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[Qemu-devel] [PATCH v5 05/24] crypto: Use O_CLOEXEC in qcrypto_random_in
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v5 05/24] crypto: Use O_CLOEXEC in qcrypto_random_init |
Date: |
Thu, 9 May 2019 18:24:39 -0700 |
Avoids leaking the /dev/urandom fd into any child processes.
Reviewed-by: Laurent Vivier <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Reviewed-by: Daniel P. Berrangé <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
crypto/random-platform.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/crypto/random-platform.c b/crypto/random-platform.c
index 260b64564d..6df40744c7 100644
--- a/crypto/random-platform.c
+++ b/crypto/random-platform.c
@@ -42,9 +42,9 @@ int qcrypto_random_init(Error **errp)
#else
/* TBD perhaps also add support for BSD getentropy / Linux
* getrandom syscalls directly */
- fd = open("/dev/urandom", O_RDONLY);
+ fd = open("/dev/urandom", O_RDONLY | O_CLOEXEC);
if (fd == -1 && errno == ENOENT) {
- fd = open("/dev/random", O_RDONLY);
+ fd = open("/dev/random", O_RDONLY | O_CLOEXEC);
}
if (fd < 0) {
--
2.17.1
- [Qemu-devel] [PATCH v5 06/24] crypto: Use getrandom for qcrypto_random_bytes, (continued)
- [Qemu-devel] [PATCH v5 06/24] crypto: Use getrandom for qcrypto_random_bytes, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 01/24] configure: Link test before auto-enabling crypto libraries, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 04/24] crypto: Do not fail for EINTR during qcrypto_random_bytes, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 12/24] linux-user: Initialize pseudo-random seeds for all guest cpus, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 03/24] crypto: Reverse code blocks in random-platform.c, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 11/24] cpus: Initialize pseudo-random seeds for all guest cpus, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 18/24] hw/misc/nrf51_rng: Use qemu_guest_getrandom_nofail, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 05/24] crypto: Use O_CLOEXEC in qcrypto_random_init,
Richard Henderson <=
- [Qemu-devel] [PATCH v5 02/24] crypto: Merge crypto-obj-y into libqemuutil.a, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 14/24] linux-user: Use qemu_guest_getrandom_nofail for AT_RANDOM, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 09/24] ui/vnc: Use gcrypto_random_bytes for start_auth_vnc, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 13/24] linux-user: Call qcrypto_init if not using -seed, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 07/24] crypto: Change the qcrypto_random_bytes buffer type to void*, Richard Henderson, 2019/05/09
- [Qemu-devel] [PATCH v5 08/24] ui/vnc: Split out authentication_failed, Richard Henderson, 2019/05/09