CVE•Published 2026-05-06•Modified 2026-07-15•0 articles on news•4 live references•NVD data
CVE-2026-43178Linux · Linux_kernel
Vulnerability data via NVD (ingested)
CVSS v3.1
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
3
Exploit Prediction Scoring System · top 97% of all CVEs
Description
In the Linux kernel, the following vulnerability has been resolved: procfs: fix possible double mmput() in do_procmap_query() When user provides incorrectly sized buffer for build ID for PROCMAP_QUERY we return with -ENAMETOOLONG error. After recent changes this condition happens later, after we unlocked mmap_lock/per-VMA lock and did mmput(), so original goto out is now wrong and will double-mmput() mm_struct. Fix by jumping further to clean up only vm_file and name_buf.
Timeline
Published 2026-05-06
Modified 2026-07-15
External references
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vuln:CVE-2026-43178Hosts Shodan has explicitly fingerprinted as vulnerable.
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os:"Linux Kernel"Hosts Shodan identified as running Linux Kernel.
More intel sources (5)
Shodan report
vuln:CVE-2026-43178Country / ASN / product breakdown for the vuln query.
Censys
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CVE-2026-43178Public source-code mentions — fast PoC discovery.
GitHub code
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Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-43178 on GitHub.
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