CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's tracing subsystem, where improper handling of synthetic-field strings can lead to buffer overflows due to the use of unsafe string concatenation methods. This flaw could allow attackers to exploit long key lists or field names, potentially leading to arbitrary code execution or system crashes. Linux system administrators and developers utilizing the tracing features should prioritize addressing this vulnerability to mitigate associated risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: tracing: Bound synthetic-field strings with seq_buf The synthetic field helpers build a prefixed synthetic variable name and a generated hist command in fixed MAX_FILTER_STR_VAL buffers. The current code appends those strings with raw strcat(), so long key lists, field names, or saved filters can run past the end of the staging buffers. Build both strings with seq_buf and propagate -E2BIG if either the synthetic variable name or the generated command exceeds MAX_FILTER_STR_VAL. This keeps the existing tracing-side limit while using the helper intended for bounded command construction. [ sdr: Moved struct seq_buf *s for upside-down x-mas tree formatting ]