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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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160ac0d55d
commit 6b9fbe16955152626557ec6f439f3407b7769941 upstream.
syzbot reported memory leak in atusb_probe()[1].
The problem was in atusb_alloc_urbs().
Since urb is anchored, we need to release the reference
to correctly free the urb
backtrace:
[<ffffffff82ba0466>] kmalloc include/linux/slab.h:559 [inline]
[<ffffffff82ba0466>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74
[<ffffffff82ad3888>] atusb_alloc_urbs drivers/net/ieee802154/atusb.c:362 [inline][2]
[<ffffffff82ad3888>] atusb_probe+0x158/0x820 drivers/net/ieee802154/atusb.c:1038 [1]
Reported-by: syzbot+28a246747e0a465127f3@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|---|---|---|
| .. | ||
| adf7242.c | ||
| at86rf230.c | ||
| at86rf230.h | ||
| atusb.c | ||
| atusb.h | ||
| ca8210.c | ||
| cc2520.c | ||
| fakelb.c | ||
| Kconfig | ||
| mac802154_hwsim.c | ||
| mac802154_hwsim.h | ||
| Makefile | ||
| mcr20a.c | ||
| mcr20a.h | ||
| mrf24j40.c | ||