FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted 6.12.0-rc4-syzkaller-00256-gc71f8fb4dc91 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:53 [inline]
 should_fail_ex+0x3b0/0x4e0 lib/fault-inject.c:154
 should_failslab+0xac/0x100 mm/failslab.c:46
 slab_pre_alloc_hook mm/slub.c:4038 [inline]
 slab_alloc_node mm/slub.c:4114 [inline]
 __kmalloc_cache_noprof+0x6c/0x2c0 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 netfs_buffer_make_space+0x12b/0x4a0 fs/netfs/misc.c:30
 netfs_buffer_append_folio+0xbb/0x560 fs/netfs/misc.c:69
 netfs_write_folio+0xe0a/0x2070 fs/netfs/write_issue.c:432
 netfs_writepages+0x8aa/0xb80 fs/netfs/write_issue.c:581
 do_writepages+0x35d/0x870 mm/page-writeback.c:2683
 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:398
 __filemap_fdatawrite_range mm/filemap.c:431 [inline]
 file_write_and_wait_range+0x195/0x280 mm/filemap.c:788
 v9fs_file_fsync+0xf3/0x1d0 fs/9p/vfs_file.c:418
 generic_write_sync include/linux/fs.h:2871 [inline]
 netfs_file_write_iter+0x36d/0x3f0 fs/netfs/buffered_write.c:487
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0xaeb/0xd30 fs/read_write.c:683
 ksys_write+0x183/0x2b0 fs/read_write.c:736
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa49517e719
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:00007fa495f1f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa495335f80 RCX: 00007fa49517e719
RDX: 000000000000fdef RSI: 0000000020000100 RDI: 0000000000000007
RBP: 00007fa495f1f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007fa495335f80 R15: 00007ffeb6442018
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5327 at lib/iov_iter.c:255 _copy_from_iter+0x35b/0x1e70 lib/iov_iter.c:255
Modules linked in:
CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted 6.12.0-rc4-syzkaller-00256-gc71f8fb4dc91 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:_copy_from_iter+0x35b/0x1e70 lib/iov_iter.c:255
Code: 84 24 20 01 00 00 0f 85 8e 1a 00 00 48 8b 44 24 18 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 26 12 da fc 90 <0f> 0b 90 eb 17 e8 1b 12 da fc 4c 89 e8 4c 89 6c 24 18 e9 f8 fd ff
RSP: 0018:ffffc9000d176be0 EFLAGS: 00010293
RAX: ffffffff84bad84a RBX: 0000000000000000 RCX: ffff88801f7a4880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000d176d50 R08: ffffffff84bad5af R09: 1ffffd400027e400
R10: dffffc0000000000 R11: fffff9400027e401 R12: ffff88804fc80017
R13: 0000000000007fec R14: ffff888032b776a2 R15: 1ffff92001a2ed90
FS:  00007fa495f1f6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000f000 CR3: 00000000363e2000 CR4: 0000000000352ef0
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+0x1c75/0x29e0 net/9p/protocol.c:614
 p9_client_prepare_req+0xa8d/0xf50 net/9p/client.c:651
 p9_client_rpc+0x19d/0xac0 net/9p/client.c:691
 p9_client_write+0x328/0x7a0 net/9p/client.c:1645
 v9fs_issue_write+0xfd/0x1c0 fs/9p/vfs_addr.c:59
 netfs_do_issue_write fs/netfs/write_issue.c:233 [inline]
 netfs_issue_write fs/netfs/write_issue.c:260 [inline]
 netfs_advance_write+0x972/0xbd0 fs/netfs/write_issue.c:301
 netfs_write_folio+0x12fb/0x2070 fs/netfs/write_issue.c:485
 netfs_writepages+0x8aa/0xb80 fs/netfs/write_issue.c:581
 do_writepages+0x35d/0x870 mm/page-writeback.c:2683
 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:398
 __filemap_fdatawrite_range mm/filemap.c:431 [inline]
 file_write_and_wait_range+0x195/0x280 mm/filemap.c:788
 v9fs_file_fsync+0xf3/0x1d0 fs/9p/vfs_file.c:418
 generic_write_sync include/linux/fs.h:2871 [inline]
 netfs_file_write_iter+0x36d/0x3f0 fs/netfs/buffered_write.c:487
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0xaeb/0xd30 fs/read_write.c:683
 ksys_write+0x183/0x2b0 fs/read_write.c:736
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa49517e719
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:00007fa495f1f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa495335f80 RCX: 00007fa49517e719
RDX: 000000000000fdef RSI: 0000000020000100 RDI: 0000000000000007
RBP: 00007fa495f1f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007fa495335f80 R15: 00007ffeb6442018
 </TASK>