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Revert "llc: Improve setsockopt() handling of malformed user input"

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This reverts commit 981d647c6f which is
commit 1465036b10be4b8b00eb31c879e86de633ad74c1 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I33d7231dae0f23df8750010315515440e2687a9c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
2024-12-27 16:19:25 +00:00
parent daaf475999
commit 24ffe8caa6
1 changed files with 1 additions and 1 deletions
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2
net/llc/af_llc.c
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@@ -1099,7 +1099,7 @@ static int llc_ui_setsockopt(struct socket *sock, int level, int optname,
lock_sock(sk);
if (unlikely(level != SOL_LLC || optlen != sizeof(int)))
goto out;
rc = copy_safe_from_sockptr(&opt, sizeof(opt), optval, optlen);
rc = copy_from_sockptr(&opt, optval, sizeof(opt));
if (rc)
goto out;
rc = -EINVAL;