Anant Thazhemadam 0ddc5154b2 gfs2: add validation checks for size of superblock ... In gfs2_check_sb(), no validation checks are performed with regards to the size of the superblock. syzkaller detected a slab-out-of-bounds bug that was primarily caused because the block size for a superblock was set to zero. A valid size for a superblock is a power of 2 between 512 and PAGE_SIZE. Performing validation checks and ensuring that the size of the superblock is valid fixes this bug. Reported-by: syzbot+af90d47a37376844e731@syzkaller.appspotmail.com Tested-by: syzbot+af90d47a37376844e731@syzkaller.appspotmail.com Suggested-by: Andrew Price <anprice@redhat.com> Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com> [Minor code reordering.] Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>		2020-10-15 14:29:03 +02:00
..
acl.c	gfs2: Change inode qa_data to allow multiple users	2020-03-27 14:08:04 -05:00
acl.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
aops.c	gfs2: use iomap for buffered I/O in ordered and writeback mode	2020-10-14 23:54:42 +02:00
aops.h	gfs2: mark stuffed_readpage static	2019-07-03 14:45:18 +02:00
bmap.c	gfs2: use iomap for buffered I/O in ordered and writeback mode	2020-10-14 23:54:42 +02:00
bmap.h	gfs2: use iomap for buffered I/O in ordered and writeback mode	2020-10-14 23:54:42 +02:00
dentry.c	gfs2: untangle the logic in gfs2_drevalidate	2019-09-03 09:42:41 +02:00
dir.c	mm: remove the pgprot argument to __vmalloc	2020-06-02 10:59:11 -07:00
dir.h	gfs2: Delete an unnecessary check before brelse()	2019-09-04 20:22:17 +02:00
export.c	gfs2: Minor gfs2_lookup_by_inum cleanup	2020-06-05 20:19:21 +02:00
file.c	Changes in gfs2:	2020-08-10 18:22:43 -07:00
gfs2.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
glock.c	gfs2: call truncate_inode_pages_final for address space glocks	2020-10-14 23:54:42 +02:00
glock.h	Merge branch 'gfs2-iopen' into for-next	2020-06-05 21:25:36 +02:00
glops.c	gfs2: Fix NULL pointer dereference in gfs2_rgrp_dump	2020-10-14 23:54:43 +02:00
glops.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
incore.h	gfs2: use-after-free in sysfs deregistration	2020-10-14 23:54:43 +02:00
inode.c	gfs2: Don't return NULL from gfs2_inode_lookup	2020-06-30 13:04:45 +02:00
inode.h	gfs2: Minor gfs2_lookup_by_inum cleanup	2020-06-05 20:19:21 +02:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
lock_dlm.c	gfs2: Force withdraw to replay journals and wait for it to finish	2020-02-27 07:53:12 -06:00
log.c	gfs2: Fix bad comment for trans_drain	2020-10-14 23:54:41 +02:00
log.h	gfs2: eliminate GIF_ORDERED in favor of list_empty	2020-07-03 12:05:34 +02:00
lops.c	treewide: Remove uninitialized_var() usage	2020-07-16 12:35:15 -07:00
lops.h	gfs2: Remove active journal side effect from gfs2_write_log_header	2019-11-12 15:17:53 +01:00
main.c	gfs2: eliminate GIF_ORDERED in favor of list_empty	2020-07-03 12:05:34 +02:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
meta_io.c	gfs2: fix withdraw sequence deadlock	2020-05-06 21:25:26 +02:00
meta_io.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
ops_fstype.c	gfs2: add validation checks for size of superblock	2020-10-15 14:29:03 +02:00
quota.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
quota.h	gfs2: move privileged user check to gfs2_quota_lock_check	2020-05-08 18:47:58 +02:00
recovery.c	gfs2: When freezing gfs2, use GL_EXACT and not GL_NOCACHE	2020-07-03 12:05:35 +02:00
recovery.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
rgrp.c	gfs2: Fix NULL pointer dereference in gfs2_rgrp_dump	2020-10-14 23:54:43 +02:00
rgrp.h	gfs2: Fix NULL pointer dereference in gfs2_rgrp_dump	2020-10-14 23:54:43 +02:00
super.c	gfs2: use-after-free in sysfs deregistration	2020-10-14 23:54:43 +02:00
super.h	gfs2: Force withdraw to replay journals and wait for it to finish	2020-02-27 07:53:12 -06:00
sys.c	gfs2: use-after-free in sysfs deregistration	2020-10-14 23:54:43 +02:00
sys.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
trace_gfs2.h	gfs2: eliminate rs_inum and reduce the size of gfs2 inodes	2018-06-21 07:39:31 -05:00
trans.c	gfs2: add some much needed cleanup for log flushes that fail	2020-08-24 13:54:07 +02:00
trans.h	gfs2: new slab for transactions	2020-06-05 21:24:25 +02:00
util.c	gfs2: Fix NULL pointer dereference in gfs2_rgrp_dump	2020-10-14 23:54:43 +02:00
util.h	gfs2: Make sure we don't miss any delayed withdraws	2020-10-14 23:54:41 +02:00
xattr.c	gfs2: Change inode qa_data to allow multiple users	2020-03-27 14:08:04 -05:00
xattr.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00