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Critical 9.8Published Aug 22, 2025

CVE-2025-38660[ceph] parse_longname(): strrchr() expects NUL-terminated string

Updated under an hour ago ()

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It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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In the Linux kernel, the following vulnerability has been resolved: [ceph] parse_longname(): strrchr() expects NUL-terminated string ... and parse_longname() is not guaranteed that. That's the reason why it uses kmemdup_nul() to build the argument for kstrtou64(); the problem is, kstrtou64() is not the only thing that need it. Just get a NUL-terminated copy of the entire thing and be done with that...

CVSS
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Linux
NVD analysis
Modified
Record last updated
Oct 15, 2026
First seen by InfoSec Signals
Oct 15, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
from dd66df0053ef84add5e684df517aa9b498342381 before 4b9aee707c4580511983a0998547f3b28514e6a6; from dd66df0053ef84add5e684df517aa9b498342381 before bb80f7618832d26f7e395f52f82b1dac76223e5f; from dd66df0053ef84add5e684df517aa9b498342381 before 3145b2b11492d61c512bbc59660bb823bc757f48; from dd66df0053ef84add5e684df517aa9b498342381 before 493479af8af3ab907f49e99323777d498a4fbd2b; from dd66df0053ef84add5e684df517aa9b498342381 before 101841c38346f4ca41dc1802c867da990ffb32eb
CNA record
linux linux_kernel
linux:linux_kernel
from 6.6 before 6.12.42; from 6.13 before 6.15.10; from 6.16 before 6.16.1
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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