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SUSE:SLE-15-SP7:GA
grub2.26023
0006-kern-file-Do-not-leak-device_name-on-error...
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File 0006-kern-file-Do-not-leak-device_name-on-error-in-grub_f.patch of Package grub2.26023
From 77a70351615e0b6e66d663e063e9b4ba8ae129a0 Mon Sep 17 00:00:00 2001 From: Daniel Axtens <dja@axtens.net> Date: Fri, 25 Jun 2021 02:19:05 +1000 Subject: [PATCH 06/32] kern/file: Do not leak device_name on error in grub_file_open() If we have an error in grub_file_open() before we free device_name, we will leak it. Free device_name in the error path and null out the pointer in the good path once we free it there. Signed-off-by: Daniel Axtens <dja@axtens.net> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> --- grub-core/kern/file.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/grub-core/kern/file.c b/grub-core/kern/file.c index 58454458c4..ffdcaba05f 100644 --- a/grub-core/kern/file.c +++ b/grub-core/kern/file.c @@ -79,6 +79,7 @@ grub_file_open (const char *name, enum grub_file_type type) device = grub_device_open (device_name); grub_free (device_name); + device_name = NULL; if (! device) goto fail; @@ -131,6 +132,7 @@ grub_file_open (const char *name, enum grub_file_type type) return file; fail: + grub_free (device_name); if (device) grub_device_close (device); -- 2.34.1
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