47 lines
1.3 KiB
Diff
47 lines
1.3 KiB
Diff
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autofs-5.1.8 - fix unterminated read in handle_cmd_pipe_fifo_message()
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From: Ian Kent <raven@themaw.net>
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As Coverity points out the buffer in handle_cmd_pipe_fifo_message()
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could be overflowed and end up not terminated so fix it.
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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CHANGELOG | 1 +
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daemon/automount.c | 7 ++++++-
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2 files changed, 7 insertions(+), 1 deletion(-)
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--- autofs-5.1.7.orig/CHANGELOG
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+++ autofs-5.1.7/CHANGELOG
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@@ -130,6 +130,7 @@
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- switch to application wide command pipe.
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- get rid of unused field submnt_count.
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- fix mount tree startup reconnect.
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+- fix unterminated read in handle_cmd_pipe_fifo_message().
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25/01/2021 autofs-5.1.7
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- make bind mounts propagation slave by default.
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--- autofs-5.1.7.orig/daemon/automount.c
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+++ autofs-5.1.7/daemon/automount.c
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@@ -1419,7 +1419,6 @@ static void handle_cmd_pipe_fifo_message
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int ret;
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long pri;
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- memset(buffer, 0, sizeof(buffer));
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ret = read(fd, &buffer, sizeof(buffer));
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if (ret < 0) {
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char *estr = strerror_r(errno, buf, MAX_ERR_BUF);
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@@ -1427,6 +1426,12 @@ static void handle_cmd_pipe_fifo_message
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"read on command pipe returned error: %s", estr);
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return;
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}
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+ if (ret >= sizeof(buffer)) {
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+ error(LOGOPT_ANY,
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+ "read overrun on command pipe message");
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+ return;
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+ }
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+ buffer[ret] = 0;
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sep = strrchr(buffer, ' ');
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if (!sep) {
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