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| author | Christoph Schlameuss <schlameuss@linux.ibm.com> | 2024-12-16 10:21:37 +0100 |
|---|---|---|
| committer | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2025-01-07 16:36:11 +0100 |
| commit | 5021fd77d68fce28048b1af18c87bad6b7ffb282 (patch) | |
| tree | 9a3c503ade1acaeba988fdc575cc89ed54edf13c /Documentation | |
| parent | KVM: s390: selftests: Add ucontrol flic attr selftests (diff) | |
| download | linux-5021fd77d68fce28048b1af18c87bad6b7ffb282.tar.xz linux-5021fd77d68fce28048b1af18c87bad6b7ffb282.zip | |
KVM: s390: Reject KVM_SET_GSI_ROUTING on ucontrol VMs
Prevent null pointer dereference when processing
KVM_IRQ_ROUTING_S390_ADAPTER routing entries.
The ioctl cannot be processed for ucontrol VMs.
Fixes: f65470661f36 ("KVM: s390/interrupt: do not pin adapter interrupt pages")
Signed-off-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Tested-by: Hariharan Mari <hari55@linux.ibm.com>
Reviewed-by: Hariharan Mari <hari55@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20241216092140.329196-4-schlameuss@linux.ibm.com
Message-ID: <20241216092140.329196-4-schlameuss@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/virt/kvm/api.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index 454c2aaa155e..f15b61317aad 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -1914,6 +1914,9 @@ No flags are specified so far, the corresponding field must be set to zero. #define KVM_IRQ_ROUTING_HV_SINT 4 #define KVM_IRQ_ROUTING_XEN_EVTCHN 5 +On s390, adding a KVM_IRQ_ROUTING_S390_ADAPTER is rejected on ucontrol VMs with +error -EINVAL. + flags: - KVM_MSI_VALID_DEVID: used along with KVM_IRQ_ROUTING_MSI routing entry |