CVE-2022-50482
iommu/vt-d: Clean up si_domain in the init_dmars() error path
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- 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: iommu/vt-d: Clean up si_domain in the init_dmars() error path A splat from kmem_cache_destroy() was seen with a kernel prior to commit ee2653bbe89d ("iommu/vt-d: Remove domain and devinfo mempool") when there was a failure in init_dmars(), because the iommu_domain cache still had objects. While the mempool code is now gone, there still is a leak of the si_domain memory if init_dmars() fails. So clean up si_domain in the init_dmars() error path.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.2
References 7
git.kernel.org
- stable/c/749bea542b67513e99240dc58bbfc099e842d508
- stable/c/5cecfe151874b835331efe086bbdcaeaf64f6b90
- stable/c/724483b585a1b1e063d42ac5aa835707ff2ec165
- stable/c/d74196bb278b8f8af88e16bd595997dfa3d6fdb0
- stable/c/0365d6af75f9f2696e94a0fef24a2c8464c037c8
- stable/c/c4ad3ae4c6be9d8b0701761c839771116bca6ea3
- stable/c/620bf9f981365c18cc2766c53d92bf8131c63f32