KASAN: use-after-free Read in reiserfs_fill

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	KASAN: use-after-free Read in reiserfs_fill_super reiserfs	C	error	done	2	1237d	1235d	19/26	fixed on 2021/03/10 01:48
upstream	KASAN: use-after-free Read in reiserfs_fill_super (2) reiserfs				1	872d	868d	0/26	auto-closed as invalid on 2022/02/03 07:30

upstream

KASAN: use-after-free Read in reiserfs_fill_super reiserfs

error

done

1237d

1235d

19/26

fixed on 2021/03/10 01:48

upstream

KASAN: use-after-free Read in reiserfs_fill_super (2) reiserfs

872d

868d

0/26

auto-closed as invalid on 2022/02/03 07:30


Created	Duration	User	Repo	Result
2021/02/20 17:41	2h18m	bisect fix	linux-4.14.y	job log (1)
2021/02/17 22:31	17m	bisect fix	linux-4.14.y	error job log (0)
2021/02/04 18:19	1m	bisect fix	linux-4.14.y	error job log (0)

reiserfs: using flush barriers REISERFS (device loop0): journal params: device loop0, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 REISERFS (device loop0): checking transaction log (loop0) ================================================================== BUG: KASAN: use-after-free in init_inode fs/reiserfs/inode.c:1326 [inline] BUG: KASAN: use-after-free in reiserfs_read_locked_inode+0x2030/0x2190 fs/reiserfs/inode.c:1575 Read of size 4 at addr ffff8880876c5000 by task syz-executor847/7983 CPU: 1 PID: 7983 Comm: syz-executor847 Not tainted 4.14.213-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252 kasan_report_error.cold+0x8a/0x194 mm/kasan/report.c:351 kasan_report mm/kasan/report.c:409 [inline] __asan_report_load_n_noabort+0x6b/0x80 mm/kasan/report.c:440 init_inode fs/reiserfs/inode.c:1326 [inline] reiserfs_read_locked_inode+0x2030/0x2190 fs/reiserfs/inode.c:1575 reiserfs_fill_super+0x151f/0x28be fs/reiserfs/super.c:2084 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0xe53/0x2a00 fs/namespace.c:2879 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x446dda RSP: 002b:00007ffdc0dc1258 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffdc0dc12b0 RCX: 0000000000446dda RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffdc0dc1270 RBP: 00007ffdc0dc1270 R08: 00007ffdc0dc12b0 R09: 00007ffd00000015 R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000006 R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 The buggy address belongs to the page: page:ffffea00021db140 count:0 mapcount:0 mapping: (null) index:0x1 flags: 0xfff00000000000() raw: 00fff00000000000 0000000000000000 0000000000000001 00000000ffffffff raw: ffffea00021db1a0 ffff8880ba52dac8 0000000000000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880876c4f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880876c4f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880876c5000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff8880876c5080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8880876c5100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2021/01/05 18:09	linux-4.14.y	1752938529c6	a0234d98	.config	console log	report	syz	C			ci2-linux-4-14
2021/01/05 17:54	linux-4.14.y	1752938529c6	a0234d98	.config	console log	report			info		ci2-linux-4-14

Crashes (2):

Assets (help?)