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KASAN: slab-out-of-bounds Read in mon_bin_event

Status: auto-obsoleted due to no activity on 2025/10/08 22:20
Subsystems: usb
[Documentation on labels]
Reported-by: syzbot+86b6d7c8bcc66747c505@syzkaller.appspotmail.com
First crash: 103d, last: 88d
▶ ▼ Discussions (4)
Title Replies (including bot) Last reply
[PATCH] usb: mon: Fix slab-out-of-bounds in mon_bin_event due to unsafe URB transfer_buffer access 4 (4) 2025/07/22 22:10
Re: [PATCH] usb: mon: Fix slab-out-of-bounds in mon_bin_event due to unsafe URB transfer_buffer access 2 (2) 2025/07/22 08:22
[syzbot] [usb?] KASAN: slab-out-of-bounds Read in mon_bin_event 2 (5) 2025/07/20 19:46
[PATCH] usbmon: Fix out-of-bounds read in mon_copy_to_buff 6 (6) 2025/07/03 14:51
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-6-12 KASAN: slab-out-of-bounds Read in mon_bin_event origin:upstream 17 C 56 56d 105d 0/1 auto-obsoleted due to no activity on 2025/10/07 00:37
android-5-15 KASAN: slab-out-of-bounds Read in mon_bin_event origin:downstream 17 C 3 36d 36d 0/2 upstream: reported C repro on 2025/09/06 17:28
android-5-10 KASAN: slab-out-of-bounds Read in mon_bin_event 17 C done 60 48d 103d 0/2 upstream: reported C repro on 2025/07/01 18:26
android-6-1 KASAN: slab-out-of-bounds Read in mon_bin_event origin:lts 17 C done 5 45d 85d 0/2 upstream: reported C repro on 2025/07/20 05:22
▶ ▼ Last patch testing requests (8)
Created Duration User Patch Repo Result
2025/10/08 19:31 1h09m retest repro linux-next OK log
2025/10/08 19:31 1h02m retest repro linux-next OK log
2025/10/08 19:31 36m retest repro linux-next OK log
2025/07/30 17:06 59m retest repro linux-next error
2025/07/30 17:06 25m retest repro linux-next error
2025/07/30 17:06 28m retest repro linux-next error
2025/07/20 19:16 29m contact@arnaud-lcm.com patch linux-next OK log
2025/07/03 04:35 16m hdanton@sina.com patch linux-next report log

Sample crash report:
microsoft 0003:045E:07DA.006D: unknown main item tag 0x0
microsoft 0003:045E:07DA.006D: unknown main item tag 0x0
microsoft 0003:045E:07DA.006D: unknown main item tag 0x0
microsoft 0003:045E:07DA.006D: unsupported Resolution Multiplier 0
==================================================================
BUG: KASAN: slab-out-of-bounds in mon_copy_to_buff drivers/usb/mon/mon_bin.c:252 [inline]
BUG: KASAN: slab-out-of-bounds in mon_bin_get_data drivers/usb/mon/mon_bin.c:420 [inline]
BUG: KASAN: slab-out-of-bounds in mon_bin_event+0x1211/0x2250 drivers/usb/mon/mon_bin.c:606
Read of size 512 at addr ffff88805b8f2a21 by task kworker/1:4/5885

CPU: 1 UID: 0 PID: 5885 Comm: kworker/1:4 Not tainted 6.16.0-rc6-syzkaller-00002-g155a3c003e55 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x230 mm/kasan/report.c:480
 kasan_report+0x118/0x150 mm/kasan/report.c:593
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x2b0/0x2c0 mm/kasan/generic.c:189
 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105
 mon_copy_to_buff drivers/usb/mon/mon_bin.c:252 [inline]
 mon_bin_get_data drivers/usb/mon/mon_bin.c:420 [inline]
 mon_bin_event+0x1211/0x2250 drivers/usb/mon/mon_bin.c:606
 mon_bus_submit drivers/usb/mon/mon_main.c:89 [inline]
 mon_submit+0x196/0x210 drivers/usb/mon/mon_main.c:100
 usbmon_urb_submit include/linux/usb/hcd.h:724 [inline]
 usb_hcd_submit_urb+0x11a/0x1aa0 drivers/usb/core/hcd.c:1518
 usb_start_wait_urb+0x114/0x4c0 drivers/usb/core/message.c:59
 usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
 usb_control_msg+0x232/0x3e0 drivers/usb/core/message.c:154
 usbhid_raw_request+0x3cd/0x4e0 drivers/hid/usbhid/hid-core.c:-1
 __hid_request+0x1c1/0x370 drivers/hid/hid-core.c:1989
 hidinput_change_resolution_multipliers drivers/hid/hid-input.c:1950 [inline]
 hidinput_connect+0x218a/0x3030 drivers/hid/hid-input.c:2327
 hid_connect+0x499/0x1980 drivers/hid/hid-core.c:2239
 hid_hw_start+0xa8/0x120 drivers/hid/hid-core.c:2354
 ms_probe+0x180/0x430 drivers/hid/hid-microsoft.c:391
 __hid_device_probe drivers/hid/hid-core.c:2724 [inline]
 hid_device_probe+0x3a0/0x710 drivers/hid/hid-core.c:2761
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26a/0x9a0 drivers/base/dd.c:657
 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799
 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829
 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957
 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462
 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029
 bus_probe_device+0x185/0x260 drivers/base/bus.c:537
