From: Paul Gortmaker <paul.gortmaker@windriver.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org>, Roi Dayan <roid@mellanox.com>,
Mark Bloch <markb@mellanox.com>,
Saeed Mahameed <saeedm@mellanox.com>
Subject: Possible linux-stable mis-backport in ethernet/mellanox/mlx5
Date: Sun, 7 Jun 2020 16:34:25 -0400 [thread overview]
Message-ID: <20200607203425.GD23662@windriver.com> (raw)
I happened to notice this commit:
9ca415399dae - "net/mlx5: Annotate mutex destroy for root ns"
...was backported to 4.19 and 5.4 and v5.6 in linux-stable.
It patches del_sw_root_ns() - which only exists after v5.7-rc7 from:
6eb7a268a99b - "net/mlx5: Don't maintain a case of del_sw_func being
null"
which creates the one line del_sw_root_ns stub function around
kfree(node) by breaking it out of tree_put_node().
In the absense of del_sw_root_ns - the backport finds an identical one
line kfree stub fcn - named del_sw_prio from this earlier commit:
139ed6c6c46a - "net/mlx5: Fix steering memory leak" [in v4.15-rc5]
and then puts the mutex_destroy() into that (wrong) function, instead of
putting it into tree_put_node where the root ns case used to be handled.
Paul.
next reply other threads:[~2020-06-07 20:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-07 20:34 Paul Gortmaker [this message]
2020-06-09 17:29 ` Possible linux-stable mis-backport in ethernet/mellanox/mlx5 Greg Kroah-Hartman
2020-06-10 17:26 ` Paul Gortmaker
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