CVE-2026-89921
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: Zero initialize data structures for inject_pfault_token
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Zero initialize data structures for inject_pfault_token __kvm_inject_pfault_token() only sets .type and .u.ext.ext_params2 of the on-stack struct kvm_s390_irq but the full ext substructure is copied into the cpu local variable on inject. ext_params and pad contain stale stack values. Interrupt delivery only uses ext_params2, so nothing leaks to the guest, but a host user can use the migration ioctls to get to the data. Fix by zero-initializing the irq struct. Do the same for the inti data structure.
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) |
|---|---|---|---|---|---|
| 383d0b050106abecb82f43101cac94fa423af5cd | affected | git | ab1a8a3c9971200938093370da4c67d4427c25f2 | Unavailable | None listed |
| 383d0b050106abecb82f43101cac94fa423af5cd | affected | git | b8abc760fa18a389319d977834a30550b3ec18e8 | Unavailable | None listed |
| 383d0b050106abecb82f43101cac94fa423af5cd | affected | git | 9b046de62b8098af6e2ba820b125ec9dc5f162c8 | Unavailable | None listed |
| 383d0b050106abecb82f43101cac94fa423af5cd | affected | git | 134f235e0e8de54611a72d3cc3f63e5f31246baa | Unavailable | None listed |
| 383d0b050106abecb82f43101cac94fa423af5cd | affected | git | 4e2c7f7cbc27418f9a290399b986c1b85ff93b90 | 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) |
|---|---|---|---|---|---|
| 3.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.19 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.52 | 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 |