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CVE-2026-98252

HIGHCVSS 7/10EPSS 0.22%

Last modified

CVE-2026-98252 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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().

Metrics

CVSS 3.1
7/10

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

EPSS Probability
0.22%

11.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 52c13c63bb3662c108244e7447055e30bf40244e; >= 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 8a91609032d47e77bcb37bc8f6e88d89340d2709; >= 30dc5e63d6a5ad24894b5512d10b228d73645a44, < ce8a379598bd4058081416abea4279fd05a95374; >= 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 2fbac8a56004b6ce54fbfe845d4b25da6e0b55e8; >= 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 88e429a4e9bac3d2138011c5ca06254331f2587f; >= 30dc5e63d6a5ad24894b5512d10b228d73645a44, < e15eb536be4f646ce683d2867572b2200be877f7; >= 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 117871cdb8927542abd7b65ce5995bf0265a8c05; >= 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 33fb59da49c4c3f5c2ec9f9d4447a56857a02c02
LinuxLinux3.16

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98252?
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().
How severe is CVE-2026-98252?
CVE-2026-98252 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2026-98252?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST