Hello, syzbot found the following issue on: HEAD commit: 79b00034e9dc Merge tag 'drm-fixes-2022-03-11' of git://ano.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15cf8329700000 kernel config: https://syzkaller.appspot.com/x/.config?x=c9e1a3a8e38b9582 dashboard link: https://syzkaller.appspot.com/bug?extid=b42749a851a47a0f581b compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101cc4ee700000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1270b5e9700000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b42749a851a47a0f581b@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff888103f8fa00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.480s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff 38 c8 26 04 81 88 ff ff @]......8.&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fb00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.480s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff c0 c2 26 04 81 88 ff ff @]........&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fa00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.560s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff 38 c8 26 04 81 88 ff ff @]......8.&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fb00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.560s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff c0 c2 26 04 81 88 ff ff @]........&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fa00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.630s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff 38 c8 26 04 81 88 ff ff @]......8.&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fb00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.630s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff c0 c2 26 04 81 88 ff ff @]........&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fa00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.700s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff 38 c8 26 04 81 88 ff ff @]......8.&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fb00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.700s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff c0 c2 26 04 81 88 ff ff @]........&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fa00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.770s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff 38 c8 26 04 81 88 ff ff @]......8.&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fb00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.770s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff c0 c2 26 04 81 88 ff ff @]........&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fa00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.850s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff 38 c8 26 04 81 88 ff ff @]......8.&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fb00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.850s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff c0 c2 26 04 81 88 ff ff @]........&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fa00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.920s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff 38 c8 26 04 81 88 ff ff @]......8.&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fb00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 503.920s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff c0 c2 26 04 81 88 ff ff @]........&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fa00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 504.000s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff 38 c8 26 04 81 88 ff ff @]......8.&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888103f8fb00 (size 96): comm "kworker/u4:0", pid 8, jiffies 4294937736 (age 504.000s) hex dump (first 32 bytes): 40 5d ca 85 ff ff ff ff c0 c2 26 04 81 88 ff ff @]........&..... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff8228f408>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff8228f408>] kzalloc include/linux/slab.h:714 [inline] [<ffffffff8228f408>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:725 [<ffffffff82285ede>] blkcg_init_queue+0xee/0x1c0 block/blk-cgroup.c:1206 [<ffffffff8224b1aa>] blk_alloc_queue+0x24a/0x4a0 block/blk-core.c:495 [<ffffffff822647a5>] blk_mq_init_queue_data block/blk-mq.c:3883 [inline] [<ffffffff822647a5>] blk_mq_init_queue+0x35/0x90 block/blk-mq.c:3897 [<ffffffff8277f2b1>] scsi_alloc_sdev+0x231/0x3b0 drivers/scsi/scsi_scan.c:330 [<ffffffff82780425>] scsi_probe_and_add_lun+0xff5/0x17e0 drivers/scsi/scsi_scan.c:1167 [<ffffffff827812df>] __scsi_scan_target+0x14f/0x9a0 drivers/scsi/scsi_scan.c:1649 [<ffffffff82781da7>] scsi_scan_channel drivers/scsi/scsi_scan.c:1737 [inline] [<ffffffff82781da7>] scsi_scan_channel+0xb7/0x100 drivers/scsi/scsi_scan.c:1713 [<ffffffff82781faf>] scsi_scan_host_selected+0x1bf/0x220 drivers/scsi/scsi_scan.c:1766 [<ffffffff827820d0>] do_scsi_scan_host+0xc0/0xd0 drivers/scsi/scsi_scan.c:1905 [<ffffffff82782359>] do_scan_async+0x19/0x200 drivers/scsi/scsi_scan.c:1915 [<ffffffff8127cff4>] async_run_entry_fn+0x24/0xf0 kernel/async.c:127 [<ffffffff8126b43f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126bd69>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81275725>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810021ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
