forked from jianmu/TencentOS-kernel
f1d7901b24
commit 4965b8cd1bc1ffb017e5c58e622da82b55e49414 upstream.
vfree() is being called on paged buffer allocated
using alloc_page() and mapped using vmap().
Freeing of pages in vfree() relies on nr_pages of
struct vm_struct. vmap() does not update nr_pages.
It can lead to memory leaks.
Fixes: ddaf29fd9bb6 ("firmware: Free temporary page table after vmapping")
Signed-off-by: Prateek Sood <prsood@codeaurora.org>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1597957070-27185-1-git-send-email-prsood@codeaurora.org
Cc: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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| .. | ||
| builtin | ||
| Kconfig | ||
| Makefile | ||
| fallback.c | ||
| fallback.h | ||
| fallback_table.c | ||
| firmware.h | ||
| main.c | ||