CVE-2022-49611
x86/speculation: Fill RSB on vmexit for IBRS
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 4.14.297, 3.3, 3.17, 4.5, 4.10
- 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: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 4.14.14 · fixed in 4.14.297; From 3.2.101 · fixed in 3.3; From 3.16.56 · fixed in 3.17; From 4.4.113 · fixed in 4.5; From 4.9.77 · fixed in 4.10
- Linux Linux
4.15
References 7
git.kernel.org
- stable/c/3d323b99ff5c8c57005184056d65f6af5b0479d8
- stable/c/f744b88dfc201bf8092833ec70b23c720188b527
- stable/c/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0
- stable/c/4d7f72b6e1bc630bec7e4cd51814bc2b092bf153
- stable/c/8d5cff499a6d740c91ff37963907e0e983c37f0f
- stable/c/8c38306e2e9257af4af2819aa287a4711ff36329
- stable/c/9756bba28470722dacb79ffce554336dd1f6a6cd