BTRFS info (device loop2): turning on sync discard BTRFS info (device loop2): using free space tree BTRFS info (device loop2): enabling ssd optimizations ===================================================== BUG: KMSAN: uninit-value in btrfs_comp_cpu_keys fs/btrfs/ctree.c:769 [inline] BUG: KMSAN: uninit-value in comp_keys fs/btrfs/ctree.c:745 [inline] BUG: KMSAN: uninit-value in btrfs_bin_search+0x74c/0xb30 fs/btrfs/ctree.c:935 btrfs_comp_cpu_keys fs/btrfs/ctree.c:769 [inline] comp_keys fs/btrfs/ctree.c:745 [inline] btrfs_bin_search+0x74c/0xb30 fs/btrfs/ctree.c:935 search_for_key_slot fs/btrfs/ctree.c:1925 [inline] search_leaf fs/btrfs/ctree.c:2017 [inline] btrfs_search_slot+0x3329/0x4680 fs/btrfs/ctree.c:2230 btrfs_update_root+0xdd/0x1060 fs/btrfs/root-tree.c:137 _btrfs_ioctl_set_received_subvol+0x11cc/0x18a0 fs/btrfs/ioctl.c:3992 btrfs_ioctl_set_received_subvol+0x101/0x2a0 fs/btrfs/ioctl.c:4076 btrfs_ioctl+0x989/0x1290 fs/btrfs/ioctl.c:4643 btrfs_compat_ioctl+0x65/0x70 fs/btrfs/ioctl.c:4716 __do_compat_sys_ioctl fs/ioctl.c:968 [inline] __se_compat_sys_ioctl+0x79b/0xfe0 fs/ioctl.c:910 __ia32_compat_sys_ioctl+0x93/0xd0 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+0x9a4/0xe00 mm/page_alloc.c:4500 alloc_pages+0xd01/0x1040 folio_alloc+0x42/0x120 mm/mempolicy.c:2308 filemap_alloc_folio+0xa5/0x430 mm/filemap.c:979 __filemap_get_folio+0x908/0x13a0 mm/filemap.c:1933 pagecache_get_page+0x4e/0x200 mm/folio-compat.c:99 find_or_create_page include/linux/pagemap.h:639 [inline] alloc_extent_buffer+0x6e8/0x2e60 fs/btrfs/extent_io.c:3601 btrfs_find_create_tree_block+0x46/0x60 fs/btrfs/disk-io.c:588 btrfs_init_new_buffer fs/btrfs/extent-tree.c:4771 [inline] btrfs_alloc_tree_block+0x344/0x1d10 fs/btrfs/extent-tree.c:4892 __btrfs_cow_block+0x57a/0x2200 fs/btrfs/ctree.c:546 btrfs_cow_block+0x7cc/0xa00 fs/btrfs/ctree.c:712 btrfs_search_slot+0x16fb/0x4680 fs/btrfs/ctree.c:2194 btrfs_update_root+0xdd/0x1060 fs/btrfs/root-tree.c:137 _btrfs_ioctl_set_received_subvol+0x11cc/0x18a0 fs/btrfs/ioctl.c:3992 btrfs_ioctl_set_received_subvol+0x101/0x2a0 fs/btrfs/ioctl.c:4076 btrfs_ioctl+0x989/0x1290 fs/btrfs/ioctl.c:4643 btrfs_compat_ioctl+0x65/0x70 fs/btrfs/ioctl.c:4716 __do_compat_sys_ioctl fs/ioctl.c:968 [inline] __se_compat_sys_ioctl+0x79b/0xfe0 fs/ioctl.c:910 __ia32_compat_sys_ioctl+0x93/0xd0 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: 0 PID: 5240 Comm: syz-executor.2 Not tainted 6.5.0-rc7-syzkaller-00190-g85eb043618bb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 =====================================================