50 lines
1.6 KiB
Diff
50 lines
1.6 KiB
Diff
From 5feea5da42b98302006f2c82ab9c22d43779e0c8 Mon Sep 17 00:00:00 2001
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From: Sergio Arroutbi <sarroutb@redhat.com>
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Date: Fri, 27 Sep 2024 12:12:48 +0200
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Subject: [PATCH] Fix potential race condition
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Guard the modification of "entry_counter" and the read
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used to decide whether to modify "entry_counter" with the
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same set of locks
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Resolves: #478
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Signed-off-by: Sergio Arroutbi <sarroutb@redhat.com>
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---
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src/pins/pkcs11/clevis-pkcs11-afunix-socket-unlock.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/src/pins/pkcs11/clevis-pkcs11-afunix-socket-unlock.c b/src/pins/pkcs11/clevis-pkcs11-afunix-socket-unlock.c
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index a6ecc63..b1e2004 100644
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--- a/src/pins/pkcs11/clevis-pkcs11-afunix-socket-unlock.c
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+++ b/src/pins/pkcs11/clevis-pkcs11-afunix-socket-unlock.c
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@@ -70,21 +70,23 @@ get_control_socket_name(const char* file_sock, char* control_sock, uint32_t cont
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}
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static void insert_device(const char* dev) {
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+ pthread_mutex_lock(&mutex);
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if(MAX_ENTRIES == entry_counter) {
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+ pthread_mutex_unlock(&mutex);
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perror("No more entries accepted\n");
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return;
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}
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- pthread_mutex_lock(&mutex);
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strncpy(keys[entry_counter].dev, dev, MAX_DEVICE);
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pthread_mutex_unlock(&mutex);
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}
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static void insert_key(const char* key) {
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+ pthread_mutex_lock(&mutex);
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if(MAX_ENTRIES == entry_counter) {
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+ pthread_mutex_unlock(&mutex);
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perror("No more entries accepted\n");
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return;
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}
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- pthread_mutex_lock(&mutex);
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strncpy(keys[entry_counter++].key, key, MAX_KEY);
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pthread_mutex_unlock(&mutex);
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}
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--
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2.46.2
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