CVE-2026-72018
dibs: loopback: validate offset and size in move_data()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: dibs: loopback: validate offset and size in move_data() The loopback move_data() performs a memcpy into the registered DMB without checking whether offset + size exceeds the DMB length. Unlike real ISM hardware, which enforces memory region bounds natively, the software loopback has no such protection. A peer-supplied out-of-bounds offset or oversized write would result in an OOB write past the allocated kernel buffer. Add an explicit bounds check before the memcpy to reject such requests with -EINVAL.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
f7a22071dbf316c982fb44308874bd7ad9ac2091 < ee188a6b264b71315a67f1b9470faad308b730d2 f7a22071dbf316c982fb44308874bd7ad9ac2091 < b2f426a9a22886071966432ede8fceafffe12b8c f7a22071dbf316c982fb44308874bd7ad9ac2091 < 94fe0ab01b480b52bd8f977edbd845ef375d69fd f7a22071dbf316c982fb44308874bd7ad9ac2091 < 78237e3c0720fcc6eb9b87e90fd70f63eeca886f
Linux / Linux
6.10
References
git.kernel.org: https://git.kernel.org/stable/c/ee188a6b264b71315a67f1b9470faad308b730d2 git.kernel.org: https://git.kernel.org/stable/c/b2f426a9a22886071966432ede8fceafffe12b8c git.kernel.org: https://git.kernel.org/stable/c/94fe0ab01b480b52bd8f977edbd845ef375d69fd git.kernel.org: https://git.kernel.org/stable/c/78237e3c0720fcc6eb9b87e90fd70f63eeca886f