Warning: Permanently added '10.128.10.35' (ECDSA) to the list of known hosts.
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syzkaller login: [ 53.469315][ T3633] ==================================================================
[ 53.477413][ T3633] BUG: KASAN: use-after-free in kill_fasync+0x45e/0x470
[ 53.484364][ T3633] Read of size 8 at addr ffff88807966e168 by task kworker/1:3/3633
[ 53.492254][ T3633]
[ 53.494576][ T3633] CPU: 1 PID: 3633 Comm: kworker/1:3 Not tainted 5.19.0-rc5-syzkaller-00187-ge8a4e1c1bb69 #0
[ 53.504728][ T3633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
[ 53.514785][ T3633] Workqueue: events key_garbage_collector
[ 53.520516][ T3633] Call Trace:
[ 53.523793][ T3633]
[ 53.526724][ T3633] dump_stack_lvl+0xcd/0x134
[ 53.531336][ T3633] print_address_description.constprop.0.cold+0xeb/0x495
[ 53.538369][ T3633] ? kill_fasync+0x45e/0x470
[ 53.542967][ T3633] kasan_report.cold+0xf4/0x1c6
[ 53.547858][ T3633] ? kill_fasync+0x45e/0x470
[ 53.552456][ T3633] kill_fasync+0x45e/0x470
[ 53.556878][ T3633] post_one_notification.isra.0+0x6e4/0x990
[ 53.562781][ T3633] remove_watch_from_object+0x35a/0x9d0
[ 53.568338][ T3633] ? __post_watch_notification+0x840/0x840
[ 53.574150][ T3633] ? do_raw_spin_lock+0x120/0x2a0
[ 53.579184][ T3633] key_gc_unused_keys.constprop.0+0x2e5/0x600
[ 53.585260][ T3633] key_garbage_collector+0x3d7/0x920
[ 53.590553][ T3633] process_one_work+0x996/0x1610
[ 53.595497][ T3633] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 53.600877][ T3633] ? rwlock_bug.part.0+0x90/0x90
[ 53.605814][ T3633] ? _raw_spin_lock_irq+0x41/0x50
[ 53.610845][ T3633] worker_thread+0x665/0x1080
[ 53.615534][ T3633] ? __kthread_parkme+0x15f/0x220
[ 53.620579][ T3633] ? process_one_work+0x1610/0x1610
[ 53.625787][ T3633] kthread+0x2e9/0x3a0
[ 53.629858][ T3633] ? kthread_complete_and_exit+0x40/0x40
[ 53.635498][ T3633] ret_from_fork+0x1f/0x30
[ 53.639928][ T3633]
[ 53.642945][ T3633]
[ 53.645264][ T3633] Allocated by task 3628:
[ 53.649586][ T3633] kasan_save_stack+0x1e/0x40
[ 53.654276][ T3633] __kasan_kmalloc+0xa9/0xd0
[ 53.658872][ T3633] alloc_pipe_info+0x105/0x590
[ 53.663730][ T3633] create_pipe_files+0x8d/0x880
[ 53.668593][ T3633] do_pipe2+0x96/0x1b0
[ 53.672675][ T3633] __x64_sys_pipe2+0x50/0x70
[ 53.677370][ T3633] do_syscall_64+0x35/0xb0
[ 53.681801][ T3633] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 53.687711][ T3633]
[ 53.690029][ T3633] Freed by task 3628:
[ 53.694005][ T3633] kasan_save_stack+0x1e/0x40
[ 53.698689][ T3633] kasan_set_track+0x21/0x30
[ 53.703286][ T3633] kasan_set_free_info+0x20/0x30
[ 53.708331][ T3633] ____kasan_slab_free+0x166/0x1a0
[ 53.713461][ T3633] slab_free_freelist_hook+0x8b/0x1c0
[ 53.718858][ T3633] kfree+0xd6/0x4d0
[ 53.722683][ T3633] pipe_release+0x2b6/0x310
[ 53.727232][ T3633] __fput+0x277/0x9d0
[ 53.731219][ T3633] task_work_run+0xdd/0x1a0
[ 53.735725][ T3633] exit_to_user_mode_prepare+0x23c/0x250
[ 53.741360][ T3633] syscall_exit_to_user_mode+0x19/0x50
[ 53.746824][ T3633] do_syscall_64+0x42/0xb0
[ 53.751245][ T3633] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 53.757153][ T3633]
[ 53.759473][ T3633] The buggy address belongs to the object at ffff88807966e000
[ 53.759473][ T3633] which belongs to the cache kmalloc-cg-512 of size 512
[ 53.773790][ T3633] The buggy address is located 360 bytes inside of
[ 53.773790][ T3633] 512-byte region [ffff88807966e000, ffff88807966e200)
[ 53.787075][ T3633]
[ 53.789394][ T3633] The buggy address belongs to the physical page:
[ 53.795802][ T3633] page:ffffea0001e59b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7966c
[ 53.805955][ T3633] head:ffffea0001e59b00 order:2 compound_mapcount:0 compound_pincount:0
[ 53.814370][ T3633] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[ 53.822361][ T3633] raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888011842dc0
[ 53.830951][ T3633] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
[ 53.839533][ T3633] page dumped because: kasan: bad access detected
[ 53.845940][ T3633] page_owner tracks the page as allocated
