High 7.0Published Oct 6, 2026

CVE-2026-98252RDMA/core: fix refcount bug in iwpm_get_nlmsg_request()

Updated under an hour ago (Oct 27, 2026, 4:30 AM ET)

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EPSS puts the chance of exploitation in the next 30 days at 0.12%, higher than 2% of scored CVEs.

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Exploited in the last 30 days

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().

CVSS: 7.0 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.12% (percentile 2)
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 30dc5e63d6a5ad24894b5512d10b228d73645a44 before 52c13c63bb3662c108244e7447055e30bf40244e; 30dc5e63d6a5ad24894b5512d10b228d73645a44 builds before 8a91609032d47e77bcb37bc8f6e88d89340d2709; from 30dc5e63d6a5ad24894b5512d10b228d73645a44 before ce8a379598bd4058081416abea4279fd05a95374; 30dc5e63d6a5ad24894b5512d10b228d73645a44 builds before 2fbac8a56004b6ce54fbfe845d4b25da6e0b55e8; from 30dc5e63d6a5ad24894b5512d10b228d73645a44 before 88e429a4e9bac3d2138011c5ca06254331f2587f; from 30dc5e63d6a5ad24894b5512d10b228d73645a44 before e15eb536be4f646ce683d2867572b2200be877f7; from 30dc5e63d6a5ad24894b5512d10b228d73645a44 before 117871cdb8927542abd7b65ce5995bf0265a8c05; from 30dc5e63d6a5ad24894b5512d10b228d73645a44 before 33fb59da49c4c3f5c2ec9f9d4447a56857a02c02	CNA record

References

References

https://git.kernel.org/stable/c/52c13c63bb3662c108244e7447055e30bf40244e
https://git.kernel.org/stable/c/8a91609032d47e77bcb37bc8f6e88d89340d2709
https://git.kernel.org/stable/c/ce8a379598bd4058081416abea4279fd05a95374
https://git.kernel.org/stable/c/2fbac8a56004b6ce54fbfe845d4b25da6e0b55e8
https://git.kernel.org/stable/c/88e429a4e9bac3d2138011c5ca06254331f2587f
https://git.kernel.org/stable/c/e15eb536be4f646ce683d2867572b2200be877f7
https://git.kernel.org/stable/c/117871cdb8927542abd7b65ce5995bf0265a8c05
https://git.kernel.org/stable/c/33fb59da49c4c3f5c2ec9f9d4447a56857a02c02

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.