Failing to close the stderr pipe in verify_signed_buffer() causes
git to run out of file descriptors if there are many calls to
verify_signed_buffer(). An easy way to trigger this is to run

 git log --show-signature --merges | grep "key"

on the linux kernel git repo. Eventually it will fail with

 error: cannot create pipe for gpg: Too many open files
 error: could not run gpg.

Close the stderr pipe so that this can't happen.

Signed-off-by: Stephen Boyd <>
 gpg-interface.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gpg-interface.c b/gpg-interface.c
index 0863c61..2c0bed3 100644
--- a/gpg-interface.c
+++ b/gpg-interface.c
@@ -133,6 +133,8 @@ int verify_signed_buffer(const char *payload, size_t 
        if (gpg_output)
                strbuf_read(gpg_output, gpg.err, 0);
        ret = finish_command(&gpg);
+       if (gpg_output)
+               close(gpg.err);
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to
More majordomo info at

Reply via email to