F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock ------------[ cut here ]------------ kernel BUG at mm/slub.c:5893! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 31998 Comm: syz-executor.1 Not tainted 6.0.0-rc4-syzkaller-17255-ga6b443748715 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : create_unique_id mm/slub.c:5973 [inline] pc : sysfs_slab_add+0x258/0x260 mm/slub.c:5950 lr : kmalloc include/linux/slab.h:600 [inline] lr : create_unique_id mm/slub.c:5890 [inline] lr : sysfs_slab_add+0xa0/0x260 mm/slub.c:5950 sp : ffff80001ff83990 x29: ffff80001ff83990 x28: ffff000104ceb280 x27: ffff0000c70b9b00 x26: 0000000000020000 x25: ffff80000eea7000 x24: ffff80000eeb6000 x23: 0000000000000000 x22: ffff0000c2355000 x21: 0000000000000008 x20: ffff0000c70b9b00 x19: ffff0000c70b9b00 x18: 0000000000000000 x17: 0000000000000000 x16: ffff80000db78658 x15: ffff000100193500 x14: 0000000000000010 x13: 0000000000000000 x12: 0000000000040000 x11: 000000000003ffff x10: ffff800018be0000 x9 : fab1118de581d300 x8 : fab1118de581d300 x7 : ffff8000084b2d80 x6 : 0000000000000000 x5 : 0000000000000cc0 x4 : 0000000000000080 x3 : 0000000000000040 x2 : ffff0000c0001200 x1 : ffff80000cb512b9 x0 : 0000000000000000 Call trace: sysfs_slab_add+0x258/0x260 mm/slub.c:5973 __kmem_cache_create+0x60/0x118 mm/slub.c:4899 create_cache mm/slab_common.c:229 [inline] kmem_cache_create_usercopy+0x19c/0x31c mm/slab_common.c:335 kmem_cache_create+0x1c/0x28 mm/slab_common.c:390 f2fs_kmem_cache_create fs/f2fs/f2fs.h:2766 [inline] f2fs_init_xattr_caches+0x78/0xb4 fs/f2fs/xattr.c:808 f2fs_fill_super+0x1050/0x1e7c fs/f2fs/super.c:4149 mount_bdev+0x1b8/0x210 fs/super.c:1400 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4512 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1530 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x914 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x2f8/0x408 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:624 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x18c/0x190 Code: a9415ff8 a8c47bfd d50323bf d65f03c0 (d4210000) ---[ end trace 0000000000000000 ]---