memory leak in hub

Title	Replies (including bot)	Last reply
[PATCH] HID: elo: Fix refcount leak in elo_probe()	12 (12)	2022/03/12 14:59
[syzbot] memory leak in hub_event (3)	1 (3)	2022/02/11 21:36

Title

Replies (including bot)

Last reply

[PATCH] HID: elo: Fix refcount leak in elo_probe()

12 (12)

2022/03/12 14:59

[syzbot] memory leak in hub_event (3)

1 (3)

2022/02/11 21:36

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	memory leak in hub_event usb	3	C			7	1709d	1798d	19/29	fixed on 2021/03/10 01:48
upstream	memory leak in hub_event (2) usb	3	C			2	1680d	1683d	20/29	fixed on 2021/11/10 00:50

Rank 🛈

upstream

memory leak in hub_event usb

1709d

1798d

19/29

fixed on 2021/03/10 01:48

upstream

memory leak in hub_event (2) usb

1680d

1683d

20/29

fixed on 2021/11/10 00:50


Created	Duration	User	Patch	Repo	Result
2022/11/04 13:30	16m	retest repro		upstream	OK log
2022/02/11 21:23	9m	stern@rowland.harvard.edu	patch	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ v5.17-rc3	OK

BUG: memory leak unreferenced object 0xffff88810d49e800 (size 2048): comm "kworker/1:1", pid 25, jiffies 4294954629 (age 16.460s) hex dump (first 32 bytes): ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00 ....1........... 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 ................ backtrace: [<ffffffff82c87a62>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff82c87a62>] kzalloc include/linux/slab.h:715 [inline] [<ffffffff82c87a62>] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582 [<ffffffff82c91a47>] hub_port_connect drivers/usb/core/hub.c:5260 [inline] [<ffffffff82c91a47>] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] [<ffffffff82c91a47>] port_event drivers/usb/core/hub.c:5660 [inline] [<ffffffff82c91a47>] hub_event+0x1097/0x21a0 drivers/usb/core/hub.c:5742 [<ffffffff8126c3ef>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126ccd9>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81276765>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810022ff>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff88810f5bd660 (size 32): comm "kworker/1:1", pid 25, jiffies 4294954629 (age 16.460s) hex dump (first 32 bytes): 31 2d 31 00 00 00 00 00 00 00 00 00 00 00 00 00 1-1............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff822cae8c>] kvasprintf+0x6c/0xf0 lib/kasprintf.c:25 [<ffffffff822caf68>] kvasprintf_const+0x58/0x110 lib/kasprintf.c:49 [<ffffffff823c074b>] kobject_set_name_vargs+0x3b/0xe0 lib/kobject.c:289 [<ffffffff826ae353>] dev_set_name+0x63/0x90 drivers/base/core.c:3193 [<ffffffff82c87c20>] usb_alloc_dev+0x1f0/0x450 drivers/usb/core/usb.c:650 [<ffffffff82c91a47>] hub_port_connect drivers/usb/core/hub.c:5260 [inline] [<ffffffff82c91a47>] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] [<ffffffff82c91a47>] port_event drivers/usb/core/hub.c:5660 [inline] [<ffffffff82c91a47>] hub_event+0x1097/0x21a0 drivers/usb/core/hub.c:5742 [<ffffffff8126c3ef>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126ccd9>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81276765>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810022ff>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 BUG: memory leak unreferenced object 0xffff888109944200 (size 256): comm "kworker/1:1", pid 25, jiffies 4294954683 (age 15.920s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 08 42 94 09 81 88 ff ff .........B...... 08 42 94 09 81 88 ff ff f0 e3 6a 82 ff ff ff ff .B........j..... backtrace: [<ffffffff826b3d9b>] kmalloc include/linux/slab.h:581 [inline] [<ffffffff826b3d9b>] kzalloc include/linux/slab.h:715 [inline] [<ffffffff826b3d9b>] device_private_init drivers/base/core.c:3249 [inline] [<ffffffff826b3d9b>] device_add+0x89b/0xdf0 drivers/base/core.c:3299 [<ffffffff8439de0c>] usb_new_device.cold+0x10f/0x58e drivers/usb/core/hub.c:2566 [<ffffffff82c91d14>] hub_port_connect drivers/usb/core/hub.c:5358 [inline] [<ffffffff82c91d14>] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] [<ffffffff82c91d14>] port_event drivers/usb/core/hub.c:5660 [inline] [<ffffffff82c91d14>] hub_event+0x1364/0x21a0 drivers/usb/core/hub.c:5742 [<ffffffff8126c3ef>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2307 [<ffffffff8126ccd9>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2454 [<ffffffff81276765>] kthread+0x125/0x160 kernel/kthread.c:377 [<ffffffff810022ff>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295