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Liu Shixin via Jfs-discussion ea30508b7b fs/jfs: fix shift exponent db_agl2size negative 
[ Upstream commit fad376fce0af58deebc5075b8539dc05bf639af3 ]

As a shift exponent, db_agl2size can not be less than 0. Add the missing
check to fix the shift-out-of-bounds bug reported by syzkaller:

 UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2227:15
 shift exponent -744642816 is negative

Reported-by: syzbot+0be96567042453c0c820@syzkaller.appspotmail.com
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11 13:57:22 +01:00
..
acl.c
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
file.c
jfs: convert to fileattr
2021-04-12 15:04:29 +02:00
inode.c
jfs: prevent NULL deref in diFree
2022-04-13 20:59:13 +02:00
ioctl.c
jfs: convert to fileattr
2021-04-12 15:04:29 +02:00
jfs_acl.h
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
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: Avoid field-overflowing memcpy()
2021-06-23 09:21:52 -05:00
jfs_discard.c
…
jfs_discard.h
…
jfs_dmap.c
fs/jfs: fix shift exponent db_agl2size negative
2023-03-11 13:57:22 +01:00
jfs_dmap.h
jfs: Fix array index bounds check in dbAdjTree
2020-11-13 16:03:07 -06:00
jfs_dtree.c
jfs: Replace zero-length array with flexible-array member
2020-03-09 15:18:51 -05:00
jfs_dtree.h
…
jfs_extent.c
jfs: delete duplicated words + other fixes
2020-11-13 13:36:00 -06:00
jfs_extent.h
jfs: delete duplicated words + other fixes
2020-11-13 13:36:00 -06:00
jfs_filsys.h
JFS: more checks for invalid superblock
2020-12-18 15:23:33 -06:00
jfs_imap.c
jfs: Avoid field-overflowing memcpy()
2021-06-23 09:21:52 -05:00
jfs_imap.h
…
jfs_incore.h
jfs: Avoid field-overflowing memcpy()
2021-06-23 09:21:52 -05:00
jfs_inode.c
inode: make init and permission helpers idmapped mount aware
2021-01-24 14:27:16 +01:00
jfs_inode.h
jfs: convert to fileattr
2021-04-12 15:04:29 +02:00
jfs_lock.h
…
jfs_logmgr.c
fs/jfs: Fix missing error code in lmLogInit()
2021-06-01 10:29:12 -05:00
jfs_logmgr.h
jfs: delete duplicated words + other fixes
2020-11-13 13:36:00 -06:00
jfs_metapage.c
fs: Introduce i_blocks_per_page
2020-09-21 08:59:26 -07:00
jfs_metapage.h
…
jfs_mount.c
JFS: fix memleak in jfs_mount
2021-11-18 19:16:48 +01:00
jfs_superblock.h
…
jfs_txnmgr.c
jfs: Remove trailing semicolon in macros
2021-05-21 10:36:22 -05:00
jfs_txnmgr.h
…
jfs_types.h
…
jfs_umount.c
…
jfs_unicode.c
…
jfs_unicode.h
…
jfs_uniupr.c
…
jfs_xattr.h
jfs: Replace zero-length array with flexible-array member
2020-03-09 15:18:51 -05:00
jfs_xtree.c
jfs: delete duplicated words + other fixes
2020-11-13 13:36:00 -06:00
jfs_xtree.h
…
Kconfig
docs: fix a couple of new broken references
2019-07-31 14:12:26 -06:00
Makefile
…
namei.c
jfs: Fix fortify moan in symlink
2022-12-31 13:14:40 +01:00
resize.c
block: move struct block_device to blk_types.h
2020-06-24 09:16:02 -06:00
super.c
jfs: Avoid field-overflowing memcpy()
2021-06-23 09:21:52 -05:00
symlink.c
…
xattr.c
acl: handle idmapped mounts
2021-01-24 14:27:17 +01:00