linux: In the Linux kernel, the following vulnerability has been resolved: scsi: target: file: Use kzalloc_flex for aio_cmd...
CVE-2026-43055 is fixed in 19 products on 1 platform, first by DEBIAN-CVE-2026-43055, released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel-livepatch-6.18.25-52.107 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| linux · Debian 14 | 6.19.12-1 | DEBIAN-CVE-2026-43055 | May 15, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
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