CVE-2026-98252RDMA/core: fix refcount bug in iwpm_get_nlmsg_request()
- 7.0HighCVSS base score
- 0.12%Exploitation in 30 daysEPSS · top 98% 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: RDMA/core: fix refcount bug in iwpm_get_nlmsg_request() iwpm_get_nlmsg_request() initializes refcount _after_ list_add_tail() making it accessible to global list where another CPU can kref_get() on nlmsg_request causing a refcount "addition on 0" bug. Fix this by initializing kref _before_ list_add_tail() so refcount for nlmsg_request can be incremented/decremented normally. In addition, also initialize every field before list_add_tail().
Timeline
ID reserved
By Linux
- 11 days later
· 11 days later
Published
- 13 days later
· 13 days 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 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 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)
- 0.12% · top 98% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.
Affected products
- affected 30dc5e63d6a5ad24894b5512d10b228d73645a44 – < 52c13c63bb3662c108244e7447055e30bf40244e
- affected 30dc5e63d6a5ad24894b5512d10b228d73645a44 – < 8a91609032d47e77bcb37bc8f6e88d89340d2709
- affected 30dc5e63d6a5ad24894b5512d10b228d73645a44 – < ce8a379598bd4058081416abea4279fd05a95374
- affected 30dc5e63d6a5ad24894b5512d10b228d73645a44 – < 2fbac8a56004b6ce54fbfe845d4b25da6e0b55e8
- affected 30dc5e63d6a5ad24894b5512d10b228d73645a44 – < 88e429a4e9bac3d2138011c5ca06254331f2587f
- affected 30dc5e63d6a5ad24894b5512d10b228d73645a44 – < e15eb536be4f646ce683d2867572b2200be877f7
- affected 30dc5e63d6a5ad24894b5512d10b228d73645a44 – < 117871cdb8927542abd7b65ce5995bf0265a8c05
- affected 30dc5e63d6a5ad24894b5512d10b228d73645a44 – < 33fb59da49c4c3f5c2ec9f9d4447a56857a02c02
- affected 3.16
- unaffected < 3.16
- unaffected 5.10.271 – ≤ 5.10.*
- unaffected 5.15.222 – ≤ 5.15.*
- unaffected 6.1.189 – ≤ 6.1.*
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.54 – ≤ 6.18.*
- unaffected 7.2.8 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/52c13c63bb3662c108244e7447055e30bf40244e (opens in a new tab)
- https://git.kernel.org/stable/c/8a91609032d47e77bcb37bc8f6e88d89340d2709 (opens in a new tab)
- https://git.kernel.org/stable/c/ce8a379598bd4058081416abea4279fd05a95374 (opens in a new tab)
- https://git.kernel.org/stable/c/2fbac8a56004b6ce54fbfe845d4b25da6e0b55e8 (opens in a new tab)
- https://git.kernel.org/stable/c/88e429a4e9bac3d2138011c5ca06254331f2587f (opens in a new tab)
- https://git.kernel.org/stable/c/e15eb536be4f646ce683d2867572b2200be877f7 (opens in a new tab)
- https://git.kernel.org/stable/c/117871cdb8927542abd7b65ce5995bf0265a8c05 (opens in a new tab)
- https://git.kernel.org/stable/c/33fb59da49c4c3f5c2ec9f9d4447a56857a02c02 (opens in a new tab)
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-2026-93180 (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-2026-98252)Record last updated .