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| author | Zheyu Ma <zheyuma97@gmail.com> | 2024-07-03 01:13:03 +0200 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2024-07-23 21:00:31 +0300 |
| commit | 827497dcfe97e0a4e646cfe16f16bc11a8804bbe (patch) | |
| tree | 7312da38e7e4470ffe092394e3791817b2e063b2 | |
| parent | d5373d7bdbee807a9795eb2126e32e1ed34cf8ba (diff) | |
hw/nvme: fix memory leak in nvme_dsm
The allocated memory to hold LBA ranges leaks in the nvme_dsm function. This
happens because the allocated memory for iocb->range is not freed in all
error handling paths.
Fix this by adding a free to ensure that the allocated memory is properly freed.
ASAN log:
==3075137==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 480 byte(s) in 6 object(s) allocated from:
#0 0x55f1f8a0eddd in malloc llvm/compiler-rt/lib/asan/asan_malloc_linux.cpp:129:3
#1 0x7f531e0f6738 in g_malloc (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x5e738)
#2 0x55f1faf1f091 in blk_aio_get block/block-backend.c:2583:12
#3 0x55f1f945c74b in nvme_dsm hw/nvme/ctrl.c:2609:30
#4 0x55f1f945831b in nvme_io_cmd hw/nvme/ctrl.c:4470:16
#5 0x55f1f94561b7 in nvme_process_sq hw/nvme/ctrl.c:7039:29
Cc: qemu-stable@nongnu.org
Fixes: d7d1474fd85d ("hw/nvme: reimplement dsm to allow cancellation")
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
(cherry picked from commit c510fe78f1b7c966524489d6ba752107423b20c8)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
| -rw-r--r-- | hw/nvme/ctrl.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index 027d67f10b..ed56ad40b3 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -2465,6 +2465,7 @@ next: done: iocb->aiocb = NULL; iocb->common.cb(iocb->common.opaque, iocb->ret); + g_free(iocb->range); qemu_aio_unref(iocb); } |