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[PATCH] aspeed: Fix a potential memory leak bug in write_boot_rom()
From: |
Cédric Le Goater |
Subject: |
[PATCH] aspeed: Fix a potential memory leak bug in write_boot_rom() |
Date: |
Wed, 2 Mar 2022 09:33:08 +0100 |
From: Wentao_Liang <Wentao_Liang_g@163.com>
A memory chunk is allocated with g_new0() and assigned to the variable
'storage'. However, if the branch takes true, there will be only an
error report but not a free operation for 'storage' before function
returns. As a result, a memory leak bug is triggered.
Use g_autofree to fix the issue.
Suggested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Wentao_Liang <Wentao_Liang_g@163.com>
[ clg: reworked the commit log ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
hw/arm/aspeed.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 11558b327bc9..b71bc2559baa 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -246,7 +246,7 @@ static void write_boot_rom(DriveInfo *dinfo, hwaddr addr,
size_t rom_size,
Error **errp)
{
BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
- uint8_t *storage;
+ g_autofree void *storage = NULL;
int64_t size;
/* The block backend size should have already been 'validated' by
@@ -262,14 +262,13 @@ static void write_boot_rom(DriveInfo *dinfo, hwaddr addr,
size_t rom_size,
rom_size = size;
}
- storage = g_new0(uint8_t, rom_size);
+ storage = g_malloc0(rom_size);
if (blk_pread(blk, 0, storage, rom_size) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr);
- g_free(storage);
}
static void aspeed_board_init_flashes(AspeedSMCState *s,
--
2.34.1
- [PATCH] aspeed: Fix a potential memory leak bug in write_boot_rom(),
Cédric Le Goater <=