mdadm/0152-super-gpt.c-Fix-check_return-issue-in-load_gpt.patch

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From 483ff037f1036f5f604e085cf76097a87e2be348 Mon Sep 17 00:00:00 2001
From: Anna Sztukowska <anna.sztukowska@intel.com>
Date: Wed, 24 Jul 2024 11:46:57 +0200
Subject: [PATCH 152/201] super-gpt.c: Fix check_return issue in load_gpt()
Fix check_return issue in load_gpt() reported by SAST analysis in
super-gpt.c.
Signed-off-by: Anna Sztukowska <anna.sztukowska@intel.com>
---
super-gpt.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/super-gpt.c b/super-gpt.c
index a1e9aa9d..ec3cf53f 100644
--- a/super-gpt.c
+++ b/super-gpt.c
@@ -105,7 +105,8 @@ static int load_gpt(struct supertype *st, int fd, char *devname)
return 1;
}
/* Set offset to second block (GPT header) */
- lseek(fd, sector_size, SEEK_SET);
+ if (lseek(fd, sector_size, SEEK_SET) == -1L)
+ goto no_read;
/* Seem to have GPT, load the header */
gpt_head = (struct GPT*)(super+1);
if (read(fd, gpt_head, sizeof(*gpt_head)) != sizeof(*gpt_head))
@@ -118,7 +119,8 @@ static int load_gpt(struct supertype *st, int fd, char *devname)
to_read = __le32_to_cpu(gpt_head->part_cnt) * sizeof(struct GPT_part_entry);
to_read = ((to_read+511)/512) * 512;
/* Set offset to third block (GPT entries) */
- lseek(fd, sector_size*2, SEEK_SET);
+ if (lseek(fd, sector_size * 2, SEEK_SET) == -1L)
+ goto no_read;
if (read(fd, gpt_head+1, to_read) != to_read)
goto no_read;
--
2.41.0