Hello, syzbot found the following issue on: HEAD commit: 21266b8df522 Merge tag 'AT_EXECVE_CHECK-v6.14-rc1' of git:.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14bd9c24580000 kernel config: https://syzkaller.appspot.com/x/.config?x=f9e008bfc27b14db dashboard link: https://syzkaller.appspot.com/bug?extid=9c9179ac46169c56c1ad compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/5249b29d55f2/disk-21266b8d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8413507597a1/vmlinux-21266b8d.xz kernel image: https://storage.googleapis.com/syzbot-assets/9c84998b8cfb/bzImage-21266b8d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9c9179ac46169c56c1ad@xxxxxxxxxxxxxxxxxxxxxxxxx hid-thrustmaster 0003:044F:B65D.0004: hidraw0: USB HID v0.00 Device [HID 044f:b65d] on usb-dummy_hcd.2-1/input0 ================================================================== BUG: KASAN: stack-out-of-bounds in usb_check_int_endpoints+0x1fe/0x280 drivers/usb/core/usb.c:277 Read of size 1 at addr ffffc9000213e831 by task kworker/1:1/80 CPU: 1 UID: 0 PID: 80 Comm: kworker/1:1 Not tainted 6.13.0-syzkaller-04858-g21266b8df522 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: usb_hub_wq hub_event Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x169/0x550 mm/kasan/report.c:489 kasan_report+0x143/0x180 mm/kasan/report.c:602 usb_check_int_endpoints+0x1fe/0x280 drivers/usb/core/usb.c:277 thrustmaster_interrupts drivers/hid/hid-thrustmaster.c:176 [inline] thrustmaster_probe+0x47d/0xcb0 drivers/hid/hid-thrustmaster.c:347 __hid_device_probe drivers/hid/hid-core.c:2713 [inline] hid_device_probe+0x3bf/0x710 drivers/hid/hid-core.c:2750 really_probe+0x2b9/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:459 __device_attach+0x333/0x520 drivers/base/dd.c:1030 bus_probe_device+0x189/0x260 drivers/base/bus.c:534 device_add+0x856/0xbf0 drivers/base/core.c:3665 hid_add_device+0x3b6/0x520 drivers/hid/hid-core.c:2896 usbhid_probe+0xb52/0xec0 drivers/hid/usbhid/hid-core.c:1431 usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396 really_probe+0x2b9/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:459 __device_attach+0x333/0x520 drivers/base/dd.c:1030 bus_probe_device+0x189/0x260 drivers/base/bus.c:534 device_add+0x856/0xbf0 drivers/base/core.c:3665 usb_set_configuration+0x1976/0x1fb0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x88/0x140 drivers/usb/core/generic.c:254 usb_probe_device+0x1b8/0x380 drivers/usb/core/driver.c:291 really_probe+0x2b9/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:459 __device_attach+0x333/0x520 drivers/base/dd.c:1030 bus_probe_device+0x189/0x260 drivers/base/bus.c:534 device_add+0x856/0xbf0 drivers/base/core.c:3665 usb_new_device+0x104a/0x19a0 drivers/usb/core/hub.c:2651 hub_port_connect drivers/usb/core/hub.c:5523 [inline] hub_port_connect_change drivers/usb/core/hub.c:5663 [inline] port_event drivers/usb/core/hub.c:5823 [inline] hub_event+0x2d6d/0x5150 drivers/usb/core/hub.c:5905 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> The buggy address belongs to stack of task kworker/1:1/80 and is located at offset 49 in frame: thrustmaster_probe+0x0/0xcb0 This frame has 2 objects: [32, 36) 'trans.i' [48, 49) 'ep_addr.i' The buggy address belongs to the virtual mapping at [ffffc90002138000, ffffc90002141000) created by: copy_process+0x5d1/0x3d50 kernel/fork.c:2221 The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1fa96 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 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 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 51, tgid 51 (kworker/u8:3), ts 3826283846, free_ts 0 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1558 prep_new_page mm/page_alloc.c:1566 [inline] get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3476 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753 alloc_pages_mpol_noprof+0x3e1/0x780 mm/mempolicy.c:2269 vm_area_alloc_pages mm/vmalloc.c:3591 [inline] __vmalloc_area_node mm/vmalloc.c:3669 [inline] __vmalloc_node_range_noprof+0x9c9/0x1380 mm/vmalloc.c:3846 alloc_thread_stack_node kernel/fork.c:314 [inline] dup_task_struct+0x444/0x8c0 kernel/fork.c:1116 copy_process+0x5d1/0x3d50 kernel/fork.c:2221 kernel_clone+0x226/0x8e0 kernel/fork.c:2803 user_mode_thread+0x132/0x1a0 kernel/fork.c:2881 call_usermodehelper_exec_work+0x5c/0x230 kernel/umh.c:171 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 page_owner free stack trace missing Memory state around the buggy address: ffffc9000213e700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000213e780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffc9000213e800: f1 f1 f1 f1 04 f2 01 f3 00 00 00 00 00 00 00 00 ^ ffffc9000213e880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000213e900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
