CVE-2026-98465
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)
RISC-V: KVM: Serialize IMSIC attributes with vCPU migration
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.
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) |
|---|---|---|---|---|---|
| db8b7e97d6137a28b2bfc07e591d54da268f0c36 | affected | git | 6c2bcf6b173d4afed883cceea9d47f2c5194161d | Unavailable | None listed |
| db8b7e97d6137a28b2bfc07e591d54da268f0c36 | affected | git | a29c5d2dd2ef9a8617a9a6d5585696d5f149cd98 | Unavailable | None listed |
| db8b7e97d6137a28b2bfc07e591d54da268f0c36 | affected | git | c525772c304c971b0d3a1f2898dedbae653efe90 | Unavailable | None listed |
| db8b7e97d6137a28b2bfc07e591d54da268f0c36 | affected | git | 71acbea44e78665ea90e3c310fca6bbdcc0252db | Unavailable | None listed |
| db8b7e97d6137a28b2bfc07e591d54da268f0c36 | affected | git | 8ae12ccaec6ec74945d8c1ef39f2c1b8df779abc | 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) |
|---|---|---|---|---|---|
| 6.5 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.5 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.55 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.9 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |