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authorLinus Torvalds <torvalds@linux-foundation.org>2022-06-04 17:42:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-06-04 17:42:33 -0700
commitd66016c5cd3d4c474cd24622c511dcd358645613 (patch)
treed743154739b42e4472a45a58e015d40d31dcd410 /fs/cifs/cifsfs.c
parentd0e60d46bc03252b8d4ffaaaa0b371970ac16cda (diff)
parentee3c8019cce254f586b7fc2c5b836c275b275527 (diff)
Merge tag '5.19-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs client fixes from Steve French: "Nine cifs/smb3 client fixes. Includes DFS fixes, some cleanup of leagcy SMB1 code, duplicated message cleanup and a double free and deadlock fix" * tag '5.19-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6: cifs: fix uninitialized pointer in error case in dfs_cache_get_tgt_share cifs: skip trailing separators of prefix paths cifs: update internal module number cifs: version operations for smb20 unneeded when legacy support disabled cifs: do not build smb1ops if legacy support is disabled cifs: fix potential deadlock in direct reclaim cifs: when extending a file with falloc we should make files not-sparse cifs: remove repeated debug message on cifs_put_smb_ses() cifs: fix potential double free during failed mount
Diffstat (limited to 'fs/cifs/cifsfs.c')
-rw-r--r--fs/cifs/cifsfs.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index f539a39d47f5..12c872800326 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -838,7 +838,7 @@ cifs_smb3_do_mount(struct file_system_type *fs_type,
int flags, struct smb3_fs_context *old_ctx)
{
int rc;
- struct super_block *sb;
+ struct super_block *sb = NULL;
struct cifs_sb_info *cifs_sb = NULL;
struct cifs_mnt_data mnt_data;
struct dentry *root;
@@ -934,9 +934,11 @@ out_super:
return root;
out:
if (cifs_sb) {
- kfree(cifs_sb->prepath);
- smb3_cleanup_fs_context(cifs_sb->ctx);
- kfree(cifs_sb);
+ if (!sb || IS_ERR(sb)) { /* otherwise kill_sb will handle */
+ kfree(cifs_sb->prepath);
+ smb3_cleanup_fs_context(cifs_sb->ctx);
+ kfree(cifs_sb);
+ }
}
return root;
}