From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f80.google.com (mail-ot1-f80.google.com [209.85.210.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8E88B1F8BD6 for ; Sun, 18 Jan 2026 21:29:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768771751; cv=none; b=WOhvB49D2AIB2eXhdK89lumm82sR8mglk0o1iJZLfB/clJQPqtuulGyzsNW1F/qWMyKaHO1alfe+T1TFewrvWbtmk83n6nMxmkQ0gCd9EUiwE6cqNVZrqNpxX2U2++5lVPnP7BfS3JwzKGW97tkkcR/K6TccaIxlCfgGu/YYAqw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768771751; c=relaxed/simple; bh=5OwO3gO7XfIP7x4vFfJc3ib84YQ6rgPMnXT32TPOWnk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=qOk8FBS8IPkK2FrS3AzDamvwAjXdirZu+OFGXhvRUNWjJ9KOzQf0tXZJLStJBhPBLAguOfywacJTr9pRlUOop6Js5wm4p0pJBpWvvneNgSN22S2hTy07joH1zxq0ITfxErkNRVjgpvOH0NR6ftyke8eTxhWO4a6kaAeamb8PxMQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.210.80 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-ot1-f80.google.com with SMTP id 46e09a7af769-7d11b35e8acso6846131a34.0 for ; Sun, 18 Jan 2026 13:29:09 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768771748; x=1769376548; h=cc:to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ExDOYkXYUgrrQROzPkQtKf1ACXM59TLQ6adKKh5dQAM=; b=CX9gjTNV6s9fcyEKKci5xtkzC/YyiDJr5C2d5utzmZpekWg/MKD+YO2DPdy3S4KCUm 0N6VNURhQC8N4MljFksRO3ee/GHPKFzbbBKrNFgPa3tINb+bcd6eyfympTbKkymZ3QxF OFXpCf41CYxKy4ltHKQ7Pli82mhoNzvNrAv+y7XRLyWHRV1k90FXQyh/TCJMoGpULO6Z 3pCj3IyNhax8srqBvlpWS1Up22FTCAD0KE4/zAVBojjcSb5eeO69jxQS8IEqM5ER1ecU 7gXTxgQNdnLSZX693mPnvLe8M47gSxQe15trS8CbM7i0vpusA3RswCN9IQFUkIe+/8OC dNnQ== X-Forwarded-Encrypted: i=1; AJvYcCWjcGKUBCJzKlHMVEuiIVKstflvdby2u+gSclwf7N2my7+de2ArMUx7h81Z8QIw+dCfIo7Xh3aXgS1lMVs=@vger.kernel.org X-Gm-Message-State: AOJu0Yw49IXxztkBrHzZ7gcMYH1Qb8iu7JSSHRxe/mKIXYipecwXrC5R y3vQJ/ev0Z3LmMS1oz6ej0VDJYHXj5M0NEHe0iaUkw+tHz092uXJ+OJFI0lUF27EeRiqMcYFNz1 dMC8/QpuxHwtdwu5aFSkoK3CnZZOEL9CN6CvLjdcvKlKji6Q0oYPxovPeyuQ= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:168d:b0:65e:a61c:2480 with SMTP id 006d021491bc7-661179ee031mr3593908eaf.77.1768771748560; Sun, 18 Jan 2026 13:29:08 -0800 (PST) Date: Sun, 18 Jan 2026 13:29:08 -0800 In-Reply-To: <9fafd6b9-c683-4173-9a30-e79a8565feb3n@googlegroups.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <696d50a4.a70a0220.34546f.0338.GAE@google.com> Subject: Re: Private message regarding: [syzbot] [mm?] KASAN: slab-use-after-free Read in lookup_object_or_alloc (3) From: syzbot To: kapoorarnav43@gmail.com Cc: kapoorarnav43@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > From: Arnav Kapoor > Date: Sun, 12 Jan 2026 17:50:00 +0000 > Subject: [PATCH] timer: add virt_addr_valid check in timer_is_static_object > > Syzbot reported a KASAN slab-use-after-free in lookup_object_or_alloc > when timer_is_static_object() accesses freed timer memory. > > #syz test > > The issue occurs when debug_object_activate() is called on a timer address > that points to freed memory. The timer_is_static_object() function tries > to check timer->entry.pprev and timer->entry.next to determine if the > timer is static, but these accesses are invalid if the memory has been > freed and potentially reused. > > Add a virt_addr_valid() check before accessing the timer structure to > prevent use-after-free accesses. If the address is not valid, return > false to indicate it's not a static timer. > > Reported-by: syzbot+62360d4b8e8c4b8b8f6a@syzkaller.appspotmail.com > Closes: https://syzkaller.appspot.com/bug?extid=62360d4b8e8c4b8b8f6a > Signed-off-by: Arnav Kapoor > --- > diff --git a/kernel/time/timer.c b/kernel/time/timer.c > index 1f2364126..e139e413a 100644 > --- a/kernel/time/timer.c > +++ b/kernel/time/timer.c > @@ -688,6 +688,9 @@ static bool timer_is_static_object(void *addr) > { > struct timer_list *timer = addr; > > + if (!virt_addr_valid(timer)) > + return false; > + > return (timer->entry.pprev == NULL && > timer->entry.next == TIMER_ENTRY_STATIC); > } > > On Friday, 16 January 2026 at 02:18:22 UTC+5:30 syzbot wrote: > > Hello, > > syzbot found the following issue on: > > HEAD commit: 79b95d74470d Merge tag 'hid-for-linus-2026010801' of git:/.