9631faa2ee0785e8c2bf0e3d90a05f26dd8c
• https://git.kernel.org/stable/c/786a45757dcdf8f2beb9d4a6db605db16c18b2b4