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author | Tom Rix <trix@redhat.com> | 2020-06-12 15:45:49 -0700 |
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committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2020-06-26 08:43:14 -0400 |
commit | 4659ed7cc8514369043053463514408ca16ad6f3 (patch) | |
tree | cd1945b45f69bf47895c99b42d794622d18a81b6 /fs/9p | |
parent | b7ade38165ca0001c5a3bd5314a314abbbfbb1b7 (diff) | |
download | lwn-4659ed7cc8514369043053463514408ca16ad6f3.tar.gz lwn-4659ed7cc8514369043053463514408ca16ad6f3.zip |
nfs: Fix memory leak of export_path
The try_location function is called within a loop by nfs_follow_referral.
try_location calls nfs4_pathname_string to created the export_path.
nfs4_pathname_string allocates the memory. export_path is stored in the
nfs_fs_context/fs_context structure similarly as hostname and source.
But whereas the ctx hostname and source are freed before assignment,
export_path is not. So if there are multiple loops, the new export_path
will overwrite the old without the old being freed.
So call kfree for export_path.
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/9p')
0 files changed, 0 insertions, 0 deletions