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| author | Wentao_Liang <Wentao_Liang_g@163.com> | 2022-03-08 09:18:11 +0100 |
|---|---|---|
| committer | Cédric Le Goater <clg@kaod.org> | 2022-03-08 09:18:11 +0100 |
| commit | 05e6e40a869cc7e4492c5ffc8161005bbb7be986 (patch) | |
| tree | 129f4ba474e6f31f0c72f5a22db6fc95a2b923fc /hw/arm | |
| parent | b49872aa8fc0f3f5a3036cc37aa2cb5c92866f33 (diff) | |
| download | qemu-05e6e40a869cc7e4492c5ffc8161005bbb7be986.zip qemu-05e6e40a869cc7e4492c5ffc8161005bbb7be986.tar.gz qemu-05e6e40a869cc7e4492c5ffc8161005bbb7be986.tar.bz2 | |
aspeed: Fix a potential memory leak bug in write_boot_rom()
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>
Reviewed-by: Peter Maydell <peter.maydell@linaro.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>
Diffstat (limited to 'hw/arm')
| -rw-r--r-- | hw/arm/aspeed.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c index 11558b3..b71bc25 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, |