CVE-2026-53021
scsi: target: core: Fix integer overflow in UNMAP bounds check
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
24 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
Affected products
Linux · LinuxWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3https://git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90ahttps://git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0ddhttps://git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8https://git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fbhttps://git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61ahttps://git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7ehttps://git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4