=====================================================
BUG: KMSAN: uninit-value in check_template lib/842/842_compress.c:393 [inline]
BUG: KMSAN: uninit-value in process_next lib/842/842_compress.c:456 [inline]
BUG: KMSAN: uninit-value in sw842_compress+0x17fd/0x5990 lib/842/842_compress.c:543
 check_template lib/842/842_compress.c:393 [inline]
 process_next lib/842/842_compress.c:456 [inline]
 sw842_compress+0x17fd/0x5990 lib/842/842_compress.c:543
 crypto842_scompress+0x4f/0x70 crypto/842.c:78
 scomp_acomp_comp_decomp+0x7c6/0xb90
 scomp_acomp_compress+0x32/0x40 crypto/scompress.c:187
 crypto_acomp_compress include/crypto/acompress.h:251 [inline]
 zswap_compress+0x368/0xad0 mm/zswap.c:927
 zswap_store+0x1af3/0x2dd0 mm/zswap.c:1459
 swap_writepage+0x11f/0x470 mm/page_io.c:198
 shmem_writepage+0x1a75/0x1f70 mm/shmem.c:1536
 pageout mm/vmscan.c:680 [inline]
 shrink_folio_list+0x577f/0x7cb0 mm/vmscan.c:1360
 evict_folios+0x9a49/0xbb30 mm/vmscan.c:4560
 try_to_shrink_lruvec+0x13a3/0x1750 mm/vmscan.c:4755
 shrink_one+0x646/0xd20 mm/vmscan.c:4793
 shrink_many mm/vmscan.c:4856 [inline]
 lru_gen_shrink_node mm/vmscan.c:4934 [inline]
 shrink_node+0x451a/0x50f0 mm/vmscan.c:5914
 kswapd_shrink_node mm/vmscan.c:6742 [inline]
 balance_pgdat mm/vmscan.c:6934 [inline]
 kswapd+0x2627/0x4350 mm/vmscan.c:7203
 kthread+0x3e2/0x540 kernel/kthread.c:389
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Uninit was stored to memory at:
 get_next_data lib/842/842_compress.c:411 [inline]
 sw842_compress+0xddb/0x5990 lib/842/842_compress.c:522
 crypto842_scompress+0x4f/0x70 crypto/842.c:78
 scomp_acomp_comp_decomp+0x7c6/0xb90
 scomp_acomp_compress+0x32/0x40 crypto/scompress.c:187
 crypto_acomp_compress include/crypto/acompress.h:251 [inline]
 zswap_compress+0x368/0xad0 mm/zswap.c:927
 zswap_store+0x1af3/0x2dd0 mm/zswap.c:1459
 swap_writepage+0x11f/0x470 mm/page_io.c:198
 shmem_writepage+0x1a75/0x1f70 mm/shmem.c:1536
 pageout mm/vmscan.c:680 [inline]
 shrink_folio_list+0x577f/0x7cb0 mm/vmscan.c:1360
 evict_folios+0x9a49/0xbb30 mm/vmscan.c:4560
 try_to_shrink_lruvec+0x13a3/0x1750 mm/vmscan.c:4755
 shrink_one+0x646/0xd20 mm/vmscan.c:4793
 shrink_many mm/vmscan.c:4856 [inline]
 lru_gen_shrink_node mm/vmscan.c:4934 [inline]
 shrink_node+0x451a/0x50f0 mm/vmscan.c:5914
 kswapd_shrink_node mm/vmscan.c:6742 [inline]
 balance_pgdat mm/vmscan.c:6934 [inline]
 kswapd+0x2627/0x4350 mm/vmscan.c:7203
 kthread+0x3e2/0x540 kernel/kthread.c:389
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Uninit was stored to memory at:
 memcpy_from_iter lib/iov_iter.c:73 [inline]
 iterate_bvec include/linux/iov_iter.h:122 [inline]
 iterate_and_advance2 include/linux/iov_iter.h:249 [inline]
 iterate_and_advance include/linux/iov_iter.h:271 [inline]
 __copy_from_iter lib/iov_iter.c:249 [inline]
 copy_page_from_iter_atomic+0x12bb/0x2ae0 lib/iov_iter.c:481
 copy_folio_from_iter_atomic include/linux/uio.h:186 [inline]
