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linux-stable/fs/jfs
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Immad Mir fd2db13fb7 FS: JFS: Fix null-ptr-deref Read in txBegin 
[ Upstream commit 47cfdc338d ]

 Syzkaller reported an issue where txBegin may be called
 on a superblock in a read-only mounted filesystem which leads
 to NULL pointer deref. This could be solved by checking if
 the filesystem is read-only before calling txBegin, and returning
 with appropiate error code.

Reported-By: syzbot+f1faa20eec55e0c8644c@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=be7e52c50c5182cc09a09ea6fc456446b2039de3

Signed-off-by: Immad Mir <mirimmad17@gmail.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-27 08:56:44 +02:00
..
acl.c fs: port acl to mnt_idmap 2023-01-19 09:24:28 +01:00
file.c quota: port to mnt_idmap 2023-01-19 09:24:29 +01:00
inode.c jfs: remove ->writepage 2022-12-11 18:12:18 -08:00
ioctl.c fs: port ->fileattr_set() to pass mnt_idmap 2023-01-19 09:24:27 +01:00
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: Avoid field-overflowing memcpy() 2021-06-23 09:21:52 -05:00
jfs_discard.c
jfs_discard.h
jfs_dmap.c fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev 2023-07-27 08:56:44 +02:00
jfs_dmap.h jfs: Fix array index bounds check in dbAdjTree 2020-11-13 16:03:07 -06:00
jfs_dtree.c fs/jfs: Remove dead code 2022-04-25 14:00:33 -05:00
jfs_dtree.h
jfs_extent.c fs/jfs: Remove dead code 2022-04-25 14:00:33 -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 2023-07-23 13:53:58 +02:00
jfs_imap.c jfs: makes diUnmount/diMount in jfs_mount_rw atomic 2022-11-10 15:22:23 -06:00
jfs_imap.h
jfs_incore.h jfs: Avoid field-overflowing memcpy() 2021-06-23 09:21:52 -05:00
jfs_inode.c fs: port inode_init_owner() to mnt_idmap 2023-01-19 09:24:28 +01:00
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 fs/jfs: Remove dead code 2022-04-25 14:00:33 -05:00
jfs_logmgr.h jfs: delete duplicated words + other fixes 2020-11-13 13:36:00 -06:00
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: makes diUnmount/diMount in jfs_mount_rw atomic 2022-11-10 15:22:23 -06:00
jfs_superblock.h
jfs_txnmgr.c fs/jfs: Remove dead code 2022-04-25 14:00:33 -05:00
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
jfs_uniupr.c
jfs_xattr.h fs/jfs/jfs_xattr.h: Fix spelling typo in comment 2022-10-18 08:50:26 -05:00
jfs_xtree.c fs/jfs: Remove dead code 2022-04-25 14:00:33 -05:00
jfs_xtree.h jfs: remove unused declarations for jfs 2022-10-18 08:50:26 -05:00
Kconfig fs: build the legacy direct I/O code conditionally 2023-01-26 10:30:56 -07:00
Makefile fs/jfs: Remove dead code 2022-04-25 14:00:33 -05:00
namei.c FS: JFS: Fix null-ptr-deref Read in txBegin 2023-07-27 08:56:44 +02:00
resize.c jfs: use sb_bdev_nr_blocks 2021-10-18 14:43:23 -06:00
super.c fs/jfs: replace ternary operator with min_t() 2022-10-18 08:50:26 -05:00
symlink.c
xattr.c fs: drop unused posix acl handlers 2023-03-06 09:57:12 +01:00