================================================================== BUG: KASAN: slab-out-of-bounds in memcpy_from_page include/linux/highmem.h:417 [inline] BUG: KASAN: slab-out-of-bounds in hfs_bnode_read fs/hfs/bnode.c:35 [inline] BUG: KASAN: slab-out-of-bounds in hfs_bnode_read_key+0x314/0x440 fs/hfs/bnode.c:70 Write of size 256 at addr ffff88807e674180 by task syz-executor.1/27372 CPU: 1 PID: 27372 Comm: syz-executor.1 Not tainted 6.4.0-rc4-syzkaller-00276-ge5282a7d8f6b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:351 [inline] print_report+0x163/0x540 mm/kasan/report.c:462 kasan_report+0x176/0x1b0 mm/kasan/report.c:572 kasan_check_range+0x283/0x290 mm/kasan/generic.c:187 __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106 memcpy_from_page include/linux/highmem.h:417 [inline] hfs_bnode_read fs/hfs/bnode.c:35 [inline] hfs_bnode_read_key+0x314/0x440 fs/hfs/bnode.c:70 hfs_brec_insert+0x6a1/0xbd0 fs/hfs/brec.c:141 hfs_cat_create+0x5df/0xa70 fs/hfs/catalog.c:131 hfs_create+0x66/0xd0 fs/hfs/dir.c:202 lookup_open fs/namei.c:3492 [inline] open_last_lookups fs/namei.c:3560 [inline] path_openat+0x13df/0x3170 fs/namei.c:3788 do_filp_open+0x234/0x490 fs/namei.c:3818 do_sys_openat2+0x13f/0x500 fs/open.c:1356 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x247/0x290 fs/open.c:1383 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fee5768c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fee584cf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fee577abf80 RCX: 00007fee5768c169 RDX: 0000000000141842 RSI: 0000000020000380 RDI: ffffffffffffff9c RBP: 00007fee576e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc91a010f R14: 00007fee584cf300 R15: 0000000000022000 Allocated by task 27372: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:196 [inline] __do_kmalloc_node mm/slab_common.c:966 [inline] __kmalloc+0xb9/0x230 mm/slab_common.c:979 kmalloc include/linux/slab.h:563 [inline] hfs_find_init+0x90/0x1f0 fs/hfs/bfind.c:21 hfs_cat_create+0x182/0xa70 fs/hfs/catalog.c:96 hfs_create+0x66/0xd0 fs/hfs/dir.c:202 lookup_open fs/namei.c:3492 [inline] open_last_lookups fs/namei.c:3560 [inline] path_openat+0x13df/0x3170 fs/namei.c:3788 do_filp_open+0x234/0x490 fs/namei.c:3818 do_sys_openat2+0x13f/0x500 fs/open.c:1356 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x247/0x290 fs/open.c:1383 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:491 kvfree_call_rcu+0x109/0x8d0 kernel/rcu/tree.c:3332 cfg80211_update_known_bss+0x166/0x9e0 cfg80211_bss_update+0x171/0x20d0 net/wireless/scan.c:1732 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2482 [inline] cfg80211_inform_bss_frame_data+0xc5b/0x22c0 net/wireless/scan.c:2515 ieee80211_bss_info_update+0x801/0xf00 net/mac80211/scan.c:190 ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline] ieee80211_ibss_rx_queued_mgmt+0x192f/0x2cf0 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1594 [inline] ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1648 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Second to last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:491 kvfree_call_rcu+0x109/0x8d0 kernel/rcu/tree.c:3332 cfg80211_update_known_bss+0x166/0x9e0 cfg80211_bss_update+0x171/0x20d0 net/wireless/scan.c:1732 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2482 [inline] cfg80211_inform_bss_frame_data+0xc5b/0x22c0 net/wireless/scan.c:2515 ieee80211_bss_info_update+0x801/0xf00 net/mac80211/scan.c:190 ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline] ieee80211_ibss_rx_queued_mgmt+0x192f/0x2cf0 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1594 [inline] ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1648 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 The buggy address belongs to the object at ffff88807e674180 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 0 bytes inside of allocated 78-byte region [ffff88807e674180, ffff88807e6741ce) The buggy address belongs to the physical page: page:ffffea0001f99d00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7e674 anon flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000200 ffff888012441780 0000000000000000 dead000000000001 raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 5086, tgid 5086 (kworker/1:7), ts 192068357707, free_ts 192042418057 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1731 prep_new_page mm/page_alloc.c:1738 [inline] get_page_from_freelist+0x321c/0x33a0 mm/page_alloc.c:3502 __alloc_pages+0x255/0x670 mm/page_alloc.c:4768 alloc_slab_page+0x6a/0x160 mm/slub.c:1851 allocate_slab mm/slub.c:1998 [inline] new_slab+0x84/0x2f0 mm/slub.c:2051 ___slab_alloc+0xa85/0x10a0 mm/slub.c:3192 __slab_alloc mm/slub.c:3291 [inline] __slab_alloc_node mm/slub.c:3344 [inline] slab_alloc_node mm/slub.c:3441 [inline] __kmem_cache_alloc_node+0x1b8/0x290 mm/slub.c:3490 kmalloc_trace+0x2a/0xe0 mm/slab_common.c:1057 kmalloc include/linux/slab.h:559 [inline] kzalloc include/linux/slab.h:680 [inline] nsim_fib_event_schedule_work drivers/net/netdevsim/fib.c:990 [inline] nsim_fib_event_nb+0x17c/0x10b0 drivers/net/netdevsim/fib.c:1043 notifier_call_chain+0x18c/0x3a0 kernel/notifier.c:93 atomic_notifier_call_chain+0xb6/0x150 kernel/notifier.c:231 call_fib_notifiers+0x31/0x60 net/core/fib_notifier.c:35 call_fib6_entry_notifiers net/ipv6/ip6_fib.c:401 [inline] fib6_add_rt2node net/ipv6/ip6_fib.c:1223 [inline] fib6_add+0x1b78/0x3d40 net/ipv6/ip6_fib.c:1477 __ip6_ins_rt net/ipv6/route.c:1301 [inline] ip6_ins_rt+0x106/0x170 net/ipv6/route.c:1311 __ipv6_ifa_notify+0x5c0/0x11d0 net/ipv6/addrconf.c:6163 ipv6_ifa_notify net/ipv6/addrconf.c:6202 [inline] addrconf_dad_completed+0x18d/0xcf0 net/ipv6/addrconf.c:4214 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1302 [inline] free_unref_page_prepare+0x903/0xa30 mm/page_alloc.c:2564 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2659 qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:185 kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292 __kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:186 [inline] slab_post_alloc_hook+0x68/0x3a0 mm/slab.h:711 slab_alloc_node mm/slub.c:3451 [inline] __kmem_cache_alloc_node+0x14c/0x290 mm/slub.c:3490 kmalloc_node_trace+0x27/0xe0 mm/slab_common.c:1070 kmalloc_node include/linux/slab.h:575 [inline] kzalloc_node include/linux/slab.h:691 [inline] __get_vm_area_node+0x125/0x370 mm/vmalloc.c:2544 __vmalloc_node_range+0x3e5/0x14e0 mm/vmalloc.c:3217 __vmalloc_node mm/vmalloc.c:3322 [inline] vzalloc+0x79/0x90 mm/vmalloc.c:3395 alloc_counters+0xd7/0x760 net/ipv4/netfilter/ip_tables.c:799 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:837 [inline] get_entries net/ipv6/netfilter/ip6_tables.c:1039 [inline] do_ip6t_get_ctl+0xec4/0x18d0 net/ipv6/netfilter/ip6_tables.c:1669 nf_getsockopt+0x292/0x2c0 net/netfilter/nf_sockopt.c:116 ipv6_getsockopt+0x25d/0x380 net/ipv6/ipv6_sockglue.c:1500 tcp_getsockopt+0x160/0x1c0 net/ipv4/tcp.c:4410 Memory state around the buggy address: ffff88807e674080: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88807e674100: 00 00 00 00 00 00 00 00 01 fc fc fc fc fc fc fc >ffff88807e674180: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc ^ ffff88807e674200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88807e674280: 00 00 00 00 00 00 00 00 01 fc fc fc fc fc fc fc ==================================================================