7.5

CVE-2026-98257: linux

CVSS: 7.5v3.1HighReceived
AliasesUBUNTU-CVE-2026-98257DEBIAN-CVE-2026-98257
Published 06-10-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-98257 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.9% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.53%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:12131-1

Timeline

  1. 06-10-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: rds: ib: use rds_conn_drop() on protocol version mismatch rds_ib_cm_connect_complete() runs from the RDMA-CM event handler with conn->c_cm_lock held. When the peer negotiates a protocol version older than RDS_PROTOCOL_COMPAT_VERSION, the handler calls rds_conn_destroy(), which is only safe in the rmmod path: it synchronously tears the connection down and flush_work()es the shutdown work cp_down_w. That shutdown work (rds_conn_shutdown()) needs cp_cm_lock, which is the very lock the event handler still holds, so the flush never completes: the two workers wait on each other and the RDS connection workqueues stall for good. All other RDMA-CM failure paths (REJECTED, CONNECT_ERROR, DISCONNECTED) use rds_conn_drop(), which marks the connection RDS_CONN_ERROR and schedules the shutdown work asynchronously. Use it here as well.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

06-10-202621-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No 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≥ f147dd9ecabf23fd63d2562ffe64252a0453ecde, < 424019be3f637da76b74f44a40034669acbb166f | ≥ f147dd9ecabf23fd63d2562ffe64252a0453ecde, < 14fb90067d13f4494cff0f03243fae3cf2911cbc | ≥ f147dd9ecabf23fd63d2562ffe64252a0453ecde, < 344c72a0bc2703a6de4918ed935850e07dae3af2 | ≥ f147dd9ecabf23fd63d2562ffe64252a0453ecde, < b5c9f2951d330d4a198a64d6e60f79b4bd6ef078 | ≥ f147dd9ecabf23fd63d2562ffe64252a0453ecde, < d392b16acd0908f077289aad8bba066ff16de336 | ≥ f147dd9ecabf23fd63d2562ffe64252a0453ecde, < 65ca0a5037152a5a80b8fe6aac80eb80458be573 | ≥ f147dd9ecabf23fd63d2562ffe64252a0453ecde, < 7d8c22cb2cb1efb5e830a4545c76abf7b35cc2e8 | ≥ f147dd9ecabf23fd63d2562ffe64252a0453ecde, < f97d8c7bab7843631206a114986c9059da03efeb | 2.6.37

3 vendors · 171 products

References

12 links
Show all 12 references