CVE-2026-98252

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().

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EPSS — Exploit Prediction

0.0022

Probability of exploitation

0.11%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

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

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 do I check if I'm vulnerable to CVE-2026-98252? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.