Answer in brief
CVE-2026-98465 records a High severity (CVSS 7.0) vulnerability in RISC-V: KVM: Serialize IMSIC attributes with vCPU migration. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=db8b7e97d6137a28b2bfc07e591d54da268f0c36 <a29c5d2dd2ef9a8617a9a6d5585696d5f149cd98 || >=db8b7e97d6137a28b2bfc07e591d54da268f0c36 <c525772c304c971b0d3a1f2898dedbae653efe90 || >=db8b7e97d6137a28b2bfc07e591d54da268f0c36 <71acbea44e78665ea90e3c310fca6bbdcc0252db || >=db8b7e97d6137a28b2bfc07e591d54da268f0c36 <8ae12ccaec6ec74945d8c1ef39f2c1b8df779abc | a29c5d2dd2ef9a8617a9a6d5585696d5f149cd98, c525772c304c971b0d3a1f2898dedbae653efe90, 71acbea44e78665ea90e3c310fca6bbdcc0252db, 8ae12ccaec6ec74945d8c1ef39f2c1b8df779abc |
| Linux/Linuxgeneric | 6.5 | Not reported |
| Linux/Linuxgeneric | >=db8b7e97d6137a28b2bfc07e591d54da268f0c36 <6c2bcf6b173d4afed883cceea9d47f2c5194161d || >=db8b7e97d6137a28b2bfc07e591d54da268f0c36 <a29c5d2dd2ef9a8617a9a6d5585696d5f149cd98 || >=db8b7e97d6137a28b2bfc07e591d54da268f0c36 <c525772c304c971b0d3a1f2898dedbae653efe90 || >=db8b7e97d6137a28b2bfc07e591d54da268f0c36 <71acbea44e78665ea90e3c310fca6bbdcc0252db || >=db8b7e97d6137a28b2bfc07e591d54da268f0c36 <8ae12ccaec6ec74945d8c1ef39f2c1b8df779abc | 6c2bcf6b173d4afed883cceea9d47f2c5194161d, a29c5d2dd2ef9a8617a9a6d5585696d5f149cd98, c525772c304c971b0d3a1f2898dedbae653efe90, 71acbea44e78665ea90e3c310fca6bbdcc0252db, 8ae12ccaec6ec74945d8c1ef39f2c1b8df779abc |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Serialize IMSIC attributes with vCPU migration KVM device ioctls are not serialized against KVM_RUN. As a result, kvm_riscv_aia_imsic_rw_attr() can snapshot the physical CPU and HGEI of an IMSIC VS-file before a concurrent vCPU migration releases it. The HGEI can then be allocated to another vCPU before imsic_vsfile_rw() uses the stale tuple. A GET or SET attribute may consequently access the new owner's interrupt file. Serialize the entire IMSIC attribute operation with the target vCPU mutex. This prevents the VS-file from being migrated and recycled until the attribute access completes. Acquire the mutex killably so that the device ioctl remains interruptible while waiting for KVM_RUN to finish.
Quoted source text, attributed separately from HOL analysis.