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Fix a crash in intercept mode running a command with NULL argv[0].

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Newer Linux kernels replace a NULL argv[0] with the empty string,
we should as well.

--HG--
branch : 1.9
This commit is contained in:
Todd C. Miller
2023-07-12 09:29:00 -06:00
parent 8f3b92ee89
commit 24cc3f4c91
1 changed files with 1 additions and 1 deletions
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src/exec_ptrace.c
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@@ -1795,7 +1795,7 @@ ptrace_intercept_execve(pid_t pid, struct intercept_closure *closure)
} }
/* We can only pass the pathname to exececute via argv[0] (plugin API). */ /* We can only pass the pathname to exececute via argv[0] (plugin API). */
orig_argv0 = argv[0]; orig_argv0 = argv[0] ? argv[0] : (char *)"";
argv[0] = pathname; argv[0] = pathname;
if (argc == 0) { if (argc == 0) {
/* Rewrite an empty argv[] with the path to execute. */ /* Rewrite an empty argv[] with the path to execute. */