trusted_key: encrypted_key: insufficient parameters specified
==================================================================
BUG: KASAN: slab-use-after-free in key_put security/keys/key.c:657 [inline]
BUG: KASAN: slab-use-after-free in key_put+0x288/0x2a0 security/keys/key.c:646
Read of size 8 at addr ffff8880339fe440 by task syz.1.1061/10377

CPU: 0 UID: 0 PID: 10377 Comm: syz.1.1061 Not tainted 6.14.0-rc4-syzkaller-gd082ecbc71e9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xd9/0x110 mm/kasan/report.c:634
 key_put security/keys/key.c:657 [inline]
 key_put+0x288/0x2a0 security/keys/key.c:646
 __key_create_or_update+0x92b/0xe10 security/keys/key.c:940
 key_create_or_update+0x42/0x60 security/keys/key.c:1018
 __do_sys_add_key+0x29c/0x460 security/keys/keyctl.c:134
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9a1d57e759
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9a1e2c1038 EFLAGS: 00000246 ORIG_RAX: 00000000000000f8
RAX: ffffffffffffffda RBX: 00007f9a1d736058 RCX: 00007f9a1d57e759
RDX: 0000000020000100 RSI: 0000000020000180 RDI: 0000000020000140
RBP: 00007f9a1d5f175e R08: fffffffffffffffe R09: 0000000000000000
R10: 00000000000000ca R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9a1d736058 R15: 00007ffcc2e7df78
 </TASK>

Allocated by task 10377:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4115 [inline]
 slab_alloc_node mm/slub.c:4164 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4171
 key_alloc+0x3e3/0x13a0 security/keys/key.c:277
 __key_create_or_update+0x71f/0xe10 security/keys/key.c:930
 key_create_or_update+0x42/0x60 security/keys/key.c:1018
 __do_sys_add_key+0x29c/0x460 security/keys/keyctl.c:134
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 5841:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2353 [inline]
 slab_free mm/slub.c:4609 [inline]
 kmem_cache_free+0x2e2/0x4d0 mm/slub.c:4711
 key_gc_unused_keys.constprop.0+0x134/0x480 security/keys/gc.c:167
 key_garbage_collector+0x432/0x990 security/keys/gc.c:300
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3317 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

The buggy address belongs to the object at ffff8880339fe380
 which belongs to the cache key_jar of size 336
The buggy address is located 192 bytes inside of
 freed 336-byte region [ffff8880339fe380, ffff8880339fe4d0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880339fe700 pfn:0x339fe
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88814040b140 ffffea0001d8f800 dead000000000002
raw: ffff8880339fe700 0000000080120011 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88814040b140 ffffea0001d8f800 dead000000000002
head: ffff8880339fe700 0000000080120011 00000000f5000000 0000000000000000
head: 00fff00000000001 ffffea0000ce7f81 ffffffffffffffff 0000000000000000
head: 0000000000000002 0000000000000000 00000000ffffffff 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 7049, tgid 7035 (syz.3.115), ts 113889264033, free_ts 113832125521
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1551
 prep_new_page mm/page_alloc.c:1559 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3477
 __alloc_frozen_pages_noprof+0x221/0x2470 mm/page_alloc.c:4739
 alloc_pages_mpol+0x1fc/0x540 mm/mempolicy.c:2270
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2587 [inline]
 new_slab+0x23d/0x330 mm/slub.c:2640
 ___slab_alloc+0xc5d/0x1720 mm/slub.c:3826
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3916
 __slab_alloc_node mm/slub.c:3991 [inline]
 slab_alloc_node mm/slub.c:4152 [inline]
 kmem_cache_alloc_noprof+0xfa/0x3d0 mm/slub.c:4171
 key_alloc+0x3e3/0x13a0 security/keys/key.c:277
 keyring_alloc+0x44/0xc0 security/keys/keyring.c:526
 install_process_keyring_to_cred security/keys/process_keys.c:275 [inline]
 install_process_keyring security/keys/process_keys.c:300 [inline]
 lookup_user_key+0xa34/0x12f0 security/keys/process_keys.c:653
 __do_sys_add_key+0x25a/0x460 security/keys/keyctl.c:126
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5194 tgid 5194 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4115 [inline]
 slab_alloc_node mm/slub.c:4164 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4171
 getname_flags.part.0+0x4c/0x550 fs/namei.c:139
 getname_flags+0x93/0xf0 include/linux/audit.h:322
 do_readlinkat+0xb5/0x390 fs/stat.c:563
 __do_sys_readlink fs/stat.c:601 [inline]
 __se_sys_readlink fs/stat.c:598 [inline]
 __x64_sys_readlink+0x78/0xc0 fs/stat.c:598
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff8880339fe300: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880339fe380: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880339fe400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff8880339fe480: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
 ffff8880339fe500: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
==================================================================