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KASAN: use-after-free Write in steam_input_close

Status: auto-obsoleted due to no activity on 2025/06/05 22:19
First crash: 245d, last: 245d
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-6-1 KASAN: use-after-free Write in steam_input_close 24 1 409d 409d 0/2 auto-obsoleted due to no activity on 2024/12/23 19:41
android-6-1 KASAN: use-after-free Write in steam_input_close (2) 24 1 54d 54d 0/2 premoderation: reported on 2025/09/15 09:57
android-5-10 KASAN: use-after-free Write in steam_input_close 24 C 23 5d06h 395d 0/2 upstream: reported C repro on 2024/10/08 20:27
android-5-15 KASAN: use-after-free Write in steam_input_close origin:lts 24 C error 3 130d 426d 0/2 upstream: reported C repro on 2024/09/08 05:16
upstream KASAN: slab-use-after-free Read in steam_input_close usb input 19 2 243d 258d 0/29 auto-obsoleted due to no activity on 2025/06/08 06:57
linux-6.1 KASAN: use-after-free Read in steam_input_close 19 1 449d 449d 0/3 auto-obsoleted due to no activity on 2024/11/23 18:34

Sample crash report:
==================================================================
BUG: KASAN: use-after-free in atomic64_try_cmpxchg include/asm-generic/atomic-instrumented.h:1503 [inline]
BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:442 [inline]
BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:173 [inline]
BUG: KASAN: use-after-free in mutex_lock+0x98/0x110 kernel/locking/mutex.c:295
Write of size 8 at addr ffff8881d14db040 by task acpid/148

CPU: 0 PID: 148 Comm: acpid Not tainted 5.4.290-syzkaller-00017-g6b07fcd94a6a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x241 lib/dump_stack.c:118
 print_address_description+0x8c/0x600 mm/kasan/report.c:384
 __kasan_report+0xf3/0x120 mm/kasan/report.c:516
 kasan_report+0x30/0x60 mm/kasan/common.c:653
 check_memory_region_inline mm/kasan/generic.c:141 [inline]
 check_memory_region+0x272/0x280 mm/kasan/generic.c:191
 atomic64_try_cmpxchg include/asm-generic/atomic-instrumented.h:1503 [inline]
 atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:442 [inline]
 __mutex_trylock_fast kernel/locking/mutex.c:173 [inline]
 mutex_lock+0x98/0x110 kernel/locking/mutex.c:295
 steam_input_close+0x90/0x1e0 drivers/hid/hid-steam.c:308
 input_close_device+0x255/0x2f0 drivers/input/input.c:694
 evdev_close_device drivers/input/evdev.c:414 [inline]
 evdev_release+0x737/0x7c0 drivers/input/evdev.c:456
 __fput+0x262/0x680 fs/file_table.c:281
 task_work_run+0x140/0x170 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x190/0x1a0 arch/x86/entry/common.c:163
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f1bf28c80a8
Code: 48 8b 05 83 9d 0d 00 64 c7 00 16 00 00 00 83 c8 ff 48 83 c4 20 5b c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 5b 48 8b 15 51 9d 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffda11e4cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007ffda11e4f68 RCX: 00007f1bf28c80a8
RDX: 0000000000000000 RSI: 000000000000001e RDI: 000000000000000a
RBP: 000000000000000a R08: 0000000000000008 R09: 00007ffda11e4e68
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda11e4e68
R13: 00000000000000a0 R14: 00007ffda11e4f68 R15: 00007ffda11e4e68

Allocated by task 527:
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 __kasan_kmalloc+0x171/0x210 mm/kasan/common.c:529
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc_node mm/slub.c:2829 [inline]
 slab_alloc mm/slub.c:2837 [inline]
 __kmalloc_track_caller+0x100/0x2b0 mm/slub.c:4449
 alloc_dr drivers/base/devres.c:103 [inline]
 devm_kmalloc+0x34/0x1d0 drivers/base/devres.c:816
 devm_kzalloc include/linux/device.h:953 [inline]
 steam_probe+0x11a/0xa70 drivers/hid/hid-steam.c:741
 hid_device_probe+0x2ac/0x3b0 drivers/hid/hid-core.c:2294
 really_probe+0x496/0xb80 drivers/base/dd.c:567
 driver_probe_device+0xe5/0x240 drivers/base/dd.c:752
 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:432
 __device_attach+0x31c/0x490 drivers/base/dd.c:933
 bus_probe_device+0xbd/0x1e0 drivers/base/bus.c:492
 device_add+0x88d/0xbb0 drivers/base/core.c:2911
 hid_add_device+0x37f/0x4c0 drivers/hid/hid-core.c:2446
 usbhid_probe+0xafd/0xea0 drivers/hid/usbhid/hid-core.c:1418
 usb_probe_interface+0x5aa/0xa90 drivers/usb/core/driver.c:361
 really_probe+0x4dd/0xb80 drivers/base/dd.c:571
 driver_probe_device+0xe5/0x240 drivers/base/dd.c:752
 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:432
 __device_attach+0x31c/0x490 drivers/base/dd.c:933
 bus_probe_device+0xbd/0x1e0 drivers/base/bus.c:492
 device_add+0x88d/0xbb0 drivers/base/core.c:2911
 usb_set_configuration+0x18ce/0x1e30 drivers/usb/core/message.c:2029
 generic_probe+0x84/0x140 drivers/usb/core/generic.c:210
 really_probe+0x4dd/0xb80 drivers/base/dd.c:571
 driver_probe_device+0xe5/0x240 drivers/base/dd.c:752
 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:432
 __device_attach+0x31c/0x490 drivers/base/dd.c:933
 bus_probe_device+0xbd/0x1e0 drivers/base/bus.c:492
 device_add+0x88d/0xbb0 drivers/base/core.c:2911
 usb_new_device+0xbbc/0x1760 drivers/usb/core/hub.c:2581
 hub_port_connect drivers/usb/core/hub.c:5214 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5333 [inline]
 port_event drivers/usb/core/hub.c:5479 [inline]
 hub_event+0x2c62/0x4d50 drivers/usb/core/hub.c:5561
 process_one_work+0x765/0xd20 kernel/workqueue.c:2290
 worker_thread+0xaef/0x1470 kernel/workqueue.c:2436
 kthread+0x2da/0x360 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354

