R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fbf42fb5fa0 R15: 00007fff970e6948
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 481 at lib/iov_iter.c:255 _copy_from_iter+0x2b0/0x14b0 lib/iov_iter.c:255
Modules linked in:
CPU: 0 UID: 0 PID: 481 Comm: syz.4.16 Not tainted 6.12.30-syzkaller #0 60c2ce405074cd1d40ab5ae1f93db235dacb31a8
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:_copy_from_iter+0x2b0/0x14b0 lib/iov_iter.c:255
Code: 48 3b 84 24 00 01 00 00 0f 85 ef 04 00 00 4c 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 90 9f f7 fe <0f> 0b 45 31 ff 48 bb 00 00 00 00 00 fc ff df eb 94 e8 7a 9f f7 fe
RSP: 0018:ffffc90001106cc0 EFLAGS: 00010293
RAX: ffffffff827fbe80 RBX: ffff88811841e73a RCX: ffff88811bf25640
RDX: 0000000000000000 RSI: 000000000000000a RDI: ffff88811371a417
RBP: ffffc90001106e10 R08: ffff88811bf25640 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000000 R12: 1ffff110252f243b
R13: ffff88811841e738 R14: 000000000000000a R15: dffffc0000000000
FS:  00007fbf43b726c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffff7ad6f48 CR3: 000000011cd2a000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 copy_from_iter include/linux/uio.h:219 [inline]
 copy_from_iter_full include/linux/uio.h:236 [inline]
 pdu_write_u net/9p/protocol.c:234 [inline]
 p9pdu_vwritef+0x1b2f/0x2720 net/9p/protocol.c:614
 p9_client_prepare_req+0xc06/0xfd0 net/9p/client.c:651
 p9_client_rpc+0x189/0xb40 net/9p/client.c:691
 p9_client_write+0x33b/0x790 net/9p/client.c:1646
 v9fs_issue_write+0xd8/0x150 fs/9p/vfs_addr.c:59
 netfs_do_issue_write+0xa5/0x1f0 fs/netfs/write_issue.c:233
 netfs_issue_write fs/netfs/write_issue.c:260 [inline]
 netfs_write_folio+0x116d/0x1df0 fs/netfs/write_issue.c:505
 netfs_end_writethrough+0x5f/0x150 fs/netfs/write_issue.c:672
 netfs_perform_write+0x1be7/0x1d90 fs/netfs/buffered_write.c:385
 netfs_buffered_write_iter_locked+0xa3/0x1c0 fs/netfs/buffered_write.c:445
 netfs_file_write_iter+0x189/0x440 fs/netfs/buffered_write.c:484
 v9fs_file_write_iter+0xac/0xe0 fs/9p/vfs_file.c:407
 do_iter_readv_writev+0x4f2/0x6a0 fs/read_write.c:-1
 vfs_writev+0x44c/0xcc0 fs/read_write.c:1064
 do_pwritev fs/read_write.c:1165 [inline]
 __do_sys_pwritev2 fs/read_write.c:1224 [inline]
 __se_sys_pwritev2+0x1ad/0x2b0 fs/read_write.c:1215
 __x64_sys_pwritev2+0xc3/0xf0 fs/read_write.c:1215
 x64_sys_call+0x2938/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:329
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fbf42d8e929
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:00007fbf43b72038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007fbf42fb5fa0 RCX: 00007fbf42d8e929
RDX: 0000000000000001 RSI: 0000200000000100 RDI: 0000000000000007
RBP: 00007fbf43b72090 R08: 0000000000008000 R09: 0000000000000004
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fbf42fb5fa0 R15: 00007fff970e6948
 </TASK>
---[ end trace 0000000000000000 ]---