CVE-2025-68247
In the Linux kernel, the following vulnerability has been resolved: posix-timers: Plug potential memory leak in do_timer_create() When posix timer creation is set to allocate a given timer ID and the access to the user space value faults, the function terminates without freeing the already allocated posix timer structure. Move the allocation after the user space access to cure that. [ tglx: Massaged change log ]
Affected versions
Linux kernel versions
6.15
and later are affected. Fixed in
6.17.9,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-68247 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/e0fd4d42e27f761e9cc82801b3f183e658dc749d
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PatchKernel patch commithttps://git.kernel.org/stable/c/f417f44524e7fc098e787c718d838b32723c0b2d
Frequently asked questions
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What is CVE-2025-68247?
CVE-2025-68247 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.15 onward and has been patched in 6.17.9 and 6.18. CVE-2025-68247 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-2025-68247?
Yes — CVE-2025-68247 has been patched. Fixed versions include 6.17.9 and 6.18. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68247 actively exploited?
No — CVE-2025-68247 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.