Freed by task 527:
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 kasan_set_free_info mm/kasan/common.c:345 [inline]
 __kasan_slab_free+0x1b5/0x270 mm/kasan/common.c:487
 slab_free_hook mm/slub.c:1455 [inline]
 slab_free_freelist_hook mm/slub.c:1494 [inline]
 slab_free mm/slub.c:3080 [inline]
 kfree+0x123/0x370 mm/slub.c:4071
 release_nodes+0x85a/0x8e0 drivers/base/devres.c:508
 __device_release_driver drivers/base/dd.c:1191 [inline]
 device_release_driver_internal+0x519/0x7b0 drivers/base/dd.c:1220
 bus_remove_device+0x2ca/0x340 drivers/base/bus.c:534
 device_del+0x65a/0xfa0 drivers/base/core.c:3088
 hid_remove_device drivers/hid/hid-core.c:2494 [inline]
 hid_destroy_device+0x64/0x100 drivers/hid/hid-core.c:2513
 usbhid_disconnect+0x9a/0xc0 drivers/hid/usbhid/hid-core.c:1445
 usb_unbind_interface+0x1d0/0x840 drivers/usb/core/driver.c:423
 __device_release_driver drivers/base/dd.c:1188 [inline]
 device_release_driver_internal+0x50a/0x7b0 drivers/base/dd.c:1220
 bus_remove_device+0x2ca/0x340 drivers/base/bus.c:534
 device_del+0x65a/0xfa0 drivers/base/core.c:3088
 usb_disable_device+0x38c/0x750 drivers/usb/core/message.c:1277
 usb_disconnect+0x32c/0x890 drivers/usb/core/hub.c:2237
 hub_port_connect drivers/usb/core/hub.c:5057 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5333 [inline]
 port_event drivers/usb/core/hub.c:5479 [inline]
 hub_event+0x1c75/0x4d50 drivers/usb/core/hub.c:5561
 process_one_work+0x765/0xd20 kernel/workqueue.c:2290
 process_scheduled_works kernel/workqueue.c:2352 [inline]
 worker_thread+0xe02/0x1470 kernel/workqueue.c:2438
 kthread+0x2da/0x360 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354

The buggy address belongs to the object at ffff8881d14db000
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 64 bytes inside of
 512-byte region [ffff8881d14db000, ffff8881d14db200)
The buggy address belongs to the page:
page:ffffea0007453600 refcount:1 mapcount:0 mapping:ffff8881f5c02500 index:0x0 compound_mapcount: 0
flags: 0x8000000000010200(slab|head)
raw: 8000000000010200 0000000000000000 0000000100000001 ffff8881f5c02500
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL)
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook mm/page_alloc.c:2165 [inline]
 prep_new_page+0x18f/0x370 mm/page_alloc.c:2171
 get_page_from_freelist+0x2d13/0x2d90 mm/page_alloc.c:3794
 __alloc_pages_nodemask+0x393/0x840 mm/page_alloc.c:4893
 alloc_slab_page+0x39/0x3c0 mm/slub.c:343
 allocate_slab mm/slub.c:1683 [inline]
 new_slab+0x97/0x440 mm/slub.c:1749
 new_slab_objects mm/slub.c:2505 [inline]
 ___slab_alloc+0x2fe/0x490 mm/slub.c:2667
 __slab_alloc+0x62/0xa0 mm/slub.c:2707
 slab_alloc_node mm/slub.c:2792 [inline]
 slab_alloc mm/slub.c:2837 [inline]
 __kmalloc+0x19b/0x2e0 mm/slub.c:3909
 kmalloc_array include/linux/slab.h:618 [inline]
 kcalloc include/linux/slab.h:629 [inline]
 kvm_create_vm_debugfs virt/kvm/kvm_main.c:664 [inline]
 kvm_dev_ioctl_create_vm virt/kvm/kvm_main.c:3706 [inline]
 kvm_dev_ioctl+0x1734/0x1cc0 virt/kvm/kvm_main.c:3733
 do_vfs_ioctl+0x742/0x1720 fs/ioctl.c:47
 ksys_ioctl fs/ioctl.c:742 [inline]
 __do_sys_ioctl fs/ioctl.c:749 [inline]
 __se_sys_ioctl fs/ioctl.c:747 [inline]
 __x64_sys_ioctl+0xd4/0x110 fs/ioctl.c:747
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881d14daf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881d14daf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881d14db000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff8881d14db080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881d14db100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read
hid 0003:28DE:1102.0001: No HID_FEATURE_REPORT submitted -  nothing to read

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/03/07 22:18 android12-5.4 6b07fcd94a6a 7e3bd60d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan KASAN: use-after-free Write in steam_input_close
* Struck through repros no longer work on HEAD.