loop0: detected capacity change from 0 to 32768 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names invalid journal entry, version=1.7: mi_btree_bitmap type=btree_root in superblock: invalid btree root journal entry: wrong number of keys, fixing bcachefs (loop0): recovering from clean shutdown, journal seq 10 bcachefs (loop0): superblock requires following recovery passes to be run: recovery_pass_empty,accounting_read bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.20: directory_size running recovery passes: check_allocations,check_extents_to_backpointers,check_inodes bcachefs (loop0): error validating btree node on loop0 at btree extents level 0/0 u64s 11 type btree_ptr_v2 U64_MAX:U64_MAX:4278190080 len 0 ver 0: seq c6c25c03258c59c5 written 16 min_key POS_MIN durability: 1 ptr: 0:27:0 gen 0 node offset 0/16 bset u64s 0: incorrect max key SPOS_MAX bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0) bcachefs (loop0): flagging btree extents lost data bcachefs (loop0): running explicit recovery pass check_lrus (14), currently at recovery_pass_empty (0) bcachefs (loop0): running explicit recovery pass check_backpointers_to_extents (16), currently at recovery_pass_empty (0) bcachefs (loop0): running explicit recovery pass scan_for_btree_nodes (1), currently at recovery_pass_empty (0) error reading btree root btree=extents level=0: btree_node_read_error, fixing bcachefs (loop0): error validating btree node on loop0 at btree inodes level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 7589ab5e0c11cc7a written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0 node offset 8/24: btree node data missing: expected 24 sectors, found 8, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=inodes level=0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 7589ab5e0c11cc7a written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0 ================================================================== BUG: KASAN: slab-out-of-bounds in bch2_btree_node_read_done+0x1118/0x6180 fs/bcachefs/btree_io.c:1083 Read of size 8 at addr ffff8880454fc810 by task syz.0.0/5320 CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted 6.14.0-rc5-syzkaller-00025-gcfced12f5100 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0x16e/0x5b0 mm/kasan/report.c:521 kasan_report+0x143/0x180 mm/kasan/report.c:634 bch2_btree_node_read_done+0x1118/0x6180 fs/bcachefs/btree_io.c:1083 btree_node_read_work+0x6dc/0x1380 fs/bcachefs/btree_io.c:1358 bch2_btree_node_read+0x2433/0x29f0 __bch2_btree_root_read fs/bcachefs/btree_io.c:1789 [inline] bch2_btree_root_read+0x626/0x7b0 fs/bcachefs/btree_io.c:1811 read_btree_roots+0x3d3/0xa70 fs/bcachefs/recovery.c:581 bch2_fs_recovery+0x260f/0x3de0 fs/bcachefs/recovery.c:928 bch2_fs_start+0x37c/0x610 fs/bcachefs/super.c:1041 bch2_fs_get_tree+0xdb7/0x17a0 fs/bcachefs/fs.c:2203 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4ac3f8e90a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4ac4d5ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f4ac4d5aef0 RCX: 00007f4ac3f8e90a RDX: 0000400000000100 RSI: 0000400000000080 RDI: 00007f4ac4d5aeb0 RBP: 0000400000000100 R08: 00007f4ac4d5aef0 R09: 00000000022100c0 R10: 00000000022100c0 R11: 0000000000000246 R12: 0000400000000080 R13: 00007f4ac4d5aeb0 R14: 0000000000005aa0 R15: 00004000000001c0 Allocated by task 5320: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4115 [inline] slab_alloc_node mm/slub.c:4164 [inline] kmem_cache_alloc_lru_noprof+0x1dd/0x390 mm/slub.c:4183 xas_alloc lib/xarray.c:377 [inline] xas_create+0x10d0/0x1ae0 lib/xarray.c:684 xas_store+0x96/0x1870 lib/xarray.c:794 __xa_store+0x1e0/0x380 lib/xarray.c:1570 xa_store+0x34/0x50 lib/xarray.c:1601 create_bio_slab block/bio.c:102 [inline] bio_find_or_create_slab block/bio.c:127 [inline] bioset_init+0x48e/0x820 block/bio.c:1703 bch2_fs_fs_io_direct_init+0x67/0x90 fs/bcachefs/fs-io-direct.c:687 bch2_fs_alloc fs/bcachefs/super.c:935 [inline] bch2_fs_open+0x2fe2/0x31e0 fs/bcachefs/super.c:2064 bch2_fs_get_tree+0x738/0x17a0 fs/bcachefs/fs.c:2190 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff8880454fc580 which belongs to the cache radix_tree_node of size 576 The buggy address is located 80 bytes to the right of allocated 576-byte region [ffff8880454fc580, ffff8880454fc7c0) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x454fc head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 04fff00000000040 ffff88801b04fdc0 dead000000000122 0000000000000000 raw: 0000000000000000 00000000800b000b 00000000f5000000 0000000000000000 head: 04fff00000000040 ffff88801b04fdc0 dead000000000122 0000000000000000 head: 0000000000000000 00000000800b000b 00000000f5000000 0000000000000000 head: 04fff00000000001 ffffea0001153f01 ffffffffffffffff 0000000000000000 head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Reclaimable, gfp_mask 0x52810(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_RECLAIMABLE), pid 5320, tgid 5319 (syz.0.0), ts 83885844459, free_ts 0 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551 prep_new_page mm/page_alloc.c:1559 [inline] get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4739 alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270 alloc_slab_page mm/slub.c:2423 [inline] allocate_slab+0x8f/0x3a0 mm/slub.c:2587 new_slab mm/slub.c:2640 [inline] ___slab_alloc+0xc27/0x14a0 mm/slub.c:3826 __slab_alloc+0x58/0xa0 mm/slub.c:3916 __slab_alloc_node mm/slub.c:3991 [inline] slab_alloc_node mm/slub.c:4152 [inline] kmem_cache_alloc_lru_noprof+0x26c/0x390 mm/slub.c:4183 xas_alloc lib/xarray.c:377 [inline] xas_create+0x10d0/0x1ae0 lib/xarray.c:684 xas_store+0x96/0x1870 lib/xarray.c:794 __xa_store+0x1e0/0x380 lib/xarray.c:1570 xa_store+0x34/0x50 lib/xarray.c:1601 create_bio_slab block/bio.c:102 [inline] bio_find_or_create_slab block/bio.c:127 [inline] bioset_init+0x48e/0x820 block/bio.c:1703 bch2_fs_fs_io_direct_init+0x29/0x90 fs/bcachefs/fs-io-direct.c:682 bch2_fs_alloc fs/bcachefs/super.c:935 [inline] bch2_fs_open+0x2fe2/0x31e0 fs/bcachefs/super.c:2064 bch2_fs_get_tree+0x738/0x17a0 fs/bcachefs/fs.c:2190 page_owner free stack trace missing Memory state around the buggy address: ffff8880454fc700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880454fc780: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc >ffff8880454fc800: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 ^ ffff8880454fc880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880454fc900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================