syzbot

EXT4-fs error (device loop5): ext4_orphan_get:1418: comm syz.5.10451: bad orphan inode 131083
EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
=====================================================
BUG: KMSAN: uninit-value in subshift lib/crypto/aes.c:150 [inline]
BUG: KMSAN: uninit-value in aes_encrypt+0x1239/0x1960 lib/crypto/aes.c:283
 subshift lib/crypto/aes.c:150 [inline]
 aes_encrypt+0x1239/0x1960 lib/crypto/aes.c:283
 aesti_encrypt+0x7d/0xf0 crypto/aes_ti.c:31
 crypto_ecb_crypt crypto/ecb.c:23 [inline]
 crypto_ecb_encrypt2+0x13f/0x300 crypto/ecb.c:40
 crypto_lskcipher_crypt_sg+0x3a9/0x930 crypto/lskcipher.c:188
 crypto_lskcipher_encrypt_sg+0x8b/0xc0 crypto/lskcipher.c:207
 crypto_skcipher_encrypt+0x111/0x1e0 crypto/skcipher.c:194
 xts_encrypt+0x2e1/0x570 crypto/xts.c:269
 crypto_skcipher_encrypt+0x187/0x1e0 crypto/skcipher.c:195
 fscrypt_crypt_data_unit+0x38e/0x590 fs/crypto/crypto.c:139
 fscrypt_encrypt_pagecache_blocks+0x430/0x900 fs/crypto/crypto.c:197
 ext4_bio_write_folio+0x1383/0x30d0 fs/ext4/page-io.c:552
 mpage_submit_folio fs/ext4/inode.c:2080 [inline]
 mpage_process_page_bufs+0xf1b/0x13e0 fs/ext4/inode.c:2191
 mpage_prepare_extent_to_map+0x1792/0x2a10 fs/ext4/inode.c:2736
 ext4_do_writepages+0x11b6/0x8020 fs/ext4/inode.c:2877
 ext4_writepages+0x338/0x870 fs/ext4/inode.c:3025
 do_writepages+0x3ef/0x860 mm/page-writeback.c:2604
 filemap_fdatawrite_wbc mm/filemap.c:389 [inline]
 __filemap_fdatawrite_range mm/filemap.c:422 [inline]
 file_write_and_wait_range+0x6f0/0x7d0 mm/filemap.c:797
 generic_buffers_fsync_noflush+0x79/0x3c0 fs/buffer.c:609
 ext4_fsync_nojournal fs/ext4/fsync.c:88 [inline]
 ext4_sync_file+0x587/0x12f0 fs/ext4/fsync.c:147
 vfs_fsync_range+0x1a1/0x240 fs/sync.c:187
 generic_write_sync include/linux/fs.h:3046 [inline]
 ext4_buffered_write_iter+0xae9/0xce0 fs/ext4/file.c:305
 ext4_file_write_iter+0x2a2/0x3d90 fs/ext4/file.c:-1
 do_iter_readv_writev+0x9de/0xc20 fs/read_write.c:-1
 vfs_writev+0x52a/0x1500 fs/read_write.c:1057
 do_pwritev fs/read_write.c:1153 [inline]
 __do_compat_sys_pwritev2 fs/read_write.c:1298 [inline]
 __se_compat_sys_pwritev2 fs/read_write.c:1290 [inline]
 __ia32_compat_sys_pwritev2+0x43d/0x6b0 fs/read_write.c:1290
 ia32_sys_call+0x1810/0x4310 arch/x86/include/generated/asm/syscalls_32.h:380
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x150 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was stored to memory at:
 le128_xor include/crypto/b128ops.h:69 [inline]
 xts_xor_tweak+0x566/0xbd0 crypto/xts.c:123
 xts_xor_tweak_pre crypto/xts.c:135 [inline]
 xts_encrypt+0x278/0x570 crypto/xts.c:268
 crypto_skcipher_encrypt+0x187/0x1e0 crypto/skcipher.c:195
 fscrypt_crypt_data_unit+0x38e/0x590 fs/crypto/crypto.c:139
