syzbot

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BUG: KMSAN: uninit-value in ext4_inode_journal_mode+0x24f/0x480 fs/ext4/ext4_jbd2.c:16
 ext4_inode_journal_mode+0x24f/0x480 fs/ext4/ext4_jbd2.c:16
 ext4_should_journal_data fs/ext4/ext4_jbd2.h:465 [inline]
 ext4_evict_inode+0x166/0x2660 fs/ext4/inode.c:200
 evict+0x365/0x9a0 fs/inode.c:664
 iput_final fs/inode.c:1744 [inline]
 iput+0x985/0xdd0 fs/inode.c:1770
 __ext4_new_inode+0xe72/0x7f50 fs/ext4/ialloc.c:1362
 ext4_tmpfile+0x350/0x770 fs/ext4/namei.c:2840
 vfs_tmpfile+0x220/0x510 fs/namei.c:3568
 do_tmpfile+0x209/0x620 fs/namei.c:3603
 path_openat+0x3cf2/0x5780 fs/namei.c:3644
 do_filp_open+0x249/0x660 fs/namei.c:3680
 do_sys_openat2+0x1f0/0x910 fs/open.c:1278
 do_sys_open fs/open.c:1294 [inline]
 __do_compat_sys_openat fs/open.c:1354 [inline]
 __se_compat_sys_openat fs/open.c:1352 [inline]
 __ia32_compat_sys_openat+0x2a7/0x330 fs/open.c:1352
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Uninit was created at:
 __alloc_pages+0x9f1/0xe80 mm/page_alloc.c:5471
 alloc_pages+0x927/0xc00 mm/mempolicy.c:2272
 alloc_slab_page mm/slub.c:1839 [inline]
 allocate_slab+0x19b/0xef0 mm/slub.c:1984
 new_slab mm/slub.c:2044 [inline]
 ___slab_alloc+0xa85/0x1c60 mm/slub.c:3046
 __slab_alloc mm/slub.c:3133 [inline]
 slab_alloc_node mm/slub.c:3224 [inline]
 slab_alloc mm/slub.c:3266 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3273 [inline]
 kmem_cache_alloc_lru+0x723/0xbe0 mm/slub.c:3290
 alloc_inode_sb include/linux/fs.h:2965 [inline]
 ext4_alloc_inode+0x5f/0x880 fs/ext4/super.c:1327
 alloc_inode+0x83/0x440 fs/inode.c:260
 new_inode_pseudo fs/inode.c:1018 [inline]
 new_inode+0x3c/0x4e0 fs/inode.c:1047
 __ext4_new_inode+0x2a9/0x7f50 fs/ext4/ialloc.c:960
 ext4_symlink+0x584/0x14f0 fs/ext4/namei.c:3336
 vfs_symlink+0x41c/0x610 fs/namei.c:4341
 do_symlinkat+0x26c/0x930 fs/namei.c:4370
 __do_sys_symlinkat fs/namei.c:4387 [inline]
 __se_sys_symlinkat fs/namei.c:4384 [inline]
 __ia32_sys_symlinkat+0xef/0x160 fs/namei.c:4384
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

CPU: 0 PID: 3729 Comm: syz-executor.0 Not tainted 5.19.0-syzkaller-32656-gd891e35583bf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
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