loop0: detected capacity change from 0 to 64 ================================================================== BUG: KASAN: slab-out-of-bounds in hfs_asc2mac+0x693/0x720 fs/hfs/trans.c:133 Write of size 1 at addr ffff8880220d5ace by task syz-executor203/3632 CPU: 0 PID: 3632 Comm: syz-executor203 Not tainted 6.1.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15e/0x45d mm/kasan/report.c:395 kasan_report+0xbf/0x1f0 mm/kasan/report.c:495 hfs_asc2mac+0x693/0x720 fs/hfs/trans.c:133 hfs_cat_build_key+0xc4/0x170 fs/hfs/catalog.c:28 hfs_lookup+0x1c6/0x310 fs/hfs/dir.c:31 lookup_open.isra.0+0x76a/0x12a0 fs/namei.c:3391 open_last_lookups fs/namei.c:3481 [inline] path_openat+0x996/0x2860 fs/namei.c:3711 do_filp_open+0x1ba/0x410 fs/namei.c:3741 do_sys_openat2+0x16d/0x4c0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x143/0x1f0 fs/open.c:1337 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa80a1aeec9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdbe5ebbb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ffdbe5ebbc8 RCX: 00007fa80a1aeec9 RDX: 000000000000275a RSI: 0000000020000300 RDI: 00000000ffffff9c RBP: 00007ffdbe5ebbc0 R08: 00007ffdbe5ebbc0 R09: 00007fa80a16c480 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 3632: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:371 [inline] ____kasan_kmalloc mm/kasan/common.c:330 [inline] __kasan_kmalloc+0xa5/0xb0 mm/kasan/common.c:380 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc+0x5a/0xd0 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] hfs_find_init+0x95/0x240 fs/hfs/bfind.c:21 hfs_lookup+0x102/0x310 fs/hfs/dir.c:28 lookup_open.isra.0+0x76a/0x12a0 fs/namei.c:3391 open_last_lookups fs/namei.c:3481 [inline] path_openat+0x996/0x2860 fs/namei.c:3711 do_filp_open+0x1ba/0x410 fs/namei.c:3741 do_sys_openat2+0x16d/0x4c0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x143/0x1f0 fs/open.c:1337 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff8880220d5a80 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 78 bytes inside of 96-byte region [ffff8880220d5a80, ffff8880220d5ae0) The buggy address belongs to the physical page: page:ffffea0000883540 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x220d5 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 dead000000000100 dead000000000122 ffff888012041780 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 1, tgid 1 (swapper/0), ts 7851050128, free_ts 7430834663 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x10b5/0x2d50 mm/page_alloc.c:4291 __alloc_pages+0x1cb/0x5b0 mm/page_alloc.c:5558 alloc_page_interleave+0x1e/0x200 mm/mempolicy.c:2118 alloc_pages+0x233/0x270 mm/mempolicy.c:2280 alloc_slab_page mm/slub.c:1794 [inline] allocate_slab+0x25f/0x350 mm/slub.c:1939 new_slab mm/slub.c:1992 [inline] ___slab_alloc+0xa91/0x1400 mm/slub.c:3180 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3279 slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x199/0x3e0 mm/slub.c:3437 kmalloc_trace+0x26/0x60 mm/slab_common.c:1045 kmalloc include/linux/slab.h:553 [inline] kzalloc include/linux/slab.h:689 [inline] dev_pm_qos_expose_flags+0x9c/0x310 drivers/base/power/qos.c:782 usb_hub_create_port_device+0x9c5/0xd70 drivers/usb/core/port.c:715 hub_configure drivers/usb/core/hub.c:1659 [inline] hub_probe.cold+0x2534/0x2aa3 drivers/usb/core/hub.c:1896 usb_probe_interface+0x30f/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1459 [inline] free_pcp_prepare+0x65c/0xd90 mm/page_alloc.c:1509 free_unref_page_prepare mm/page_alloc.c:3387 [inline] free_unref_page+0x1d/0x4d0 mm/page_alloc.c:3483 __vunmap+0x85d/0xd30 mm/vmalloc.c:2713 free_work+0x5c/0x80 mm/vmalloc.c:97 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Memory state around the buggy address: ffff8880220d5980: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8880220d5a00: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc >ffff8880220d5a80: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc ^ ffff8880220d5b00: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc ffff8880220d5b80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ==================================================================