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| author | Al Viro <viro@zeniv.linux.org.uk> | 2020-04-27 10:26:22 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-04-27 10:37:14 -0400 |
| commit | b0d3869ce9eeacbb1bbd541909beeef4126426d5 (patch) | |
| tree | d710d97e4dfff49cea1b0267bf0bfb149e7bcd04 /drivers/clk/clk-nomadik.c | |
| parent | 3815f1be546e752327b5868af103ccdddcc4db77 (diff) | |
| download | linux-b0d3869ce9eeacbb1bbd541909beeef4126426d5.tar.gz | |
propagate_one(): mnt_set_mountpoint() needs mount_lock
... to protect the modification of mp->m_count done by it. Most of
the places that modify that thing also have namespace_lock held,
but not all of them can do so, so we really need mount_lock here.
Kudos to Piotr Krysiuk <piotras@gmail.com>, who'd spotted a related
bug in pivot_root(2) (fixed unnoticed in 5.3); search for other
similar turds has caught out this one.
Cc: stable@kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/clk/clk-nomadik.c')
0 files changed, 0 insertions, 0 deletions