CVE-2026-53021 Details
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.
A vulnerability has been identified in the Linux kernel's SCSI target component, specifically within the UNMAP bounds checking process. The issue arises because the sbc_execute_unmap() function fails to properly validate the Logical Block Addressing (LBA) and range parameters, allowing them to exceed the device's capacity. This oversight could lead to a 64-bit integer overflow, where the sum of LBA and range wraps around, potentially causing unintended behavior or errors. The vulnerability affects several versions of the Linux kernel.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed. The specific commit that resolves this issue is available in the Linux kernel stable tree.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90a | kernel.org | Patch |
| https://git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd | kernel.org | Patch |
| https://git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fb | kernel.org | Patch |
| https://git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61a | kernel.org | Patch |
| https://git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7e | kernel.org | Patch |
| https://git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-190 | Integer Overflow or Wraparound | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 3.10, < 5.10.258 >= 5.11, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.141 >= 6.7, < 6.12.91 >= 6.13, < 6.18.33 >= 6.19, < 7.0.10 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | Initial Analysis | [email protected] |
| Jun 24, 2026 | New CVE Received | kernel.org |