[gentoo-commits] proj/steve:cuse commit in: /

[Michał Górny]

commit:     f0d6606d87d78abd643d758da79a0f5869bf9321
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Tue Nov 18 07:49:52 2025 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Tue Nov 18 07:49:52 2025 +0000
URL:        https://gitweb.gentoo.org/proj/steve.git/commit/?id=f0d6606d

Block returning more tokens than held

Signed-off-by: Michał Górny <mgorny <AT> gentoo.org>

 steve.cxx | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/steve.cxx b/steve.cxx
index 6d632ce..6b47968 100644
--- a/steve.cxx
+++ b/steve.cxx
@@ -207,6 +207,16 @@ static void steve_write(
                return;
        }
 
+       if (state->processes[fi->fh].tokens_held < size) {
+               fprintf(stderr, "Warning: process %ld tried to return %zd 
tokens while holding only %d tokens, capping\n",
+                               fi->fh, size, 
state->processes[fi->fh].tokens_held);
+               size = state->processes[fi->fh].tokens_held;
+       }
+       if (size == 0) {
+               fuse_reply_err(req, ENOSPC);
+               return;
+       }
+
        state->tokens += size;
        state->processes[fi->fh].tokens_held -= size;
        if (state->verbose)