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Review reviewHigh

CVE-2022-48790

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: nvme: fix a possible use-after-free in controller reset during load Unlike .queue_rq, in .submit_async_event drivers may not check the ctrl readiness for AER submission. This may lead to a use-after-free condition that was observed with nvme-tcp. The race condition may happen in the following scenario: 1. driver executes its reset_ctrl_work 2. -> nvme_stop_ctrl - flushes ctrl async_event_work 3. ctrl sends AEN which is received by the host, which in turn schedules AEN handling 4. teardown admin queue (which releases the que...

CVSS
7
EPSS
0.78%
52.6% percentile
CISA KEV
Not listed
Published
2024.07.16
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.78%
Technical severityCVSS 7

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: nvme: fix a possible use-after-free in controller reset during load Unlike .queue_rq, in .submit_async_event drivers may not check the ctrl readiness for AER submission. This may lead to a use-after-free condition that was observed with nvme-tcp. The race condition may happen in the following scenario: 1. driver executes its reset_ctrl_work 2. -> nvme_stop_ctrl - flushes ctrl async_event_work 3. ctrl sends AEN which is received by the host, which in turn schedules AEN handling 4. teardown admin queue (which releases the que...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= ad22c355b707a8d8d48e282aadc01c0b0604b2e9 < a25e460fbb0340488d119fb2e28fe3f829b7417e, >= ad22c355b707a8d8d48e282aadc01c0b0604b2e9 < 70356b756a58704e5c8818cb09da5854af87e765, >= ad22c355b707a8d8d48e282aadc01c0b0604b2e9 < 0ead57ceb21bbf15963b4874c2ac67143455382f, >= ad22c355b707a8d8d48e282aadc01c0b0604b2e9 < e043fb5a0336ee74614e26f0d9f36f1f5bb6d606, >= ad22c355b707a8d8d48e282aadc01c0b0604b2e9 < 9e956a2596ae276124ef0d96829c013dd0faf861, >= ad22c355b707a8d8d48e282aadc01c0b0604b2e9 < 0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d, >= 4.15, < 4.19.231, >= 4.20 < 5.4.181, >= 5.5 < 5.10.102, >= 5.11 < 5.15.25, >= 5.16 < 5.16.11
Fixed versions
4.19.231, 5.4.181, 5.10.102, 5.15.25, 5.16.11

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416