CVE-2025-38054
In the Linux kernel, the following vulnerability has been resolved:
ptp: ocp: Limit signal/freq counts in summary output functions
The debugfs summary output could access uninitialized elements in the freq_in[] and signal_out[] arrays, causing NULL pointer dereferences and triggering a kernel Oops (page_fault_oops). This patch adds u8 fields (nr_freq_in, nr_signal_out) to track the number of initialized elements, with a maximum of 4 per array. The summary output functions are updated to respect these limits, preventing out-of-bounds access and ensuring safe array handling.
Widen the label variables because the change confuses GCC about max length of the strings.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 6.9 | 6.12.31 |
| linux / linux_kernel | 6.13 | 6.14.9 |
| linux / linux_kernel | 6.15-rc1 | 6.15-rc1.x |
| linux / linux_kernel | 6.15-rc2 | 6.15-rc2.x |
| linux / linux_kernel | 6.15-rc3 | 6.15-rc3.x |
| linux / linux_kernel | 6.15-rc4 | 6.15-rc4.x |
| linux / linux_kernel | 6.15-rc5 | 6.15-rc5.x |
| linux / linux_kernel | 6.15-rc6 | 6.15-rc6.x |
| linux / linux_kernel | 6.15-rc7 | 6.15-rc7.x |
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