loop0: detected capacity change from 0 to 1024 hfsplus: request for non-existent node 32768 in B*Tree hfsplus: request for non-existent node 32768 in B*Tree ================================================================== BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x232/0x250 fs/hfsplus/bnode.c:32 Read of size 8 at addr ffff88801e5328c0 by task syz-executor.0/5499 CPU: 0 PID: 5499 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller-15029-gbe3ca57cfb77 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc4/0x620 mm/kasan/report.c:475 kasan_report+0xda/0x110 mm/kasan/report.c:588 hfsplus_bnode_read+0x232/0x250 fs/hfsplus/bnode.c:32 hfsplus_bnode_read_u16 fs/hfsplus/bnode.c:45 [inline] hfsplus_bnode_dump+0x2a2/0x3d0 fs/hfsplus/bnode.c:321 hfsplus_brec_remove+0x3de/0x4f0 fs/hfsplus/brec.c:229 __hfsplus_delete_attr+0x29e/0x3b0 fs/hfsplus/attributes.c:299 hfsplus_delete_all_attrs+0x26d/0x330 fs/hfsplus/attributes.c:378 hfsplus_delete_cat+0x83b/0xdd0 fs/hfsplus/catalog.c:425 hfsplus_unlink+0x213/0x7f0 fs/hfsplus/dir.c:385 vfs_unlink+0x2f1/0x900 fs/namei.c:4318 do_unlinkat+0x5bc/0x740 fs/namei.c:4382 __do_sys_unlink fs/namei.c:4430 [inline] __se_sys_unlink fs/namei.c:4428 [inline] __x64_sys_unlink+0xc8/0x110 fs/namei.c:4428 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7ff8fe87cb29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff8ff55a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007ff8fe99bf80 RCX: 00007ff8fe87cb29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140 RBP: 00007ff8fe8c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff8fe99bf80 R15: 00007ffd9d0b9b88 Allocated by task 5499: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:198 [inline] __do_kmalloc_node mm/slab_common.c:1007 [inline] __kmalloc+0x60/0x100 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] kzalloc include/linux/slab.h:721 [inline] __hfs_bnode_create+0x108/0x860 fs/hfsplus/bnode.c:409 hfsplus_bnode_find+0x2c4/0xcb0 fs/hfsplus/bnode.c:486 hfsplus_brec_find+0x2b9/0x520 fs/hfsplus/bfind.c:183 hfsplus_find_attr fs/hfsplus/attributes.c:160 [inline] hfsplus_delete_all_attrs+0x246/0x330 fs/hfsplus/attributes.c:371 hfsplus_delete_cat+0x83b/0xdd0 fs/hfsplus/catalog.c:425 hfsplus_unlink+0x213/0x7f0 fs/hfsplus/dir.c:385 vfs_unlink+0x2f1/0x900 fs/namei.c:4318 do_unlinkat+0x5bc/0x740 fs/namei.c:4382 __do_sys_unlink fs/namei.c:4430 [inline] __se_sys_unlink fs/namei.c:4428 [inline] __x64_sys_unlink+0xc8/0x110 fs/namei.c:4428 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b Last potentially related work creation: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492 insert_work+0x38/0x230 kernel/workqueue.c:1647 __queue_work+0x5d0/0x1050 kernel/workqueue.c:1799 queue_work_on+0xed/0x110 kernel/workqueue.c:1834 queue_work include/linux/workqueue.h:562 [inline] addr_event.constprop.0+0x391/0x560 drivers/infiniband/core/roce_gid_mgmt.c:853 inet6addr_event+0x113/0x180 drivers/infiniband/core/roce_gid_mgmt.c:883 notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93 atomic_notifier_call_chain+0x71/0x1b0 kernel/notifier.c:231 ipv6_add_addr+0x1400/0x2040 net/ipv6/addrconf.c:1176 addrconf_add_linklocal+0x299/0x640 net/ipv6/addrconf.c:3264 addrconf_addr_gen+0x366/0x3b0 net/ipv6/addrconf.c:3395 addrconf_dev_config net/ipv6/addrconf.c:3440 [inline] addrconf_init_auto_addrs+0x446/0x810 net/ipv6/addrconf.c:3518 addrconf_notify+0xe6a/0x1920 net/ipv6/addrconf.c:3691 notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93 call_netdevice_notifiers_info+0xbe/0x130 net/core/dev.c:1965 call_netdevice_notifiers_extack net/core/dev.c:2003 [inline] call_netdevice_notifiers net/core/dev.c:2017 [inline] __dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8642 dev_change_flags+0x122/0x170 net/core/dev.c:8680 do_setlink+0x1a2f/0x3fa0 net/core/rtnetlink.c:2916 __rtnl_newlink+0xc1f/0x1930 net/core/rtnetlink.c:3707 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3754 rtnetlink_rcv_msg+0x3c7/0xe00 net/core/rtnetlink.c:6558 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x53b/0x810 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xd5/0x180 net/socket.c:745 __sys_sendto+0x255/0x340 net/socket.c:2194 __do_sys_sendto net/socket.c:2206 [inline] __se_sys_sendto net/socket.c:2202 [inline] __x64_sys_sendto+0xe0/0x1b0 net/socket.c:2202 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b The buggy address belongs to the object at ffff88801e532800 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 40 bytes to the right of allocated 152-byte region [ffff88801e532800, ffff88801e532898) The buggy address belongs to the physical page: page:ffffea0000794c80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1e532 flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000800 ffff888013041a00 ffffea00007f7a40 dead000000000004 raw: 0000000000000000 0000000080100010 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 1, tgid 1 (swapper/0), ts 6718161624, free_ts 6714775436 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1544 [inline] get_page_from_freelist+0xa25/0x36c0 mm/page_alloc.c:3312 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4568 alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133 alloc_slab_page mm/slub.c:1870 [inline] allocate_slab+0x251/0x380 mm/slub.c:2017 new_slab mm/slub.c:2070 [inline] ___slab_alloc+0x8c7/0x1580 mm/slub.c:3223 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322 __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] __kmem_cache_alloc_node+0x131/0x310 mm/slub.c:3517 kmalloc_trace+0x25/0xe0 mm/slab_common.c:1098 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:721 [inline] call_usermodehelper_setup+0x9a/0x340 kernel/umh.c:363 kobject_uevent_env+0x1678/0x1800 lib/kobject_uevent.c:614 device_add+0x1113/0x1aa0 drivers/base/core.c:3606 wiphy_register+0x2094/0x2ce0 net/wireless/core.c:962 virt_wifi_make_wiphy drivers/net/wireless/virtual/virt_wifi.c:383 [inline] virt_wifi_init_module+0x33d/0x460 drivers/net/wireless/virtual/virt_wifi.c:665 do_one_initcall+0x11c/0x640 init/main.c:1236 do_initcall_level init/main.c:1298 [inline] do_initcalls init/main.c:1314 [inline] do_basic_setup init/main.c:1333 [inline] kernel_init_freeable+0x5c2/0x900 init/main.c:1551 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare+0x4f8/0xa90 mm/page_alloc.c:2347 free_unref_page_list+0xe6/0xb30 mm/page_alloc.c:2533 release_pages+0x32a/0x14e0 mm/swap.c:1042 tlb_batch_pages_flush+0x9a/0x190 mm/mmu_gather.c:98 tlb_flush_mmu_free mm/mmu_gather.c:293 [inline] tlb_flush_mmu mm/mmu_gather.c:300 [inline] tlb_finish_mmu+0x14b/0x6f0 mm/mmu_gather.c:392 exit_mmap+0x38b/0xa60 mm/mmap.c:3321 __mmput+0x12a/0x4d0 kernel/fork.c:1349 mmput+0x62/0x70 kernel/fork.c:1371 free_bprm+0x144/0x3f0 fs/exec.c:1490 kernel_execve+0x3e7/0x4e0 fs/exec.c:2024 call_usermodehelper_exec_async+0x256/0x4c0 kernel/umh.c:110 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Memory state around the buggy address: ffff88801e532780: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc ffff88801e532800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88801e532880: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88801e532900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801e532980: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ==================================================================