CVE-2025-38183
published 2025-07-04CVE-2025-38183: 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…
high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
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.
Affected
29 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.147-1 (bookworm) | linux 6.1.147-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.147-1 (bookworm) | linux 6.1.147-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 60942c397af6094c04406b77982314dfe69ef3c4 < e8d48201a132f4aab31351c19a802c5a5ae820fa | e8d48201a132f4aab31351c19a802c5a5ae820fa |
| linux | linux | >= 60942c397af6094c04406b77982314dfe69ef3c4 < 66bba1fd5bad548c03f7e42669a59f3f4d8211cc | 66bba1fd5bad548c03f7e42669a59f3f4d8211cc |
| linux | linux | >= 60942c397af6094c04406b77982314dfe69ef3c4 < 41017bd66c533f7af912c58273c7dfd5de0065d4 | 41017bd66c533f7af912c58273c7dfd5de0065d4 |
| linux | linux | >= 60942c397af6094c04406b77982314dfe69ef3c4 < 4da0d23516857230b8e9b3022e25422ee2e2ba80 | 4da0d23516857230b8e9b3022e25422ee2e2ba80 |
| linux | linux | >= 60942c397af6094c04406b77982314dfe69ef3c4 < e353b0854d3a1a31cb061df8d022fbfea53a0f24 | e353b0854d3a1a31cb061df8d022fbfea53a0f24 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.147-1 | 6.1.147-1 |
| linux | linux_kernel | >= 0 < 6.12.35-1 | 6.12.35-1 |
| linux | linux_kernel | >= 0 < 6.12.35-1 | 6.12.35-1 |
| linux | linux_kernel | >= 0 < 6.8.0-100.100 | 6.8.0-100.100 |
| linux | linux_kernel | >= 5.18 < 6.1.142 | 6.1.142 |
| linux | linux_kernel | >= 6.13 < 6.15.4 | 6.15.4 |
| linux | linux_kernel | >= 6.2 < 6.6.95 | 6.6.95 |
| linux | linux_kernel | >= 6.7 < 6.12.35 | 6.12.35 |
| msrc | azl3_kernel_6.6.92.2-2_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.96.1-1_on_azure_linux_3.0 | — | — |
| ubuntu | linux-aws | — | — |
| ubuntu | linux-aws-6.8 | — | — |
| ubuntu | linux-gkeop | — | — |
| ubuntu | linux-nvidia | — | — |
| ubuntu | linux-nvidia-6.8 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH