linux-kernel - [PATCH] execve.2: execve also returns E2BIG if a string is too long

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Message-ID: <20231010234153.021826b1@imladris.surriel.com>
Date:   Tue, 10 Oct 2023 23:41:53 -0400
From:   Rik van Riel <riel@...riel.com>
To:     Alejandro Colomar <alx@...nel.org>
Cc:     linux-man@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        kernel-team@...a.com, Eric Biederman <ebiederm@...ssion.com>
Subject: [PATCH] execve.2: execve also returns E2BIG if a string is too long

Document that if a command line or environment string is too long (> MAX_ARG_STRLEN), execve will also return E2BIG.

Signed-off-by: Rik van Riel <riel@...riel.com>
---
 man2/execve.2 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/man2/execve.2 b/man2/execve.2
index 0d9582492ad1..c1a359d01872 100644
--- a/man2/execve.2
+++ b/man2/execve.2
@@ -449,7 +449,7 @@ The total number of bytes in the environment
 .RI ( envp )
 and argument list
 .RI ( argv )
-is too large.
+is too large, or an argument or environment string is too long.
 .TP
 .B EACCES
 Search permission is denied on a component of the path prefix of
-- 
2.41.0