5.5

CVE-2022-50321: wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit()

Analyzed
AliasesUBUNTU-CVE-2022-50321DEBIAN-CVE-2022-50321
Published 15-09-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50321 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% 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
0.16%
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 5 · Related 5
SUSE-SU-2025:03614-1SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1SUSE-SU-2025:3716-1SUSE-SU-2025:3761-1

Timeline

  1. 15-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit() The brcmf_netdev_start_xmit() returns NETDEV_TX_OK without freeing skb in case of pskb_expand_head() fails, add dev_kfree_skb() to fix it. Compile tested only.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% 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.

Ubuntu120 products
  • linuxAll versions (No fix recorded) | < 5.4.0-152.169 | < 5.15.0-75.82
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1104.112 | < 5.15.0-1038.43
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 270a6c1f65fe68a28a5d39cd405592c550b496c7, < 4c55fdebc1c358de96bfab52ed309d58a3ba66ef | ≥ 270a6c1f65fe68a28a5d39cd405592c550b496c7, < e5d01e85cf46628647cd696cb72ba4659b18967f | ≥ 270a6c1f65fe68a28a5d39cd405592c550b496c7, < d869a189505224601e310c7769cb90b0e2f60b31 | ≥ 270a6c1f65fe68a28a5d39cd405592c550b496c7, < e08e6812efb6a8c676e733de0518594d1517e0d9 | ≥ 270a6c1f65fe68a28a5d39cd405592c550b496c7, < e8ef89e5b89ee041a94eecfb6c31fcc237f9168c | ≥ 270a6c1f65fe68a28a5d39cd405592c550b496c7, < 7f159116d620615779adbf88a5d94713702216d8 | ≥ 270a6c1f65fe68a28a5d39cd405592c550b496c7, < 3a4d18318f473e97d628f410215b3fac32d07aed | ≥ 270a6c1f65fe68a28a5d39cd405592c550b496c7, < 212fde3fe76e962598ce1d47b97cc78afdfc71b3 | 4.13
  • linux_kernel≥ 4.13, < 4.14.308 | ≥ 4.15, < 4.19.276 | ≥ 4.20, < 5.4.235 | ≥ 5.5, < 5.10.173 | ≥ 5.11, < 5.15.99 | ≥ 5.16, < 6.1.16 | ≥ 6.2, < 6.2.3
Debian1 product
  • linux< 6.1.20-1

3 vendors · 123 products

References

12 links
Show all 12 references