loop7: detected capacity change from 0 to 8 ===================================================== BUG: KMSAN: uninit-value in squashfs_inode_lookup fs/squashfs/export.c:50 [inline] BUG: KMSAN: uninit-value in squashfs_export_iget fs/squashfs/export.c:74 [inline] BUG: KMSAN: uninit-value in squashfs_get_parent+0x3e9/0x540 fs/squashfs/export.c:108 squashfs_inode_lookup fs/squashfs/export.c:50 [inline] squashfs_export_iget fs/squashfs/export.c:74 [inline] squashfs_get_parent+0x3e9/0x540 fs/squashfs/export.c:108 reconnect_one fs/exportfs/expfs.c:130 [inline] reconnect_path+0x305/0xd30 fs/exportfs/expfs.c:220 exportfs_decode_fh_raw+0x8bf/0xef0 fs/exportfs/expfs.c:535 do_handle_to_path+0xe5/0x310 fs/fhandle.c:270 handle_to_path fs/fhandle.c:394 [inline] do_handle_open+0xcb4/0x1220 fs/fhandle.c:409 __do_sys_open_by_handle_at fs/fhandle.c:449 [inline] __se_sys_open_by_handle_at fs/fhandle.c:440 [inline] __x64_sys_open_by_handle_at+0xa6/0x100 fs/fhandle.c:440 x64_sys_call+0x2f60/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:305 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit was created at: __alloc_frozen_pages_noprof+0x689/0xf00 mm/page_alloc.c:5171 alloc_pages_mpol+0x328/0x860 mm/mempolicy.c:2416 alloc_frozen_pages_noprof+0xf7/0x200 mm/mempolicy.c:2487 alloc_slab_page mm/slub.c:2492 [inline] allocate_slab+0x24d/0x1220 mm/slub.c:2660 new_slab mm/slub.c:2714 [inline] ___slab_alloc+0xff3/0x3470 mm/slub.c:3901 __slab_alloc mm/slub.c:3992 [inline] __slab_alloc_node mm/slub.c:4067 [inline] slab_alloc_node mm/slub.c:4228 [inline] kmem_cache_alloc_lru_noprof+0x922/0xed0 mm/slub.c:4259 squashfs_alloc_inode+0x5a/0xd0 fs/squashfs/super.c:673 alloc_inode+0x8a/0x4a0 fs/inode.c:346 new_inode+0x39/0x460 fs/inode.c:1145 squashfs_fill_super+0x218c/0x3670 fs/squashfs/super.c:339 get_tree_bdev_flags+0x6e3/0x920 fs/super.c:1692 get_tree_bdev+0x38/0x50 fs/super.c:1715 squashfs_get_tree+0x35/0x40 fs/squashfs/super.c:493 vfs_get_tree+0xb0/0x5c0 fs/super.c:1815 do_new_mount+0x733/0x1420 fs/namespace.c:3808 path_mount+0x6db/0x1e90 fs/namespace.c:4123 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount+0x6eb/0x7d0 fs/namespace.c:4324 __x64_sys_mount+0xe4/0x150 fs/namespace.c:4324 x64_sys_call+0x3604/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:166 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 1 UID: 0 PID: 13203 Comm: syz.7.1640 Tainted: G W syzkaller #0 PREEMPT(none) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 =====================================================