CVE-2026-43055 POC (Proof-of-Concept)

In the Linux kernel, the following vulnerability has been resolved:
scsi: target: file: Use kzalloc_flex for aio_cmd
The target_core_file doesn't initialize the aio_cmd->iocb for the
ki_write_stream. When a write command fd_execute_rw_aio() is executed,
we may get a bogus ki_write_stream value, causing unintended write
failure status when checking iocb->ki_write_stream > max_write_streams
in the block device.
Let's just use kzalloc_flex when allocating the aio_cmd and let
ki_write_stream=0 to fix this issue.

Published: 2026-05-01

CVSS: 7.5

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Download CVE-2026-43055 POC (Proof-of-Concept) here:

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https://hokyo.gr/poc-679-cve-2026-41143/

https://hokyo.gr/poc-520-cve-2026-43250/

https://hokyo.gr/poc-623-cve-2026-8001/

https://hokyo.gr/poc-76-cve-2026-31779/

https://hokyo.gr/poc-318-cve-2026-5722/