Home/CVE/In the Linux kernel, the following vulnerability has been resolved: kexec: derive purgatory entry from symbol kexec_lo
CVE

CVE-2026-43289

In the Linux kernel, the following vulnerability has been resolved: kexec: derive purgatory entry from symbol kexec_lo

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 [me@linux.beauty: move helper to avoid forward declaration, per Baoquan].

MEDIUM · CVSS 5.5 EPSS 0.00013
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Affected Products & Versions

11
linux kernel>= 4.19.287 and < 4.20
linux kernel>= 5.4.248 and < 5.5
linux kernel>= 5.10.185 and < 5.10.252
linux kernel>= 5.15.118 and < 5.15.202
linux kernel>= 6.1.35 and < 6.1.165
linux kernel>= 6.3.9 and < 6.4
linux kernel>= 6.4.1 and < 6.6.128
linux kernel>= 6.7 and < 6.12.75
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Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 May 2026 · 02:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://git.kernel.org/stable/c/027797595a108726f4a0a45d225f603b0ffbd22bPatch
https://git.kernel.org/stable/c/1737d37ae1d2814e6cf0a1af87af3d41f0812b95Patch
https://git.kernel.org/stable/c/36eb314184a0ae74dd42914b47d2b9fc43be8034Patch
https://git.kernel.org/stable/c/480e1d5c64bb14441f79f2eb9421d5e26f91ea3dPatch
https://git.kernel.org/stable/c/5226570bd252cea2e805a161cb0f75c204c3108aPatch
https://git.kernel.org/stable/c/875355152b33436907c2a6d2ffad1431fa86c62bPatch
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