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1870ddcd94
When an unqualified kprobe target exists in both vmlinux and a loaded module, number_of_same_symbols() returns a count greater than 1, causing kprobe attachment to fail with -EADDRNOTAVAIL even though the vmlinux symbol is unambiguous. When no module qualifier is given and the symbol is found in vmlinux, return the vmlinux-only count without scanning loaded modules. This preserves the existing behavior for all other cases: - Symbol only in a module: vmlinux count is 0, falls through to module scan as before. - Symbol qualified with MOD:SYM: mod != NULL, unchanged path. - Symbol ambiguous within vmlinux itself: count > 1 is returned as-is. Fixes:926fe783c8("tracing/kprobes: Fix symbol counting logic by looking at modules as well") Fixes:9d8616034f("tracing/kprobes: Add symbol counting check when module loads") Suggested-by: Ihor Solodrai <ihor.solodrai@linux.dev> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Ihor Solodrai <ihor.solodrai@linux.dev> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com> Link: https://lore.kernel.org/r/20260407203912.1787502-2-andrey.grodzovsky@crowdstrike.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>