trusted_key: encrypted_key: insufficient parameters specified trusted_key: encrypted_key: insufficient parameters specified ================================================================== BUG: KASAN: slab-use-after-free in constant_test_bit arch/x86/include/asm/bitops.h:206 [inline] BUG: KASAN: slab-use-after-free in arch_test_bit arch/x86/include/asm/bitops.h:238 [inline] BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline] BUG: KASAN: slab-use-after-free in key_put security/keys/key.c:655 [inline] BUG: KASAN: slab-use-after-free in key_put+0x277/0x2a0 security/keys/key.c:646 Read of size 8 at addr ffff88803520cb78 by task syz.1.587/8016 CPU: 0 UID: 0 PID: 8016 Comm: syz.1.587 Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: __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:378 [inline] print_report+0xc3/0x620 mm/kasan/report.c:489 kasan_report+0xd9/0x110 mm/kasan/report.c:602 constant_test_bit arch/x86/include/asm/bitops.h:206 [inline] arch_test_bit arch/x86/include/asm/bitops.h:238 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline] key_put security/keys/key.c:655 [inline] key_put+0x277/0x2a0 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: 0033:0x7f5fd398cda9 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:00007f5fd4870038 EFLAGS: 00000246 ORIG_RAX: 00000000000000f8 RAX: ffffffffffffffda RBX: 00007f5fd3ba6160 RCX: 00007f5fd398cda9 RDX: 0000000020000100 RSI: 0000000020000180 RDI: 0000000020000140 RBP: 00007f5fd3a0e2a0 R08: fffffffffffffffe R09: 0000000000000000 R10: 00000000000000ca R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5fd3ba6160 R15: 00007ffedcd5d358 Allocated by task 8016: 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 5904: 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 ffff88803520ca80 which belongs to the cache key_jar of size 336 The buggy address is located 248 bytes inside of freed 336-byte region [ffff88803520ca80, ffff88803520cbd0) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88803520ddc0 pfn:0x3520c 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 ffff88814040a140 dead000000000122 0000000000000000 raw: ffff88803520ddc0 000000008012000f 00000000f5000000 0000000000000000 head: 00fff00000000040 ffff88814040a140 dead000000000122 0000000000000000 head: ffff88803520ddc0 000000008012000f 00000000f5000000 0000000000000000 head: 00fff00000000001 ffffea0000d48301 ffffffffffffffff 0000000000000000 head: ffff888000000002 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 6486, tgid 6485 (syz.0.166), ts 108749462695, free_ts 107627571356 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 construct_alloc_key security/keys/request_key.c:395 [inline] construct_key_and_link security/keys/request_key.c:515 [inline] request_key_and_link+0x75f/0x1360 security/keys/request_key.c:653 __do_sys_request_key+0x23b/0x3d0 security/keys/keyctl.c:222 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 6468 tgid 6453 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 vfree+0x174/0x950 mm/vmalloc.c:3383 snd_dma_free_pages+0x51/0x70 sound/core/memalloc.c:132 do_free_pages sound/core/pcm_memory.c:88 [inline] do_free_pages sound/core/pcm_memory.c:83 [inline] snd_pcm_lib_free_pages+0x172/0x390 sound/core/pcm_memory.c:495 do_hw_free sound/core/pcm_native.c:894 [inline] snd_pcm_release_substream.part.0+0x2a8/0x340 sound/core/pcm_native.c:2718 snd_pcm_release_substream+0x5b/0x70 sound/core/pcm_native.c:2712 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2398 [inline] snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2390 [inline] snd_pcm_oss_release+0x135/0x310 sound/core/oss/pcm_oss.c:2577 __fput+0x3ff/0xb70 fs/file_table.c:450 task_work_run+0x14e/0x250 kernel/task_work.c:227 get_signal+0x1d3/0x26c0 kernel/signal.c:2809 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff88803520ca00: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88803520ca80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88803520cb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88803520cb80: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc ffff88803520cc00: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb ==================================================================