=====================================================
BUG: KMSAN: uninit-value in enc_quarterround lib/crypto/aes.c:330 [inline]
BUG: KMSAN: uninit-value in aes_encrypt_generic lib/crypto/aes.c:368 [inline]
BUG: KMSAN: uninit-value in aes_encrypt_arch lib/crypto/aes.c:464 [inline]
BUG: KMSAN: uninit-value in aes_encrypt+0x92d/0x11b0 lib/crypto/aes.c:504
 enc_quarterround lib/crypto/aes.c:330 [inline]
 aes_encrypt_generic lib/crypto/aes.c:368 [inline]
 aes_encrypt_arch lib/crypto/aes.c:464 [inline]
 aes_encrypt+0x92d/0x11b0 lib/crypto/aes.c:504
 crypto_aes_encrypt+0x3f/0x50 crypto/aes.c:26
 crypto_ecb_crypt crypto/ecb.c:23 [inline]
 crypto_ecb_encrypt2+0x142/0x300 crypto/ecb.c:40
 crypto_lskcipher_crypt_sg+0x3ad/0x960 crypto/lskcipher.c:188
 crypto_lskcipher_encrypt_sg+0x8b/0xc0 crypto/lskcipher.c:207
 crypto_skcipher_encrypt+0x111/0x1e0 crypto/skcipher.c:443
 xts_encrypt+0x2e1/0x570 crypto/xts.c:269
 crypto_skcipher_encrypt+0x18a/0x1e0 crypto/skcipher.c:444
 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+0x138c/0x32a0 fs/ext4/page-io.c:553
 mpage_submit_folio+0x399/0x3d0 fs/ext4/inode.c:2080
 mpage_process_page_bufs+0xaef/0xf50 fs/ext4/inode.c:2191
 mpage_prepare_extent_to_map+0x175d/0x2660 fs/ext4/inode.c:2730
 ext4_do_writepages+0x11a0/0x7950 fs/ext4/inode.c:2871
 ext4_writepages+0x337/0x870 fs/ext4/inode.c:3019
 do_writepages+0x3f2/0x860 mm/page-writeback.c:2554
 __writeback_single_inode+0xfc/0x1440 fs/fs-writeback.c:1750
 writeback_sb_inodes+0xb3b/0x1d90 fs/fs-writeback.c:2042
 wb_writeback+0x4f1/0xcd0 fs/fs-writeback.c:2227
 wb_do_writeback fs/fs-writeback.c:2374 [inline]
 wb_workfn+0x3b9/0x19b0 fs/fs-writeback.c:2414
 process_one_work kernel/workqueue.c:3275 [inline]
 process_scheduled_works+0xb21/0x1e30 kernel/workqueue.c:3358
 worker_thread+0xede/0x1580 kernel/workqueue.c:3439
 kthread+0x53f/0x600 kernel/kthread.c:467
 ret_from_fork+0x20f/0x910 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was stored to memory at:
 le128_xor include/crypto/b128ops.h:69 [inline]
 xts_xor_tweak+0x576/0xa90 crypto/xts.c:123
 xts_xor_tweak_pre crypto/xts.c:135 [inline]
 xts_encrypt+0x278/0x570 crypto/xts.c:268
 crypto_skcipher_encrypt+0x18a/0x1e0 crypto/skcipher.c:444
 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+0x138c/0x32a0 fs/ext4/page-io.c:553
 mpage_submit_folio+0x399/0x3d0 fs/ext4/inode.c:2080
 mpage_process_page_bufs+0xaef/0xf50 fs/ext4/inode.c:2191
 mpage_prepare_extent_to_map+0x175d/0x2660 fs/ext4/inode.c:2730
 ext4_do_writepages+0x11a0/0x7950 fs/ext4/inode.c:2871
 ext4_writepages+0x337/0x870 fs/ext4/inode.c:3019
 do_writepages+0x3f2/0x860 mm/page-writeback.c:2554
 __writeback_single_inode+0xfc/0x1440 fs/fs-writeback.c:1750
 writeback_sb_inodes+0xb3b/0x1d90 fs/fs-writeback.c:2042
 wb_writeback+0x4f1/0xcd0 fs/fs-writeback.c:2227
 wb_do_writeback fs/fs-writeback.c:2374 [inline]
 wb_workfn+0x3b9/0x19b0 fs/fs-writeback.c:2414
 process_one_work kernel/workqueue.c:3275 [inline]
 process_scheduled_works+0xb21/0x1e30 kernel/workqueue.c:3358
 worker_thread+0xede/0x1580 kernel/workqueue.c:3439
 kthread+0x53f/0x600 kernel/kthread.c:467
 ret_from_fork+0x20f/0x910 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was created at:
 __alloc_frozen_pages_noprof+0x6f7/0x1020 mm/page_alloc.c:5273
 alloc_pages_mpol+0x328/0x860 mm/mempolicy.c:2484
 alloc_frozen_pages_noprof mm/mempolicy.c:2555 [inline]
 alloc_pages_noprof mm/mempolicy.c:2575 [inline]
 folio_alloc_noprof+0x108/0x360 mm/mempolicy.c:2585
 filemap_alloc_folio_noprof+0xd9/0x480 mm/filemap.c:1013
 __filemap_get_folio_mpol+0xb43/0x1960 mm/filemap.c:2006
 __filemap_get_folio include/linux/pagemap.h:774 [inline]
 write_begin_get_folio include/linux/pagemap.h:800 [inline]
 ext4_write_begin+0x6dd/0x2db0 fs/ext4/inode.c:1316
 generic_perform_write+0x364/0x1050 mm/filemap.c:4314
 ext4_buffered_write_iter+0x61a/0xce0 fs/ext4/file.c:300
 ext4_file_write_iter+0x24b4/0x3d80 fs/ext4/file.c:-1
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0xbe1/0x15c0 fs/read_write.c:688
 ksys_pwrite64+0x1d6/0x2a0 fs/read_write.c:795
 __do_sys_ia32_pwrite64 arch/x86/kernel/sys_ia32.c:78 [inline]
 __se_sys_ia32_pwrite64 arch/x86/kernel/sys_ia32.c:75 [inline]
 __ia32_sys_ia32_pwrite64+0xf0/0x150 arch/x86/kernel/sys_ia32.c:75
 ia32_sys_call+0xb47/0x4360 arch/x86/include/generated/asm/syscalls_32.h:182
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0x17f/0x3f0 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/syscall_32.c:332
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:370
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 1 UID: 0 PID: 7234 Comm: kworker/u8:14 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: writeback wb_workfn (flush-7:9)
=====================================================