CVE-2026-43373

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Source
https://cve.org/CVERecord?id=CVE-2026-43373
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43373.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-43373
Downstream
Related
Published
2026-05-08T14:21:23Z
Modified
2026-08-13T09:42:17Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
net: ncsi: fix skb leak in error paths
Details

In the Linux kernel, the following vulnerability has been resolved:

net: ncsi: fix skb leak in error paths

Early return paths in NCSI RX and AEN handlers fail to release the received skb, resulting in a memory leak.

Specifically, ncsi_aen_handler() returns on invalid AEN packets without consuming the skb. Similarly, ncsi_rcv_rsp() exits early when failing to resolve the NCSI device, response handler, or request, leaving the skb unfreed.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43373.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
138635cc27c9737f940c3aa80912ff7a61c825af
Fixed
9891d7f4f1ede473c54b49776ae07755083eef06
Fixed
fef5aa6e3bcf3c8053307642663a63b7362d7552
Fixed
81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a
Fixed
59962588197863d0d746879f193905c0c6b3df49
Fixed
553366c271479c0d571dd1bb5d1bcde4747fb82e
Fixed
b70c4e5e711931cdd56e6e905737b72f1e649189
Fixed
87138dde2d6937b12b967f28fe598a7d59000ae4
Fixed
5c3398a54266541610c8d0a7082e654e9ff3e259

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43373.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.8.0
Fixed
5.10.253
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.203
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.167
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.130
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.78
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.19
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
6.19.9

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43373.json"