CVE-2026-90416: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-90416DEBIAN-CVE-2026-90416
Published 17-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-90416 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.6% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
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-2026:11893-1

Timeline

  1. 17-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs get_param() reads a congestion parameter as a u32 but formats it with the signed "%d" into an 11-byte stack buffer. A value with bit 31 set, such as 0x80000000, renders as "-2147483648\n" whose full length is 12. snprintf() stores only 11 bytes yet returns 12, so simple_read_from_buffer() treats 12 bytes as valid and reads one byte past lbuf[]. Size the buffer for the widest unsigned decimal, format with "%u" to match the u32, and use scnprintf() so the length passed to simple_read_from_buffer() reflects the bytes actually stored.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.21%

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

Ubuntu168 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)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 4a2da0b8c0782816f3ae6846ae7942fcbb0f8172, < 1c5b4f76cd73372c5a8a4c91c95d5a31f141e091 | ≥ 4a2da0b8c0782816f3ae6846ae7942fcbb0f8172, < 06b62758f81e27ca4c81201c22e3436c6d9ac894 | ≥ 4a2da0b8c0782816f3ae6846ae7942fcbb0f8172, < d809cf3f0ed9255abfc73c4730bcf187151422af | ≥ 4a2da0b8c0782816f3ae6846ae7942fcbb0f8172, < 0b0122fcc923a0271130f5fb71af2cd7e20434d9 | ≥ 4a2da0b8c0782816f3ae6846ae7942fcbb0f8172, < ce8dfd32a33b578c3abf178f67b4c8d36854f041 | ≥ 4a2da0b8c0782816f3ae6846ae7942fcbb0f8172, < 4599311e78e88c893ad551aca622de2bfdf1c31f | ≥ 4a2da0b8c0782816f3ae6846ae7942fcbb0f8172, < c75ee076fa09778a2f9602a972dade4a0b0785f7 | ≥ 4a2da0b8c0782816f3ae6846ae7942fcbb0f8172, < 03826bc1fa6c90405bf05831f2b501a8368dcd27 | 4.14

3 vendors · 171 products

References

13 links
Show all 13 references