From: syzbot <syzbot+636c58f40a86b4a879e7@syzkaller.appspotmail.com>
To: a.darwish@linutronix.de, balbi@kernel.org, bigeasy@linutronix.de,
gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org, stern@rowland.harvard.edu,
syzkaller-bugs@googlegroups.com, tglx@linutronix.de
Subject: [syzbot] memory leak in hub_event (2)
Date: Sun, 14 Mar 2021 21:38:14 -0700 [thread overview]
Message-ID: <000000000000694b0805bd8bd16c@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 05a59d79 Merge git://git.kernel.org:/pub/scm/linux/kernel/..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=164e6ba2d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=796675cee501159f
dashboard link: https://syzkaller.appspot.com/bug?extid=636c58f40a86b4a879e7
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=111849ecd00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16037376d00000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+636c58f40a86b4a879e7@syzkaller.appspotmail.com
BUG: memory leak
unreferenced object 0xffff888109985800 (size 2048):
comm "kworker/1:1", pid 35, jiffies 4294966369 (age 27.230s)
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:
[<000000004dfe56d1>] kmalloc include/linux/slab.h:554 [inline]
[<000000004dfe56d1>] kzalloc include/linux/slab.h:684 [inline]
[<000000004dfe56d1>] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582
[<00000000d2920859>] hub_port_connect drivers/usb/core/hub.c:5129 [inline]
[<00000000d2920859>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
[<00000000d2920859>] port_event drivers/usb/core/hub.c:5509 [inline]
[<00000000d2920859>] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591
[<0000000099d99129>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275
[<00000000a83d9aee>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421
[<00000000aaaf0fda>] kthread+0x178/0x1b0 kernel/kthread.c:292
[<00000000d2888c70>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
BUG: memory leak
unreferenced object 0xffff88810cec9900 (size 32):
comm "kworker/1:1", pid 35, jiffies 4294966421 (age 26.710s)
hex dump (first 32 bytes):
00 65 d0 10 81 88 ff ff 00 00 00 00 00 00 00 00 .e..............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000008a69447c>] kmalloc include/linux/slab.h:559 [inline]
[<000000008a69447c>] kzalloc include/linux/slab.h:684 [inline]
[<000000008a69447c>] usb_get_configuration+0xce/0x1dd0 drivers/usb/core/config.c:887
[<00000000a636fc1f>] usb_enumerate_device drivers/usb/core/hub.c:2388 [inline]
[<00000000a636fc1f>] usb_new_device+0x1a9/0x2e0 drivers/usb/core/hub.c:2524
[<0000000024685ce9>] hub_port_connect drivers/usb/core/hub.c:5223 [inline]
[<0000000024685ce9>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
[<0000000024685ce9>] port_event drivers/usb/core/hub.c:5509 [inline]
[<0000000024685ce9>] hub_event+0x142e/0x20c0 drivers/usb/core/hub.c:5591
[<0000000099d99129>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275
[<00000000a83d9aee>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421
[<00000000aaaf0fda>] kthread+0x178/0x1b0 kernel/kthread.c:292
[<00000000d2888c70>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
BUG: memory leak
unreferenced object 0xffff88810b1b75c0 (size 32):
comm "kworker/1:1", pid 35, jiffies 4294966448 (age 26.440s)
hex dump (first 32 bytes):
73 79 7a 00 00 00 00 00 00 00 00 00 00 00 00 00 syz.............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000007889c4a2>] kmalloc include/linux/slab.h:559 [inline]
[<000000007889c4a2>] usb_cache_string+0x8a/0xf0 drivers/usb/core/message.c:1025
[<00000000c372c0b9>] usb_enumerate_device drivers/usb/core/hub.c:2398 [inline]
[<00000000c372c0b9>] usb_new_device+0x98/0x2e0 drivers/usb/core/hub.c:2524
[<0000000024685ce9>] hub_port_connect drivers/usb/core/hub.c:5223 [inline]
[<0000000024685ce9>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
[<0000000024685ce9>] port_event drivers/usb/core/hub.c:5509 [inline]
[<0000000024685ce9>] hub_event+0x142e/0x20c0 drivers/usb/core/hub.c:5591
[<0000000099d99129>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275
[<00000000a83d9aee>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421
