loop0: detected capacity change from 0 to 32768
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
BUG at fs/jfs/inode.c:370 assert(length >= 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/inode.c:370!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-08486-gf66bc387efbe #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:jfs_truncate_nolock+0x33b/0x340 fs/jfs/inode.c:370
Code: e8 8a 8e 2a 08 e8 f5 d6 86 fe 48 c7 c7 c0 82 c3 8b 48 c7 c6 e0 7e c3 8b ba 72 01 00 00 48 c7 c1 00 83 c3 8b e8 d6 28 ee fd 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66
RSP: 0018:ffffc9000d6b7320 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff888043b53b80 RCX: a3af3dee2b2c4700
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9000d6b73c8 R08: ffffc9000d6b7007 R09: 1ffff92001ad6e00
R10: dffffc0000000000 R11: fffff52001ad6e01 R12: fffffffffffffffb
R13: dffffc0000000000 R14: ffff888043b53b80 R15: 1ffff92001ad6e68
FS:  00007fc5d7e316c0(0000) GS:ffff88808d263000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f81de9909c0 CR3: 0000000042861000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jfs_truncate fs/jfs/inode.c:412 [inline]
 jfs_write_failed+0x119/0x190 fs/jfs/inode.c:289
 jfs_write_begin+0x6f/0x80 fs/jfs/inode.c:301
 generic_perform_write+0x2c4/0x910 mm/filemap.c:4103
 __generic_file_write_iter+0x1ae/0x230 mm/filemap.c:4217
 generic_file_write_iter+0x10f/0x540 mm/filemap.c:4246
 iter_file_splice_write+0x937/0x1000 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0xfe/0x160 fs/splice.c:1158
 splice_direct_to_actor+0x5a8/0xcc0 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1227
 do_sendfile+0x4da/0x7e0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc5d6f8e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc5d7e31038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fc5d71b5fa0 RCX: 00007fc5d6f8e969
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007fc5d7010ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc5d71b5fa0 R15: 00007ffd5a082448
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_truncate_nolock+0x33b/0x340 fs/jfs/inode.c:370
Code: e8 8a 8e 2a 08 e8 f5 d6 86 fe 48 c7 c7 c0 82 c3 8b 48 c7 c6 e0 7e c3 8b ba 72 01 00 00 48 c7 c1 00 83 c3 8b e8 d6 28 ee fd 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66
RSP: 0018:ffffc9000d6b7320 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff888043b53b80 RCX: a3af3dee2b2c4700
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9000d6b73c8 R08: ffffc9000d6b7007 R09: 1ffff92001ad6e00
R10: dffffc0000000000 R11: fffff52001ad6e01 R12: fffffffffffffffb
R13: dffffc0000000000 R14: ffff888043b53b80 R15: 1ffff92001ad6e68
FS:  00007fc5d7e316c0(0000) GS:ffff88808d263000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc5d7deefc8 CR3: 0000000042861000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400