Bug 2457369 (CVE-2026-40200) - CVE-2026-40200 musl: musl libc: Arbitrary code execution and denial of service via stack-based memory corruption in qsort
Summary: CVE-2026-40200 musl: musl libc: Arbitrary code execution and denial of servic...
Keywords:
Status: NEW
Alias: CVE-2026-40200
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2457415 2457416 2457417
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-10 17:03 UTC by OSIDB Bzimport
Modified: 2026-04-10 19:33 UTC (History)
0 users

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Description OSIDB Bzimport 2026-04-10 17:03:19 UTC 
An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).
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