================================================================== BUG: KASAN: slab-out-of-bounds in memcpy_from_page include/linux/highmem.h:393 [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+0x310/0x440 fs/hfs/bnode.c:70 Write of size 94 at addr ffff888056671780 by task syz.5.576/6807 CPU: 1 PID: 6807 Comm: syz.5.576 Not tainted 6.1.119-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189 memcpy+0x3c/0x60 mm/kasan/shadow.c:66 memcpy_from_page include/linux/highmem.h:393 [inline] hfs_bnode_read fs/hfs/bnode.c:35 [inline] hfs_bnode_read_key+0x310/0x440 fs/hfs/bnode.c:70 hfs_brec_insert+0x7ef/0xbd0 fs/hfs/brec.c:159 hfs_cat_move+0x572/0x1050 fs/hfs/catalog.c:336 hfs_rename+0x242/0x320 fs/hfs/dir.c:299 vfs_rename+0xd32/0x10f0 fs/namei.c:4874 do_renameat2+0xde0/0x1440 fs/namei.c:5027 __do_sys_renameat2 fs/namei.c:5060 [inline] __se_sys_renameat2 fs/namei.c:5057 [inline] __x64_sys_renameat2+0xce/0xe0 fs/namei.c:5057 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f8e7b57e819 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8e7c45d038 EFLAGS: 00000246 ORIG_RAX: 000000000000013c RAX: ffffffffffffffda RBX: 00007f8e7b735fa0 RCX: 00007f8e7b57e819 RDX: 0000000000000004 RSI: 0000000020000380 RDI: 0000000000000004 RBP: 00007f8e7b5f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000200 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8e7b735fa0 R15: 00007fffe51f9e68 Allocated by task 6807: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc+0xb2/0x230 mm/slab_common.c:949 kmalloc include/linux/slab.h:562 [inline] hfs_find_init+0x8c/0x1e0 fs/hfs/bfind.c:21 hfs_cat_move+0x143/0x1050 fs/hfs/catalog.c:301 hfs_rename+0x242/0x320 fs/hfs/dir.c:299 vfs_rename+0xd32/0x10f0 fs/namei.c:4874 do_renameat2+0xde0/0x1440 fs/namei.c:5027 __do_sys_renameat2 fs/namei.c:5060 [inline] __se_sys_renameat2 fs/namei.c:5057 [inline] __x64_sys_renameat2+0xce/0xe0 fs/namei.c:5057 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486 kvfree_call_rcu+0x116/0x8c0 kernel/rcu/tree.c:3401 cfg80211_update_known_bss+0x16b/0x9e0 cfg80211_bss_update+0x187/0x2280 net/wireless/scan.c:1817 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2476 [inline] cfg80211_inform_bss_frame_data+0xae4/0x1680 net/wireless/scan.c:2509 ieee80211_bss_info_update+0x847/0xf00 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+0x1962/0x2dd0 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1668 [inline] ieee80211_iface_work+0x7aa/0xce0 net/mac80211/iface.c:1722 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Second to last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486 kvfree_call_rcu+0x116/0x8c0 kernel/rcu/tree.c:3401 cfg80211_update_known_bss+0x16b/0x9e0 cfg80211_bss_update+0x187/0x2280 net/wireless/scan.c:1817 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2476 [inline] cfg80211_inform_bss_frame_data+0xae4/0x1680 net/wireless/scan.c:2509 ieee80211_bss_info_update+0x847/0xf00 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+0x1962/0x2dd0 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1668 [inline] ieee80211_iface_work+0x7aa/0xce0 net/mac80211/iface.c:1722 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 The buggy address belongs to the object at ffff888056671780 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 0 bytes inside of 96-byte region [ffff888056671780, ffff8880566717e0) The buggy address belongs to the physical page: page:ffffea0001599c40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x56671 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 dead000000000100 dead000000000122 ffff888017c41780 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 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 126, tgid 126 (kworker/0:2), ts 371284332697, free_ts 371277015616 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2517 prep_new_page mm/page_alloc.c:2524 [inline] get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4313 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5590 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026 kmalloc include/linux/slab.h:557 [inline] kzalloc include/linux/slab.h:693 [inline] nsim_fib6_rt_create drivers/net/netdevsim/fib.c:547 [inline] nsim_fib6_rt_insert drivers/net/netdevsim/fib.c:752 [inline] nsim_fib6_event drivers/net/netdevsim/fib.c:856 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:889 [inline] nsim_fib_event_work+0x19be/0x4120 drivers/net/netdevsim/fib.c:1494 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 process_scheduled_works kernel/workqueue.c:2355 [inline] worker_thread+0xd04/0x1200 kernel/workqueue.c:2441 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1444 [inline] free_pcp_prepare mm/page_alloc.c:1494 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3369 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3464 __dev_alloc_name+0x87b/0x940 net/core/dev.c:1090 dev_alloc_name_ns net/core/dev.c:1132 [inline] dev_alloc_name+0xb0/0x130 net/core/dev.c:1154 ieee80211_if_add+0x1153/0x1890 net/mac80211/iface.c:2201 ieee80211_register_hw+0x32ff/0x3f10 net/mac80211/main.c:1400 mac80211_hwsim_new_radio+0x22d9/0x4060 drivers/net/wireless/mac80211_hwsim.c:4582 hwsim_new_radio_nl+0xc54/0x1190 drivers/net/wireless/mac80211_hwsim.c:5176 genl_family_rcv_msg_doit net/netlink/genetlink.c:756 [inline] genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0xc1a/0xf70 net/netlink/genetlink.c:850 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2493 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline] netlink_unicast+0x7d8/0x970 net/netlink/af_netlink.c:1337 netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1859 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] __sys_sendto+0x480/0x600 net/socket.c:2153 __do_sys_sendto net/socket.c:2165 [inline] __se_sys_sendto net/socket.c:2161 [inline] __x64_sys_sendto+0xda/0xf0 net/socket.c:2161 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 Memory state around the buggy address: ffff888056671680: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff888056671700: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff888056671780: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc ^ ffff888056671800: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc ffff888056671880: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc ==================================================================