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authorLinus Torvalds <torvalds@linux-foundation.org>2022-11-06 19:30:29 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2022-11-06 19:30:29 +0100
commit9761070d14db0ac0706684eb2fa37dca3087efa1 (patch)
tree70858e3496309eed60ba1ff864faccefba1be58c /fs
parentMerge tag '6.1-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 (diff)
parentext4: fix fortify warning in fs/ext4/fast_commit.c:1551 (diff)
downloadlinux-9761070d14db0ac0706684eb2fa37dca3087efa1.tar.xz
linux-9761070d14db0ac0706684eb2fa37dca3087efa1.zip
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o: "Fix a number of bugs, including some regressions, the most serious of which was one which would cause online resizes to fail with file systems with metadata checksums enabled. Also fix a warning caused by the newly added fortify string checker, plus some bugs that were found using fuzzed file systems" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix fortify warning in fs/ext4/fast_commit.c:1551 ext4: fix wrong return err in ext4_load_and_init_journal() ext4: fix warning in 'ext4_da_release_space' ext4: fix BUG_ON() when directory entry has invalid rec_len ext4: update the backup superblock's at the end of the online resize
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/fast_commit.c5
-rw-r--r--fs/ext4/ioctl.c3
-rw-r--r--fs/ext4/migrate.c3
-rw-r--r--fs/ext4/namei.c10
-rw-r--r--fs/ext4/resize.c5
-rw-r--r--fs/ext4/super.c2
6 files changed, 21 insertions, 7 deletions
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index ef05bfa87798..0f6d0a80467d 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1521,6 +1521,7 @@ static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl,
struct ext4_iloc iloc;
int inode_len, ino, ret, tag = tl->fc_tag;
struct ext4_extent_header *eh;
+ size_t off_gen = offsetof(struct ext4_inode, i_generation);
memcpy(&fc_inode, val, sizeof(fc_inode));
@@ -1548,8 +1549,8 @@ static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl,
raw_inode = ext4_raw_inode(&iloc);
memcpy(raw_inode, raw_fc_inode, offsetof(struct ext4_inode, i_block));
- memcpy(&raw_inode->i_generation, &raw_fc_inode->i_generation,
- inode_len - offsetof(struct ext4_inode, i_generation));
+ memcpy((u8 *)raw_inode + off_gen, (u8 *)raw_fc_inode + off_gen,
+ inode_len - off_gen);
if (le32_to_cpu(raw_inode->i_flags) & EXT4_EXTENTS_FL) {
eh = (struct ext4_extent_header *)(&raw_inode->i_block[0]);
if (eh->eh_magic != EXT4_EXT_MAGIC) {
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index ded535535b27..95dfea28bf4e 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -145,9 +145,8 @@ static int ext4_update_backup_sb(struct super_block *sb,
if (ext4_has_metadata_csum(sb) &&
es->s_checksum != ext4_superblock_csum(sb, es)) {
ext4_msg(sb, KERN_ERR, "Invalid checksum for backup "
- "superblock %llu\n", sb_block);
+ "superblock %llu", sb_block);
unlock_buffer(bh);
- err = -EFSBADCRC;
goto out_bh;
}
func(es, arg);
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 0a220ec9862d..a19a9661646e 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -424,7 +424,8 @@ int ext4_ext_migrate(struct inode *inode)
* already is extent-based, error out.
*/
if (!ext4_has_feature_extents(inode->i_sb) ||
- (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
+ ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS) ||
+ ext4_has_inline_data(inode))
return -EINVAL;
if (S_ISLNK(inode->i_mode) && inode->i_blocks == 0)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index d5daaf41e1fc..c08c0aba1883 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2259,8 +2259,16 @@ static int make_indexed_dir(handle_t *handle, struct ext4_filename *fname,
memset(de, 0, len); /* wipe old data */
de = (struct ext4_dir_entry_2 *) data2;
top = data2 + len;
- while ((char *)(de2 = ext4_next_entry(de, blocksize)) < top)
+ while ((char *)(de2 = ext4_next_entry(de, blocksize)) < top) {
+ if (ext4_check_dir_entry(dir, NULL, de, bh2, data2, len,
+ (data2 + (blocksize - csum_size) -
+ (char *) de))) {
+ brelse(bh2);
+ brelse(bh);
+ return -EFSCORRUPTED;
+ }
de = de2;
+ }
de->rec_len = ext4_rec_len_to_disk(data2 + (blocksize - csum_size) -
(char *) de, blocksize);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 6dfe9ccae0c5..46b87ffeb304 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1158,6 +1158,7 @@ static void update_backups(struct super_block *sb, sector_t blk_off, char *data,
while (group < sbi->s_groups_count) {
struct buffer_head *bh;
ext4_fsblk_t backup_block;
+ struct ext4_super_block *es;
/* Out of journal space, and can't get more - abort - so sad */
err = ext4_resize_ensure_credits_batch(handle, 1);
@@ -1186,6 +1187,10 @@ static void update_backups(struct super_block *sb, sector_t blk_off, char *data,
memcpy(bh->b_data, data, size);
if (rest)
memset(bh->b_data + size, 0, rest);
+ es = (struct ext4_super_block *) bh->b_data;
+ es->s_block_group_nr = cpu_to_le16(group);
+ if (ext4_has_metadata_csum(sb))
+ es->s_checksum = ext4_superblock_csum(sb, es);
set_buffer_uptodate(bh);
unlock_buffer(bh);
err = ext4_handle_dirty_metadata(handle, NULL, bh);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 7950904fbf04..7cdd2138c897 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4881,7 +4881,7 @@ out:
flush_work(&sbi->s_error_work);
jbd2_journal_destroy(sbi->s_journal);
sbi->s_journal = NULL;
- return err;
+ return -EINVAL;
}
static int ext4_journal_data_mode_check(struct super_block *sb)