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authorGreg Kroah-Hartman <gregkh@google.com>2020-07-09 10:27:40 +0200
committerGreg Kroah-Hartman <gregkh@google.com>2020-07-09 10:27:40 +0200
commit60cb6b82b45df384c0985642b3f2979c81a48fc5 (patch)
tree45aeec06fedcf69d8eae172534c56c710676d005 /fs/cifs/inode.c
parent98e46e86d3e46d4fe709ce38ad41f74f1d186f0c (diff)
parent665a45788e4195f198e149c51defd186c8ef6548 (diff)
Merge 4.4.230 into android-4.4-p
Changes in 4.4.230 btrfs: cow_file_range() num_bytes and disk_num_bytes are same btrfs: fix data block group relocation failure due to concurrent scrub mm: fix swap cache node allocation mask EDAC/amd64: Read back the scrub rate PCI register on F15h mm/slub: fix stack overruns with SLUB_STATS usb: usbtest: fix missing kfree(dev->buf) in usbtest_disconnect kgdb: Avoid suspicious RCU usage warning crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock() sched/rt: Show the 'sched_rr_timeslice' SCHED_RR timeslice tuning knob in milliseconds hwmon: (max6697) Make sure the OVERT mask is set correctly hwmon: (acpi_power_meter) Fix potential memory leak in acpi_power_meter_add() virtio-blk: free vblk-vqs in error path of virtblk_probe() i2c: algo-pca: Add 0x78 as SCL stuck low status for PCA9665 Revert "ALSA: usb-audio: Improve frames size computation" SMB3: Honor 'seal' flag for multiuser mounts SMB3: Honor persistent/resilient handle flags for multiuser mounts cifs: Fix the target file was deleted when rename failed. MIPS: Add missing EHB in mtc0 -> mfc0 sequence for DSPen netfilter: nf_conntrack_h323: lost .data_len definition for Q.931/ipv6 Linux 4.4.230 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I5402fcb3d8e16e5bf6bec2151354cb207b064e91
Diffstat (limited to 'fs/cifs/inode.c')
-rw-r--r--fs/cifs/inode.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index c18c26a78453..a002e289a544 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1737,6 +1737,7 @@ cifs_rename2(struct inode *source_dir, struct dentry *source_dentry,
FILE_UNIX_BASIC_INFO *info_buf_target;
unsigned int xid;
int rc, tmprc;
+ bool new_target = d_really_is_negative(target_dentry);
if (flags & ~RENAME_NOREPLACE)
return -EINVAL;
@@ -1813,8 +1814,13 @@ cifs_rename2(struct inode *source_dir, struct dentry *source_dentry,
*/
unlink_target:
- /* Try unlinking the target dentry if it's not negative */
- if (d_really_is_positive(target_dentry) && (rc == -EACCES || rc == -EEXIST)) {
+ /*
+ * If the target dentry was created during the rename, try
+ * unlinking it if it's not negative
+ */
+ if (new_target &&
+ d_really_is_positive(target_dentry) &&
+ (rc == -EACCES || rc == -EEXIST)) {
if (d_is_dir(target_dentry))
tmprc = cifs_rmdir(target_dir, target_dentry);
else