PT-2026-51915 · Linux · Linux

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-53021

Mitre

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.

Related Identifiers

CVE-2026-53021

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-53021 · Security Note
• https://git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fb · Note
• https://git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90a · Note
• https://git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4 · Note
• https://git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8 · Note
• https://git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3 · Note
• https://git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd · Note
• https://git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61a · Note
• https://git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7e · Note