CVE-2022-48790
nvme: fix a possible use-after-free in controller reset during load
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
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 queue socket) 5. AEN processed, submits another AER, calling the driver to submit 6. driver attempts to send the cmd ==> use-after-free In order to fix that, add ctrl state check to validate the ctrl is actually able to accept the AER submission. This addresses the above race in controller resets because the driver during teardown should: 1. change ctrl state to RESETTING 2. flush async_event_work (as well as other async work elements) So after 1,2, any other AER command will find the ctrl state to be RESETTING and bail out without submitting the AER.
Timeline
ID reserved
By Linux
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.79% · top 43% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
- affected ad22c355b707a8d8d48e282aadc01c0b0604b2e9 – < a25e460fbb0340488d119fb2e28fe3f829b7417e
- affected ad22c355b707a8d8d48e282aadc01c0b0604b2e9 – < 70356b756a58704e5c8818cb09da5854af87e765
- affected ad22c355b707a8d8d48e282aadc01c0b0604b2e9 – < 0ead57ceb21bbf15963b4874c2ac67143455382f
- affected ad22c355b707a8d8d48e282aadc01c0b0604b2e9 – < e043fb5a0336ee74614e26f0d9f36f1f5bb6d606
- affected ad22c355b707a8d8d48e282aadc01c0b0604b2e9 – < 9e956a2596ae276124ef0d96829c013dd0faf861
- affected ad22c355b707a8d8d48e282aadc01c0b0604b2e9 – < 0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d
- affected 4.15
- unaffected < 4.15
- unaffected 4.19.231 – ≤ 4.19.*
- unaffected 5.4.181 – ≤ 5.4.*
- unaffected 5.10.102 – ≤ 5.10.*
- unaffected 5.15.25 – ≤ 5.15.*
- unaffected 5.16.11 – ≤ 5.16.*
- unaffected 5.17 – ≤ *
References (6)
- https://git.kernel.org/stable/c/a25e460fbb0340488d119fb2e28fe3f829b7417e (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/70356b756a58704e5c8818cb09da5854af87e765 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/0ead57ceb21bbf15963b4874c2ac67143455382f (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/e043fb5a0336ee74614e26f0d9f36f1f5bb6d606 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/9e956a2596ae276124ef0d96829c013dd0faf861 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-48790)Record last updated .