CVE-2026-53021
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJun 24, 2026
First seenJun 24, 2026
Weakness typeCWE-190Integer overflow
How to fix
Update
- linux linux_kernel5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10 or later
Patches
- git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3
- git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90a
- git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd
- git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8
- git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fb
- git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61a
- git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7e
- git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.10 ≤ v < 5.10.258, 5.11 ≤ v < 5.15.209, 5.16 ≤ v < 6.1.175, 6.2 ≤ v < 6.6.141, 6.7 ≤ v < 6.12.91, 6.13 ≤ v < 6.18.33, 6.19 ≤ v < 7.0.10 | 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10 |
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