CVE-2026-45921
In the Linux kernel, the following vulnerability has been resolved: mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse() The function mtd_parser_tplink_safeloader_parse() allocates buf via mtd_parser_tplink_safeloader_read_table(). If the allocation for parts[idx].name fails inside the loop, the code jumps to the err_free label without freeing buf, leading to a memory leak. Fix this by freeing the temporary buffer buf in the err_free label. Compile tested only. Issue found using a prototype static analysis tool and code review.
Affected versions
Linux kernel versions
6.2
and later are affected. Fixed in
6.6.128,
6.12.75,
6.18.14,
6.19.4,
7.0
and their respective stable series.
References
The following references provide additional information about CVE-2026-45921 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/0f5e62ea5c43146eacdc6861cb1022ffae1b79bc
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PatchKernel patch commithttps://git.kernel.org/stable/c/971e9c53aed82f17a9c6a65daa4e21cc15eba5b1
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PatchKernel patch commithttps://git.kernel.org/stable/c/980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b
Frequently asked questions
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What is CVE-2026-45921?
CVE-2026-45921 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.2 onward and has been patched in 6.6.128, 6.12.75, 6.18.14 and others. CVE-2026-45921 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-45921?
Yes — CVE-2026-45921 has been patched. Fixed versions include 6.6.128, 6.12.75, 6.18.14 and others. If you are running Linux kernel 6.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-45921 actively exploited?
No — CVE-2026-45921 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.