25 lines
744 B
Diff
25 lines
744 B
Diff
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commit a746c35822e557766d1871ec976490a71e6962d9
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Author: Zhi Li <yieli@redhat.com>
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Date: Wed Apr 5 12:08:10 2023 -0400
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rpcdebug: avoid buffer underflow if read() returns 0
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Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2176740
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Signed-off-by: Zhi Li <yieli@redhat.com>
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Signed-off-by: Steve Dickson <steved@redhat.com>
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diff --git a/tools/rpcdebug/rpcdebug.c b/tools/rpcdebug/rpcdebug.c
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index 68206cc5..ec05179e 100644
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--- a/tools/rpcdebug/rpcdebug.c
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+++ b/tools/rpcdebug/rpcdebug.c
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@@ -257,7 +257,7 @@ get_flags(char *module)
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perror(filename);
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exit(1);
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}
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- if ((len = read(sysfd, buffer, sizeof(buffer))) < 0) {
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+ if ((len = read(sysfd, buffer, sizeof(buffer))) <= 0) {
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perror("read");
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exit(1);
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}
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