[ 53.851645][ T3633] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 3621, tgid 3621 (syz-executor156), ts 53365599933, free_ts 17943105835
[ 53.873282][ T3633] get_page_from_freelist+0x1290/0x3b70
[ 53.878840][ T3633] __alloc_pages+0x1c7/0x510
[ 53.883433][ T3633] alloc_pages+0x1aa/0x310
[ 53.887852][ T3633] allocate_slab+0x26c/0x3c0
[ 53.892448][ T3633] ___slab_alloc+0x9c4/0xe20
[ 53.897046][ T3633] __slab_alloc.constprop.0+0x4d/0xa0
[ 53.902430][ T3633] kmem_cache_alloc_trace+0x310/0x3f0
[ 53.907822][ T3633] alloc_pipe_info+0x105/0x590
[ 53.912616][ T3633] create_pipe_files+0x8d/0x880
[ 53.917511][ T3633] do_pipe2+0x96/0x1b0
[ 53.921600][ T3633] __x64_sys_pipe2+0x50/0x70
[ 53.926218][ T3633] do_syscall_64+0x35/0xb0
[ 53.930640][ T3633] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 53.936536][ T3633] page last free stack trace:
[ 53.941202][ T3633] free_pcp_prepare+0x549/0xd20
[ 53.946054][ T3633] free_unref_page+0x19/0x6a0
[ 53.950733][ T3633] __unfreeze_partials+0x17c/0x1a0
[ 53.955850][ T3633] qlist_free_all+0x6a/0x170
[ 53.960442][ T3633] kasan_quarantine_reduce+0x180/0x200
[ 53.965998][ T3633] __kasan_slab_alloc+0xa2/0xc0
[ 53.970951][ T3633] kmem_cache_alloc_trace+0x26d/0x3f0
[ 53.976344][ T3633] kernfs_fop_open+0x317/0xda0
[ 53.981121][ T3633] do_dentry_open+0x4a1/0x11f0
[ 53.985894][ T3633] path_openat+0x1c71/0x2910
[ 53.990484][ T3633] do_filp_open+0x1aa/0x400
[ 53.994993][ T3633] do_sys_openat2+0x16d/0x4c0
[ 53.999678][ T3633] __x64_sys_openat+0x13f/0x1f0
[ 54.004531][ T3633] do_syscall_64+0x35/0xb0
[ 54.008965][ T3633] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 54.014863][ T3633]
[ 54.017184][ T3633] Memory state around the buggy address:
[ 54.022808][ T3633] ffff88807966e000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 54.030872][ T3633] ffff88807966e080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 54.038932][ T3633] >ffff88807966e100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 54.046990][ T3633] ^
[ 54.054533][ T3633] ffff88807966e180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 54.062595][ T3633] ffff88807966e200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
executing program
[ 54.070824][ T3633] ==================================================================
[ 54.086196][ T3633] Kernel panic - not syncing: panic_on_warn set ...
[ 54.092806][ T3633] CPU: 1 PID: 3633 Comm: kworker/1:3 Not tainted 5.19.0-rc5-syzkaller-00187-ge8a4e1c1bb69 #0
[ 54.102943][ T3633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
[ 54.113162][ T3633] Workqueue: events key_garbage_collector
[ 54.118874][ T3633] Call Trace:
[ 54.122145][ T3633]
[ 54.125076][ T3633] dump_stack_lvl+0xcd/0x134
[ 54.129671][ T3633] panic+0x2d7/0x636
[ 54.133555][ T3633] ? panic_print_sys_info.part.0+0x10b/0x10b
[ 54.139526][ T3633] ? preempt_schedule_common+0x59/0xc0
[ 54.145007][ T3633] ? kill_fasync+0x45e/0x470
[ 54.149585][ T3633] ? preempt_schedule_thunk+0x16/0x18
[ 54.154948][ T3633] ? kill_fasync+0x45e/0x470
[ 54.159527][ T3633] end_report.part.0+0x3f/0x7c
[ 54.164298][ T3633] kasan_report.cold+0x93/0x1c6
[ 54.169155][ T3633] ? kill_fasync+0x45e/0x470
[ 54.173736][ T3633] kill_fasync+0x45e/0x470
[ 54.178144][ T3633] post_one_notification.isra.0+0x6e4/0x990
[ 54.184031][ T3633] remove_watch_from_object+0x35a/0x9d0
[ 54.189666][ T3633] ? __post_watch_notification+0x840/0x840
[ 54.195479][ T3633] ? do_raw_spin_lock+0x120/0x2a0
[ 54.200508][ T3633] key_gc_unused_keys.constprop.0+0x2e5/0x600
[ 54.206586][ T3633] key_garbage_collector+0x3d7/0x920
[ 54.211893][ T3633] process_one_work+0x996/0x1610
[ 54.216838][ T3633] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 54.222250][ T3633] ? rwlock_bug.part.0+0x90/0x90
[ 54.227186][ T3633] ? _raw_spin_lock_irq+0x41/0x50
[ 54.232218][ T3633] worker_thread+0x665/0x1080
[ 54.236906][ T3633] ? __kthread_parkme+0x15f/0x220
[ 54.241928][ T3633] ? process_one_work+0x1610/0x1610
[ 54.247134][ T3633] kthread+0x2e9/0x3a0
[ 54.251204][ T3633] ? kthread_complete_and_exit+0x40/0x40
[ 54.256835][ T3633] ret_from_fork+0x1f/0x30
[ 54.261272][ T3633]
[ 54.264711][ T3633] Kernel Offset: disabled
[ 54.269051][ T3633] Rebooting in 86400 seconds..