 fscrypt_encrypt_pagecache_blocks+0x430/0x900 fs/crypto/crypto.c:197
 ext4_bio_write_folio+0x1383/0x30d0 fs/ext4/page-io.c:552
 mpage_submit_folio fs/ext4/inode.c:2080 [inline]
 mpage_process_page_bufs+0xf1b/0x13e0 fs/ext4/inode.c:2191
 mpage_prepare_extent_to_map+0x1792/0x2a10 fs/ext4/inode.c:2736
 ext4_do_writepages+0x11b6/0x8020 fs/ext4/inode.c:2877
 ext4_writepages+0x338/0x870 fs/ext4/inode.c:3025
 do_writepages+0x3ef/0x860 mm/page-writeback.c:2604
 filemap_fdatawrite_wbc mm/filemap.c:389 [inline]
 __filemap_fdatawrite_range mm/filemap.c:422 [inline]
 file_write_and_wait_range+0x6f0/0x7d0 mm/filemap.c:797
 generic_buffers_fsync_noflush+0x79/0x3c0 fs/buffer.c:609
 ext4_fsync_nojournal fs/ext4/fsync.c:88 [inline]
 ext4_sync_file+0x587/0x12f0 fs/ext4/fsync.c:147
 vfs_fsync_range+0x1a1/0x240 fs/sync.c:187
 generic_write_sync include/linux/fs.h:3046 [inline]
 ext4_buffered_write_iter+0xae9/0xce0 fs/ext4/file.c:305
 ext4_file_write_iter+0x2a2/0x3d90 fs/ext4/file.c:-1
 do_iter_readv_writev+0x9de/0xc20 fs/read_write.c:-1
 vfs_writev+0x52a/0x1500 fs/read_write.c:1057
 do_pwritev fs/read_write.c:1153 [inline]
 __do_compat_sys_pwritev2 fs/read_write.c:1298 [inline]
 __se_compat_sys_pwritev2 fs/read_write.c:1290 [inline]
 __ia32_compat_sys_pwritev2+0x43d/0x6b0 fs/read_write.c:1290
 ia32_sys_call+0x1810/0x4310 arch/x86/include/generated/asm/syscalls_32.h:380
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x150 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 __alloc_frozen_pages_noprof+0x689/0xf00 mm/page_alloc.c:5206
 alloc_pages_mpol+0x328/0x860 mm/mempolicy.c:2416
 alloc_frozen_pages_noprof mm/mempolicy.c:2487 [inline]
 alloc_pages_noprof mm/mempolicy.c:2507 [inline]
 folio_alloc_noprof+0x109/0x360 mm/mempolicy.c:2517
 filemap_alloc_folio_noprof+0x9d/0x420 mm/filemap.c:1020
 __filemap_get_folio+0xb45/0x1930 mm/filemap.c:2012
 write_begin_get_folio include/linux/pagemap.h:784 [inline]
 ext4_write_begin+0x6d9/0x2d70 fs/ext4/inode.c:1318
 generic_perform_write+0x362/0x1050 mm/filemap.c:4242
 ext4_buffered_write_iter+0x61a/0xce0 fs/ext4/file.c:299
 ext4_file_write_iter+0x2a2/0x3d90 fs/ext4/file.c:-1
 do_iter_readv_writev+0x9de/0xc20 fs/read_write.c:-1
 vfs_writev+0x52a/0x1500 fs/read_write.c:1057
 do_pwritev fs/read_write.c:1153 [inline]
 __do_compat_sys_pwritev2 fs/read_write.c:1298 [inline]
 __se_compat_sys_pwritev2 fs/read_write.c:1290 [inline]
 __ia32_compat_sys_pwritev2+0x43d/0x6b0 fs/read_write.c:1290
 ia32_sys_call+0x1810/0x4310 arch/x86/include/generated/asm/syscalls_32.h:380
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x150 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 1 UID: 0 PID: 8113 Comm: syz.5.10451 Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
=====================================================