hpfs: Proceeding, but your filesystem could be corrupted if you delete files or directories hpfs: You really don't want any checks? You are crazy... hpfs: hpfs_map_sector(): read error hpfs: code page support is disabled ================================================================== BUG: KASAN: slab-out-of-bounds in strcmp+0x6f/0xb0 lib/string.c:288 Read of size 1 at addr ffff888025a9dfa6 by task syz.5.205/7217 CPU: 1 PID: 7217 Comm: syz.5.205 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x16c/0x230 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xac/0x220 mm/kasan/report.c:468 kasan_report+0x117/0x150 mm/kasan/report.c:581 strcmp+0x6f/0xb0 lib/string.c:288 hpfs_get_ea+0x115/0xda0 fs/hpfs/ea.c:139 hpfs_read_inode+0x19e/0x1010 fs/hpfs/inode.c:63 hpfs_fill_super+0x12d5/0x1ec0 fs/hpfs/super.c:712 mount_bdev+0x22b/0x2d0 fs/super.c:1643 legacy_get_tree+0xea/0x180 fs/fs_context.c:662 vfs_get_tree+0x8c/0x280 fs/super.c:1764 do_new_mount+0x24b/0xa40 fs/namespace.c:3386 do_mount fs/namespace.c:3726 [inline] __do_sys_mount fs/namespace.c:3935 [inline] __se_sys_mount+0x2da/0x3c0 fs/namespace.c:3912 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f4d02190eea 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:00007f4d03087e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f4d03087ef0 RCX: 00007f4d02190eea RDX: 000020000000a000 RSI: 0000200000000000 RDI: 00007f4d03087eb0 RBP: 000020000000a000 R08: 00007f4d03087ef0 R09: 0000000003200041 R10: 0000000003200041 R11: 0000000000000246 R12: 0000200000000000 R13: 00007f4d03087eb0 R14: 0000000000009e15 R15: 0000200000000040 Allocated by task 1093: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4e/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:198 [inline] __do_kmalloc_node mm/slab_common.c:1007 [inline] __kmalloc_node_track_caller+0xb2/0x230 mm/slab_common.c:1027 kmemdup+0x2b/0x70 mm/util.c:131 kmemdup include/linux/fortify-string.h:779 [inline] neigh_parms_alloc+0x8a/0x510 net/core/neighbour.c:1721 ipv6_add_dev+0x2f9/0x11f0 net/ipv6/addrconf.c:394 addrconf_notify+0x67b/0x1010 net/ipv6/addrconf.c:3622 notifier_call_chain+0x197/0x390 kernel/notifier.c:93 call_netdevice_notifiers_extack net/core/dev.c:2064 [inline] call_netdevice_notifiers net/core/dev.c:2078 [inline] register_netdevice+0x160c/0x1ae0 net/core/dev.c:10313 nsim_init_netdevsim drivers/net/netdevsim/netdev.c:343 [inline] nsim_create+0x3ca/0x4a0 drivers/net/netdevsim/netdev.c:401 __nsim_dev_port_add+0x702/0xb00 drivers/net/netdevsim/dev.c:1393 nsim_dev_port_add_all+0x35/0xe0 drivers/net/netdevsim/dev.c:1449 nsim_dev_reload_create drivers/net/netdevsim/dev.c:1501 [inline] nsim_dev_reload_up+0x455/0x770 drivers/net/netdevsim/dev.c:988 devlink_reload+0x2c1/0x600 net/devlink/dev.c:400 devlink_pernet_pre_exit+0x18a/0x340 net/devlink/core.c:288 ops_pre_exit_list net/core/net_namespace.c:163 [inline] cleanup_net+0x57f/0xb90 net/core/net_namespace.c:632 process_one_work kernel/workqueue.c:2634 [inline] process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Last potentially related work creation: kasan_save_stack+0x3e/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xaf/0xc0 mm/kasan/generic.c:492 insert_work+0x3d/0x310 kernel/workqueue.c:1651 __queue_work+0xc39/0x1020 kernel/workqueue.c:1800 queue_work_on+0x121/0x1e0 kernel/workqueue.c:1835 queue_work include/linux/workqueue.h:562 [inline] netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:658 [inline] netdevice_event+0x769/0x890 drivers/infiniband/core/roce_gid_mgmt.c:801 notifier_call_chain+0x197/0x390 kernel/notifier.c:93 