s390/ism: fix concurrency management in ism_cmd()

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AZL-66932 CVE-2025-39726 affecting package kernel for versions less than 6.6.104.2-1

In the Linux kernel, the following vulnerability has been resolved: s390/ism: fix concurrency management in ismcmd The s390x ISM device data sheet clearly states that only one request-response sequence is allowable per ISM function at any point in time. Unfortunately as of today the s390/ism driv...

CVE-2025-39726

CVE-2025-39726 concerns the s390 Linux kernel ISM driver. The connected BDU entry notes that vulnerabilities in the functions ism_cmd() and ism_probe() in drivers/s390/net/ism_drv.c enable state management errors that can cause service failures. The initial description explains the root cause: th...

CVE-2025-39726 s390/ism: fix concurrency management in ism_cmd()

In the Linux kernel, the following vulnerability has been resolved: s390/ism: fix concurrency management in ismcmd The s390x ISM device data sheet clearly states that only one request-response sequence is allowable per ISM function at any point in time. Unfortunately as of today the s390/ism driv...