Answer in brief
CVE-2026-53021 records a Medium severity (CVSS 5.5) vulnerability in scsi: target: core: Fix integer overflow in UNMAP bounds check. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=86d7182985d25900929adce14fffd729cc8c6fb8 <c08ab702c4699c6efb9d60bdb15b73e7a627ee7e || >=86d7182985d25900929adce14fffd729cc8c6fb8 <2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd || >=86d7182985d25900929adce14fffd729cc8c6fb8 <5efc3ef4758f8d98c257419fa21daca3227de61a || >=86d7182985d25900929adce14fffd729cc8c6fb8 <d7aef29573c7c5cdb2dfad939253287a6329c2a4 || >=86d7182985d25900929adce14fffd729cc8c6fb8 <3facdecc3fcf115cc4f9b3d8f118d6705e2456a8 || >=86d7182985d25900929adce14fffd729cc8c6fb8 <51075df70c46e60a9773f2dcd28299e40dac36fb || >=86d7182985d25900929adce14fffd729cc8c6fb8 <02115986d027ade793e7f6be87e91d6a796d0aa3 || >=86d7182985d25900929adce14fffd729cc8c6fb8 <2bf2d65f76697820dbc4227d13866293576dd90a | c08ab702c4699c6efb9d60bdb15b73e7a627ee7e, 2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd, 5efc3ef4758f8d98c257419fa21daca3227de61a, d7aef29573c7c5cdb2dfad939253287a6329c2a4, 3facdecc3fcf115cc4f9b3d8f118d6705e2456a8, 51075df70c46e60a9773f2dcd28299e40dac36fb, 02115986d027ade793e7f6be87e91d6a796d0aa3, 2bf2d65f76697820dbc4227d13866293576dd90a |
| Linux/Linuxgeneric | 3.10 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.