===================================================== 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+0x3d/0xa0 crypto/aes_ti.c:31 cipher_crypt_one+0x120/0x2e0 crypto/cipher.c:75 crypto_cipher_encrypt_one+0x33/0x40 crypto/cipher.c:82 adiantum_crypt+0x939/0xe60 crypto/adiantum.c:383 adiantum_encrypt+0x33/0x40 crypto/adiantum.c:419 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+0x1383/0x30d0 fs/ext4/page-io.c:552 mpage_submit_folio+0x399/0x3d0 fs/ext4/inode.c:2087 mpage_process_page_bufs+0xaef/0xf50 fs/ext4/inode.c:2198 mpage_process_folio fs/ext4/inode.c:2251 [inline] mpage_map_and_submit_buffers fs/ext4/inode.c:2320 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2520 [inline] ext4_do_writepages+0x3ac4/0x77a0 fs/ext4/inode.c:2932 ext4_writepages+0x338/0x870 fs/ext4/inode.c:3026 do_writepages+0x3f2/0x860 mm/page-writeback.c:2598 __writeback_single_inode+0x101/0x1190 fs/fs-writeback.c:1737 writeback_sb_inodes+0xb2d/0x1f10 fs/fs-writeback.c:2030 wb_writeback+0x4ce/0xc00 fs/fs-writeback.c:2216 wb_do_writeback fs/fs-writeback.c:2363 [inline] wb_workfn+0x397/0x1910 fs/fs-writeback.c:2403 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xb91/0x1d80 kernel/workqueue.c:3340 worker_thread+0xedf/0x1590 kernel/workqueue.c:3421 kthread+0xd5c/0xf00 kernel/kthread.c:463 ret_from_fork+0x208/0x710 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Uninit was stored to memory at: le128_add crypto/adiantum.c:191 [inline] adiantum_crypt+0xcf7/0xe60 crypto/adiantum.c:379 adiantum_encrypt+0x33/0x40 crypto/adiantum.c:419 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+0x1383/0x30d0 fs/ext4/page-io.c:552 mpage_submit_folio+0x399/0x3d0 fs/ext4/inode.c:2087 mpage_process_page_bufs+0xaef/0xf50 fs/ext4/inode.c:2198 mpage_process_folio fs/ext4/inode.c:2251 [inline] mpage_map_and_submit_buffers fs/ext4/inode.c:2320 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2520 [inline] ext4_do_writepages+0x3ac4/0x77a0 fs/ext4/inode.c:2932 ext4_writepages+0x338/0x870 fs/ext4/inode.c:3026 do_writepages+0x3f2/0x860 mm/page-writeback.c:2598 __writeback_single_inode+0x101/0x1190 fs/fs-writeback.c:1737 writeback_sb_inodes+0xb2d/0x1f10 fs/fs-writeback.c:2030 wb_writeback+0x4ce/0xc00 fs/fs-writeback.c:2216 wb_do_writeback fs/fs-writeback.c:2363 [inline] wb_workfn+0x397/0x1910 fs/fs-writeback.c:2403 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xb91/0x1d80 kernel/workqueue.c:3340 worker_thread+0xedf/0x1590 kernel/workqueue.c:3421 kthread+0xd5c/0xf00 kernel/kthread.c:463 ret_from_fork+0x208/0x710 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Uninit was stored to memory at: adiantum_crypt+0x531/0xe60 crypto/adiantum.c:368 adiantum_encrypt+0x33/0x40 crypto/adiantum.c:419 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+0x1383/0x30d0 fs/ext4/page-io.c:552 mpage_submit_folio+0x399/0x3d0 fs/ext4/inode.c:2087 mpage_process_page_bufs+0xaef/0xf50 fs/ext4/inode.c:2198 mpage_process_folio fs/ext4/inode.c:2251 [inline] mpage_map_and_submit_buffers fs/ext4/inode.c:2320 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2520 [inline] ext4_do_writepages+0x3ac4/0x77a0 fs/ext4/inode.c:2932 ext4_writepages+0x338/0x870 fs/ext4/inode.c:3026 do_writepages+0x3f2/0x860 mm/page-writeback.c:2598 __writeback_single_inode+0x101/0x1190 fs/fs-writeback.c:1737 writeback_sb_inodes+0xb2d/0x1f10 fs/fs-writeback.c:2030 wb_writeback+0x4ce/0xc00 fs/fs-writeback.c:2216 wb_do_writeback fs/fs-writeback.c:2363 [inline] wb_workfn+0x397/0x1910 fs/fs-writeback.c:2403 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xb91/0x1d80 kernel/workqueue.c:3340 worker_thread+0xedf/0x1590 kernel/workqueue.c:3421 kthread+0xd5c/0xf00 kernel/kthread.c:463 ret_from_fork+0x208/0x710 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Uninit was created at: __alloc_frozen_pages_noprof+0x421/0xab0 mm/page_alloc.c:5233 alloc_pages_mpol+0x328/0x860 mm/mempolicy.c:2486 alloc_frozen_pages_noprof mm/mempolicy.c:2557 [inline] alloc_pages_noprof mm/mempolicy.c:2577 [inline] folio_alloc_noprof+0x109/0x360 mm/mempolicy.c:2587 filemap_alloc_folio_noprof+0xda/0x480 mm/filemap.c:1013 __filemap_get_folio_mpol+0xb4f/0x1960 mm/filemap.c:2006 __filemap_get_folio include/linux/pagemap.h:763 [inline] write_begin_get_folio include/linux/pagemap.h:789 [inline] ext4_write_begin+0x6d3/0x2d70 fs/ext4/inode.c:1323 ext4_da_write_begin+0x75e/0x1430 fs/ext4/inode.c:3130 generic_perform_write+0x365/0x1050 mm/filemap.c:4314 ext4_buffered_write_iter+0x61a/0xce0 fs/ext4/file.c:299 ext4_file_write_iter+0x2a2/0x3d90 fs/ext4/file.c:-1 iter_file_splice_write+0x12b3/0x20b0 fs/splice.c:738 do_splice_from fs/splice.c:938 [inline] direct_splice_actor+0x31a/0x7d0 fs/splice.c:1161 splice_direct_to_actor+0x9a2/0x1550 fs/splice.c:1105 do_splice_direct_actor fs/splice.c:1204 [inline] do_splice_direct+0x1e0/0x350 fs/splice.c:1230 do_sendfile+0x9eb/0x1110 fs/read_write.c:1370 __do_compat_sys_sendfile fs/read_write.c:1452 [inline] __se_compat_sys_sendfile fs/read_write.c:1435 [inline] __ia32_compat_sys_sendfile+0x385/0x4d0 fs/read_write.c:1435 ia32_sys_call+0xec5/0x4340 arch/x86/include/generated/asm/syscalls_32.h:188 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x154/0x330 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x38/0x80 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: 4255 Comm: kworker/u8:31 Not tainted syzkaller #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: writeback wb_workfn (flush-7:1) =====================================================