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=11895f92580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=a11e0f726bfb6765 > dashboard link: https://syzkaller.appspot.com/bug?extid=62360d745376b40120b5 > compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for > Debian) 2.40 > > Unfortunately, I don't have any reproducer for this issue yet. > > Downloadable assets: > disk image: > https://storage.googleapis.com/syzbot-assets/4d234fb6afe1/disk-79b95d74.raw.xz > vmlinux: > https://storage.googleapis.com/syzbot-assets/bb336424f007/vmlinux-79b95d74.xz > kernel image: > https://storage.googleapis.com/syzbot-assets/e8dee85fdda1/bzImage-79b95d74.xz > > IMPORTANT: if you fix the issue, please add the following tag to the > commit: > Reported-by: syzbot+62360d...@syzkaller.appspotmail.com > > ================================================================== > BUG: KASAN: slab-use-after-free in timer_is_static_object+0x80/0x90 > kernel/time/timer.c:691 > Read of size 8 at addr ffff88807e5e8498 by task syz.4.6813/32052 > > CPU: 1 UID: 0 PID: 32052 Comm: syz.4.6813 Tainted: G L syzkaller #0 > PREEMPT(full) > Tainted: [L]=SOFTLOCKUP > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 10/25/2025 > 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+0xcd/0x630 mm/kasan/report.c:482 > kasan_report+0xe0/0x110 mm/kasan/report.c:595 > timer_is_static_object+0x80/0x90 kernel/time/timer.c:691 > lookup_object_or_alloc.part.0+0x420/0x590 lib/debugobjects.c:679 > lookup_object_or_alloc lib/debugobjects.c:665 [inline] > debug_object_activate+0x326/0x4c0 lib/debugobjects.c:820 > debug_timer_activate kernel/time/timer.c:793 [inline] > __mod_timer+0x814/0xd30 kernel/time/timer.c:1124 > add_timer+0x62/0x90 kernel/time/timer.c:1249 > call_timer_fn+0x19a/0x5a0 kernel/time/timer.c:1748 > expire_timers kernel/time/timer.c:1799 [inline] > __run_timers+0x74a/0xae0 kernel/time/timer.c:2373 > __run_timer_base kernel/time/timer.c:2385 [inline] > __run_timer_base kernel/time/timer.c:2377 [inline] > run_timer_base+0x114/0x190 kernel/time/timer.c:2394 > run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2404 > handle_softirqs+0x219/0x950 kernel/softirq.c:622 > __do_softirq kernel/softirq.c:656 [inline] > invoke_softirq kernel/softirq.c:496 [inline] > __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723 > irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 > instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] > sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1056 > > > asm_sysvec_apic_timer_interrupt+0x1a/0x20 > arch/x86/include/asm/idtentry.h:697 > RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 > [inline] > RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 > kernel/locking/spinlock.c:194 > Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 16 fe 1e f6 48 89 df e8 > ce 50 1f f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 > e8 d5 53 0f f6 65 8b 05 2e b9 37 08 85 c0 74 16 5b > RSP: 0018:ffffc90005137760 EFLAGS: 00000246 > RAX: 0000000000000006 RBX: ffff88803400d880 RCX: 0000000000000006 > RDX: 0000000000000000 RSI: ffffffff8dace187 RDI: ffffffff8bf2b380 > RBP: 0000000000000246 R08: 0000000000000001 R09: 0000000000000001 > R10: ffffffff9088b8d7 R11: ffff888046ec54b0 R12: ffff888022b76000 > R13: 0000000000000246 R14: ffff88803400d868 R15: ffffc900051378e8 > spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] > __skb_try_recv_datagram+0x172/0x4f0 net/core/datagram.c:267 > __unix_dgram_recvmsg+0x1bc/0xc30 net/unix/af_unix.c:2576 > unix_dgram_recvmsg+0xd0/0x110 net/unix/af_unix.c:2675 > sock_recvmsg_nosec net/socket.c:1078 [inline] > ____sys_recvmsg+0x5f9/0x6b0 net/socket.c:2810 > ___sys_recvmsg+0x114/0x1a0 net/socket.c:2854 > do_recvmmsg+0x2fe/0x750 net/socket.c:2949 > __sys_recvmmsg net/socket.c:3023 [inline] > __do_sys_recvmmsg net/socket.c:3046 [inline] > __se_sys_recvmmsg net/socket.c:3039 [inline] > __x64_sys_recvmmsg+0x22a/0x280 net/socket.c:3039 > do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] > do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 > entry_SYSCALL_64_after_hwframe+0x77/0x7f > RIP: 0033:0x7fdc3eb8f749 > 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:00007fdc3f959038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b > RAX: ffffffffffffffda RBX: 00007fdc3ede6090 RCX: 00007fdc3eb8f749 > RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005 > RBP: 00007fdc3ec13f91 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 > R13: 00007fdc3ede6128 R14: 00007fdc3ede6090 R15: 00007ffd6a8a5748 > > > Allocated by task 29852: > kasan_save_stack+0x33/0x60 mm/kasan/common.c:57 > kasan_save_track+0x14/0x30 mm/kasan/common.c:78 > poison_kmalloc_redzone mm/kasan/common.c:398 [inline] > __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415 > kmalloc_noprof include/linux/slab.h:957 [inline] > rose_add_node net/rose/rose_route.c:85 [inline] > rose_rt_ioctl+0x880/0x2580 net/rose/rose_route.c:748 > rose_ioctl+0x64d/0x7c0 net/rose/af_rose.c:1382 > sock_do_ioctl+0x118/0x280 net/socket.c:1254 > sock_ioctl+0x227/0x6b0 net/socket.c:1375 > vfs_ioctl fs/ioctl.c:51 [inline] > __do_sys_ioctl fs/ioctl.c:597 [inline] > __se_sys_ioctl fs/ioctl.c:583 [inline] > __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 > do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] > do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 > entry_SYSCALL_64_after_hwframe+0x77/0x7f > > Freed by task 32051: > kasan_save_stack+0x33/0x60 mm/kasan/common.c:57 > kasan_save_track+0x14/0x30 mm/kasan/common.c:78 > kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:584 > poison_slab_object mm/kasan/common.c:253 [inline] > __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285 > kasan_slab_free include/linux/kasan.h:235 [inline] > slab_free_hook mm/slub.c:2540 [inline] > slab_free mm/slub.c:6670 [inline] > kfree+0x2f8/0x6e0 mm/slub.c:6878 > rose_neigh_put include/net/rose.h:166 [inline] > rose_timer_expiry+0x53f/0x630 net/rose/rose_timer.c:183 > call_timer_fn+0x19a/0x5a0 kernel/time/timer.c:1748 > expire_timers kernel/time/timer.c:1799 [inline] > __run_timers+0x74a/0xae0 kernel/time/timer.c:2373 > __run_timer_base kernel/time/timer.c:2385 [inline] > __run_timer_base kernel/time/timer.c:2377 [inline] > run_timer_base+0x114/0x190 kernel/time/timer.c:2394 > run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2404 > handle_softirqs+0x219/0x950 kernel/softirq.c:622 > __do_softirq kernel/softirq.c:656 [inline] > invoke_softirq kernel/softirq.c:496 [inline] > __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723 > irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 > instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] > sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1056 > asm_sysvec_apic_timer_interrupt+0x1a/0x20 > arch/x86/include/asm/idtentry.h:697 > > The buggy address belongs to the object at ffff88807e5e8400 > which belongs to the cache kmalloc-512 of size 512 > The buggy address is located 152 bytes inside of > freed 512-byte region [ffff88807e5e8400, ffff88807e5e8600) > > The buggy address belongs to the physical page: > page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7e5e8 > head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 > ksm flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) > page_type: f5(slab) > raw: 00fff00000000040 ffff88813ff26c80 ffffea0000a54f00 dead000000000003 > raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 > head: 00fff00000000040 ffff88813ff26c80 ffffea0000a54f00 dead000000000003 > head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 > head: 00fff00000000002 ffffea0001f97a01 00000000ffffffff 00000000ffffffff > head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 > page dumped because: kasan: bad access detected > page_owner tracks the page as allocated > page last allocated via order 2, migratetype Unmovable, gfp_mask > 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), > pid 29165, tgid 29165 (syz-executor), ts 2066518998187, free_ts > 1956315063990 > set_page_owner include/linux/page_owner.h:32 [inline] > post_alloc_hook+0x1af/0x220 mm/page_alloc.c:1857 > prep_new_page mm/page_alloc.c:1865 [inline] > get_page_from_freelist+0xd0b/0x31a0 mm/page_alloc.c:3915 > __alloc_frozen_pages_noprof+0x25f/0x2430 mm/page_alloc.c:5210 > alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2486 > alloc_slab_page mm/slub.c:3075 [inline] > allocate_slab mm/slub.c:3248 [inline] > new_slab+0x2c3/0x430 mm/slub.c:3302 > ___slab_alloc+0xe18/0x1c90 mm/slub.c:4656 > __slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4779 > __slab_alloc_node mm/slub.c:4855 [inline] > slab_alloc_node mm/slub.c:5251 [inline] > __do_kmalloc_node mm/slub.c:5656 [inline] > __kmalloc_noprof+0x4fc/0x910 mm/slub.c:5669 > kmalloc_noprof include/linux/slab.h:961 [inline] > kzalloc_noprof include/linux/slab.h:1094 [inline] > fib6_info_alloc+0x40/0x160 net/ipv6/ip6_fib.c:155 > ip6_route_info_create+0x14c/0xaa0 net/ipv6/route.c:3820 > ip6_route_add.part.0+0x22/0x1d0 net/ipv6/route.c:3949 > ip6_route_add+0x45/0x60 net/ipv6/route.c:3946 > addrconf_add_mroute+0x1dd/0x350 net/ipv6/addrconf.c:2552 > addrconf_add_dev+0x14e/0x1a0 net/ipv6/addrconf.c:2570 > inet6_addr_add+0xfe/0x9b0 net/ipv6/addrconf.c:3032 > inet6_rtm_newaddr+0x1619/0x1c50 net/ipv6/addrconf.c:5059 > page last free pid 27669 tgid 27669 stack trace: > reset_page_owner include/linux/page_owner.h:25 [inline] > free_pages_prepare mm/page_alloc.c:1406 [inline] > __free_frozen_pages+0x7df/0x1170 mm/page_alloc.c:2943 > __pagetable_free include/linux/mm.h:3200 [inline] > pagetable_free include/linux/mm.h:3224 [inline] > pagetable_dtor_free include/linux/mm.h:3328 [inline] > __tlb_remove_table include/asm-generic/tlb.h:220 [inline] > __tlb_remove_table_free mm/mmu_gather.c:227 [inline] > tlb_remove_table_rcu+0x2b2/0x390 mm/mmu_gather.c:290 > rcu_do_batch kernel/rcu/tree.c:2605 [inline] > rcu_core+0x79c/0x15f0 kernel/rcu/tree.c:2857 > handle_softirqs+0x219/0x950 kernel/softirq.c:622 > __do_softirq kernel/softirq.c:656 [inline] > invoke_softirq kernel/softirq.c:496 [inline] > __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723 > irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 > instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] > sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1056 > asm_sysvec_apic_timer_interrupt+0x1a/0x20 > arch/x86/include/asm/idtentry.h:697 > > Memory state around the buggy address: > ffff88807e5e8380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc > ffff88807e5e8400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >>ffff88807e5e8480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb > ^ > ffff88807e5e8500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb > ffff88807e5e8580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb > ================================================================== > ---------------- > Code disassembly (best guess): > 0: f5 cmc > 1: 53 push %rbx > 2: 48 8b 74 24 10 mov 0x10(%rsp),%rsi > 7: 48 89 fb mov %rdi,%rbx > a: 48 83 c7 18 add $0x18,%rdi > e: e8 16 fe 1e f6 call 0xf61efe29 > 13: 48 89 df mov %rbx,%rdi > 16: e8 ce 50 1f f6 call 0xf61f50e9 > 1b: f7 c5 00 02 00 00 test $0x200,%ebp > 21: 75 23 jne 0x46 > 23: 9c pushf > 24: 58 pop %rax > 25: f6 c4 02 test $0x2,%ah > 28: 75 37 jne 0x61 > * 2a: bf 01 00 00 00 mov $0x1,%edi <-- trapping instruction > 2f: e8 d5 53 0f f6 call 0xf60f5409 > 34: 65 8b 05 2e b9 37 08 mov %gs:0x837b92e(%rip),%eax # 0x837b969 > 3b: 85 c0 test %eax,%eax > 3d: 74 16 je 0x55 > 3f: 5b pop %rbx > > > --- > This report is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzk...@googlegroups.com. > > syzbot will keep track of this issue. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > > If the report is already addressed, let syzbot know by replying with: > #syz fix: exact-commit-title > > If you want to overwrite report's subsystems, reply with: > #syz set subsystems: new-subsystem > (See the list of subsystem names on the web dashboard) > > If the report is a duplicate of another one, reply with: > #syz dup: exact-subject-of-another-report > > If you want to undo deduplication, reply with: > #syz undup > Command #1: This crash does not have a reproducer. I cannot test it.