Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.10, < 5.10.258 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3Patch
- https://git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90aPatch
- https://git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0ddPatch
- https://git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8Patch
- https://git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fbPatch
- https://git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61aPatch
- https://git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7ePatch
- https://git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4Patch
FAQ
What is CVE-2026-53021?
CVE-2026-53021 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 c...
How severe is CVE-2026-53021?
CVE-2026-53021 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53021?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.