 device_add+0x7b6/0xb50 drivers/base/core.c:3692
 hid_add_device+0x398/0x540 drivers/hid/hid-core.c:2907
 usbhid_probe+0xe13/0x12a0 drivers/hid/usbhid/hid-core.c:1435
 usb_probe_interface+0x641/0xbc0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26a/0x9a0 drivers/base/dd.c:657
 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799
 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829
 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957
 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462
 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029
 bus_probe_device+0x185/0x260 drivers/base/bus.c:537
 device_add+0x7b6/0xb50 drivers/base/core.c:3692
 usb_set_configuration+0x1a87/0x20e0 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c4/0x390 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26a/0x9a0 drivers/base/dd.c:657
 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799
 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829
 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957
 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462
 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029
 bus_probe_device+0x185/0x260 drivers/base/bus.c:537
 device_add+0x7b6/0xb50 drivers/base/core.c:3692
 usb_new_device+0xa39/0x16c0 drivers/usb/core/hub.c:2694
 hub_port_connect drivers/usb/core/hub.c:5566 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5706 [inline]
 port_event drivers/usb/core/hub.c:5866 [inline]
 hub_event+0x2941/0x4a00 drivers/usb/core/hub.c:5948
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 5885:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4328 [inline]
 __kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4340
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 hid_alloc_report_buf drivers/hid/hid-core.c:1890 [inline]
 __hid_request+0x94/0x370 drivers/hid/hid-core.c:1980
 hidinput_change_resolution_multipliers drivers/hid/hid-input.c:1950 [inline]
 hidinput_connect+0x218a/0x3030 drivers/hid/hid-input.c:2327
 hid_connect+0x499/0x1980 drivers/hid/hid-core.c:2239
 hid_hw_start+0xa8/0x120 drivers/hid/hid-core.c:2354
 ms_probe+0x180/0x430 drivers/hid/hid-microsoft.c:391
 __hid_device_probe drivers/hid/hid-core.c:2724 [inline]
 hid_device_probe+0x3a0/0x710 drivers/hid/hid-core.c:2761
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26a/0x9a0 drivers/base/dd.c:657
 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799
 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829
 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957
 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462
 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029
 bus_probe_device+0x185/0x260 drivers/base/bus.c:537
 device_add+0x7b6/0xb50 drivers/base/core.c:3692
 hid_add_device+0x398/0x540 drivers/hid/hid-core.c:2907
 usbhid_probe+0xe13/0x12a0 drivers/hid/usbhid/hid-core.c:1435
 usb_probe_interface+0x641/0xbc0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26a/0x9a0 drivers/base/dd.c:657
 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799
 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829
 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957
 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462
 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029
 bus_probe_device+0x185/0x260 drivers/base/bus.c:537
 device_add+0x7b6/0xb50 drivers/base/core.c:3692
 usb_set_configuration+0x1a87/0x20e0 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c4/0x390 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26a/0x9a0 drivers/base/dd.c:657
 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799
 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829
 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957
 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462
 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029
 bus_probe_device+0x185/0x260 drivers/base/bus.c:537
 device_add+0x7b6/0xb50 drivers/base/core.c:3692
 usb_new_device+0xa39/0x16c0 drivers/usb/core/hub.c:2694
 hub_port_connect drivers/usb/core/hub.c:5566 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5706 [inline]
 port_event drivers/usb/core/hub.c:5866 [inline]
 hub_event+0x2941/0x4a00 drivers/usb/core/hub.c:5948
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88805b8f2a20
 which belongs to the cache kmalloc-8 of size 8
The buggy address is located 1 bytes inside of
