Hello, syzbot found the following issue on: HEAD commit: 407ab579 Merge tag 'for-linus' of git://git.kernel.org/pub.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=134dd026500000 kernel config: https://syzkaller.appspot.com/x/.config?x=a3f13716fa0212fd dashboard link: https://syzkaller.appspot.com/bug?extid=6692c72009680f7c4eb2 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=163be156500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1775d04e500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6692c72009680f7c4eb2@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff888109b4dc00 (size 192): comm "kworker/1:2", pid 3705, jiffies 4294941906 (age 14.110s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 18 dc b4 09 81 88 ff ff ................ backtrace: [<000000006422299c>] kmalloc include/linux/slab.h:557 [inline] [<000000006422299c>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<000000007744b258>] ath9k_hif_usb_alloc_tx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:829 [inline] [<000000007744b258>] ath9k_hif_usb_alloc_urbs+0x148/0x640 drivers/net/wireless/ath/ath9k/hif_usb.c:1008 [<000000006c8e4116>] ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1102 [inline] [<000000006c8e4116>] ath9k_hif_usb_firmware_cb+0x88/0x1f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1235 [<00000000e5c70763>] request_firmware_work_func+0x47/0x90 drivers/base/firmware_loader/main.c:1079 [<0000000089bbfbae>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<00000000d58def96>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<000000001b9033f3>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<000000001b3150ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff88810efed240 (size 192): comm "kworker/1:2", pid 3705, jiffies 4294941906 (age 14.110s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 58 d2 fe 0e 81 88 ff ff ........X....... backtrace: [<000000006422299c>] kmalloc include/linux/slab.h:557 [inline] [<000000006422299c>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<000000007744b258>] ath9k_hif_usb_alloc_tx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:829 [inline] [<000000007744b258>] ath9k_hif_usb_alloc_urbs+0x148/0x640 drivers/net/wireless/ath/ath9k/hif_usb.c:1008 [<000000006c8e4116>] ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1102 [inline] [<000000006c8e4116>] ath9k_hif_usb_firmware_cb+0x88/0x1f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1235 [<00000000e5c70763>] request_firmware_work_func+0x47/0x90 drivers/base/firmware_loader/main.c:1079 [<0000000089bbfbae>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<00000000d58def96>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<000000001b9033f3>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<000000001b3150ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff88810efedb40 (size 192): comm "kworker/1:2", pid 3705, jiffies 4294941906 (age 14.110s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 58 db fe 0e 81 88 ff ff ........X....... backtrace: [<000000006422299c>] kmalloc include/linux/slab.h:557 [inline] [<000000006422299c>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<000000007744b258>] ath9k_hif_usb_alloc_tx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:829 [inline] [<000000007744b258>] ath9k_hif_usb_alloc_urbs+0x148/0x640 drivers/net/wireless/ath/ath9k/hif_usb.c:1008 [<000000006c8e4116>] ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1102 [inline] [<000000006c8e4116>] ath9k_hif_usb_firmware_cb+0x88/0x1f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1235 [<00000000e5c70763>] request_firmware_work_func+0x47/0x90 drivers/base/firmware_loader/main.c:1079 [<0000000089bbfbae>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<00000000d58def96>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<000000001b9033f3>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<000000001b3150ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff88810efedf00 (size 192): comm "kworker/1:2", pid 3705, jiffies 4294941906 (age 14.110s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 18 df fe 0e 81 88 ff ff ................ backtrace: [<000000006422299c>] kmalloc include/linux/slab.h:557 [inline] [<000000006422299c>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<000000007744b258>] ath9k_hif_usb_alloc_tx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:829 [inline] [<000000007744b258>] ath9k_hif_usb_alloc_urbs+0x148/0x640 drivers/net/wireless/ath/ath9k/hif_usb.c:1008 [<000000006c8e4116>] ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1102 [inline] [<000000006c8e4116>] ath9k_hif_usb_firmware_cb+0x88/0x1f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1235 [<00000000e5c70763>] request_firmware_work_func+0x47/0x90 drivers/base/firmware_loader/main.c:1079 [<0000000089bbfbae>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<00000000d58def96>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<000000001b9033f3>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<000000001b3150ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff88810efedc00 (size 192): comm "kworker/1:2", pid 3705, jiffies 4294941906 (age 14.110s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 18 dc fe 0e 81 88 ff ff ................ backtrace: [<000000006422299c>] kmalloc include/linux/slab.h:557 [inline] [<000000006422299c>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<000000007744b258>] ath9k_hif_usb_alloc_tx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:829 [inline] [<000000007744b258>] ath9k_hif_usb_alloc_urbs+0x148/0x640 drivers/net/wireless/ath/ath9k/hif_usb.c:1008 [<000000006c8e4116>] ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1102 [inline] [<000000006c8e4116>] ath9k_hif_usb_firmware_cb+0x88/0x1f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1235 [<00000000e5c70763>] request_firmware_work_func+0x47/0x90 drivers/base/firmware_loader/main.c:1079 [<0000000089bbfbae>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<00000000d58def96>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<000000001b9033f3>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<000000001b3150ee>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 --- 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
