From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f79.google.com (mail-oo1-f79.google.com [209.85.161.79]) (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 B9BFB4B04BB for ; Fri, 7 Aug 2026 00:02:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.79 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786060953; cv=none; b=q/CKYZ5EY7aGKbeZ1kqdBthnn9XDb4EXTzd7nM8fkwn2ndsbYsv37OTvE5NfG5gY6pgvg8lt60n+kj7DhkcuS1uTQBok9fkuBxDiO5TVJ8sQuVfbZ5pjj1Gqm0VtZanS1nk5wmAIPE6/77pHOLiU8P+qeyd/1miVUcy0z2yC2ZQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786060953; c=relaxed/simple; bh=z2tXnhjE9e1sQO8jaEH+JYwBo2RPBDcsQUQ2mgfd6Ig=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=hadZ+21SJw4avk9ITFgA1jhfmW7EWFmB2toX31REdY00RWHzTstMueNcjEOzxHonHhECc+aIg0jwFg3CH3Y9hyhuAghbee7+CzzpHuNQzhuZy5NGNCjRaQ+J4BJ4/9gY1zEBFP+zD8h9tPRiQggqlY3Qu36GZRC9qyvmMI0aQoE= 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=209.85.161.79 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-oo1-f79.google.com with SMTP id 006d021491bc7-6a313ec13ceso1155641eaf.2 for ; Thu, 06 Aug 2026 17:02:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786060946; x=1786665746; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=3XZ/crxJoplbs1rqNkidwJyW5ffroSRO0+0Frz8Wl6M=; b=B0hWJXvDfZ7dHo3+sPVWCmwrE/jkXqr7WjE1pJskornlpyHqalwZgpSvVbdUvbqZS3 0j4a7G7a3k/gn2UTKK1EyrYhTCeeuK2PwS+tP5cK1jGXdgE8nx+gGQvDheFGsZcSxau9 cihMB3vpKA/vw8HAg8FnrJ6wPKjM3OOUx7S+84XeBlUyG6eRhqkMQalnxMF8YTHKXT4g VHYpZiRvjDX7ZU+aRoQja6+gprxTBfwb7GNt2xxVrt/V4liPSChse6raFG7/HbGiCtS1 NYkxLhfdyyI6NDAJQKc4TM3X7QY4nMZqxNnL/1c8vReBpLFy8kuVriFtrkb36oD0W65f DpWg== X-Forwarded-Encrypted: i=1; AHgh+Rp4Kb5ef8JmFiru2MN4tWAvlIMWi1xEzjPK7oO+Q7W5N10fKYlGz3D0kOIBw6PixGY71Nr3PTU8Lg==@vger.kernel.org X-Gm-Message-State: AOJu0Yxuc8nReSiPgUb6vZ5Rvc2D/PNkhJLlQxTus4iMDJcDBPrW9gXT uoKhxpZ52WsUpZ69BwNAnWlLBBRuV7GjzZgbLvJ9XdYWbr12JlmOasWQWL5a/h4ZD6aDI+aYRmV EjoN3Jw4mfN6jvM/ovzP6pU2x6VuDKGunb6+ArkdHIkxzagvuTEdhz/b/CtQ= Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:a09:b0:6ae:8a52:ffa9 with SMTP id 006d021491bc7-6ae96c17679mr9341349eaf.3.1786060946165; Thu, 06 Aug 2026 17:02:26 -0700 (PDT) Date: Thu, 06 Aug 2026 17:02:26 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a752092.9c11d2ce.289b96.009f.GAE@google.com> Subject: [syzbot] [pm?] inconsistent lock state in lock_sync From: syzbot To: dakr@kernel.org, driver-core@lists.linux.dev, gregkh@linuxfoundation.org, lenb@kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, pavel@kernel.org, rafael@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 848acc8ffe1b Merge tag 'fsverity-for-linus' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1479be32580000 kernel config: https://syzkaller.appspot.com/x/.config?x=145fa60d73086782 dashboard link: https://syzkaller.appspot.com/bug?extid=7b4431d5335ca2d9f771 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/32c9dc084aaa/disk-848acc8f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b7604244b0a9/vmlinux-848acc8f.xz kernel image: https://storage.googleapis.com/syzbot-assets/4cd321f6fe47/bzImage-848acc8f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7b4431d5335ca2d9f771@syzkaller.appspotmail.com RBP: 00007faa6b63500c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007faa6b826038 R14: 00007faa6b825fa0 R15: 00007ffe29482fa8 ================================ WARNING: inconsistent lock state syzkaller #0 Tainted: G W -------------------------------- inconsistent {SOFTIRQ-ON-R} -> {IN-SOFTIRQ-W} usage. syz.4.93/7194 [HC0[0]:SC1[1]:HE1:SE0] takes: ffffffff8fc0ed18 (wakeup_srcu){.