Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-04 12:16:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

nfs: fix memory leak in error path of nfs4_do_reclaim

Browse Source 
commit 8f6a7c9467 upstream.

Commit c77e22834a ("NFSv4: Fix a potential sleep while atomic in
nfs4_do_reclaim()") separate out the freeing of the state owners from
nfs4_purge_state_owners() and finish it outside the rcu lock.
However, the error path is omitted. As a result, the state owners in
"freeme" will not be released.
Fix it by adding freeing in the error path.

Fixes: c77e22834a ("NFSv4: Fix a potential sleep while atomic in nfs4_do_reclaim()")
Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com>
Cc: stable@vger.kernel.org # v5.3+
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Li Lingfeng 2024-09-04 20:34:57 +08:00 committed by Greg Kroah-Hartman
parent 1524f792e0
commit b2d1ef31ec
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
fs/nfs/nfs4state.c
View File

@ -1953,6 +1953,7 @@ static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recov
set_bit(ops->owner_flag_bit, &sp->so_flags);
nfs4_put_state_owner(sp);
status = nfs4_recovery_handle_error(clp, status);
nfs4_free_state_owners(&freeme);
return (status != 0) ? status : -EAGAIN;
}