CVE-2022-48789
nvme-tcp: fix possible use-after-free in transport error_recovery work
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Description
In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix possible use-after-free in transport error_recovery work While nvme_tcp_submit_async_event_work is checking the ctrl and queue state before preparing the AER command and scheduling io_work, in order to fully prevent a race where this check is not reliable the error recovery work must flush async_event_work before continuing to destroy the admin queue after setting the ctrl state to RESETTING such that there is no race .submit_async_event and the error recovery handler itself changing the ctrl state.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/5e42fca37ccc76f39f73732661bd47254cad5982
- https://git.kernel.org/stable/c/61a26ffd5ad3ece456d74c4c79f7b5e3f440a141
- https://git.kernel.org/stable/c/bb0d8fb35c4ff00a503c2c4dca4cce8d102a21c4
- https://git.kernel.org/stable/c/e192184cf8bce8dd55d619f5611a2eaba996fa05
- https://git.kernel.org/stable/c/ff9fc7ebf5c06de1ef72a69f9b1ab40af8b07f9e
References (5)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
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