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CVE-2025-21863 In the Linux kernel, the following vulnerability has been resolved: io_uring: prevent opcode speculation sqe->opcode…

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: prevent opcode speculation sqe->opcode is used for different tables, make sure we santitise it against speculations.

Affected products and versions

Product Affected versions Fixed in
Linux 6.14 earliest → < 6.14 6.14
Linux 6.13 earliest → < 6.13.5 6.13.5
Linux 6.12 earliest → < 6.12.17 6.12.17
Linux 6.6 earliest → < 6.6.80 6.6.80
Linux 6.1 earliest → < 6.1.175 6.1.175
Linux 5.15 earliest → < 5.15.209 5.15.209
Linux 5.10 earliest → < 5.10.259 5.10.259
Linux 5.6 No fix stated
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.7 → latest No fix stated
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Product Affected versions Fixed in
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 3.1.7 → latest No fix stated
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.7 → latest No fix stated
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Versions not published
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