attempt to access beyond end of device
loop4: rw=12288, want=12296, limit=8287
------------[ cut here ]------------
kernel BUG at fs/f2fs/segment.h:682!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 14465 Comm: syz-executor.4 Not tainted 5.9.0-rc6-next-20200924-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:f2fs_ra_meta_pages+0xa51/0xdc0 fs/f2fs/segment.h:682
Code: 08 49 83 ed 01 e9 3f f8 ff ff c7 44 24 18 80 00 00 00 45 31 ff 45 31 f6 31 f6 41 bc 01 00 00 00 e9 cd fb ff ff e8 4f de 20 fe <0f> 0b e8 48 de 20 fe 4c 8b 6c 24 08 be 04 00 00 00 4c 89 ef e8 66
RSP: 0000:ffffc9000971f7a0 EFLAGS: 00010246
RAX: 0000000000040000 RBX: dffffc0000000000 RCX: ffffc90011103000
RDX: 0000000000040000 RSI: ffffffff83545321 RDI: 0000000000000004
RBP: ffff88804ad2c000 R08: 0000000000000001 R09: ffffea0006ae8637
R10: 0000000000000037 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000601 R14: ffff8880a684cc00 R15: 000000000000001e
FS:  00007f73f8384700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ced32ee120 CR3: 000000009f58b000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 build_sit_entries fs/f2fs/segment.c:4385 [inline]
 f2fs_build_segment_manager+0x4daf/0xa370 fs/f2fs/segment.c:5100
 f2fs_fill_super+0x3b3a/0x73f0 fs/f2fs/super.c:3683
 mount_bdev+0x32e/0x3f0 fs/super.c:1417
 legacy_get_tree+0x105/0x220 fs/fs_context.c:592
 vfs_get_tree+0x89/0x2f0 fs/super.c:1547
 do_new_mount fs/namespace.c:2896 [inline]
 path_mount+0x12ae/0x1e70 fs/namespace.c:3227
 __do_sys_mount fs/namespace.c:3438 [inline]
 __se_sys_mount fs/namespace.c:3411 [inline]
 __x64_sys_mount+0x278/0x2f0 fs/namespace.c:3411
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x460bca
Code: Bad RIP value.
RSP: 002b:00007f73f8383a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f73f8383b20 RCX: 0000000000460bca
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f73f8383ae0
RBP: 00007f73f8383ae0 R08: 00007f73f8383b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020012400
Modules linked in:
---[ end trace f2cc56bd74dde9bb ]---
RIP: 0010:f2fs_ra_meta_pages+0xa51/0xdc0 fs/f2fs/segment.h:682
Code: 08 49 83 ed 01 e9 3f f8 ff ff c7 44 24 18 80 00 00 00 45 31 ff 45 31 f6 31 f6 41 bc 01 00 00 00 e9 cd fb ff ff e8 4f de 20 fe <0f> 0b e8 48 de 20 fe 4c 8b 6c 24 08 be 04 00 00 00 4c 89 ef e8 66
RSP: 0000:ffffc9000971f7a0 EFLAGS: 00010246
RAX: 0000000000040000 RBX: dffffc0000000000 RCX: ffffc90011103000
RDX: 0000000000040000 RSI: ffffffff83545321 RDI: 0000000000000004
RBP: ffff88804ad2c000 R08: 0000000000000001 R09: ffffea0006ae8637
R10: 0000000000000037 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000601 R14: ffff8880a684cc00 R15: 000000000000001e
FS:  00007f73f8384700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000460ba0 CR3: 000000009f58b000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400