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 invalid bkey in superblock btree=inodes level=1: u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 2a20405ac3f40602 written 24 min_key 1536:0:0 durability: 0 (invalid extent entry 0000000000026000) invalid extent entry type (got 13, max 6): deleting 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 1.20: directory_size running recovery passes: check_allocations,check_extents_to_backpointers,check_snapshots,check_subvols,check_inodes,check_dirents,set_fs_needs_rebalance invalid btree id 255 (max 63), 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 94c7ac5e88d2caaeaccadc9b17a72fd4 should be 9c0f2415a667f93682c3af0cd44ed5f4, fixing bcachefs (loop0): error validating btree node 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 bset byte offset 80: keys out of order: u64s 7 type dirent 7657808216390111232:3784119180373593407:U32_MAX len 0 ver 0 > u64s 7 type dirent 4096:5682031293254759865:U32_MAX len 0 ver 0, 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 ffffc9000d53e7c8 by task syz.0.0/5319 CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.14.0-rc1-syzkaller-00081-gbb066fe812d6 #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: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:581 bch2_fs_recovery+0x260f/0x3de0 fs/bcachefs/recovery.c:928 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: 0033:0x7fb07418e58a 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:00007fb07507be68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fb07507bef0 RCX: 00007fb07418e58a RDX: 000020000000f640 RSI: 0000200000000140 RDI: 00007fb07507beb0 RBP: 000020000000f640 R08: 00007fb07507bef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000140 R13: 00007fb07507beb0 R14: 000000000000f62f R15: 00002000000000c0 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.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 [ffffc9000d538000, ffffc9000d541000) created by: copy_process+0x5d1/0x3d50 kernel/fork.c:2233 The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880424992e8 pfn:0x42499 memcg:ffff88803f47dd82 flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) raw: 04fff00000000000 0000000000000000 dead000000000122 0000000000000000 raw: ffff8880424992e8 0000000000000000 00000001ffffffff ffff88803f47dd82 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 57672211682, free_ts 57540026283 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:4739 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+0x5d1/0x3d50 kernel/fork.c:2233 kernel_clone+0x226/0x8e0 kernel/fork.c:2815 __do_sys_clone3 kernel/fork.c:3119 [inline] __se_sys_clone3+0x2d8/0x360 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 5300 tgid 5300 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 __slab_free+0x2c2/0x380 mm/slub.c:4520 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] __kmalloc_cache_noprof+0x1d9/0x390 mm/slub.c:4320 kmalloc_noprof include/linux/slab.h:901 [inline] kzalloc_noprof include/linux/slab.h:1037 [inline] ____ip_mc_inc_group+0x5ac/0xe90 net/ipv4/igmp.c:1529 __ip_mc_inc_group net/ipv4/igmp.c:1567 [inline] ip_mc_inc_group net/ipv4/igmp.c:1573 [inline] ip_mc_up+0x124/0x300 net/ipv4/igmp.c:1874 inetdev_event+0xfa4/0x1550 net/ipv4/devinet.c:1638 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85 __dev_notify_flags+0x207/0x400 dev_change_flags+0xf0/0x1a0 net/core/dev.c:9249 do_setlink+0xc90/0x4210 net/core/rtnetlink.c:3118 rtnl_changelink net/core/rtnetlink.c:3732 [inline] __rtnl_newlink net/core/rtnetlink.c:3884 [inline] rtnl_newlink+0x1bb6/0x2210 net/core/rtnetlink.c:4021 rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6911 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543 Memory state around the buggy address: ffffc9000d53e680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000d53e700: 00 00 00 00 00 00 00 00 00 00 f2 f2 f2 f2 f2 f2 >ffffc9000d53e780: f2 f2 00 00 00 00 f2 f2 f2 f2 00 00 00 00 00 00 ^ ffffc9000d53e800: 00 00 00 00 00 00 00 00 00 00 00 00 00 f3 f3 f3 ffffc9000d53e880: f3 f3 f3 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 ==================================================================