loop0: detected capacity change from 0 to 32768
bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names
bcachefs (loop0): recovering from clean shutdown, journal seq 13
bcachefs (loop0): Version upgrade required:
Version upgrade from 0.19: freespace to 1.7: mi_btree_bitmap incomplete
Doing incompatible version upgrade from 0.19: freespace to 1.20: directory_size
  running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
==================================================================
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 ffffc900019c67c8 by task syz.0.0/5330

CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-04858-g21266b8df522 #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:378 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:489
 kasan_report+0x143/0x180 mm/kasan/report.c:602
 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+0x1d3b/0x5f70 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+0x617/0x7a0 fs/bcachefs/btree_io.c:1811
 read_btree_roots+0x3d3/0xa70 fs/bcachefs/recovery.c:582
 bch2_fs_recovery+0x260f/0x3de0 fs/bcachefs/recovery.c:929
 bch2_fs_start+0x37c/0x610 fs/bcachefs/super.c:1030
 bch2_fs_get_tree+0xd8d/0x1740 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: 0033:0x7fb74e98e4ca
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:00007fb74f7cee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb74f7ceef0 RCX: 00007fb74e98e4ca
RDX: 000000002000f640 RSI: 000000002000f680 RDI: 00007fb74f7ceeb0
RBP: 000000002000f640 R08: 00007fb74f7ceef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000002000f680
R13: 00007fb74f7ceeb0 R14: 000000000000f62a R15: 000000002000f6c0
 </TASK>

The buggy address belongs to stack of task syz.0.0/5330
 and is located at offset 1768 in frame:
 do_encrypt+0x0/0xd70

This frame has 8 objects:
 [32, 48) 'nonce.i242'
 [64, 528) '__req_desc.i243'
 [592, 608) 'nonce.i224'
 [624, 1088) '__req_desc.i225'
 [1152, 1168) 'nonce.i'
 [1184, 1648) '__req_desc.i'
 [1712, 1744) 'sg'
 [1776, 1928) 'sgl'

The buggy address belongs to the virtual mapping at
 [ffffc900019c0000, ffffc900019c9000) created by:
 copy_process+0x5d1/0x3d50 kernel/fork.c:2221

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x52da1
memcg:ffff888043110d82
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff ffff888043110d82
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 5327, tgid 5327 (syz.0.0), ts 66792486108, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x3e1/0x780 mm/mempolicy.c:2269
 vm_area_alloc_pages mm/vmalloc.c:3591 [inline]
 __vmalloc_area_node mm/vmalloc.c:3669 [inline]
 __vmalloc_node_range_noprof+0x9c9/0x1380 mm/vmalloc.c:3846
 alloc_thread_stack_node kernel/fork.c:314 [inline]
 dup_task_struct+0x444/0x8c0 kernel/fork.c:1116
 copy_process+0x5d1/0x3d50 kernel/fork.c:2221
 kernel_clone+0x226/0x8e0 kernel/fork.c:2803
 __do_sys_clone3 kernel/fork.c:3107 [inline]
 __se_sys_clone3+0x2d8/0x360 kernel/fork.c:3086
 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_owner free stack trace missing

Memory state around the buggy address:
 ffffc900019c6680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc900019c6700: 00 00 00 00 00 00 00 00 00 00 f2 f2 f2 f2 f2 f2
>ffffc900019c6780: f2 f2 00 00 00 00 f2 f2 f2 f2 00 00 00 00 00 00
                                              ^
 ffffc900019c6800: 00 00 00 00 00 00 00 00 00 00 00 00 00 f3 f3 f3
 ffffc900019c6880: f3 f3 f3 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00
==================================================================