=====================================================
BUG: KMSAN: uninit-value in subshift lib/crypto/aes.c:149 [inline]
BUG: KMSAN: uninit-value in aes_encrypt+0x15cc/0x1db0 lib/crypto/aes.c:282
 subshift lib/crypto/aes.c:149 [inline]
 aes_encrypt+0x15cc/0x1db0 lib/crypto/aes.c:282
 aesti_encrypt+0x7d/0xf0 crypto/aes_ti.c:31
 crypto_ecb_crypt crypto/ecb.c:23 [inline]
 crypto_ecb_encrypt2+0x18a/0x300 crypto/ecb.c:40
 crypto_lskcipher_crypt_sg+0x36b/0x7f0 crypto/lskcipher.c:188
 crypto_lskcipher_encrypt_sg+0x8a/0xc0 crypto/lskcipher.c:207
 crypto_skcipher_encrypt+0x119/0x1e0 crypto/skcipher.c:642
 xts_encrypt+0x3c4/0x550 crypto/xts.c:269
 crypto_skcipher_encrypt+0x1a0/0x1e0 crypto/skcipher.c:643
 fscrypt_crypt_data_unit+0x4ee/0x8f0 fs/crypto/crypto.c:144
 fscrypt_encrypt_pagecache_blocks+0x422/0x900 fs/crypto/crypto.c:207
 ext4_bio_write_folio+0x1377/0x2e50 fs/ext4/page-io.c:525
 mpage_submit_folio+0x360/0x490 fs/ext4/inode.c:1932
 mpage_process_page_bufs+0xb92/0xe30 fs/ext4/inode.c:2045
 mpage_prepare_extent_to_map+0x17a5/0x22a0 fs/ext4/inode.c:2546
 ext4_do_writepages+0x1117/0x62c0 fs/ext4/inode.c:2688
 ext4_writepages+0x312/0x830 fs/ext4/inode.c:2824
 do_writepages+0x427/0xc30 mm/page-writeback.c:2683
 filemap_fdatawrite_wbc mm/filemap.c:398 [inline]
 __filemap_fdatawrite_range mm/filemap.c:431 [inline]
 file_write_and_wait_range+0x6f2/0x7b0 mm/filemap.c:788
 generic_buffers_fsync_noflush+0x7e/0x3c0 fs/buffer.c:600
 ext4_fsync_nojournal fs/ext4/fsync.c:88 [inline]
 ext4_sync_file+0x5ae/0x1390 fs/ext4/fsync.c:151
 vfs_fsync_range+0x1f9/0x260 fs/sync.c:187
 generic_write_sync include/linux/fs.h:2904 [inline]
 ext4_buffered_write_iter+0x9a7/0xaa0 fs/ext4/file.c:305
 ext4_file_write_iter+0x266/0x3820
 do_iter_readv_writev+0x88a/0xa30
 vfs_writev+0x56a/0x14f0 fs/read_write.c:1050
 do_pwritev fs/read_write.c:1146 [inline]
 __do_compat_sys_pwritev2 fs/read_write.c:1291 [inline]
 __se_compat_sys_pwritev2+0x282/0x480 fs/read_write.c:1283
 __ia32_compat_sys_pwritev2+0x11d/0x1a0 fs/read_write.c:1283
 ia32_sys_call+0x3587/0x4180 arch/x86/include/generated/asm/syscalls_32.h:380
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was stored to memory at:
 le128_xor include/crypto/b128ops.h:69 [inline]
 xts_xor_tweak+0x4ae/0xbf0 crypto/xts.c:123
 xts_xor_tweak_pre crypto/xts.c:135 [inline]
 xts_encrypt+0x296/0x550 crypto/xts.c:268
 crypto_skcipher_encrypt+0x1a0/0x1e0 crypto/skcipher.c:643
 fscrypt_crypt_data_unit+0x4ee/0x8f0 fs/crypto/crypto.c:144
 fscrypt_encrypt_pagecache_blocks+0x422/0x900 fs/crypto/crypto.c:207
 ext4_bio_write_folio+0x1377/0x2e50 fs/ext4/page-io.c:525
 mpage_submit_folio+0x360/0x490 fs/ext4/inode.c:1932
 mpage_process_page_bufs+0xb92/0xe30 fs/ext4/inode.c:2045
 mpage_prepare_extent_to_map+0x17a5/0x22a0 fs/ext4/inode.c:2546
 ext4_do_writepages+0x1117/0x62c0 fs/ext4/inode.c:2688
 ext4_writepages+0x312/0x830 fs/ext4/inode.c:2824
 do_writepages+0x427/0xc30 mm/page-writeback.c:2683
 filemap_fdatawrite_wbc mm/filemap.c:398 [inline]
 __filemap_fdatawrite_range mm/filemap.c:431 [inline]
 file_write_and_wait_range+0x6f2/0x7b0 mm/filemap.c:788
 generic_buffers_fsync_noflush+0x7e/0x3c0 fs/buffer.c:600
 ext4_fsync_nojournal fs/ext4/fsync.c:88 [inline]
 ext4_sync_file+0x5ae/0x1390 fs/ext4/fsync.c:151
 vfs_fsync_range+0x1f9/0x260 fs/sync.c:187
 generic_write_sync include/linux/fs.h:2904 [inline]
 ext4_buffered_write_iter+0x9a7/0xaa0 fs/ext4/file.c:305
 ext4_file_write_iter+0x266/0x3820
 do_iter_readv_writev+0x88a/0xa30
 vfs_writev+0x56a/0x14f0 fs/read_write.c:1050
 do_pwritev fs/read_write.c:1146 [inline]
 __do_compat_sys_pwritev2 fs/read_write.c:1291 [inline]
 __se_compat_sys_pwritev2+0x282/0x480 fs/read_write.c:1283
 __ia32_compat_sys_pwritev2+0x11d/0x1a0 fs/read_write.c:1283
 ia32_sys_call+0x3587/0x4180 arch/x86/include/generated/asm/syscalls_32.h:380
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 __alloc_pages_noprof+0x9a7/0xe00 mm/page_alloc.c:4774
 alloc_pages_mpol_noprof+0x299/0x990 mm/mempolicy.c:2265
 alloc_pages_noprof mm/mempolicy.c:2345 [inline]
 folio_alloc_noprof+0x1db/0x310 mm/mempolicy.c:2352
 filemap_alloc_folio_noprof+0xa6/0x440 mm/filemap.c:1010
 __filemap_get_folio+0xac4/0x1550 mm/filemap.c:1952
 ext4_write_begin+0x3e5/0x23d0 fs/ext4/inode.c:1182
 generic_perform_write+0x4d8/0x1080 mm/filemap.c:4056
 ext4_buffered_write_iter+0x561/0xaa0 fs/ext4/file.c:299
 ext4_file_write_iter+0x266/0x3820
 do_iter_readv_writev+0x88a/0xa30
 vfs_writev+0x56a/0x14f0 fs/read_write.c:1050
 do_pwritev fs/read_write.c:1146 [inline]
 __do_compat_sys_pwritev2 fs/read_write.c:1291 [inline]
 __se_compat_sys_pwritev2+0x282/0x480 fs/read_write.c:1283
 __ia32_compat_sys_pwritev2+0x11d/0x1a0 fs/read_write.c:1283
 ia32_sys_call+0x3587/0x4180 arch/x86/include/generated/asm/syscalls_32.h:380
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 1 UID: 0 PID: 13377 Comm: syz.0.1935 Not tainted 6.12.0-syzkaller-01782-gbf9aa14fc523 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
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