CVE-2026-98252: linux
Vulnerability summary
CVE-2026-98252 is a high (CVSS 7.0) vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 06-10-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
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().
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.12%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu169 products
- linuxAll versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.113-1 | < 7.2.8-1
Linux1 product
- linux≥ 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 52c13c63bb3662c108244e7447055e30bf40244e | ≥ 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 8a91609032d47e77bcb37bc8f6e88d89340d2709 | ≥ 30dc5e63d6a5ad24894b5512d10b228d73645a44, < ce8a379598bd4058081416abea4279fd05a95374 | ≥ 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 2fbac8a56004b6ce54fbfe845d4b25da6e0b55e8 | ≥ 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 88e429a4e9bac3d2138011c5ca06254331f2587f | ≥ 30dc5e63d6a5ad24894b5512d10b228d73645a44, < e15eb536be4f646ce683d2867572b2200be877f7 | ≥ 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 117871cdb8927542abd7b65ce5995bf0265a8c05 | ≥ 30dc5e63d6a5ad24894b5512d10b228d73645a44, < 33fb59da49c4c3f5c2ec9f9d4447a56857a02c02 | 3.16
3 vendors · 171 products