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memory leak in dualshock4_get_calibration_data

Status: upstream: reported C repro on 2025/11/13 04:38
Subsystems: input usb
[Documentation on labels]
Reported-by: syzbot+4f5f81e1456a1f645bf8@syzkaller.appspotmail.com
First crash: 5d04h, last: 5d04h
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[PATCH v2] HID: memory leak in dualshock4_get_calibration_data 3 (3) 2025/11/16 15:09
[PATCH] HID: memory leak in dualshock4_get_calibration_data 5 (5) 2025/11/16 02:13
[syzbot] [input?] [usb?] memory leak in dualshock4_get_calibration_data 1 (5) 2025/11/15 01:44
▶ ▼ Last patch testing requests (3)
Created Duration User Patch Repo Result
2025/11/15 01:44 23m eslam.medhat1993@gmail.com patch upstream OK log
2025/11/15 01:12 36m eslam.medhat1993@gmail.com patch upstream OK log
2025/11/13 07:23 13m oneukum@suse.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 24172e0d7990 error

Sample crash report:
BUG: memory leak
unreferenced object 0xffff8881192f9a40 (size 64):
  comm "kworker/1:0", pid 23, jiffies 4294944710
  hex dump (first 32 bytes):
    02 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 (crc c51b5d6b):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4983 [inline]
    slab_alloc_node mm/slub.c:5288 [inline]
    __kmalloc_cache_noprof+0x3a6/0x5b0 mm/slub.c:5766
    kmalloc_noprof include/linux/slab.h:957 [inline]
    kzalloc_noprof include/linux/slab.h:1094 [inline]
    dualshock4_get_calibration_data+0x437/0x500 drivers/hid/hid-playstation.c:1919
    dualshock4_create drivers/hid/hid-playstation.c:2747 [inline]
    ps_probe drivers/hid/hid-playstation.c:2845 [inline]
    ps_probe+0x747/0x17d0 drivers/hid/hid-playstation.c:2821
    __hid_device_probe drivers/hid/hid-core.c:2775 [inline]
    hid_device_probe+0x298/0x3b0 drivers/hid/hid-core.c:2812
    call_driver_probe drivers/base/dd.c:581 [inline]
    really_probe+0x12f/0x430 drivers/base/dd.c:659
    __driver_probe_device+0xc3/0x1a0 drivers/base/dd.c:801
    driver_probe_device+0x2a/0x120 drivers/base/dd.c:831
    __device_attach_driver+0x10f/0x170 drivers/base/dd.c:959
    bus_for_each_drv+0xcf/0x120 drivers/base/bus.c:462
    __device_attach+0xf9/0x290 drivers/base/dd.c:1031
    bus_probe_device+0xcd/0xe0 drivers/base/bus.c:537
    device_add+0x983/0xc80 drivers/base/core.c:3689
    hid_add_device+0x140/0x250 drivers/hid/hid-core.c:2951
    usbhid_probe+0x5ed/0x950 drivers/hid/usbhid/hid-core.c:1435
    usb_probe_interface+0x173/0x3f0 drivers/usb/core/driver.c:396
    call_driver_probe drivers/base/dd.c:581 [inline]
    really_probe+0x12f/0x430 drivers/base/dd.c:659

BUG: memory leak
unreferenced object 0xffff8881192e7740 (size 64):
  comm "kworker/1:0", pid 23, jiffies 4294944884
  hex dump (first 32 bytes):
    02 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 (crc c51b5d6b):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4983 [inline]
    slab_alloc_node mm/slub.c:5288 [inline]
    __kmalloc_cache_noprof+0x3a6/0x5b0 mm/slub.c:5766
    kmalloc_noprof include/linux/slab.h:957 [inline]
    kzalloc_noprof include/linux/slab.h:1094 [inline]
    dualshock4_get_calibration_data+0x437/0x500 drivers/hid/hid-playstation.c:1919
    dualshock4_create drivers/hid/hid-playstation.c:2747 [inline]
    ps_probe drivers/hid/hid-playstation.c:2845 [inline]
    ps_probe+0x747/0x17d0 drivers/hid/hid-playstation.c:2821
    __hid_device_probe drivers/hid/hid-core.c:2775 [inline]
    hid_device_probe+0x298/0x3b0 drivers/hid/hid-core.c:2812
    call_driver_probe drivers/base/dd.c:581 [inline]
    really_probe+0x12f/0x430 drivers/base/dd.c:659
    __driver_probe_device+0xc3/0x1a0 drivers/base/dd.c:801
    driver_probe_device+0x2a/0x120 drivers/base/dd.c:831
    __device_attach_driver+0x10f/0x170 drivers/base/dd.c:959
    bus_for_each_drv+0xcf/0x120 drivers/base/bus.c:462
    __device_attach+0xf9/0x290 drivers/base/dd.c:1031
    bus_probe_device+0xcd/0xe0 drivers/base/bus.c:537
    device_add+0x983/0xc80 drivers/base/core.c:3689
    hid_add_device+0x140/0x250 drivers/hid/hid-core.c:2951
    usbhid_probe+0x5ed/0x950 drivers/hid/usbhid/hid-core.c:1435
    usb_probe_interface+0x173/0x3f0 drivers/usb/core/driver.c:396
    call_driver_probe drivers/base/dd.c:581 [inline]
    really_probe+0x12f/0x430 drivers/base/dd.c:659

BUG: memory leak
unreferenced object 0xffff88812484e5c0 (size 64):
  comm "kworker/0:0", pid 9, jiffies 4294945059
  hex dump (first 32 bytes):
    02 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 (crc c51b5d6b):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4983 [inline]
    slab_alloc_node mm/slub.c:5288 [inline]
    __kmalloc_cache_noprof+0x3a6/0x5b0 mm/slub.c:5766
    kmalloc_noprof include/linux/slab.h:957 [inline]
    kzalloc_noprof include/linux/slab.h:1094 [inline]
    dualshock4_get_calibration_data+0x437/0x500 drivers/hid/hid-playstation.c:1919
    dualshock4_create drivers/hid/hid-playstation.c:2747 [inline]
    ps_probe drivers/hid/hid-playstation.c:2845 [inline]
    ps_probe+0x747/0x17d0 drivers/hid/hid-playstation.c:2821
    __hid_device_probe drivers/hid/hid-core.c:2775 [inline]
    hid_device_probe+0x298/0x3b0 drivers/hid/hid-core.c:2812
    call_driver_probe drivers/base/dd.c:581 [inline]
    really_probe+0x12f/0x430 drivers/base/dd.c:659
    __driver_probe_device+0xc3/0x1a0 drivers/base/dd.c:801
    driver_probe_device+0x2a/0x120 drivers/base/dd.c:831
    __device_attach_driver+0x10f/0x170 drivers/base/dd.c:959
    bus_for_each_drv+0xcf/0x120 drivers/base/bus.c:462
    __device_attach+0xf9/0x290 drivers/base/dd.c:1031
    bus_probe_device+0xcd/0xe0 drivers/base/bus.c:537
    device_add+0x983/0xc80 drivers/base/core.c:3689
    hid_add_device+0x140/0x250 drivers/hid/hid-core.c:2951
    usbhid_probe+0x5ed/0x950 drivers/hid/usbhid/hid-core.c:1435
    usb_probe_interface+0x173/0x3f0 drivers/usb/core/driver.c:396
    call_driver_probe drivers/base/dd.c:581 [inline]
    really_probe+0x12f/0x430 drivers/base/dd.c:659

connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/11/13 02:59 upstream 24172e0d7990 07e030de .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in dualshock4_get_calibration_data
* Struck through repros no longer work on HEAD.