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| author | Al Viro <[email protected]> | 2019-05-09 06:32:28 +0000 |
|---|---|---|
| committer | Al Viro <[email protected]> | 2019-05-09 06:32:50 +0000 |
| commit | 05883eee857eab4693e7d13ebab06716475c5754 (patch) | |
| tree | 686a142254d360a963f010bb573f4db5fb83e7bc /lib/string_helpers.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next (diff) | |
| download | kernel-05883eee857eab4693e7d13ebab06716475c5754.tar.gz kernel-05883eee857eab4693e7d13ebab06716475c5754.zip | |
do_move_mount(): fix an unsafe use of is_anon_ns()
What triggers it is a race between mount --move and umount -l
of the source; we should reject it (the source is parentless *and*
not the root of anon namespace at that), but the check for namespace
being an anon one is broken in that case - is_anon_ns() needs
ns to be non-NULL. Better fixed here than in is_anon_ns(), since
the rest of the callers is guaranteed to get a non-NULL argument...
Reported-by: [email protected]
Signed-off-by: Al Viro <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions