loop0: detected capacity change from 0 to 32768 bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,str_hash=crc32c,noinodes_use_key_cache,grpquota,journal_flush_delay=1002,journal_flush_disabled,nojournal_transaction_names,no_data_io bcachefs (loop0): recovering from clean shutdown, journal seq 13 bcachefs (loop0): Version upgrade required: Version upgrade from 0.32: (unknown version) to 1.7: mi_btree_bitmap incomplete Doing incompatible version upgrade from 0.32: (unknown version) to 1.20: directory_size running recovery passes: check_allocations,check_extents_to_backpointers,check_snapshots,check_subvols,check_inodes,check_dirents,set_fs_needs_rebalance bcachefs (loop0): error validating btree node on loop0 at btree extents level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 4e0410879b0c2f04 written 16 min_key POS_MIN durability: 1 ptr: 0:27:0 gen 0 node offset 8/16 bset u64s 51: checksum error, type chacha20_poly1305_128: got 95c80276087639787e219ff5c6fd4fe3 should be 37f1d6087d67d21bebd469bc807a31f8, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=extents level=0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 4e0410879b0c2f04 written 16 min_key POS_MIN durability: 1 ptr: 0:27:0 gen 0 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 2a20405ac3f40602 written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0 node offset 16/24 bset u64s 110: checksum error, type chacha20_poly1305_128: got 49aef0f54140966992bc78dad00c66b7 should be d1e256903dc89dd6436b0db8b45d2093, fixing invalid bkey in btree_node btree=inodes level=0: u64s 18 type inode_v3 0:4098:U32_MAX len 0 ver 0: (unpack error) invalid variable length fields: delete?, 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 2a20405ac3f40602 written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0 bcachefs (loop0): error validating btree node on loop0 at btree snapshots level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq d771a06d670df06c written 16 min_key POS_MIN durability: 1 ptr: 0:32:0 gen 0 node offset 0/16: got wrong btree node: got btree=(unknown btree 275047) level=5 seq d771a06d67fffe6c 1803930855 min: 2933411745346304186:16433293857303113771:725523118 max: 3723324695486097422:6673056239607825226:360012141 bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0) bcachefs (loop0): flagging btree snapshots 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=snapshots level=0: btree_node_read_error, fixing bcachefs (loop0): error validating btree node on loop0 at btree freespace level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq b6c44d07df4e9bb7 written 48 min_key POS_MIN durability: 1 ptr: 0:29:0 gen 0 node offset 16/48 bset u64s 65293: checksum error, type chacha20_poly1305_128: got d99acbb51ff8f54d07f2afde98ae29e1 should be b35a96366a1c7a8864f97b48c7916605, fixing ================================================================== BUG: KASAN: use-after-free in memcpy_dir crypto/scatterwalk.c:23 [inline] BUG: KASAN: use-after-free in scatterwalk_copychunks+0x1cc/0x460 crypto/scatterwalk.c:38 Read of size 40 at addr ffff888054da0000 by task syz.0.0/5326 CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted 6.14.0-rc4-syzkaller #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 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105 memcpy_dir crypto/scatterwalk.c:23 [inline] scatterwalk_copychunks+0x1cc/0x460 crypto/scatterwalk.c:38 skcipher_next_slow+0x164/0x230 crypto/skcipher.c:194 chacha_simd_stream_xor+0x678/0xc10 arch/x86/crypto/chacha_glue.c:192 do_encrypt_sg fs/bcachefs/checksum.c:109 [inline] do_encrypt+0x992/0xd70 fs/bcachefs/checksum.c:125 bset_encrypt fs/bcachefs/btree_io.h:118 [inline] bch2_btree_node_read_done+0x19c0/0x6180 fs/bcachefs/btree_io.c:1144 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: 0033:0x7f26e018e90a 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:00007f26e0f44e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f26e0f44ef0 RCX: 00007f26e018e90a RDX: 000040000000f640 RSI: 0000400000000140 RDI: 00007f26e0f44eb0 RBP: 000040000000f640 R08: 00007f26e0f44ef0 R09: 0000000000804008 R10: 0000000000804008 R11: 0000000000000246 R12: 0000400000000140 R13: 00007f26e0f44eb0 R14: 000000000000f622 R15: 0000400000000240 The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x54da0 flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) page_type: f0(buddy) raw: 04fff00000000000 ffff88805ffd7028 ffff88805ffd7028 0000000000000000 raw: 0000000000000000 0000000000000005 00000000f0000000 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 5, migratetype Reclaimable, gfp_mask 0x452cd0(GFP_KERNEL_ACCOUNT|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_RECLAIMABLE), pid 5326, tgid 5325 (syz.0.0), ts 79709781860, free_ts 79949145334 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_noprof+0xa/0x30 mm/page_alloc.c:4773 __alloc_pages_node_noprof include/linux/gfp.h:265 [inline] alloc_pages_node_noprof include/linux/gfp.h:292 [inline] ___kmalloc_large_node+0x8b/0x1d0 mm/slub.c:4239 __kmalloc_large_node_noprof+0x1a/0x80 mm/slub.c:4266 __do_kmalloc_node mm/slub.c:4282 [inline] __kmalloc_node_noprof+0x33a/0x4d0 mm/slub.c:4300 __kvmalloc_node_noprof+0x72/0x190 mm/util.c:662 btree_node_data_alloc+0xdb/0x260 fs/bcachefs/btree_cache.c:156 __bch2_btree_node_mem_alloc+0x201/0x420 fs/bcachefs/btree_cache.c:201 bch2_fs_btree_cache_init+0x27a/0x630 fs/bcachefs/btree_cache.c:655 bch2_fs_alloc fs/bcachefs/super.c:919 [inline] bch2_fs_open+0x2d2d/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 page last free pid 5326 tgid 5325 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] __free_pages_ok+0xbbf/0xe40 mm/page_alloc.c:1271 __folio_put+0x2b3/0x360 mm/swap.c:112 folio_put include/linux/mm.h:1489 [inline] free_large_kmalloc+0xfe/0x180 mm/slub.c:4728 kfree+0x212/0x430 mm/slub.c:4751 btree_bounce_free fs/bcachefs/btree_io.c:111 [inline] bch2_btree_node_read_done+0x3c89/0x6180 fs/bcachefs/btree_io.c:1243 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 Memory state around the buggy address: ffff888054d9ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888054d9ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888054da0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff888054da0080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888054da0100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================