 generic_perform_write+0x896/0x12e0 mm/filemap.c:4032
 shmem_file_write_iter+0x2bd/0x2f0 mm/shmem.c:3074
 do_iter_readv_writev+0x8a1/0xa40
 vfs_iter_write+0x459/0xd50 fs/read_write.c:895
 lo_write_bvec drivers/block/loop.c:243 [inline]
 lo_write_simple drivers/block/loop.c:264 [inline]
 do_req_filebacked drivers/block/loop.c:511 [inline]
 loop_handle_cmd drivers/block/loop.c:1910 [inline]
 loop_process_work+0x15ec/0x3750 drivers/block/loop.c:1945
 loop_rootcg_workfn+0x2b/0x40 drivers/block/loop.c:1976
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3312
 worker_thread+0xea7/0x14f0 kernel/workqueue.c:3393
 kthread+0x3e2/0x540 kernel/kthread.c:389
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Uninit was stored to memory at:
 ntfs_write_bh+0x652/0xdb0 fs/ntfs3/fsntfs.c:1450
 indx_write fs/ntfs3/index.c:1027 [inline]
 indx_insert_into_buffer+0xd8f/0x2010 fs/ntfs3/index.c:1811
 indx_insert_entry+0xa3c/0xee0 fs/ntfs3/index.c:1988
 ntfs_create_inode+0x4391/0x4df0 fs/ntfs3/inode.c:1689
 ntfs_create+0x56/0x70 fs/ntfs3/namei.c:110
 lookup_open fs/namei.c:3578 [inline]
 open_last_lookups fs/namei.c:3647 [inline]
 path_openat+0x2da9/0x6100 fs/namei.c:3883
 do_filp_open+0x20e/0x590 fs/namei.c:3913
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_openat fs/open.c:1447 [inline]
 __se_sys_openat fs/open.c:1442 [inline]
 __x64_sys_openat+0x2a1/0x310 fs/open.c:1442
 x64_sys_call+0x120e/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 hdr_insert_de fs/ntfs3/index.c:838 [inline]
 indx_insert_into_buffer+0xcdf/0x2010 fs/ntfs3/index.c:1807
 indx_insert_entry+0xa3c/0xee0 fs/ntfs3/index.c:1988
 ntfs_create_inode+0x4391/0x4df0 fs/ntfs3/inode.c:1689
 ntfs_create+0x56/0x70 fs/ntfs3/namei.c:110
 lookup_open fs/namei.c:3578 [inline]
 open_last_lookups fs/namei.c:3647 [inline]
 path_openat+0x2da9/0x6100 fs/namei.c:3883
 do_filp_open+0x20e/0x590 fs/namei.c:3913
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_openat fs/open.c:1447 [inline]
 __se_sys_openat fs/open.c:1442 [inline]
 __x64_sys_openat+0x2a1/0x310 fs/open.c:1442
 x64_sys_call+0x120e/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:3998 [inline]
 slab_alloc_node mm/slub.c:4041 [inline]
 kmem_cache_alloc_noprof+0x637/0xb20 mm/slub.c:4048
 ntfs_create_inode+0x5f5/0x4df0 fs/ntfs3/inode.c:1326
 ntfs_create+0x56/0x70 fs/ntfs3/namei.c:110
 lookup_open fs/namei.c:3578 [inline]
 open_last_lookups fs/namei.c:3647 [inline]
 path_openat+0x2da9/0x6100 fs/namei.c:3883
 do_filp_open+0x20e/0x590 fs/namei.c:3913
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_openat fs/open.c:1447 [inline]
 __se_sys_openat fs/open.c:1442 [inline]
 __x64_sys_openat+0x2a1/0x310 fs/open.c:1442
 x64_sys_call+0x120e/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 80 Comm: kswapd0 Not tainted 6.11.0-rc7-syzkaller-00149-g0babf683783d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
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