==================================================================
BUG: KASAN: double-free or invalid-free in slab_free mm/slub.c:3204 [inline]
BUG: KASAN: double-free or invalid-free in kfree+0xc2/0x570 mm/slub.c:4192

CPU: 1 PID: 18172 Comm: syz-executor.5 Not tainted 5.10.91-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x81/0xac lib/dump_stack.c:118
 print_address_description.constprop.0+0x24/0x150 mm/kasan/report.c:233
 kasan_report_invalid_free+0x56/0x80 mm/kasan/report.c:358
 ____kasan_slab_free mm/kasan/common.c:340 [inline]
 __kasan_slab_free+0x134/0x150 mm/kasan/common.c:368
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:1596 [inline]
 slab_free_freelist_hook+0x9b/0x1a0 mm/slub.c:1622
 slab_free mm/slub.c:3204 [inline]
 kfree+0xc2/0x570 mm/slub.c:4192
 io_put_identity fs/io_uring.c:1262 [inline]
 io_req_clean_work fs/io_uring.c:1300 [inline]
 io_dismantle_req+0xa17/0xf50 fs/io_uring.c:1896
 io_req_free_batch fs/io_uring.c:2202 [inline]
 io_iopoll_complete+0x545/0x1220 fs/io_uring.c:2377
 io_do_iopoll+0x4e9/0x750 fs/io_uring.c:2433
 io_iopoll_try_reap_events.part.0+0x113/0x1d0 fs/io_uring.c:2472
 io_iopoll_try_reap_events fs/io_uring.c:2465 [inline]
 __io_uring_cancel_task_requests fs/io_uring.c:8715 [inline]
 io_uring_cancel_task_requests+0xdd5/0x1110 fs/io_uring.c:8763
 __io_uring_files_cancel+0x114/0x1c0 fs/io_uring.c:8845
 __io_uring_task_cancel+0x201/0x220 fs/io_uring.c:8894
 io_uring_task_cancel include/linux/io_uring.h:46 [inline]
 bprm_execve+0x113/0x13d0 fs/exec.c:1789
 do_execveat_common+0x553/0x730 fs/exec.c:1919
 do_execve fs/exec.c:1987 [inline]
 __do_sys_execve fs/exec.c:2063 [inline]
 __se_sys_execve fs/exec.c:2058 [inline]
 __x64_sys_execve+0x8a/0xb0 fs/exec.c:2058
 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fd708d75ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd708ccb188 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00007fd708e89020 RCX: 00007fd708d75ae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007fd708dcff25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff5fad649f R14: 00007fd708ccb300 R15: 0000000000022000

Allocated by task 18172:
 kasan_save_stack+0x23/0x50 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:428 [inline]
 ____kasan_kmalloc mm/kasan/common.c:507 [inline]
 ____kasan_kmalloc mm/kasan/common.c:466 [inline]
 __kasan_kmalloc+0xa9/0xe0 mm/kasan/common.c:516
 kasan_kmalloc include/linux/kasan.h:269 [inline]
 kmem_cache_alloc_trace+0x1a9/0x340 mm/slub.c:2975
 kmalloc include/linux/slab.h:552 [inline]
 io_uring_alloc_task_context+0x43/0x2a0 fs/io_uring.c:7903
 io_uring_add_task_file+0x1c8/0x250 fs/io_uring.c:8782
 io_uring_install_fd fs/io_uring.c:9316 [inline]
 io_uring_create fs/io_uring.c:9518 [inline]
 io_uring_setup+0x174e/0x2dc0 fs/io_uring.c:9557
 __do_sys_io_uring_setup fs/io_uring.c:9563 [inline]
 __se_sys_io_uring_setup fs/io_uring.c:9560 [inline]
 __x64_sys_io_uring_setup+0x4f/0x70 fs/io_uring.c:9560
 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

The buggy address belongs to the object at ffff8881135ab700
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 88 bytes inside of
 192-byte region [ffff8881135ab700, ffff8881135ab7c0)
The buggy address belongs to the page:
page:ffffea00044d6ac0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1135ab
flags: 0x8000000000000200(slab)
raw: 8000000000000200 ffffea0004449040 0000000300000003 ffff888100043380
raw: 0000000000000000 0000000000100010 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 173, ts 2973729750, free_ts 2973475524
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x102/0x130 mm/page_alloc.c:2385
 prep_new_page mm/page_alloc.c:2391 [inline]
 get_page_from_freelist+0x1ef5/0x3030 mm/page_alloc.c:4063
 __alloc_pages_nodemask+0x28a/0x1f90 mm/page_alloc.c:5106
 __alloc_pages include/linux/gfp.h:529 [inline]
 __alloc_pages_node include/linux/gfp.h:542 [inline]
 alloc_pages_node include/linux/gfp.h:556 [inline]
 alloc_pages include/linux/gfp.h:575 [inline]
 alloc_slab_page mm/slub.c:1666 [inline]
 allocate_slab+0x32b/0x480 mm/slub.c:1809
 new_slab mm/slub.c:1870 [inline]
 new_slab_objects mm/slub.c:2629 [inline]
 ___slab_alloc.constprop.0+0x339/0x750 mm/slub.c:2792
 __slab_alloc mm/slub.c:2832 [inline]
 slab_alloc_node mm/slub.c:2914 [inline]
 slab_alloc mm/slub.c:2956 [inline]
 kmem_cache_alloc_trace+0x2d0/0x340 mm/slub.c:2973
 kmalloc include/linux/slab.h:552 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 kernfs_fop_open+0x244/0xc20 fs/kernfs/file.c:628
 do_dentry_open+0x417/0x1020 fs/open.c:819
 vfs_open+0x9a/0xc0 fs/open.c:942
 do_open fs/namei.c:3327 [inline]
 path_openat+0x1dc6/0x38e0 fs/namei.c:3444
 do_filp_open+0x17d/0x3b0 fs/namei.c:3471
 do_sys_openat2+0x120/0x3c0 fs/open.c:1211
 do_sys_open fs/open.c:1227 [inline]
 __do_sys_openat fs/open.c:1243 [inline]
 __se_sys_openat fs/open.c:1238 [inline]
 __x64_sys_openat+0x124/0x200 fs/open.c:1238
 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1331 [inline]
 free_pcp_prepare+0x18f/0x200 mm/page_alloc.c:1405
 free_unref_page_prepare mm/page_alloc.c:3291 [inline]
 free_unref_page+0x15/0x1c0 mm/page_alloc.c:3341
 free_the_page mm/page_alloc.c:5165 [inline]
 __free_pages+0x41/0x100 mm/page_alloc.c:5173
 free_pages mm/page_alloc.c:5184 [inline]
 free_pages+0x3f/0x80 mm/page_alloc.c:5180
 tlb_batch_list_free mm/mmu_gather.c:61 [inline]
 tlb_finish_mmu+0x1f7/0x790 mm/mmu_gather.c:331
 unmap_region+0x291/0x370 mm/mmap.c:2783
 __do_munmap+0x48b/0x1050 mm/mmap.c:3012
 __do_sys_brk+0x3a9/0x790 mm/mmap.c:271
 __se_sys_brk mm/mmap.c:209 [inline]
 __x64_sys_brk+0x2c/0x40 mm/mmap.c:209
 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Memory state around the buggy address:
 ffff8881135ab600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881135ab680: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
>ffff8881135ab700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                    ^
 ffff8881135ab780: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
 ffff8881135ab800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================