loop0: detected capacity change from 0 to 40427 f2fs: Unknown parameter 'C-»™c_mode' loop0: detected capacity change from 0 to 32768 ------------[ cut here ]------------ lp >= size || lp < 0 WARNING: fs/jfs/jfs_dmap.c:2875 at dbAdjTree+0x454/0x4e0 fs/jfs/jfs_dmap.c:2875, CPU#0: syz.0.0/5318 Modules linked in: CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:dbAdjTree+0x454/0x4e0 fs/jfs/jfs_dmap.c:2875 Code: 5a ff ff ff e8 6d 00 6f fe eb 05 e8 66 00 6f fe 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 4d 00 6f fe 90 <0f> 0b 90 eb e1 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e1 fb ff ff RSP: 0018:ffffc9000af87220 EFLAGS: 00010287 RAX: ffffffff83558973 RBX: ffff8880444b8010 RCX: 0000000000100000 RDX: ffffc90020802000 RSI: 00000000000096bf RDI: 00000000000096c0 RBP: 0000000000002057 R08: 0000000000000000 R09: 1ffffd40002225c0 R10: dffffc0000000000 R11: fffff940002225c1 R12: ffff8880444b8018 R13: dffffc0000000000 R14: 0000000000000005 R15: 0000000000000155 FS: 00007f47d51cd6c0(0000) GS:ffff88808cce8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000f000 CR3: 00000000493e2000 CR4: 0000000000352ef0 Call Trace: dbSplit+0x132/0x200 fs/jfs/jfs_dmap.c:2648 dbAllocBits+0x502/0xa60 fs/jfs/jfs_dmap.c:2193 dbAllocDmap+0x6b/0x150 fs/jfs/jfs_dmap.c:2034 dbAlloc+0x46c/0xba0 fs/jfs/jfs_dmap.c:805 extBalloc fs/jfs/jfs_extent.c:336 [inline] extAlloc+0x57d/0x1020 fs/jfs/jfs_extent.c:127 jfs_get_block+0x358/0xad0 fs/jfs/inode.c:254 __block_write_begin_int+0x6c6/0x1910 fs/buffer.c:2145 block_write_begin+0x8d/0x120 fs/buffer.c:2256 jfs_write_begin+0x35/0x80 fs/jfs/inode.c:306 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4314 generic_file_write_iter+0x14a/0x680 mm/filemap.c:4457 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:686 ksys_pwrite64 fs/read_write.c:793 [inline] __do_sys_pwrite64 fs/read_write.c:801 [inline] __se_sys_pwrite64 fs/read_write.c:798 [inline] __x64_sys_pwrite64+0x199/0x230 fs/read_write.c:798 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f47d439aeb9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f47d51cd028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f47d4615fa0 RCX: 00007f47d439aeb9 RDX: 000000000000fdef RSI: 0000200000000140 RDI: 0000000000000009 RBP: 00007f47d4408c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000e7c R11: 0000000000000246 R12: 0000000000000000 R13: 00007f47d4616038 R14: 00007f47d4615fa0 R15: 00007fff90be5288