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Guard empty filename stripping in GetAlertData. - #2358
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atomicturtle merged 1 commit intoOct 12, 2026
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A syscheck alert line of the form Integrity checksum changed for: ' with nothing after the opening quote made strlen zero. Subtracting one from that unsigned length wrapped, and the trailing-quote strip wrote a NUL one byte before the strdup buffer. Require a non-empty payload before stripping, and treat a missing path as NULL like other alert fields. Signed-off-by: Scott R. Shinn <scott@atomicorp.com>
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A syscheck alert line of the form Integrity checksum changed for: ' with nothing after the opening quote made strlen zero. Subtracting one from that unsigned length wrapped, and the trailing-quote strip wrote a NUL one byte before the strdup buffer. Require a non-empty payload before stripping, and treat a missing path as NULL like other alert fields.