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From a195869e527df27451bee8b68108abd005976b2d Mon Sep 17 00:00:00 2001
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From: Lukas Slebodnik <lslebodn@redhat.com>
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Date: Tue, 31 Jul 2018 21:03:38 +0000
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Subject: [PATCH] SSS_CERT: Close file descriptors after executing p11_child
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We can call cert_to_ssh_key_step from cert_to_ssh_key_done and thus
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p11_child can be executed more time. We created pipes for each call
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but destructor for state->io can close just last one.
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It's better to manually close pipes with macro PIPE_FD_CLOSE.
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that macro set file descriptor to -1 and destructor will not try
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to close them 2nd time. Destructor will cover just edge cases.
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Merges: https://pagure.io/SSSD/sssd/pull-request/3793
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Resolves:
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https://pagure.io/SSSD/sssd/issue/3794
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Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
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(cherry picked from commit a76f96ac143128c11bdb975293d667aca861cd91)
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DOWNSTREAM:
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Resolves: rhbz#1610667 - sssd_ssh leaks file descriptors when more than one certificate is converted into an SSH key
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---
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src/util/cert/cert_common_p11_child.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/src/util/cert/cert_common_p11_child.c b/src/util/cert/cert_common_p11_child.c
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index 17e97eeeeb1956ca6d2bbf048445117029b10dde..aacdb5c475274234fd18d5eca23ee5f9c9288c3e 100644
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--- a/src/util/cert/cert_common_p11_child.c
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+++ b/src/util/cert/cert_common_p11_child.c
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@@ -255,6 +255,9 @@ static void cert_to_ssh_key_done(int child_status,
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int ret;
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bool valid = false;
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+ PIPE_FD_CLOSE(state->io->read_from_child_fd);
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+ PIPE_FD_CLOSE(state->io->write_to_child_fd);
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+
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if (WIFEXITED(child_status)) {
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if (WEXITSTATUS(child_status) != 0) {
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DEBUG(SSSDBG_OP_FAILURE,
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--
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2.17.1
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