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tracing: Use strscpy() instead of strcpy() in trace_sched_switch

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Replace strcpy() with strscpy() in __trace_find_cmdline() for
consistency with the existing strscpy() call in the same function,
and to avoid potential buffer overflow as flagged by the Kernel
Self Protection Project.

Link: https://patch.msgid.link/20260705173648.5418-1-posheng.lin.tw@gmail.com
Signed-off-by: Po-Sheng Lin <posheng.lin.tw@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Po-Sheng Lin 2026-07-06 01:36:48 +08:00 committed by Steven Rostedt
parent b5cc230af5
commit dca6a22aee
1 changed files with 3 additions and 3 deletions
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6
kernel/trace/trace_sched_switch.c
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@ -286,12 +286,12 @@ static void __trace_find_cmdline(int pid, char comm[])
int tpid;
if (!pid) {
strcpy(comm, "<idle>");
strscpy(comm, "<idle>", TASK_COMM_LEN);
return;
}
if (WARN_ON_ONCE(pid < 0)) {
strcpy(comm, "<XXX>");
strscpy(comm, "<XXX>", TASK_COMM_LEN);
return;
}
@ -304,7 +304,7 @@ static void __trace_find_cmdline(int pid, char comm[])
return;
}
}
strcpy(comm, "<...>");
strscpy(comm, "<...>", TASK_COMM_LEN);
}
void trace_find_cmdline(int pid, char comm[])