+-+}-{0:0}, at: srcu_lock_sync include/linux/srcu.h:199 [inline] ffffffff8fc0ed18 (wakeup_srcu){.+-+}-{0:0}, at: __synchronize_srcu+0x1c/0x300 kernel/rcu/srcutree.c:1481 {SOFTIRQ-ON-R} state was registered at: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 srcu_lock_acquire include/linux/srcu.h:187 [inline] srcu_read_lock include/linux/srcu.h:294 [inline] device_wakeup_arm_wake_irqs+0x53/0x130 drivers/base/power/wakeup.c:401 dpm_suspend_noirq drivers/base/power/main.c:1652 [inline] dpm_suspend_end+0xe5/0x210 drivers/base/power/main.c:1860 create_image kernel/power/hibernate.c:328 [inline] hibernation_snapshot+0x28b/0x9c0 kernel/power/hibernate.c:442 hibernate.cold+0x17c/0x6a2 kernel/power/hibernate.c:811 state_store+0x1ff/0x240 kernel/power/main.c:821 kobj_attr_store+0x58/0x80 lib/kobject.c:840 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6ac/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f irq event stamp: 90148 hardirqs last enabled at (90148): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (90148): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:198 hardirqs last disabled at (90147): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:130 [inline] hardirqs last disabled at (90147): [] _raw_spin_lock_irqsave+0x52/0x60 kernel/locking/spinlock.c:166 softirqs last enabled at (89630): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (89630): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (89630): [] __irq_exit_rcu+0x162/0x210 kernel/softirq.c:735 softirqs last disabled at (89637): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (89637): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (89637): [] __irq_exit_rcu+0x162/0x210 kernel/softirq.c:735 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(wakeup_srcu); lock(wakeup_srcu); *** DEADLOCK *** 8 locks held by syz.4.93/7194: #0: ffff88807ade1430 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x2aa/0x380 fs/file.c:1259 #1: ffff888069482450 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:739 #2: ffff888055791080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:336 #3: ffff88801f2c81e8 (kn->active#61){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:73 [inline] #3: ffff88801f2c81e8 (kn->active#61){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:337 #4: ffffffff8ea9fc80 (system_transition_mutex){+.+.}-{4:4}, at: lock_system_sleep+0x56/0x70 kernel/power/main.c:71 #5: ffffffff8fbf46e0 (device_hotplug_lock){+.+.}-{4:4}, at: hibernate.cold+0x126/0x6a2 kernel/power/hibernate.c:805 #6: ffffffff8f8c6bc0 (acpi_scan_lock){+.+.}-{4:4}, at: acpi_pm_start drivers/acpi/sleep.c:533 [inline] #6: ffffffff8f8c6bc0 (acpi_scan_lock){+.+.}-{4:4}, at: acpi_hibernation_begin+0xf6/0x1c0 drivers/acpi/sleep.c:945 #7: ffffc90000a08ca0 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0x11f/0x610 kernel/time/timer.c:1745 stack backtrace: CPU: 1 UID: 0 PID: 7194 Comm: syz.4.93 Tainted: G W syzkaller #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_usage_bug.part.0+0x257/0x340 kernel/locking/lockdep.c:4042 print_usage_bug kernel/locking/lockdep.c:4010 [inline] valid_state kernel/locking/lockdep.c:4056 [inline] mark_lock_irq kernel/locking/lockdep.c:4273 [inline] mark_lock+0x6b5/0xa20 kernel/locking/lockdep.c:4753 mark_usage kernel/locking/lockdep.c:4642 [inline] __lock_acquire+0xff3/0x1a40 kernel/locking/lockdep.c:5191 lock_sync kernel/locking/lockdep.c:5916 [inline] lock_sync+0x9d/0x110 kernel/locking/lockdep.c:5904 srcu_lock_sync include/linux/srcu.h:199 [inline] __synchronize_srcu+0xa2/0x300 kernel/rcu/srcutree.c:1481 wakeup_source_remove drivers/base/power/wakeup.c:201 [inline] wakeup_source_unregister.part.0+0x12c/0x540 drivers/base/power/wakeup.c:237 wakeup_source_unregister+0x1f/0x30 drivers/base/power/wakeup.c:236 mmc_host_classdev_release+0x42/0x120 drivers/mmc/core/host.c:69 device_release+0xd2/0x270 drivers/base/core.c:2636 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1f7/0x640 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3880 vub300_delete drivers/mmc/host/vub300.c:379 [inline] kref_put include/linux/kref.h:65 [inline] vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline] vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742 call_timer_fn+0x19a/0x610 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers+0x757/0xb00 kernel/time/timer.c:2374 __run_timer_base kernel/time/timer.c:2386 [inline] __run_timer_base kernel/time/timer.c:2378 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2395 run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405 handle_softirqs+0x1ea/0x9b0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x162/0x210 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:198 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 f6 d0 27 f6 48 89 df e8 7e 20 28 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 05 2e 17 f6 65 8b 05 4e 57 a6 08 85 c0 74 16 5b RSP: 0018:ffffc9000500fb10 EFLAGS: 00000246 RAX: 0000000000000006 RBX: ffff88823fff8740 RCX: 0000000000000040 RDX: 0000000000000000 RSI: ffffffff8e1a8186 RDI: ffffffff8c402680 RBP: 0000000000000246 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000140001 R13: 00000000000a8d20 R14: ffffffff81e6a290 R15: 0000000000000005 mark_free_pages kernel/power/snapshot.c:1252 [inline] count_data_pages+0x7d/0xf0 kernel/power/snapshot.c:1417 hibernate_preallocate_memory+0x104/0x507 kernel/power/snapshot.c:1859 hibernation_snapshot+0x1e6/0x9c0 kernel/power/hibernate.c:430 hibernate.cold+0x17c/0x6a2 kernel/power/hibernate.c:811 state_store+0x1ff/0x240 kernel/power/main.c:821 kobj_attr_store+0x58/0x80 lib/kobject.c:840 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6ac/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faa6b59e019 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007faa6c4cf028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007faa6b825fa0 RCX: 00007faa6b59e019 RDX: 0000000000000005 RSI: 0000200000000100 RDI: 0000000000000003 RBP: 00007faa6b63500c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007faa6b826038 R14: 00007faa6b825fa0 R15: 00007ffe29482fa8 ODEBUG: object ffffc90000a08a70 is NOT on stack ffffc90005008000, but annotated. ------------[ cut here ]------------ 1 WARNING: lib/debugobjects.c:672 at debug_object_is_on_stack lib/debugobjects.c:672 [inline], CPU#1: syz.4.93/7194 WARNING: lib/debugobjects.c:672 at lookup_object_or_alloc.part.0.cold+0x19/0x40 lib/debugobjects.c:705, CPU#1: syz.4.93/7194 Modules linked in: CPU: 1 UID: 0 PID: 7194 Comm: syz.4.93 Tainted: G W syzkaller #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 RIP: 0010:debug_object_is_on_stack lib/debugobjects.c:672 [inline] RIP: 0010:lookup_object_or_alloc.part.0.cold+0x19/0x40 lib/debugobjects.c:705 Code: c4 60 5b 5d 41 5c 41 5d 41 5e 41 5f e9 49 18 88 0a 83 c5 01 89 2d 20 43 57 1a 4c 89 e6 48 c7 c7 c0 31 40 8c e8 f1 ef eb ff 90 <0f> 0b 90 e9 d2 03 f1 03 83 c5 01 89 2d ff 42 57 1a 49 39 c4 73 da RSP: 0018:ffffc90000a08900 EFLAGS: 00010086 RAX: 0000000000000050 RBX: ffff888076281508 RCX: 0000000000000000 