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uacce: vma_close clears q->qfrs when freeing qfrs
authorZhangfei Gao <zhangfei.gao@linaro.org>
Thu, 11 May 2023 09:59:21 +0000 (17:59 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 31 May 2023 18:00:26 +0000 (19:00 +0100)
commit282c22a8bbeabd272c048ae243238638c9b7cefe
tree7c14f22cc0a485648171b0afa40378fc480d87fbtree | snapshot
parentdf1b056d489d98c7c45fa89627102dd34b44496fcommit | diff
uacce: vma_close clears q->qfrs when freeing qfrs

vma_close frees qfrs but not clears q->qfrs, which still points
to the freed object, leading to subsequent mmap fail.
So vma_close clears q->qfrs as well.

Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Link: https://lore.kernel.org/r/20230511095921.9331-3-zhangfei.gao@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/misc/uacce/uacce.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git