call_netdevice_notifiers_extack net/core/dev.c:2064 [inline] call_netdevice_notifiers net/core/dev.c:2078 [inline] register_netdevice+0x160c/0x1ae0 net/core/dev.c:10313 geneve_configure+0x637/0xa70 drivers/net/geneve.c:1444 geneve_newlink+0xf3/0x180 drivers/net/geneve.c:1695 rtnl_newlink_create net/core/rtnetlink.c:3517 [inline] __rtnl_newlink net/core/rtnetlink.c:3737 [inline] rtnl_newlink+0x14d0/0x2020 net/core/rtnetlink.c:3750 rtnetlink_rcv_msg+0x7c7/0xf10 net/core/rtnetlink.c:6472 netlink_rcv_skb+0x216/0x480 net/netlink/af_netlink.c:2545 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x751/0x8d0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8c1/0xbe0 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x46a/0x620 net/socket.c:2201 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0xf0 net/socket.c:2209 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 The buggy address belongs to the object at ffff888025a9df00 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 6 bytes to the right of allocated 160-byte region [ffff888025a9df00, ffff888025a9dfa0) The buggy address belongs to the physical page: page:ffffea000096a740 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888025a9d500 pfn:0x25a9d flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000800 ffff888017841a00 ffffea000096a250 ffffea0000c18990 raw: ffff888025a9d500 0000000000100009 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 0x12c00(GFP_NOIO|__GFP_NOWARN|__GFP_NORETRY), pid 23, tgid 23 (kworker/1:0), ts 14296520490, free_ts 14226928343 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1cd/0x210 mm/page_alloc.c:1554 prep_new_page mm/page_alloc.c:1561 [inline] get_page_from_freelist+0x195c/0x19f0 mm/page_alloc.c:3191 __alloc_pages+0x1e3/0x460 mm/page_alloc.c:4457 alloc_slab_page+0x5d/0x170 mm/slub.c:1881 allocate_slab mm/slub.c:2028 [inline] new_slab+0x87/0x2e0 mm/slub.c:2081 ___slab_alloc+0xc6d/0x1300 mm/slub.c:3253 __slab_alloc mm/slub.c:3339 [inline] __slab_alloc_node mm/slub.c:3392 [inline] slab_alloc_node mm/slub.c:3485 [inline] __kmem_cache_alloc_node+0x1a2/0x260 mm/slub.c:3534 __do_kmalloc_node mm/slab_common.c:1006 [inline] __kmalloc+0xa4/0x240 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] usb_alloc_urb+0x46/0x140 drivers/usb/core/urb.c:75 usb_internal_control_msg drivers/usb/core/message.c:96 [inline] usb_control_msg+0x119/0x3e0 drivers/usb/core/message.c:154 get_port_status drivers/usb/core/hub.c:609 [inline] hub_ext_port_status+0x103/0x6d0 drivers/usb/core/hub.c:626 usb_hub_port_status drivers/usb/core/hub.c:648 [inline] hub_activate+0x77b/0x1a60 drivers/usb/core/hub.c:1159 process_one_work kernel/workqueue.c:2634 [inline] process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1154 [inline] free_unref_page_prepare+0x7ce/0x8e0 mm/page_alloc.c:2336 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2429 mm_free_pgd kernel/fork.c:809 [inline] __mmdrop+0xb4/0x3d0 kernel/fork.c:925 free_bprm+0x171/0x3e0 fs/exec.c:1514 kernel_execve+0x3c2/0x9c0 fs/exec.c:2060 call_usermodehelper_exec_async+0x20b/0x350 kernel/umh.c:110 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Memory state around the buggy address: ffff888025a9de80: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc ffff888025a9df00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888025a9df80: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888025a9e000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888025a9e080: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ==================================================================