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 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: invalid bkey format: incorrect key_u64s: got 165, should be 3 u64s 165 fields 64:0, 64:0, 32:0, 0:0, 0:0, 0:0 bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0) bcachefs (loop0): flagging btree inodes 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=inodes level=0: btree_node_read_error, fixing bcachefs (loop0): error validating btree node on loop0 at btree dirents level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 267fcf747c875937 written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0 node offset 16/24 bset u64s 36: checksum error, type chacha20_poly1305_128: got 0a832ed5067fb62cca8557ffd366a220 should be 9c0f2415a667f93682c3af0cd44ed5f4, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at due to error btree=dirents level=0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 267fcf747c875937 written 24 min_key POS_MIN durability: 1 ptr: 0:41:0 gen 0 ================================================================== 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 ffffc9000d47e788 by task syz.0.0/5327 CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted 6.14.0-rc6-syzkaller-00180-g83158b21ae9a #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 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: 0033:0x7f17f818e90a 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:00007f17f8feee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f17f8feeef0 RCX: 00007f17f818e90a RDX: 000040000000f640 RSI: 0000400000000140 RDI: 00007f17f8feeeb0 RBP: 000040000000f640 R08: 00007f17f8feeef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000400000000140 R13: 00007f17f8feeeb0 R14: 000000000000f637 R15: 0000400000000180 The buggy address belongs to stack of task syz.0.0/5327 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 [ffffc9000d478000, ffffc9000d481000) 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:0xffff888000000002 pfn:0x34959 memcg:ffff88804019a002 flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) raw: 04fff00000000000 0000000000000000 dead000000000122 0000000000000000 raw: ffff888000000002 0000000000000000 00000001ffffffff ffff88804019a002 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 5325, tgid 5325 (syz.0.0), ts 67657491032, free_ts 67518997882 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 5304 tgid 5304 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 discard_slab mm/slub.c:2684 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3153 put_cpu_partial+0x17c/0x250 mm/slub.c:3228 __slab_free+0x290/0x380 mm/slub.c:4479 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 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_noprof+0x1d9/0x380 mm/slub.c:4171 getname_flags+0xb7/0x540 fs/namei.c:139 do_sys_openat2+0xd2/0x1d0 fs/open.c:1422 do_sys_open fs/open.c:1443 [inline] __do_sys_openat fs/open.c:1459 [inline] __se_sys_openat fs/open.c:1454 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1454 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 Memory state around the buggy address: ffffc9000d47e680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000d47e700: 00 00 f2 f2 f2 f2 f2 f2 f2 f2 00 00 00 00 f2 f2 >ffffc9000d47e780: f2 f2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffffc9000d47e800: 00 00 00 00 00 f3 f3 f3 f3 f3 f3 f3 f3 f3 f3 f3 ffffc9000d47e880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================