5.5

CVE-2022-48639: net: sched: fix possible refcount leak in tc_new_tfilter()

Analyzed
AliasesUBUNTU-CVE-2022-48639DEBIAN-CVE-2022-48639
Published 28-04-2024Last modified 11-05-2026

Vulnerability summary

CVE-2022-48639 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 14.1% 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
0.23%
0%100%
Low · 0.00 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 3 · Related 3
SUSE-SU-2024:1644-1SUSE-SU-2024:1659-1SUSE-SU-2024:1663-1

Timeline

  1. 28-04-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix possible refcount leak in tc_new_tfilter() tfilter_put need to be called to put the refount got by tp->ops->get to avoid possible refcount leak when chain->tmplt_ops != NULL and chain->tmplt_ops != tp->ops.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.23% 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

No weakness data has been published for this record.

Affected systems

Version check

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

Ubuntu97 products
  • linux< 5.4.0-136.153 | < 5.15.0-57.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1093.101 | < 5.15.0-1027.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 7d5509fa0d3ddfe252b4418513e493ac98de3317, < 903f7d322c17d8e306d766404b4604e81653902a | ≥ 7d5509fa0d3ddfe252b4418513e493ac98de3317, < 8844c750eeb03452e2b3319c27a526f447b82596 | ≥ 7d5509fa0d3ddfe252b4418513e493ac98de3317, < f8162aed962be8fa07445b2b5928e84ab40dd8d7 | ≥ 7d5509fa0d3ddfe252b4418513e493ac98de3317, < 0559d91ee3a2cd81b15ad5cd507539d6da867f88 | ≥ 7d5509fa0d3ddfe252b4418513e493ac98de3317, < c2e1cfefcac35e0eea229e148c8284088ce437b5 | 5.1
  • linux_kernel≥ 5.1, < 5.4.215 | ≥ 5.5, < 5.10.146 | ≥ 5.11, < 5.15.71 | ≥ 5.16, < 5.19.12 | 6.0:rc1 | 6.0:rc2 | 6.0:rc3 | 6.0:rc4 | 6.0:rc5 | 6.0:rc6
Debian1 product
  • linux< 6.0.2-1

3 vendors · 100 products

References

9 links