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,str_hash=crc64,grpquota,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 1.13: inode_has_child_snapshots running recovery passes: check_allocations,check_snapshots,check_subvols,check_inodes,check_dirents,set_fs_needs_rebalance 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 8/24 bset u64s 29: checksum error, type chacha20_poly1305_128: got f8456eb9a83e831f81f0fce6813a84d4 should be ef30dab84eb82d57729a51b00f54184b, fixing bcachefs (loop0): error validating btree node 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 8/24 bset u64s 29 bset byte offset 40: key extends past end of bset, 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 16/24 bset u64s 110: checksum error, type chacha20_poly1305_128: got 74465b01ef961ba16cfc11c13d095ba8 should be d1e256903dc89dd6436b0db8b45d2093, fixing bcachefs (loop0): btree_node_read_work: rewriting btree node at btree=inodes level=0 SPOS_MAX due to error ================================================================== 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:157 Read of size 8 at addr ffffc9000d506908 by task syz.0.0/5319 CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.13.0-rc6-syzkaller-00231-g77a903cd8e5a #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: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:157 bset_encrypt fs/bcachefs/btree_io.h:118 [inline] bch2_btree_node_read_done+0x1dfc/0x5e90 fs/bcachefs/btree_io.c:1070 btree_node_read_work+0x68b/0x1260 fs/bcachefs/btree_io.c:1323 bch2_btree_node_read+0x2433/0x29f0 __bch2_btree_root_read fs/bcachefs/btree_io.c:1749 [inline] bch2_btree_root_read+0x617/0x7a0 fs/bcachefs/btree_io.c:1771 read_btree_roots+0x296/0x840 fs/bcachefs/recovery.c:523 bch2_fs_recovery+0x2585/0x39d0 fs/bcachefs/recovery.c:853 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1037 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2170 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3511 do_mount fs/namespace.c:3851 [inline] __do_sys_mount fs/namespace.c:4061 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4038 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: 0033:0x7f28e21874ca 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:00007f28e2ff5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f28e2ff5ef0 RCX: 00007f28e21874ca RDX: 000000002000f640 RSI: 0000000020000140 RDI: 00007f28e2ff5eb0 RBP: 000000002000f640 R08: 00007f28e2ff5ef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000140 R13: 00007f28e2ff5eb0 R14: 000000000000f628 R15: 00000000200000c0 The buggy address belongs to stack of task syz.0.0/5319 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 [ffffc9000d500000, ffffc9000d509000) created by: copy_process+0x5d1/0x3d50 kernel/fork.c:2224 The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888042ea4e88 pfn:0x42ea4 memcg:ffff88804349f502 flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) raw: 04fff00000000000 0000000000000000 dead000000000122 0000000000000000 raw: ffff888042ea4e88 0000000000000000 00000001ffffffff ffff88804349f502 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 5317, tgid 5317 (syz.0.0), ts 56772335028, free_ts 56705617121 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+0x3e8/0x680 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:2224 kernel_clone+0x226/0x8e0 kernel/fork.c:2806 __do_sys_clone3 kernel/fork.c:3110 [inline] __se_sys_clone3+0x2d8/0x360 kernel/fork.c:3089 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_unref_page+0xd3f/0x1010 mm/page_alloc.c:2659 discard_slab mm/slub.c:2688 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3157 put_cpu_partial+0x17c/0x250 mm/slub.c:3232 __slab_free+0x290/0x380 mm/slub.c:4483 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:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] kmem_cache_alloc_node_noprof+0x1d9/0x380 mm/slub.c:4220 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 netlink_sendmsg+0x638/0xcb0 net/netlink/af_netlink.c:1866 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 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: ffffc9000d506800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000d506880: 00 00 f2 f2 f2 f2 f2 f2 f2 f2 00 00 00 00 f2 f2 >ffffc9000d506900: f2 f2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffffc9000d506980: 00 00 00 00 00 f3 f3 f3 f3 f3 f3 f3 f3 f3 f3 f3 ffffc9000d506a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 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