 allocated 7-byte region [ffff88805b8f2a20, ffff88805b8f2a27)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5b8f2
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801a441500 dead000000000100 dead000000000122
raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x152cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 27353, tgid 27350 (syz.6.9168), ts 2796399134352, free_ts 2795871657476
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419
 alloc_slab_page mm/slub.c:2451 [inline]
 allocate_slab+0x8a/0x3b0 mm/slub.c:2619
 new_slab mm/slub.c:2673 [inline]
 ___slab_alloc+0xbfc/0x1480 mm/slub.c:3859
 __slab_alloc mm/slub.c:3949 [inline]
 __slab_alloc_node mm/slub.c:4024 [inline]
 slab_alloc_node mm/slub.c:4185 [inline]
 __do_kmalloc_node mm/slub.c:4327 [inline]
 __kmalloc_node_track_caller_noprof+0x2f8/0x4e0 mm/slub.c:4347
 __kmemdup_nul mm/util.c:63 [inline]
 kstrdup+0x42/0x100 mm/util.c:83
 __kernfs_new_node+0x9c/0x7e0 fs/kernfs/dir.c:633
 kernfs_new_node+0x102/0x210 fs/kernfs/dir.c:713
 kernfs_create_dir_ns+0x44/0x130 fs/kernfs/dir.c:1083
 sysfs_create_dir_ns+0x123/0x280 fs/sysfs/dir.c:59
 create_dir lib/kobject.c:73 [inline]
 kobject_add_internal+0x59f/0xb40 lib/kobject.c:240
 kobject_add_varg lib/kobject.c:374 [inline]
 kobject_init_and_add+0x125/0x190 lib/kobject.c:457
 netdev_queue_add_kobject net/core/net-sysfs.c:1976 [inline]
 netdev_queue_update_kobjects+0x249/0x6c0 net/core/net-sysfs.c:2035
 register_queue_kobjects net/core/net-sysfs.c:2098 [inline]
 netdev_register_kobject+0x236/0x2f0 net/core/net-sysfs.c:2340
page last free pid 23 tgid 23 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0xc71/0xe70 mm/page_alloc.c:2706
 pagetable_free include/linux/mm.h:2884 [inline]
 pagetable_dtor_free include/linux/mm.h:2982 [inline]
 __tlb_remove_table+0x2d2/0x3b0 include/asm-generic/tlb.h:220
 __tlb_remove_table_free mm/mmu_gather.c:227 [inline]
 tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:290
 rcu_do_batch kernel/rcu/tree.c:2576 [inline]
 rcu_core+0xca8/0x1710 kernel/rcu/tree.c:2832
 handle_softirqs+0x286/0x870 kernel/softirq.c:579
 run_ksoftirqd+0x9b/0x100 kernel/softirq.c:968
 smpboot_thread_fn+0x53f/0xa60 kernel/smpboot.c:164
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff88805b8f2900: 00 fc fc fc fa fc fc fc fa fc fc fc 05 fc fc fc
 ffff88805b8f2980: 05 fc fc fc 06 fc fc fc fa fc fc fc fa fc fc fc
>ffff88805b8f2a00: fa fc fc fc 07 fc fc fc 06 fc fc fc fa fc fc fc
                               ^
 ffff88805b8f2a80: 05 fc fc fc 05 fc fc fc fa fc fc fc fa fc fc fc
 ffff88805b8f2b00: 05 fc fc fc 00 fc fc fc 06 fc fc fc 05 fc fc fc
==================================================================

Crashes (21):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/16 12:10 upstream 155a3c003e55 c118d736 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/16 04:48 upstream 155a3c003e55 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/15 12:14 upstream 155a3c003e55 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/13 09:11 upstream 3f31a806a62e 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/11 11:27 upstream bc9ff192a6c9 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/10 19:17 upstream 8c2e52ebbe88 19d4829f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/08 13:32 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/08 00:16 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/07 17:52 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/07 00:54 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/06 06:28 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/04 18:21 upstream 4c06e63b9203 d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/01 14:20 upstream 66701750d556 6e83b42d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/12 23:52 upstream 3f31a806a62e 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/06 05:13 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/14 03:44 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/10 20:12 linux-next b551c4e2a98a 19d4829f .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/09 18:40 linux-next 835244aba90d f4e5e155 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/09 12:13 linux-next 58ba80c47402 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/09 01:38 linux-next 58ba80c47402 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
2025/07/02 08:31 linux-next 1343433ed389 ffe4b334 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-out-of-bounds Read in mon_bin_event
* Struck through repros no longer work on HEAD.