dm btree remove: fix use after free in rebalance_children()
stable inclusion from stable-v5.10.88 commit 0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3 bugzilla: 186058 https://gitee.com/openeuler/kernel/issues/I4QW6A Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3 -------------------------------- commit 1b8d2789 upstream. Move dm_tm_unlock() after dm_tm_dec(). Cc: stable@vger.kernel.org Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NMike Snitzer <snitzer@redhat.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NChen Jun <chenjun102@huawei.com> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
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