5.5

CVE-2026-31658: net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()

Modified
AliasesUBUNTU-CVE-2026-31658DEBIAN-CVE-2026-31658
Published 24-04-2026Last modified 15-10-2026

Vulnerability summary

CVE-2026-31658 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.12%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 32 · Related 30
MGASA-2026-0108MGASA-2026-0110SUSE-SU-2026:21834-1SUSE-SU-2026:4120-1SUSE-SU-2026:4254-1USN-8567-1

Timeline

  1. 24-04-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit() When dma_map_single() fails in tse_start_xmit(), the function returns NETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells the stack the packet was consumed, the skb is never freed, leaking memory on every DMA mapping failure. Add dev_kfree_skb_any() before returning to properly free the skb.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

Decrease -0.05 pp

From 0.17% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ bbd2190ce96d8fce031f0526c1f970b68adc9d1a, < ae2cd46f57f422b51aedd406ff5d75cbff401d5d | ≥ bbd2190ce96d8fce031f0526c1f970b68adc9d1a, < cb1d318702fdf643061350d164250198df4116f2 | ≥ bbd2190ce96d8fce031f0526c1f970b68adc9d1a, < d5ec406f0543bd6cdfd563b08015fdec8c4d5712 | ≥ bbd2190ce96d8fce031f0526c1f970b68adc9d1a, < 2eb9d67704ca8f1101f7435b85f113ede471f9f2 | ≥ bbd2190ce96d8fce031f0526c1f970b68adc9d1a, < 9f3ec44aeb58501d11834048d5d0dbaeacb6d4e7 | ≥ bbd2190ce96d8fce031f0526c1f970b68adc9d1a, < 60f462cd2716d86bd2174f9d5e035c9278f30480 | ≥ bbd2190ce96d8fce031f0526c1f970b68adc9d1a, < 3aca300e88afe56afb000cdc4c65383014fb17f9 | ≥ bbd2190ce96d8fce031f0526c1f970b68adc9d1a, < 6dede3967619b5944003227a5d09fdc21ed57d10 | 3.15
  • linux_kernel≥ 3.15.1, < 5.10.253 | ≥ 5.11, < 5.15.203 | ≥ 5.16, < 6.1.169 | ≥ 6.2, < 6.6.135 | ≥ 6.7, < 6.12.82 | ≥ 6.13, < 6.18.23 | ≥ 6.19, < 6.19.13 | 3.15 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4 | 7.0:rc5 | 7.0:rc6 | 7.0:rc7
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.13-1

3 vendors · 160 products

References

43 links
Show all 43 references