CVE - CVE-2025-38183

CVE-ID
CVE-2025-38183	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: net: lan743x: fix potential out-of-bounds write in lan743x_ptp_io_event_clock_get() Before calling lan743x_ptp_io_event_clock_get(), the 'channel' value is checked against the maximum value of PCI11X1X_PTP_IO_MAX_CHANNELS(8). This seems correct and aligns with the PTP interrupt status register (PTP_INT_STS) specifications. However, lan743x_ptp_io_event_clock_get() writes to ptp->extts[] with only LAN743X_PTP_N_EXTTS(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 LAN743X_PTP_N_EXTTS to 8. Detected using the static analysis tool - Svace.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/41017bd66c533f7af912c58273c7dfd5de0065d4 URL:https://git.kernel.org/stable/c/41017bd66c533f7af912c58273c7dfd5de0065d4 MISC:https://git.kernel.org/stable/c/4da0d23516857230b8e9b3022e25422ee2e2ba80 URL:https://git.kernel.org/stable/c/4da0d23516857230b8e9b3022e25422ee2e2ba80 MISC:https://git.kernel.org/stable/c/66bba1fd5bad548c03f7e42669a59f3f4d8211cc URL:https://git.kernel.org/stable/c/66bba1fd5bad548c03f7e42669a59f3f4d8211cc MISC:https://git.kernel.org/stable/c/e353b0854d3a1a31cb061df8d022fbfea53a0f24 URL:https://git.kernel.org/stable/c/e353b0854d3a1a31cb061df8d022fbfea53a0f24 MISC:https://git.kernel.org/stable/c/e8d48201a132f4aab31351c19a802c5a5ae820fa URL:https://git.kernel.org/stable/c/e8d48201a132f4aab31351c19a802c5a5ae820fa
Assigning CNA
kernel.org
Date Record Created
20250416	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250416)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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