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,background_compression=zstd,grpquota,no_splitbrain_check,nojournal_transaction_names,no_data_io
bcachefs (loop0): recovering from clean shutdown, journal seq 13
bcachefs (loop0): Version upgrade from 1.3: rebalance_work to 1.7: mi_btree_bitmap incomplete
Doing compatible version upgrade from 1.3: rebalance_work to 1.20: directory_size
  running recovery passes: check_allocations,check_extents_to_backpointers,check_subvols,check_inodes,check_dirents
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 0/24 bset u64s 0: checksum error, type chacha20_poly1305_128: got acf4736fc263de724267fdf1ddd423ff should be 86b6d06687008ae27463fcb251774b21, fixing
==================================================================
BUG: KASAN: stack-out-of-bounds in sg_mark_end include/linux/scatterlist.h:258 [inline]
BUG: KASAN: stack-out-of-bounds in do_encrypt+0xa22/0xd70 fs/bcachefs/checksum.c:158
Read of size 8 at addr ffffc9000d226788 by task syz.0.0/5321

CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted 6.14.0-rc7-syzkaller-00067-g76b6905c11fd #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:
 <TASK>
 __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
 sg_mark_end include/linux/scatterlist.h:258 [inline]
 do_encrypt+0xa22/0xd70 fs/bcachefs/checksum.c:158
 bset_encrypt fs/bcachefs/btree_io.h:118 [inline]
 bch2_btree_node_read_done+0x1e89/0x6270 fs/bcachefs/btree_io.c:1114
 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: 0033:0x7f4927d8e90a
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:00007f4928b52e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4928b52ef0 RCX: 00007f4927d8e90a
RDX: 000040000000f640 RSI: 0000400000000140 RDI: 00007f4928b52eb0
RBP: 000040000000f640 R08: 00007f4928b52ef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000400000000140
R13: 00007f4928b52eb0 R14: 000000000000f637 R15: 0000400000000180
 </TASK>

The buggy address belongs to stack of task syz.0.0/5321
 and is located at offset 1768 in frame:
 do_encrypt+0x0/0xd70

This frame has 8 objects:
 [32, 48) 'nonce.i272'
 [64, 528) '__req_desc.i273'
 [592, 608) 'nonce.i254'
 [624, 1088) '__req_desc.i255'
 [1152, 1168) 'nonce.i'
 [1184, 1648) '__req_desc.i'
 [1712, 1744) 'sg'
 [1776, 1928) 'sgl'

The buggy address belongs to the virtual mapping at
 [ffffc9000d220000, ffffc9000d229000) created by:
 copy_process+0x5d1/0x3cf0 kernel/fork.c:2233

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x45e8b
memcg:ffff8880405a6902
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff8880405a6902
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 5319, tgid 5319 (syz.0.0), ts 66480551390, free_ts 66441448286
 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:4740
 alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270
 alloc_frozen_pages_noprof mm/mempolicy.c:2341 [inline]
 alloc_pages_noprof+0x121/0x190 mm/mempolicy.c:2361
 vm_area_alloc_pages mm/vmalloc.c:3591 [inline]
 __vmalloc_area_node mm/vmalloc.c:3669 [inline]
 __vmalloc_node_range_noprof+0x9c6/0x1380 mm/vmalloc.c:3846
 alloc_thread_stack_node kernel/fork.c:314 [inline]
 dup_task_struct+0x444/0x8c0 kernel/fork.c:1127
 copy_process+0x5d1/0x3cf0 kernel/fork.c:2233
 kernel_clone+0x226/0x8e0 kernel/fork.c:2815
 __do_sys_clone3 kernel/fork.c:3119 [inline]
 __se_sys_clone3+0x2ee/0x380 kernel/fork.c:3098
 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
page last free pid 5303 tgid 5303 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
 stack_depot_save_flags+0x7c6/0x940 lib/stackdepot.c:674
 kasan_save_stack mm/kasan/common.c:48 [inline]
 kasan_save_track+0x51/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4294 [inline]
 __kmalloc_node_noprof+0x290/0x4d0 mm/slub.c:4300
 __kvmalloc_node_noprof+0x72/0x190 mm/util.c:665
 xt_alloc_table_info+0x3d/0xa0 net/netfilter/x_tables.c:1193
 ip6t_register_table+0xbc/0x740 net/ipv6/netfilter/ip6_tables.c:1744
 ip6table_nat_table_init+0x43/0x2d0 net/ipv6/netfilter/ip6table_nat.c:116
 xt_find_table_lock+0x322/0x400 net/netfilter/x_tables.c:1260
 xt_request_find_table_lock+0x26/0x100 net/netfilter/x_tables.c:1285
 get_info net/ipv6/netfilter/ip6_tables.c:979 [inline]
 do_ip6t_get_ctl+0x891/0x18b0 net/ipv6/netfilter/ip6_tables.c:1668
 nf_getsockopt+0x299/0x2c0 net/netfilter/nf_sockopt.c:116
 ipv6_getsockopt+0x23e/0x360 net/ipv6/ipv6_sockglue.c:1493
 tcp_getsockopt+0x163/0x1c0 net/ipv4/tcp.c:4684
 do_sock_getsockopt+0x38e/0x740 net/socket.c:2364

Memory state around the buggy address:
 ffffc9000d226680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc9000d226700: 00 00 f2 f2 f2 f2 f2 f2 f2 f2 00 00 00 00 f2 f2
>ffffc9000d226780: f2 f2 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                      ^
 ffffc9000d226800: 00 00 00 00 00 f3 f3 f3 f3 f3 f3 f3 f3 f3 f3 f3
 ffffc9000d226880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================