CVE-2024-27435nvme: fix reconnection fail due to reserved tag allocation
- 7.5HighCVSS base score
- 0.40%Exploitation in 30 daysEPSS · top 65% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: nvme: fix reconnection fail due to reserved tag allocation We found a issue on production environment while using NVMe over RDMA, admin_q reconnect failed forever while remote target and network is ok. After dig into it, we found it may caused by a ABBA deadlock due to tag allocation. In my case, the tag was hold by a keep alive request waiting inside admin_q, as we quiesced admin_q while reset ctrl, so the request maked as idle and will not process before reset success. As fabric_q shares tagset with admin_q, while reconnect remote target, we need a tag for connect command, but the only one reserved tag was held by keep alive command which waiting inside admin_q. As a result, we failed to reconnect admin_q forever. In order to fix this issue, I think we should keep two reserved tags for admin queue.
Timeline
ID reserved
By Linux
- 3 months later
· 3 months later
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 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.40% · top 65% of all CVEs (15 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: High 7.5.
Affected products
- affected ed01fee283a067c72b2d6500046080dbc1bb9dae – < 149afee5c7418ec5db9d7387b9c9a5c1eb7ea2a8
- affected ed01fee283a067c72b2d6500046080dbc1bb9dae – < ff2f90f88d78559802466ad1c84ac5bda4416b3a
- affected ed01fee283a067c72b2d6500046080dbc1bb9dae – < 6851778504cdb49431809b4ba061903d5f592c96
- affected ed01fee283a067c72b2d6500046080dbc1bb9dae – < 262da920896e2f2ab0e3947d9dbee0aa09045818
- affected ed01fee283a067c72b2d6500046080dbc1bb9dae – < de105068fead55ed5c07ade75e9c8e7f86a00d1d
- affected 5.12
- unaffected < 5.12
- unaffected 6.1.83 – ≤ 6.1.*
- unaffected 6.6.23 – ≤ 6.6.*
- unaffected 6.7.11 – ≤ 6.7.*
- unaffected 6.8.2 – ≤ 6.8.*
- unaffected 6.9 – ≤ *
References
References5
- https://git.kernel.org/stable/c/149afee5c7418ec5db9d7387b9c9a5c1eb7ea2a8 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/ff2f90f88d78559802466ad1c84ac5bda4416b3a (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/6851778504cdb49431809b4ba061903d5f592c96 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/262da920896e2f2ab0e3947d9dbee0aa09045818 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/de105068fead55ed5c07ade75e9c8e7f86a00d1d (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)
- EUVD EUVD-2024-24639 (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://cveledger.app/cve/CVE-2024-27435)Record last updated .