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authorKirill Korotaev <dev@openvz.org>2006-07-11 04:37:37 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2006-07-24 20:35:27 -0700
commit1dff316b54b9db4e17f191b4e12f032cde57b921 (patch)
tree4043cc8c1cc9f0dfbf3564385de14be25cba6c7a /fs
parentb66a64d8fa30e003494040d4a7eb6587fa3fffcc (diff)
fix fdset leakage
When found, it is obvious. nfds calculated when allocating fdsets is rewritten by calculation of size of fdtable, and when we are unlucky, we try to free fdsets of wrong size. Found due to OpenVZ resource management (User Beancounters). Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
-rw-r--r--fs/file.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/file.c b/fs/file.c
index 55f4e702256..4c2cacca4e2 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -277,11 +277,13 @@ static struct fdtable *alloc_fdtable(int nr)
} while (nfds <= nr);
new_fds = alloc_fd_array(nfds);
if (!new_fds)
- goto out;
+ goto out2;
fdt->fd = new_fds;
fdt->max_fds = nfds;
fdt->free_files = NULL;
return fdt;
+out2:
+ nfds = fdt->max_fdset;
out:
if (new_openset)
free_fdset(new_openset, nfds);