Linux kernel trace event history function buffer overflow DoS

The vulnerability of the histfieldname function in the kernel/trace/traceeventshist.c module, which supports kernel tracing in Linux operating systems, is related to the pointer manipulation. Exploiting this vulnerability could allow a remote attacker to compromise the confidentiality, integrity,...

CVE-2026-64028

In the Linux kernel, the following vulnerability has been resolved: tracing: Avoid NULL return from histfieldname on truncation histfieldname returns "" everywhere except the fully-qualified VARREF/EXPR case, where snprintf truncation returns NULL early and bypasses the bottom NULL-"" guard...

CVE-2026-64028: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tracing: Avoid NULL return from histfieldname on truncation histfieldname returns "" everywhere except the fully-qualified VARREF/EXPR case, where snprintf truncation returns NULL early and bypasses the bottom NULL-"" guard...