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authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-01 21:06:39 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-01 21:06:39 +0200
commit911a2997a5b7c16b27dfe83d8e2f614e44d90f74 (patch)
treefdad1abbe9909f8faf703c4fe27f794085d34730 /fs/udf
parentMerge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/t... (diff)
parentwriteback: fix obtain a reference to a freeing memcg css (diff)
downloadlinux-911a2997a5b7c16b27dfe83d8e2f614e44d90f74.tar.xz
linux-911a2997a5b7c16b27dfe83d8e2f614e44d90f74.zip
Merge tag 'fs_for_v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull misc fs updates from Jan Kara: "The new quotactl_fd() syscall (remake of quotactl_path() syscall that got introduced & disabled in 5.13 cycle), and couple of udf, reiserfs, isofs, and writeback fixes and cleanups" * tag 'fs_for_v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: writeback: fix obtain a reference to a freeing memcg css quota: remove unnecessary oom message isofs: remove redundant continue statement quota: Wire up quotactl_fd syscall quota: Change quotactl_path() systcall to an fd-based one reiserfs: Remove unneed check in reiserfs_write_full_page() udf: Fix NULL pointer dereference in udf_symlink function reiserfs: add check for invalid 1st journal block
Diffstat (limited to 'fs/udf')
-rw-r--r--fs/udf/namei.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 3ae9f1e91984..7c7c9bbbfa57 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -934,6 +934,10 @@ static int udf_symlink(struct user_namespace *mnt_userns, struct inode *dir,
iinfo->i_location.partitionReferenceNum,
0);
epos.bh = udf_tgetblk(sb, block);
+ if (unlikely(!epos.bh)) {
+ err = -ENOMEM;
+ goto out_no_entry;
+ }
lock_buffer(epos.bh);
memset(epos.bh->b_data, 0x00, bsize);
set_buffer_uptodate(epos.bh);