BTRFS info (device loop2): enabling ssd optimizations
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BUG: KMSAN: uninit-value in iterate_inode_refs fs/btrfs/backref.c:2551 [inline]
BUG: KMSAN: uninit-value in paths_from_inode+0xde6/0x1f10 fs/btrfs/backref.c:2685
 iterate_inode_refs fs/btrfs/backref.c:2551 [inline]
 paths_from_inode+0xde6/0x1f10 fs/btrfs/backref.c:2685
 btrfs_ioctl_ino_to_path+0x35a/0x7d0 fs/btrfs/ioctl.c:3334
 btrfs_ioctl+0xb87/0x1a80 fs/btrfs/ioctl.c:4589
 btrfs_compat_ioctl+0xf8/0x110 fs/btrfs/ioctl.c:4701
 __do_compat_sys_ioctl fs/ioctl.c:968 [inline]
 __se_compat_sys_ioctl+0xa1d/0x1120 fs/ioctl.c:910
 __ia32_compat_sys_ioctl+0xdd/0x120 fs/ioctl.c:910
 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+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Uninit was created at:
 __alloc_pages+0x926/0x10a0 mm/page_alloc.c:5572
 __alloc_pages_bulk+0x1d73/0x2610 mm/page_alloc.c:5497
 alloc_pages_bulk_array include/linux/gfp.h:201 [inline]
 btrfs_alloc_page_array fs/btrfs/extent_io.c:1227 [inline]
 btrfs_clone_extent_buffer+0x4df/0x11e0 fs/btrfs/extent_io.c:4201
 iterate_inode_refs fs/btrfs/backref.c:2542 [inline]
 paths_from_inode+0x340/0x1f10 fs/btrfs/backref.c:2685
 btrfs_ioctl_ino_to_path+0x35a/0x7d0 fs/btrfs/ioctl.c:3334
 btrfs_ioctl+0xb87/0x1a80 fs/btrfs/ioctl.c:4589
 btrfs_compat_ioctl+0xf8/0x110 fs/btrfs/ioctl.c:4701
 __do_compat_sys_ioctl fs/ioctl.c:968 [inline]
 __se_compat_sys_ioctl+0xa1d/0x1120 fs/ioctl.c:910
 __ia32_compat_sys_ioctl+0xdd/0x120 fs/ioctl.c:910
 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+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

CPU: 1 PID: 6214 Comm: syz-executor.2 Not tainted 6.2.0-rc8-syzkaller-80998-g9c866a280876 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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