Description

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

PCI: Fix reset_method_store() memory leak

In reset_method_store(), a string is allocated via kstrndup() and assigned
to the local "options". options is then used in with strsep() to find
spaces:

while ((name = strsep(&options, " ")) != NULL) {

If there are no remaining spaces, then options is set to NULL by strsep(),
so the subsequent kfree(options) doesn't free the memory allocated via
kstrndup().

Fix by using a separate tmp_options to iterate with strsep() so options is
preserved.

Classification

CVE ID: CVE-2024-56745

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.08% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/403efb4457c0c8f8f51e904cc57d39193780c6bd
https://git.kernel.org/stable/c/931d07ccffcc3614f20aaf602b31e89754e21c59
https://git.kernel.org/stable/c/8e098baf6bc3f3a6aefc383509aba07e202f7ee0
https://git.kernel.org/stable/c/543d0eb40e45c6a51f1bff02f417b602e54472d5
https://git.kernel.org/stable/c/fe6fae61f3b993160aef5fe2b7141a83872c144f
https://git.kernel.org/stable/c/2985b1844f3f3447f2d938eff1ef6762592065a5

Timeline