UBSAN: array-index-out-of-bounds in init

Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported
KASAN: slab-out-of-bounds Write in gfs2_fill_super gfs2	C	done		1	1544d	1543d

done

1544d

1543d

Title	Replies (including bot)	Last reply
[PATCH v2] fs: gfs2: add validation checks for size of superblock	2 (2)	2020/10/14 19:00
[PATCH] fs: gfs2: prevent OOB access in gfs2_read_sb()	4 (4)	2020/10/14 13:25
KASAN: slab-out-of-bounds Write in gfs2_fill_super	4 (5)	2020/10/14 13:16
UBSAN: array-index-out-of-bounds in init_sb	0 (1)	2020/10/12 13:10

Created	Duration	User	Patch	Repo	Result
2020/10/13 13:18	17m	anant.thazhemadam@gmail.com	patch	upstream	OK

Created

Duration

User

Patch

Repo

Result

2020/10/13 13:18

17m

anant.thazhemadam@gmail.com

patch

upstream

gfs2: fsid=loop0: Trying to join cluster "lock_nolock", "loop0" gfs2: fsid=loop0: Now mounting FS... ================================================================================ UBSAN: array-index-out-of-bounds in fs/gfs2/ops_fstype.c:342:21 index 11 is out of range for type 'u64 [11]' CPU: 0 PID: 6858 Comm: syz-executor016 Not tainted 5.9.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148 __ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:356 gfs2_read_sb fs/gfs2/ops_fstype.c:342 [inline] init_sb+0xc37/0xd30 fs/gfs2/ops_fstype.c:479 gfs2_fill_super+0x1796/0x254a fs/gfs2/ops_fstype.c:1096 get_tree_bdev+0x421/0x740 fs/super.c:1342 gfs2_get_tree+0x4a/0x270 fs/gfs2/ops_fstype.c:1201 vfs_get_tree+0x89/0x2f0 fs/super.c:1547 do_new_mount fs/namespace.c:2875 [inline] path_mount+0x1387/0x20a0 fs/namespace.c:3192 do_mount fs/namespace.c:3205 [inline] __do_sys_mount fs/namespace.c:3413 [inline] __se_sys_mount fs/namespace.c:3390 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3390 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x446dba Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007fff576c7778 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fff576c77d0 RCX: 0000000000446dba RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff576c7790 RBP: 00007fff576c7790 R08: 00007fff576c77d0 R09: 00007fff00000015 R10: 0000000002200000 R11: 0000000000000293 R12: 0000000000000001 R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 ================================================================================

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2020/10/11 08:35	upstream	da690031a5d6	4a77ae0b	.config	console log	report	syz	C			ci-upstream-kasan-gce-root
2020/10/10 08:11	upstream	6f2f486d57c4	93817d89	.config	console log	report	syz	C			ci-upstream-kasan-gce-selinux-root

Crashes (2):

Assets (help?)