==================================================================
BUG: KASAN: use-after-free in driver_find drivers/base/driver.c:293 [inline]
BUG: KASAN: use-after-free in driver_register+0x2c1/0x3e0 drivers/base/driver.c:233
Read of size 8 at addr ffff88802645b0c8 by task syz-executor.1/29438

CPU: 0 PID: 29438 Comm: syz-executor.1 Not tainted 5.19.0-rc3-syzkaller-00146-g92f20ff72066 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description+0x65/0x4b0 mm/kasan/report.c:313
 print_report+0xf4/0x210 mm/kasan/report.c:429
 kasan_report+0xfb/0x130 mm/kasan/report.c:491
 driver_find drivers/base/driver.c:293 [inline]
 driver_register+0x2c1/0x3e0 drivers/base/driver.c:233
 usb_gadget_register_driver_owner+0xd9/0x230 drivers/usb/gadget/udc/core.c:1558
 raw_ioctl_run+0xbd/0x300 drivers/usb/gadget/legacy/raw_gadget.c:515
 raw_ioctl+0x163/0xc20 drivers/usb/gadget/legacy/raw_gadget.c:1222
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f96b2088ec7
Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 34 54 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 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:00007f96b3258098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f96b3259110 RCX: 00007f96b2088ec7
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000005
RBP: 0000000000000005 R08: 000000000000ffff R09: 000000000000000b
R10: 00007f96b3258140 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000020000400 R14: 0000000020000600 R15: 0000000000000000
 </TASK>

Allocated by task 29413:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:436 [inline]
 ____kasan_kmalloc+0xdc/0x110 mm/kasan/common.c:515
 kasan_kmalloc include/linux/kasan.h:234 [inline]
 kmem_cache_alloc_trace+0x94/0x310 mm/slub.c:3284
 kmalloc include/linux/slab.h:600 [inline]
 kzalloc include/linux/slab.h:733 [inline]
 bus_add_driver+0xde/0x600 drivers/base/bus.c:602
 driver_register+0x2e9/0x3e0 drivers/base/driver.c:240
 usb_gadget_register_driver_owner+0xd9/0x230 drivers/usb/gadget/udc/core.c:1558
 raw_ioctl_run+0xbd/0x300 drivers/usb/gadget/legacy/raw_gadget.c:515
 raw_ioctl+0x163/0xc20 drivers/usb/gadget/legacy/raw_gadget.c:1222
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

Freed by task 29438:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4c/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0xd8/0x110 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:200 [inline]
 slab_free_hook mm/slub.c:1754 [inline]
 slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1780
 slab_free mm/slub.c:3536 [inline]
 kfree+0xc6/0x210 mm/slub.c:4584
 kobject_cleanup+0x235/0x470 lib/kobject.c:673
 driver_find drivers/base/driver.c:291 [inline]
 driver_register+0x29b/0x3e0 drivers/base/driver.c:233
 usb_gadget_register_driver_owner+0xd9/0x230 drivers/usb/gadget/udc/core.c:1558
 raw_ioctl_run+0xbd/0x300 drivers/usb/gadget/legacy/raw_gadget.c:515
 raw_ioctl+0x163/0xc20 drivers/usb/gadget/legacy/raw_gadget.c:1222
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

The buggy address belongs to the object at ffff88802645b000
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 200 bytes inside of
 256-byte region [ffff88802645b000, ffff88802645b100)

The buggy address belongs to the physical page:
page:ffffea0000991680 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802645ae00 pfn:0x2645a
head:ffffea0000991680 order:1 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea0001d80b08 ffffea00009b6d08 ffff888011c41b40
raw: ffff88802645ae00 000000000010000d 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0x1d2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 12917, tgid 12917 (udevd), ts 2580036956682, free_ts 2575343866504
 prep_new_page mm/page_alloc.c:2456 [inline]
 get_page_from_freelist+0x72b/0x7a0 mm/page_alloc.c:4198
 __alloc_pages+0x259/0x560 mm/page_alloc.c:5426
 alloc_slab_page+0x70/0xf0 mm/slub.c:1824
 allocate_slab+0x5e/0x520 mm/slub.c:1969
 new_slab mm/slub.c:2029 [inline]
 ___slab_alloc+0x42e/0xce0 mm/slub.c:3031
 __slab_alloc mm/slub.c:3118 [inline]
 slab_alloc_node mm/slub.c:3209 [inline]
 slab_alloc mm/slub.c:3251 [inline]
 kmem_cache_alloc_trace+0x25c/0x310 mm/slub.c:3282
 kmalloc include/linux/slab.h:600 [inline]
 kzalloc include/linux/slab.h:733 [inline]
 smk_fetch+0x91/0x140 security/smack/smack_lsm.c:290
 smack_d_instantiate+0x7b0/0xa10 security/smack/smack_lsm.c:3459
 security_d_instantiate+0xa5/0x100 security/security.c:2050
 d_splice_alias+0x6e/0x3b0 fs/dcache.c:3090
 __lookup_slow+0x27f/0x3d0 fs/namei.c:1701
 lookup_slow+0x53/0x70 fs/namei.c:1718
 walk_component+0x425/0x5a0 fs/namei.c:2014
 lookup_last fs/namei.c:2469 [inline]
 path_lookupat+0x17d/0x450 fs/namei.c:2493
 filename_lookup+0x277/0x640 fs/namei.c:2522
 vfs_statx+0x107/0x3f0 fs/stat.c:228
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1371 [inline]
 free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1421
 free_unref_page_prepare mm/page_alloc.c:3343 [inline]
 free_unref_page+0x7d/0x390 mm/page_alloc.c:3438
 do_slab_free mm/slub.c:3524 [inline]
 ___cache_free+0x118/0x1a0 mm/slub.c:3543
 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x169/0x180 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x2f/0xe0 mm/kasan/common.c:446
 kasan_slab_alloc include/linux/kasan.h:224 [inline]
 slab_post_alloc_hook mm/slab.h:750 [inline]
 slab_alloc_node mm/slub.c:3243 [inline]
 slab_alloc mm/slub.c:3251 [inline]
 __kmalloc+0x1bd/0x370 mm/slub.c:4442
 kmalloc include/linux/slab.h:605 [inline]
 tomoyo_realpath_from_path+0xd8/0x5f0 security/tomoyo/realpath.c:254
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_number_perm+0x219/0x7b0 security/tomoyo/file.c:723
 security_file_ioctl+0x55/0xb0 security/security.c:1551
 __do_sys_ioctl fs/ioctl.c:864 [inline]
 __se_sys_ioctl+0x48/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

Memory state around the buggy address:
 ffff88802645af80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802645b000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802645b080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                              ^
 ffff88802645b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802645b180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================