CVE-2026-80880

highpriority · track · 0EPSS 0.002 · 5 %ileDEFRRU
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.16% (5th) EPSS
CVSS 7.1 · high
Is it mine?
28 products
Check your exposure
Who says so?
3 sources
fstec_bdu · cert_bund · certfr

EPSS · scored 2026-10-27

In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Properly support implicit ODP rereg_mr Due to all the child mkeys in the implicit ODP configuration we cannot change anything in place for the parent mkey. Instead the whole thing needs to be rebuilt if any change is requested. If the user does not specify a translation then force the implicit values which will then fall through the logic into mlx5_ib_reg_user_mr() to allocate a completely new MR. Since implicit children were also touching the mr->pd, this removes another case where the access was racy.

01

cvss

Technical severity, 0–10. One row per scoring source.

7.1
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.1highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hsecondary · FSTEC (BDU) RU
02

weaknesses

The CWE weakness classes this flaw belongs to.

03

affected products (28)

Products and version ranges known to be affected.

04

advisories (5)

Vendor and ecosystem advisories describing this.

05

also known as (2)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

published 2026-09-04modified 2026-10-20
07

references (7) nvd

External citations — patches, advisories, analysis.

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