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Edward Adam Davis cc0bc4cb62 jfs: add sanity check for agwidth in dbMount 
[ Upstream commit ddf2846f22e8575d6b4b6a66f2100f168b8cd73d ]

The width in dmapctl of the AG is zero, it trigger a divide error when
calculating the control page level in dbAllocAG.

To avoid this issue, add a check for agwidth in dbAllocAG.

Reported-and-tested-by: syzbot+7c808908291a569281a9@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=7c808908291a569281a9
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-04-25 10:45:15 +02:00
..
acl.c
jfs: convert to ctime accessor functions
2023-07-24 10:30:01 +02:00
file.c
splice: Use filemap_splice_read() instead of generic_file_splice_read()
2023-05-24 08:42:17 -06:00
inode.c
jfs: convert to ctime accessor functions
2023-07-24 10:30:01 +02:00
ioctl.c
jfs: convert to ctime accessor functions
2023-07-24 10:30:01 +02:00
jfs_acl.h
fs: port ->set_acl() to pass mnt_idmap
2023-01-19 09:24:27 +01:00
jfs_btree.h
…
jfs_debug.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
jfs_debug.h
…
jfs_dinode.h
jfs: define xtree root and page independently
2024-08-29 17:33:42 +02:00
jfs_discard.c
jfs: Fix uaf in dbFreeBits
2024-10-10 11:57:33 +02:00
jfs_discard.h
…
jfs_dmap.c
jfs: add sanity check for agwidth in dbMount
2025-04-25 10:45:15 +02:00
jfs_dmap.h
jfs: Fix array index bounds check in dbAdjTree
2020-11-13 16:03:07 -06:00
jfs_dtree.c
jfs: add index corruption check to DT_GETPAGE()
2025-04-10 14:37:43 +02:00
jfs_dtree.h
…
jfs_extent.c
jfs: validate max amount of blocks before allocation.
2023-08-29 12:25:47 -05:00
jfs_extent.h
jfs: remove unused declarations for jfs
2022-10-18 08:50:26 -05:00
jfs_filsys.h
jfs: jfs_dmap: Validate db_l2nbperpage while mounting
2023-06-20 12:37:50 -05:00
jfs_imap.c
jfs: Prevent copying of nlink with value 0 from disk inode
2025-04-25 10:45:15 +02:00
jfs_imap.h
…
jfs_incore.h
jfs: define xtree root and page independently
2024-08-29 17:33:42 +02:00
jfs_inode.c
jfs: convert to ctime accessor functions
2023-07-24 10:30:01 +02:00
jfs_inode.h
fs: port ->fileattr_set() to pass mnt_idmap
2023-01-19 09:24:27 +01:00
jfs_lock.h
…
jfs_logmgr.c
jfs: fix log->bdev_handle null ptr deref in lbmStartIO
2024-08-19 06:04:25 +02:00
jfs_logmgr.h
jfs: Convert to bdev_open_by_dev()
2024-08-19 06:04:25 +02:00
jfs_metapage.c
mm,jfs: move write_one_page/folio_write_one to jfs
2023-03-12 20:00:42 -04:00
jfs_metapage.h
…
jfs_mount.c
jfs: Convert to bdev_open_by_dev()
2024-08-19 06:04:25 +02:00
jfs_superblock.h
…
jfs_txnmgr.c
jfs: define xtree root and page independently
2024-08-29 17:33:42 +02:00
jfs_txnmgr.h
…
jfs_types.h
…
jfs_umount.c
jfs: Fix a typo in function jfs_umount
2022-11-10 15:08:00 -06:00
jfs_unicode.c
…
jfs_unicode.h
fs/jfs: Use common ucs2 upper case table
2023-08-30 08:55:52 -05:00
jfs_xattr.h
fs/jfs/jfs_xattr.h: Fix spelling typo in comment
2022-10-18 08:50:26 -05:00
jfs_xtree.c
jfs: define xtree root and page independently
2024-08-29 17:33:42 +02:00
jfs_xtree.h
jfs: define xtree root and page independently
2024-08-29 17:33:42 +02:00
Kconfig
Merge tag '6.6-rc-smb3-client-fixes-part1' of git://git.samba.org/sfrench/cifs-2.6
2023-08-30 21:01:40 -07:00
Makefile
fs/jfs: Use common ucs2 upper case table
2023-08-30 08:55:52 -05:00
namei.c
Merge tag 'jfs-6.6' of github.com:kleikamp/linux-shaggy
2023-08-31 15:25:01 -07:00
resize.c
jfs: use sb_bdev_nr_blocks
2021-10-18 14:43:23 -06:00
super.c
quota: Properly annotate i_dquot arrays with __rcu
2024-03-26 18:19:46 -04:00
symlink.c
…
xattr.c
jfs: fix slab-out-of-bounds read in ea_get()
2025-04-10 14:37:43 +02:00