RDX: 0000000000000050 RSI: ffffffff81e8afd9 RDI: fffff52000141111 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000102 R11: 205d314320202020 R12: ffffc90000a08a70 R13: ffff888033bc0000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007faa6c4cf6c0(0000) GS:ffff888123ed8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000000 CR3: 00000000618ef000 CR4: 00000000003526f0 Call Trace: lookup_object_or_alloc lib/debugobjects.c:682 [inline] __debug_object_init+0x2a9/0x3d0 lib/debugobjects.c:798 __synchronize_srcu+0x1c3/0x300 kernel/rcu/srcutree.c:1494 wakeup_source_remove drivers/base/power/wakeup.c:201 [inline] wakeup_source_unregister.part.0+0x12c/0x540 drivers/base/power/wakeup.c:237 wakeup_source_unregister+0x1f/0x30 drivers/base/power/wakeup.c:236 mmc_host_classdev_release+0x42/0x120 drivers/mmc/core/host.c:69 device_release+0xd2/0x270 drivers/base/core.c:2636 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1f7/0x640 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3880 vub300_delete drivers/mmc/host/vub300.c:379 [inline] kref_put include/linux/kref.h:65 [inline] vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline] vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742 call_timer_fn+0x19a/0x610 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers+0x757/0xb00 kernel/time/timer.c:2374 __run_timer_base kernel/time/timer.c:2386 [inline] __run_timer_base kernel/time/timer.c:2378 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2395 run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405 handle_softirqs+0x1ea/0x9b0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x162/0x210 kernel/softirq.c:735 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:198 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 f6 d0 27 f6 48 89 df e8 7e 20 28 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 05 2e 17 f6 65 8b 05 4e 57 a6 08 85 c0 74 16 5b RSP: 0018:ffffc9000500fb10 EFLAGS: 00000246 RAX: 0000000000000006 RBX: ffff88823fff8740 RCX: 0000000000000040 RDX: 0000000000000000 RSI: ffffffff8e1a8186 RDI: ffffffff8c402680 RBP: 0000000000000246 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000140001 R13: 00000000000a8d20 R14: ffffffff81e6a290 R15: 0000000000000005 mark_free_pages kernel/power/snapshot.c:1252 [inline] count_data_pages+0x7d/0xf0 kernel/power/snapshot.c:1417 hibernate_preallocate_memory+0x104/0x507 kernel/power/snapshot.c:1859 hibernation_snapshot+0x1e6/0x9c0 kernel/power/hibernate.c:430 hibernate.cold+0x17c/0x6a2 kernel/power/hibernate.c:811 state_store+0x1ff/0x240 kernel/power/main.c:821 kobj_attr_store+0x58/0x80 lib/kobject.c:840 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6ac/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7faa6b59e019 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007faa6c4cf028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007faa6b825fa0 RCX: 00007faa6b59e019 RDX: 0000000000000005 RSI: 0000200000000100 RDI: 0000000000000003 RBP: 00007faa6b63500c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007faa6b826038 R14: 00007faa6b825fa0 R15: 00007ffe29482fa8 ---------------- 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 f6 d0 27 f6 call 0xf627d109 13: 48 89 df mov %rbx,%rdi 16: e8 7e 20 28 f6 call 0xf6282099 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 05 2e 17 f6 call 0xf6172e39 34: 65 8b 05 4e 57 a6 08 mov %gs:0x8a6574e(%rip),%eax # 0x8a65789 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 syzkaller@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