LoongArch: KVM: Free init resources if kvm_init() fails
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.12.110, 6.18.51, 7.2.5
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Free init resources if kvm_init() fails kvm_loongarch_init() calls kvm_loongarch_env_init() to allocate the per-CPU kvm_context (vmcs) and kvm_loongarch_ops and to register the perf callbacks, and then calls kvm_init(). If kvm_init() fails its result is returned directly, but since module_init() does not run the module_exit() stuff on failure, so kvm_loongarch_env_exit() is never called and those resources are leaked. So call kvm_loongarch_env_exit() when kvm_init() fails, matching the teardown-on-failure pattern used by riscv_kvm_init().
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 2bd6ac68726131da32ace9717aa63ff68cf6605c · fixed in 6bbbd7b719233645a5c120557a9ca1422e6b7a48; From 2bd6ac68726131da32ace9717aa63ff68cf6605c · fixed in 6b78786ee7260d9818cf1d7a245b7a655ef83076; From 2bd6ac68726131da32ace9717aa63ff68cf6605c · fixed in 3bf6f5e2e1007d38a5f35bd37e94ab645a0c40bc; From 2bd6ac68726131da32ace9717aa63ff68cf6605c · fixed in f7a1064cce3b100b54780c68529176232d8eb01e
- Linux Linux
6.7
- KernelLinux
From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.51; From 6.19.0 · fixed in 7.2.5