Vulnerability CVE-2024-44969
Published: 2024-09-04

Description:
In the Linux kernel, the following vulnerability has been resolved:

s390/sclp: Prevent release of buffer in I/O

When a task waiting for completion of a Store Data operation is
interrupted, an attempt is made to halt this operation. If this attempt
fails due to a hardware or firmware problem, there is a chance that the
SCLP facility might store data into buffers referenced by the original
operation at a later time.

Handle this situation by not releasing the referenced data buffers if
the halt attempt fails. For current use cases, this might result in a
leak of few pages of memory in case of a rare hardware/firmware
malfunction.

 References:
https://git.kernel.org/stable/c/7a7e60ed23d471a07dbbe72565d2992ee8244bbe
https://git.kernel.org/stable/c/1ec5ea9e25f582fd6999393e2f2c3bf56f234e05
https://git.kernel.org/stable/c/a3e52a4c22c846858a6875e1c280030a3849e148
https://git.kernel.org/stable/c/a88a49473c94ccfd8dce1e766aacf3c627278463
https://git.kernel.org/stable/c/46f67233b011385d53cf14d272431755de3a7c79
https://git.kernel.org/stable/c/1e8b7fb427af6b2ddd54eff66a6b428a81c96633
https://git.kernel.org/stable/c/2429ea3b4330e3653b72b210a0d5f2a717359506
https://git.kernel.org/stable/c/bf365071ea92b9579d5a272679b74052a5643e35
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