Version upgrade from 0.32: (unknown version) to 1.7: mi_btree_bitmap incomplete Doing incompatible version upgrade from 0.32: (unknown version) to 1.25: extent_flags 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 alloc level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 1818ce08861e3527 written 40 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0 node offset 8/40 bset u64s 375: checksum error, type chacha20_poly1305_128: got d19a558168b309fe0884eb7099880e5f should be 61ec379a8789477e76ff1a5280fd6dbd, fixing invalid bkey in btree_node btree=alloc level=0: u64s 11 type alloc_v4 0:15:64000 len 0 ver 0: gen 0 oldest_gen 0 data_type journal journal_seq_nonempty 1 journal_seq_empty 0 need_discard 1 need_inc_gen 1 dirty_sectors 256 stripe_sectors 0 cached_sectors 0 stripe 0 stripe_redundancy 0 io_time[READ] 1 io_time[WRITE] 1 fragmentation 0 bp_start 8 nonzero snapshot: delete?, fixing bcachefs (loop0): flagging btree alloc lost data bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0) 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 check_alloc_info (13), currently at recovery_pass_empty (0) error reading btree root btree=alloc level=0: btree_node_read_error, fixing 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): flagging btree snapshots lost data 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 ================================================================== BUG: KASAN: use-after-free in crypto_poly1305_update+0x28/0x40 arch/x86/crypto/poly1305_glue.c:230 Read of size 8 at addr ffff88805339c860 by task syz.0.0/5332 CPU: 0 UID: 0 PID: 5332 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-07422-gacb4f33713b9 #0 PREEMPT(full) 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 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x28f/0x2a0 mm/kasan/generic.c:189 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105 crypto_poly1305_update+0x28/0x40 arch/x86/crypto/poly1305_glue.c:230 bch2_checksum+0x5fc/0x780 fs/bcachefs/checksum.c:239 bch2_btree_node_read_done+0x1462/0x62d0 fs/bcachefs/btree_io.c:1131 btree_node_read_work+0x6cb/0x1400 fs/bcachefs/btree_io.c:1365 bch2_btree_node_read+0x2427/0x29e0 fs/bcachefs/btree_io.c:-1 __bch2_btree_root_read fs/bcachefs/btree_io.c:1795 [inline] bch2_btree_root_read+0x656/0x7e0 fs/bcachefs/btree_io.c:1817 read_btree_roots+0x3d7/0xa80 fs/bcachefs/recovery.c:581 bch2_fs_recovery+0x28e4/0x3e20 fs/bcachefs/recovery.c:928 bch2_fs_start+0x37c/0x620 fs/bcachefs/super.c:1057 bch2_fs_get_tree+0x1270/0x18d0 fs/bcachefs/fs.c:2253 vfs_get_tree+0x90/0x2b0 fs/super.c:1759 do_new_mount+0x2cf/0xb70 fs/namespace.c:3878 do_mount fs/namespace.c:4218 [inline] __do_sys_mount fs/namespace.c:4429 [inline] __se_sys_mount+0x38c/0x400 fs/namespace.c:4406 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2f6798e90a 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:00007f2f68736e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f2f68736ef0 RCX: 00007f2f6798e90a RDX: 000020000000f640 RSI: 0000200000000140 RDI: 00007f2f68736eb0 RBP: 000020000000f640 R08: 00007f2f68736ef0 R09: 0000000000804008 R10: 0000000000804008 R11: 0000000000000246 R12: 0000200000000140 R13: 00007f2f68736eb0 R14: 000000000000f61b R15: 00002000000000c0 The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5339c flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) raw: 04fff00000000000 0000000000000000 ffffea00014ce708 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 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_RECLAIMABLE|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5332, tgid 5331 (syz.0.0), ts 113071372183, free_ts 113199647477 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+0x3695/0x37e0 mm/page_alloc.c:3477 __alloc_frozen_pages_noprof+0x2c5/0x7b0 mm/page_alloc.c:4740 __alloc_pages_noprof+0xa/0x30 mm/page_alloc.c:4774 __alloc_pages_node_noprof include/linux/gfp.h:265 [inline] alloc_pages_node_noprof include/linux/gfp.h:292 [inline] ___kmalloc_large_node+0x92/0x210 mm/slub.c:4262 __kmalloc_large_node_noprof+0x1a/0x80 mm/slub.c:4290 __do_kmalloc_node mm/slub.c:4306 [inline] __kvmalloc_node_noprof+0x7c/0x5a0 mm/slub.c:5003 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:656 bch2_fs_alloc fs/bcachefs/super.c:935 [inline] bch2_fs_open+0x2de2/0x32a0 fs/bcachefs/super.c:2182 bch2_fs_get_tree+0x77b/0x18d0 fs/bcachefs/fs.c:2172 vfs_get_tree+0x90/0x2b0 fs/super.c:1759 do_new_mount+0x2cf/0xb70 fs/namespace.c:3878 do_mount fs/namespace.c:4218 [inline] __do_sys_mount fs/namespace.c:4429 [inline] __se_sys_mount+0x38c/0x400 fs/namespace.c:4406 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 page last free pid 5332 tgid 5331 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] __free_pages_ok+0xbc8/0xe40 mm/page_alloc.c:1271 __folio_put+0x2b5/0x360 mm/swap.c:112 folio_put include/linux/mm.h:1477 [inline] free_large_kmalloc+0x143/0x1e0 mm/slub.c:4758 kfree+0x216/0x430 mm/slub.c:4826 btree_bounce_free fs/bcachefs/btree_io.c:112 [inline] bch2_btree_node_read_done+0x3dd1/0x62d0 fs/bcachefs/btree_io.c:1244 btree_node_read_work+0x6cb/0x1400 fs/bcachefs/btree_io.c:1365 bch2_btree_node_read+0x2427/0x29e0 fs/bcachefs/btree_io.c:-1 __bch2_btree_root_read fs/bcachefs/btree_io.c:1795 [inline] bch2_btree_root_read+0x656/0x7e0 fs/bcachefs/btree_io.c:1817 read_btree_roots+0x3d7/0xa80 fs/bcachefs/recovery.c:581 bch2_fs_recovery+0x28e4/0x3e20 fs/bcachefs/recovery.c:928 bch2_fs_start+0x37c/0x620 fs/bcachefs/super.c:1057 bch2_fs_get_tree+0x1270/0x18d0 fs/bcachefs/fs.c:2253 vfs_get_tree+0x90/0x2b0 fs/super.c:1759 do_new_mount+0x2cf/0xb70 fs/namespace.c:3878 do_mount fs/namespace.c:4218 [inline] __do_sys_mount fs/namespace.c:4429 [inline] __se_sys_mount+0x38c/0x400 fs/namespace.c:4406 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 Memory state around the buggy address: ffff88805339c700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88805339c780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88805339c800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88805339c880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88805339c900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================