memory leak in zr364xx_start_readpipe

Status: fixed on 2021/11/10 00:50
Subsystems: media usb
[Documentation on labels]
Reported-by: syzbot+af4fa391ef18efdd5f69@syzkaller.appspotmail.com
Fix commit: 0a045eac8d04 media: zr364xx: fix memory leak in zr364xx_start_readpipe
First crash: 1916d, last: 1871d
▶ ▼ Discussions (10)
Title Replies (including bot) Last reply
[PATCH 5.12 000/242] 5.12.18-rc1 review 258 (258) 2021/07/22 14:12
[PATCH 4.4 000/188] 4.4.276-rc1 review 195 (195) 2021/07/21 10:42
[PATCH 4.9 000/245] 4.9.276-rc1 review 250 (250) 2021/07/21 10:29
[PATCH 4.14 000/315] 4.14.240-rc1 review 321 (321) 2021/07/20 08:21
[PATCH 4.19 000/421] 4.19.198-rc1 review 423 (423) 2021/07/19 16:00
[PATCH 5.4 000/122] 5.4.133-rc1 review 131 (131) 2021/07/17 01:21
[PATCH 5.10 000/215] 5.10.51-rc1 review 225 (225) 2021/07/17 01:20
[PATCH 5.13 000/266] 5.13.3-rc1 review 276 (276) 2021/07/16 18:08
[PATCH] media: zr364xx: fix memory leak in zr364xx_start_readpipe 1 (1) 2021/05/17 19:18
[syzbot] memory leak in zr364xx_start_readpipe 1 (3) 2021/05/17 19:17
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2021/05/17 18:59 16m paskripkin@gmail.com https://linux.googlesource.com/linux/kernel/git/torvalds/linux refs/changes/96/11196/1 OK

Sample crash report:
BUG: memory leak
unreferenced object 0xffff8881112c1600 (size 192):
  comm "kworker/1:5", pid 8088, jiffies 4294943845 (age 8.070s)
  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 16 2c 11 81 88 ff ff  ..........,.....
  backtrace:
    [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline]
    [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74
    [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022
    [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline]
    [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516
    [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576
    [<ffffffff82601cdb>] driver_probe_device+0x8b/0x100 drivers/base/dd.c:763
    [<ffffffff82602406>] __device_attach_driver+0xf6/0x120 drivers/base/dd.c:870
    [<ffffffff825fe797>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
    [<ffffffff82601f82>] __device_attach+0x122/0x260 drivers/base/dd.c:938
    [<ffffffff82600436>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
    [<ffffffff825fc855>] device_add+0x5d5/0xd70 drivers/base/core.c:3319
    [<ffffffff82bb3aa9>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164
    [<ffffffff82bc3e3c>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
    [<ffffffff82bb5c6c>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
    [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576
    [<ffffffff82601cdb>] driver_probe_device+0x8b/0x100 drivers/base/dd.c:763

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/04/29 07:51 upstream d72cd4ad4174 77e2b668 .config console log report syz C ci-upstream-gce-leak memory leak in zr364xx_start_readpipe
2021/06/13 14:03 upstream 8ecfa36cd4db 1ba81399 .config console log report syz ci-upstream-gce-leak memory leak in zr364xx_start_readpipe
* Struck through repros no longer work on HEAD.