CVE-2025-38183

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2025-38183
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38183.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38183
Downstream
Related
Published
2025-07-04T13:37:10.253Z
Modified
2026-05-18T05:59:30.400288719Z
Summary
net: lan743x: fix potential out-of-bounds write in lan743x_ptp_io_event_clock_get()
Details

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

net: lan743x: fix potential out-of-bounds write in lan743xptpioeventclock_get()

Before calling lan743xptpioeventclockget(), the 'channel' value is checked against the maximum value of PCI11X1XPTPIOMAXCHANNELS(8). This seems correct and aligns with the PTP interrupt status register (PTPINT_STS) specifications.

However, lan743xptpioeventclockget() writes to ptp->extts[] with only LAN743XPTPNEXTTS(4) elements, using channel as an index:

lan743x_ptp_io_event_clock_get(..., u8 channel,...)
{
    ...
    /* Update Local timestamp */
    extts = &ptp->extts[channel];
    extts->ts.tv_sec = sec;
    ...
}

To avoid an out-of-bounds write and utilize all the supported GPIO inputs, set LAN743XPTPN_EXTTS to 8.

Detected using the static analysis tool - Svace.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38183.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
60942c397af6094c04406b77982314dfe69ef3c4
Fixed
e8d48201a132f4aab31351c19a802c5a5ae820fa
Fixed
66bba1fd5bad548c03f7e42669a59f3f4d8211cc
Fixed
41017bd66c533f7af912c58273c7dfd5de0065d4
Fixed
4da0d23516857230b8e9b3022e25422ee2e2ba80
Fixed
e353b0854d3a1a31cb061df8d022fbfea53a0f24

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38183.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.18.0
Fixed
6.1.142
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.95
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.35
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.15.4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38183.json"