Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-10 07:10:27 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix two regressions in ext4, one report by syzkaller[1], and reported by

Browse Source 
multiple users (and tracked by regzbot[2]).
 
 [1] https://syzkaller.appspot.com/bug?extid=4acc7d910e617b360859
 [2] https://linux-regtracking.leemhuis.info/regzbot/regression/ZIauBR7YiV3rVAHL@glitch/
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAmSLPr8ACgkQ8vlZVpUN
 gaO08wgAlk1HqZub9iJm7ZQRx4qVb4zGYGL8So4IE/971FT8Vq3suJsQlTWpPVBB
 8O6H5bsq5F54wfjmY44aUyBjc1SEJL2zfrEeMxcsxH+1tEoEe8i+FT3BXVr6+Y7k
 qdZYrqmtbYpM2dyNW7LY4UDRQBE6ug+r6Cq1z2Mo7cfwfiBcYYe7lncbl3xJe7D8
 8DZLgjQg48wxvU5EOK2yHMHw0YfJySnmaCo7J7sU5TLZj91IEnlNGwAjYIy1GUBV
 3I+/+U70QR1VtZig7v4q6TI3LDHfegRc8zIIOtM3u1qs2bzLFgyoNURtut2vhF2+
 /XyXxFabmlpG7yp3UZVetCECKVa2Kg==
 =WJ4O
 -----END PGP SIGNATURE-----

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 two regressions in ext4, one report by syzkaller[1], and reported
  by multiple users (and tracked by regzbot[2])"

[1] https://syzkaller.appspot.com/bug?extid=4acc7d910e617b360859
[2] https://linux-regtracking.leemhuis.info/regzbot/regression/ZIauBR7YiV3rVAHL@glitch/

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: drop the call to ext4_error() from ext4_get_group_info()
  Revert "ext4: remove unnecessary check in ext4_bg_num_gdb_nometa"
This commit is contained in:
Linus Torvalds 2023-06-15 15:40:58 -07:00
commit 62d8779610
1 changed files with 12 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
fs/ext4/balloc.c
View File

@ -324,17 +324,15 @@ static ext4_fsblk_t ext4_valid_block_bitmap_padding(struct super_block *sb,
struct ext4_group_info *ext4_get_group_info(struct super_block *sb,
ext4_group_t group)
{
struct ext4_group_info **grp_info;
long indexv, indexh;
struct ext4_group_info **grp_info;
long indexv, indexh;
if (unlikely(group >= EXT4_SB(sb)->s_groups_count)) {
ext4_error(sb, "invalid group %u", group);
return NULL;
}
indexv = group >> (EXT4_DESC_PER_BLOCK_BITS(sb));
indexh = group & ((EXT4_DESC_PER_BLOCK(sb)) - 1);
grp_info = sbi_array_rcu_deref(EXT4_SB(sb), s_group_info, indexv);
return grp_info[indexh];
if (unlikely(group >= EXT4_SB(sb)->s_groups_count))
return NULL;
indexv = group >> (EXT4_DESC_PER_BLOCK_BITS(sb));
indexh = group & ((EXT4_DESC_PER_BLOCK(sb)) - 1);
grp_info = sbi_array_rcu_deref(EXT4_SB(sb), s_group_info, indexv);
return grp_info[indexh];
}
/*
@ -886,7 +884,10 @@ static unsigned long ext4_bg_num_gdb_nometa(struct super_block *sb,
if (!ext4_bg_has_super(sb, group))
return 0;
return EXT4_SB(sb)->s_gdb_count;
if (ext4_has_feature_meta_bg(sb))
return le32_to_cpu(EXT4_SB(sb)->s_es->s_first_meta_bg);
else
return EXT4_SB(sb)->s_gdb_count;
}
/**