CVE-2026-89922
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
KVM: s390: Take srcu when importing watchpoint data
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 27291e2165b6de70c476b7b675308113edd69a60 | affected | git | 6830fbc3724bf49c142aae69a4694f115fa9cedd | Unavailable | None listed |
| 27291e2165b6de70c476b7b675308113edd69a60 | affected | git | f8e3a9997d5ecd56ebe4b262ff424516c068fecb | Unavailable | None listed |
| 27291e2165b6de70c476b7b675308113edd69a60 | affected | git | 76f5b4ea9ed0aa5a34bda9d8a878f2c73026ec03 | Unavailable | None listed |
| 27291e2165b6de70c476b7b675308113edd69a60 | affected | git | cc710ee45395efb4937e042960f791d33924e5f6 | Unavailable | None listed |
| 27291e2165b6de70c476b7b675308113edd69a60 | affected | git | 4c05bf21d1806853e662cc19e744736a3408f155 | Unavailable | None listed |
| 27291e2165b6de70c476b7b675308113edd69a60 | affected | git | a4e482def8533ebace517d9f67f1465841b1f982 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.16 | Unavailable | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.51 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.5 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |