Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — scsi: target: Fix WRITE_SAME No Data Buffer crash
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0042 35.5 —
AFFECTED
Product Versions Fixed
Linux f6970ad31d42fceb38b5595cbad093a4d0bfcc43 – —
Linux 3.8 – 5.4.294
TIMELINE
Nov 15 Reserved by oracle
May 2 Published (CNA: oracle)
Aug 4 RESCORED — CVE-2022-21546 (Linux). CVSS 7.5 → 7.8 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: Fix WRITE_SAME No Data Buffer crash
In newer version of the SBC specs, we have a NDOB bit that indicates there
is no data buffer that gets written out. If this bit is set using commands
like "sg_write_same --ndob" we will crash in target_core_iblock/file's
execute_write_same handlers when we go to access the se_cmd->t_data_sg
because its NULL.
This patch adds a check for the NDOB bit in the common WRITE SAME code
because we don't support it. And, it adds a check for zero SG elements in
each handler in case the initiator tries to send a normal WRITE SAME with
no data buffer.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| November 15, 2021 | Reserved | Reserved by oracle |
| May 2, 2025 | Published | Published (CNA: oracle) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2022-21546 (Linux). CVSS 7.5 → 7.8 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | f6970ad31d42fceb38b5595cbad093a4d0bfcc43 | — |
| Linux | Linux | — | 3.8 | 5.4.294 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-21546 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.