Unrated severityNVD Advisory· Published Jun 24, 2026
scsi: target: core: Fix integer overflow in UNMAP bounds check
CVE-2026-53021
Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: core: Fix integer overflow in UNMAP bounds check
sbc_execute_unmap() checks LBA + range does not exceed the device capacity, but does not guard against LBA + range wrapping around on 64-bit overflow.
Add an overflow check matching the pattern already used for WRITE_SAME in the same file.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3mitre
- git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90amitre
- git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0ddmitre
- git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8mitre
- git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fbmitre
- git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61amitre
- git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7emitre
- git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4mitre
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