[<00000000aaaf0fda>] kthread+0x178/0x1b0 kernel/kthread.c:292
[<00000000d2888c70>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
BUG: memory leak
unreferenced object 0xffff88810cec9800 (size 32):
comm "kworker/1:1", pid 35, jiffies 4294966452 (age 26.400s)
hex dump (first 32 bytes):
73 79 7a 00 00 00 00 00 00 00 00 00 00 00 00 00 syz.............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000007889c4a2>] kmalloc include/linux/slab.h:559 [inline]
[<000000007889c4a2>] usb_cache_string+0x8a/0xf0 drivers/usb/core/message.c:1025
[<00000000b8074d2b>] usb_enumerate_device drivers/usb/core/hub.c:2399 [inline]
[<00000000b8074d2b>] usb_new_device+0xae/0x2e0 drivers/usb/core/hub.c:2524
[<0000000024685ce9>] hub_port_connect drivers/usb/core/hub.c:5223 [inline]
[<0000000024685ce9>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
[<0000000024685ce9>] port_event drivers/usb/core/hub.c:5509 [inline]
[<0000000024685ce9>] hub_event+0x142e/0x20c0 drivers/usb/core/hub.c:5591
[<0000000099d99129>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275
[<00000000a83d9aee>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421
[<00000000aaaf0fda>] kthread+0x178/0x1b0 kernel/kthread.c:292
[<00000000d2888c70>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
BUG: memory leak
unreferenced object 0xffff88810cec9140 (size 32):
comm "kworker/1:1", pid 35, jiffies 4294966456 (age 26.360s)
hex dump (first 32 bytes):
73 79 7a 00 00 00 00 00 00 00 00 00 00 00 00 00 syz.............
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000007889c4a2>] kmalloc include/linux/slab.h:559 [inline]
[<000000007889c4a2>] usb_cache_string+0x8a/0xf0 drivers/usb/core/message.c:1025
[<000000002dd0377f>] usb_enumerate_device drivers/usb/core/hub.c:2401 [inline]
[<000000002dd0377f>] usb_new_device+0xc4/0x2e0 drivers/usb/core/hub.c:2524
[<0000000024685ce9>] hub_port_connect drivers/usb/core/hub.c:5223 [inline]
[<0000000024685ce9>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
[<0000000024685ce9>] port_event drivers/usb/core/hub.c:5509 [inline]
[<0000000024685ce9>] hub_event+0x142e/0x20c0 drivers/usb/core/hub.c:5591
[<0000000099d99129>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275
[<00000000a83d9aee>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421
[<00000000aaaf0fda>] kthread+0x178/0x1b0 kernel/kthread.c:292
[<00000000d2888c70>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
BUG: memory leak
unreferenced object 0xffff8881101a8800 (size 256):
comm "kworker/1:1", pid 35, jiffies 4294966459 (age 26.330s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 08 88 1a 10 81 88 ff ff ................
08 88 1a 10 81 88 ff ff 30 23 5e 82 ff ff ff ff ........0#^.....
backtrace:
[<000000002a4ba0cb>] kmalloc include/linux/slab.h:554 [inline]
[<000000002a4ba0cb>] kzalloc include/linux/slab.h:684 [inline]
[<000000002a4ba0cb>] device_private_init drivers/base/core.c:3084 [inline]
[<000000002a4ba0cb>] device_add+0x811/0xc40 drivers/base/core.c:3134
[<00000000440fa047>] usb_new_device.cold+0x16a/0x582 drivers/usb/core/hub.c:2555
[<0000000024685ce9>] hub_port_connect drivers/usb/core/hub.c:5223 [inline]
[<0000000024685ce9>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
[<0000000024685ce9>] port_event drivers/usb/core/hub.c:5509 [inline]
[<0000000024685ce9>] hub_event+0x142e/0x20c0 drivers/usb/core/hub.c:5591
[<0000000099d99129>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275
[<00000000a83d9aee>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421
[<00000000aaaf0fda>] kthread+0x178/0x1b0 kernel/kthread.c:292
[<00000000d2888c70>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
---
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
reply other threads:[~2021-03-15 4:39 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=000000000000694b0805bd8bd16c@google.com \
--to=syzbot+636c58f40a86b4a879e7@syzkaller.appspotmail.com \
--cc=a.darwish@linutronix.de \
--cc=balbi@kernel.org \
--cc=bigeasy@linutronix.de \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=stern@rowland.harvard.edu \
--cc=syzkaller-bugs@googlegroups.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.