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<000000000000c99ca505b3d525fb@google.com> Subject: memory leak in __usbhid_submit_report From: syzbot To: benjamin.tissoires@redhat.com, jikos@kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: f8394f23 Linux 5.10-rc3 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12ebbdc6500000 kernel config: https://syzkaller.appspot.com/x/.config?x=a3f13716fa0212fd dashboard link: https://syzkaller.appspot.com/bug?extid=47b26cd837ececfc666d compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14497b82500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1586ff14500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+47b26cd837ececfc666d@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff8881097e5ec0 (size 32): comm "kworker/0:1", pid 7, jiffies 4294949214 (age 33.520s) hex dump (first 32 bytes): 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000008296eaa1>] __usbhid_submit_report+0x116/0x490 drivers/hid/usbhid/hid-core.c:588 [<00000000fe39f007>] usbhid_submit_report drivers/hid/usbhid/hid-core.c:638 [inline] [<00000000fe39f007>] usbhid_request+0x59/0xa0 drivers/hid/usbhid/hid-core.c:1272 [<00000000428a854b>] hidinput_led_worker+0x59/0x160 drivers/hid/hid-input.c:1507 [<000000001bb8d86d>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<000000005d9a2f9c>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<00000000dc999b29>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<0000000099d5a9ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff8881120200c0 (size 32): comm "kworker/0:1", pid 7, jiffies 4294949214 (age 33.520s) hex dump (first 32 bytes): 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000008296eaa1>] __usbhid_submit_report+0x116/0x490 drivers/hid/usbhid/hid-core.c:588 [<00000000fe39f007>] usbhid_submit_report drivers/hid/usbhid/hid-core.c:638 [inline] [<00000000fe39f007>] usbhid_request+0x59/0xa0 drivers/hid/usbhid/hid-core.c:1272 [<00000000428a854b>] hidinput_led_worker+0x59/0x160 drivers/hid/hid-input.c:1507 [<000000001bb8d86d>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<000000005d9a2f9c>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<00000000dc999b29>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<0000000099d5a9ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff888107fa9420 (size 32): comm "kworker/0:1", pid 7, jiffies 4294949214 (age 33.520s) hex dump (first 32 bytes): 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000008296eaa1>] __usbhid_submit_report+0x116/0x490 drivers/hid/usbhid/hid-core.c:588 [<00000000fe39f007>] usbhid_submit_report drivers/hid/usbhid/hid-core.c:638 [inline] [<00000000fe39f007>] usbhid_request+0x59/0xa0 drivers/hid/usbhid/hid-core.c:1272 [<00000000428a854b>] hidinput_led_worker+0x59/0x160 drivers/hid/hid-input.c:1507 [<000000001bb8d86d>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<000000005d9a2f9c>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<00000000dc999b29>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<0000000099d5a9ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff888112020b60 (size 32): comm "kworker/1:4", pid 8569, jiffies 4294949237 (age 33.290s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000008296eaa1>] __usbhid_submit_report+0x116/0x490 drivers/hid/usbhid/hid-core.c:588 [<00000000fe39f007>] usbhid_submit_report drivers/hid/usbhid/hid-core.c:638 [inline] [<00000000fe39f007>] usbhid_request+0x59/0xa0 drivers/hid/usbhid/hid-core.c:1272 [<00000000428a854b>] hidinput_led_worker+0x59/0x160 drivers/hid/hid-input.c:1507 [<000000001bb8d86d>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<000000005d9a2f9c>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<00000000dc999b29>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<0000000099d5a9ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff888107fa9a20 (size 32): comm "kworker/1:3", pid 8559, jiffies 4294949241 (age 33.250s) hex dump (first 32 bytes): 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000008296eaa1>] __usbhid_submit_report+0x116/0x490 drivers/hid/usbhid/hid-core.c:588 [<00000000fe39f007>] usbhid_submit_report drivers/hid/usbhid/hid-core.c:638 [inline] [<00000000fe39f007>] usbhid_request+0x59/0xa0 drivers/hid/usbhid/hid-core.c:1272 [<00000000428a854b>] hidinput_led_worker+0x59/0x160 drivers/hid/hid-input.c:1507 [<000000001bb8d86d>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<000000005d9a2f9c>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<00000000dc999b29>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<0000000099d5a9ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff888112020940 (size 32): comm "kworker/1:3", pid 8559, jiffies 4294949241 (age 33.250s) hex dump (first 32 bytes): 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000008296eaa1>] __usbhid_submit_report+0x116/0x490 drivers/hid/usbhid/hid-core.c:588 [<00000000fe39f007>] usbhid_submit_report drivers/hid/usbhid/hid-core.c:638 [inline] [<00000000fe39f007>] usbhid_request+0x59/0xa0 drivers/hid/usbhid/hid-core.c:1272 [<00000000428a854b>] hidinput_led_worker+0x59/0x160 drivers/hid/hid-input.c:1507 [<000000001bb8d86d>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<000000005d9a2f9c>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<00000000dc999b29>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<0000000099d5a9ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 executing program executing program executing program executing program executing program executing program executing program --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches