memory leak in zr364xx

memory leak in zr364xx_probe
Status: fixed on 2021/04/09 19:46
Reported-by: syzbot+b4d54814b339b5c6bbd4@syzkaller.appspotmail.com
Fix commit: ea354b6ddd6f media: zr364xx: fix memory leaks in probe()
First crash: 350d, last: 293d

Patch testing requests:
Created	Duration	User	Patch	Repo	Result
2020/12/31 20:47	7m	ezequiel@vanguardiasur.com.ar		https://gitlab.collabora.com/linux/0day.git a1714d224e516b579d09cc1b4c3d85042e42f14c	report log
2020/12/31 01:40	7m	ezequiel@vanguardiasur.com.ar		https://gitlab.collabora.com/linux/0day.git a1714d224e516b579d09cc1b4c3d85042e42f14c	report log

Sample crash report:

BUG: memory leak
unreferenced object 0xffffc90000e41000 (size 200704):
  comm "kworker/1:0", pid 19, jiffies 4294942778 (age 8.110s)
  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:
    [<00000000b4b9663d>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2587
    [<000000005c06e2e3>] __vmalloc_node mm/vmalloc.c:2619 [inline]
    [<000000005c06e2e3>] vmalloc+0x49/0x50 mm/vmalloc.c:2652
    [<000000003d1726a6>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1348 [inline]
    [<000000003d1726a6>] zr364xx_probe+0x60b/0x833 drivers/media/usb/zr364xx/zr364xx.c:1509
    [<000000001294e18c>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<000000007bb53747>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000157d65a3>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740
    [<0000000033b53add>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846
    [<000000005a5f78e9>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<00000000077fbc98>] __device_attach+0x122/0x250 drivers/base/dd.c:914
    [<000000002d5d516c>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<000000001c2093c9>] device_add+0x5be/0xc30 drivers/base/core.c:3109
    [<00000000336d7925>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<00000000981a2b76>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<00000000ba2c73ad>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<000000007bb53747>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
    [<00000000157d65a3>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740

Crashes (6):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Title
ci-upstream-gce-leak	2021/02/14 07:16	upstream	ac30d8ce28d6	98682e5e	.config	log	report	syz	C	memory leak in zr364xx_probe
ci-upstream-gce-leak	2021/02/07 17:35	upstream	825b5991a46e	2ce644fc	.config	log	report	syz	C	memory leak in zr364xx_probe
ci-upstream-gce-leak	2021/02/03 17:04	upstream	3aaf0a27ffc2	624dad51	.config	log	report	syz	C	memory leak in zr364xx_probe
ci-upstream-gce-leak	2021/01/27 20:58	upstream	2ab38c17aac1	a0ebf917	.config	log	report	syz	C	memory leak in zr364xx_probe
ci-upstream-gce-leak	2021/01/08 14:39	upstream	f5e6c330254a	c104d4a3	.config	log	report	syz	C
ci-upstream-gce-leak	2020/12/19 15:22	upstream	3644e2d2dda7	04201c06	.config	log	report	syz	C