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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-43289 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: kexec: derive purgatory entry from symbol kexec_load_purgatory() derives image->start by locating e_entry inside an SHF_EXECINSTR section. If the purgatory object contains multiple executable sections with overlapping sh_addr, the entrypoint check can match more than once and trigger a WARN. Derive the entry section from the purgatory_start symbol when present and compute image->start from its final placement. Keep the existing e_entry fallback for purgatories that do not expose the symbol. WARNING: kernel/kexec_file.c:1009 at kexec_load_purgatory+0x395/0x3c0, CPU#10: kexec/1784 Call Trace: <TASK> bzImage64_load+0x133/0xa00 __do_sys_kexec_file_load+0x2b3/0x5c0 do_syscall_64+0x81/0x610 entry_SYSCALL_64_after_hwframe+0x76/0x7e [[email protected]: move helper to avoid forward declaration, per Baoquan]


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/027797595a108726f4a0a45d225f603b0ffbd22b kernel.org Patch 
https://git.kernel.org/stable/c/1737d37ae1d2814e6cf0a1af87af3d41f0812b95 kernel.org Patch 
https://git.kernel.org/stable/c/36eb314184a0ae74dd42914b47d2b9fc43be8034 kernel.org Patch 
https://git.kernel.org/stable/c/480e1d5c64bb14441f79f2eb9421d5e26f91ea3d kernel.org Patch 
https://git.kernel.org/stable/c/5226570bd252cea2e805a161cb0f75c204c3108a kernel.org Patch 
https://git.kernel.org/stable/c/875355152b33436907c2a6d2ffad1431fa86c62b kernel.org Patch 
https://git.kernel.org/stable/c/cfccd3b8c51bc57a8a6fcb2fd30453afae5bc0d2 kernel.org Patch 
https://git.kernel.org/stable/c/f736032c638a33a243e9126e617788f763d648f9 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-43289
NVD Published Date:
05/08/2026
NVD Last Modified:
05/15/2026
Source:
kernel.org