CVE-2026-89922
CVE CVE-2026-89922EUVD EUVD-2026-80522Published 2026-09-16T10:32:16.000ZLast changed 2026-09-16T14:40:15.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Take srcu when importing watchpoint data __import_wp_info() backs up the original guest memory contents of a watchpoint with read_guest_abs(), which is kvm_read_guest() and therefore resolves the memslot via __kvm_memslots(). That requires kvm->srcu (or kvm->slots_lock) to be held, otherwise a concurrent memslot update can free the memslots array under us once its SRCU grace period has elapsed. As this is not fast path, following lock ordering (mutex first, then srcu) take the big hammer and hold the srcu for the full import.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.3-rc1; patch: 6.12.110; patch: 6.6.157; 27291e2165b6de70c476b7b675308113edd69a60 <a4e482def8533ebace517d9f67f1465841b1f982; patch: 6.1.188; 27291e2165b6de70c476b7b675308113edd69a60 <4c05bf21d1806853e662cc19e744736a3408f155; patch: 7.2.5; 27291e2165b6de70c476b7b675308113edd69a60 <76f5b4ea9ed0aa5a34bda9d8a878f2c73026ec03; 27291e2165b6de70c476b7b675308113edd69a60 <6830fbc3724bf49c142aae69a4694f115fa9cedd; patch: 6.18.51; 3.16; patch: 0; 27291e2165b6de70c476b7b675308113edd69a60 <f8e3a9997d5ecd56ebe4b262ff424516c068fecb; 27291e2165b6de70c476b7b675308113edd69a60 <cc710ee45395efb4937e042960f791d33924e5f6
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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