syzbot


KASAN: use-after-free Read in __usb_hcd_giveback_urb (2)

Status: upstream: reported on 2025/10/17 22:12
Reported-by: syzbot+73e333a05123ab537934@syzkaller.appspotmail.com
First crash: 140d, last: 1d18h
Similar bugs (7)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 KASAN: use-after-free Read in __usb_hcd_giveback_urb 19 39 258d 847d 0/3 auto-obsoleted due to no activity on 2025/09/30 06:38
upstream KASAN: use-after-free Read in __usb_hcd_giveback_urb (2) usb 19 1 1192d 1187d 0/29 auto-obsoleted due to no activity on 2023/03/31 19:51
upstream KASAN: use-after-free Read in __usb_hcd_giveback_urb usb 19 1 2039d 2038d 0/29 auto-closed as invalid on 2020/12/04 05:52
linux-6.1 KASAN: use-after-free Read in __usb_hcd_giveback_urb 19 syz error 30 2d07h 700d 0/3 upstream: reported syz repro on 2024/04/06 03:35
upstream KASAN: slab-use-after-free Read in __usb_hcd_giveback_urb usb 19 1 930d 929d 0/29 auto-obsoleted due to no activity on 2023/11/28 05:12
upstream KASAN: slab-use-after-free Read in __usb_hcd_giveback_urb (2) usb 22 316 1d01h 715d 0/29 upstream: reported on 2024/03/22 17:26
linux-6.6 KASAN: slab-use-after-free Read in __usb_hcd_giveback_urb 19 16 10d 240d 0/2 upstream: reported on 2025/07/10 08:57

Sample crash report:
xpad 2-1:179.65: xpad_irq_in - usb_submit_urb failed with result -19
xpad 2-1:179.65: xpad_irq_out - usb_submit_urb failed with result -19
==================================================================
BUG: KASAN: use-after-free in debug_spin_lock_before kernel/locking/spinlock_debug.c:85 [inline]
BUG: KASAN: use-after-free in do_raw_spin_lock+0x283/0x2f0 kernel/locking/spinlock_debug.c:114
Read of size 4 at addr ffff88801a5ba05c by task syz.3.300/5160

CPU: 0 PID: 5160 Comm: syz.3.300 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <IRQ>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 print_address_description+0x60/0x2d0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xdf/0x130 mm/kasan/report.c:451
 debug_spin_lock_before kernel/locking/spinlock_debug.c:85 [inline]
 do_raw_spin_lock+0x283/0x2f0 kernel/locking/spinlock_debug.c:114
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:117 [inline]
 _raw_spin_lock_irqsave+0xbc/0x100 kernel/locking/spinlock.c:162
 __wake_up_common_lock kernel/sched/wait.c:137 [inline]
 __wake_up+0xf4/0x180 kernel/sched/wait.c:157
 __usb_hcd_giveback_urb+0x396/0x520 drivers/usb/core/hcd.c:1677
 dummy_timer+0x8a8/0x31e0 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
 expire_timers kernel/time/timer.c:1699 [inline]
 __run_timers+0x53e/0x800 kernel/time/timer.c:1970
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:console_unlock+0xcad/0x1120 kernel/printk/printk.c:2749
Code: 75 11 e8 36 da 18 00 4d 85 ff 75 16 e8 2c da 18 00 eb 15 e8 25 da 18 00 e8 e0 21 5c 08 4d 85 ff 74 ea e8 16 da 18 00 fb 31 ff <89> de e8 6c dd 18 00 85 db 0f 94 c0 22 44 24 17 3c 01 75 1f e8 fa
RSP: 0018:ffffc900032bdee0 EFLAGS: 00000246
RAX: ffffffff816046fa RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000cf21000 RSI: 000000000000d642 RDI: 0000000000000000
RBP: ffffc900032be150 R08: ffffffff901d40c7 R09: 1ffffffff203a818
R10: dffffc0000000000 R11: fffffbfff203a819 R12: 1ffffffff198d6fd
R13: 0000000000000061 R14: 0000000000000000 R15: 0000000000000200
 vprintk_emit+0xc0/0x150 kernel/printk/printk.c:2274
 dev_vprintk_emit+0x2e1/0x380 drivers/base/core.c:4638
 dev_printk_emit+0xeb/0x140 drivers/base/core.c:4649
 __netdev_printk+0x2ef/0x3d0 net/core/dev.c:11530
 netdev_info+0x11b/0x170 net/core/dev.c:11585
 nsim_udp_tunnel_set_port+0x293/0x430 drivers/net/netdevsim/udp_tunnels.c:34
 udp_tunnel_nic_device_sync_one net/ipv4/udp_tunnel_nic.c:-1 [inline]
 udp_tunnel_nic_device_sync_by_port net/ipv4/udp_tunnel_nic.c:246 [inline]
 __udp_tunnel_nic_device_sync+0x9db/0x12e0 net/ipv4/udp_tunnel_nic.c:289
 udp_tunnel_nic_device_sync net/ipv4/udp_tunnel_nic.c:312 [inline]
 __udp_tunnel_nic_add_port+0xb83/0xe80 net/ipv4/udp_tunnel_nic.c:531
 udp_tunnel_nic_add_port include/net/udp_tunnel.h:336 [inline]
 udp_tunnel_notify_add_rx_port+0x266/0x3a0 net/ipv4/udp_tunnel_core.c:130
 vxlan_socket_create drivers/net/vxlan/vxlan_core.c:3534 [inline]
 __vxlan_sock_add+0xa18/0x1030 drivers/net/vxlan/vxlan_core.c:3578
 vxlan_sock_add drivers/net/vxlan/vxlan_core.c:3614 [inline]
 vxlan_open+0x1a3/0x6e0 drivers/net/vxlan/vxlan_core.c:3091
 __dev_open+0x2bf/0x430 net/core/dev.c:1550
 __dev_change_flags+0x20d/0x6a0 net/core/dev.c:8879
 rtnl_configure_link+0x164/0x320 net/core/rtnetlink.c:3181
 __rtnl_newlink net/core/rtnetlink.c:3534 [inline]
 rtnl_newlink+0x15be/0x1a50 net/core/rtnetlink.c:3574
 rtnetlink_rcv_msg+0x844/0xf30 net/core/rtnetlink.c:5684
 netlink_rcv_skb+0x1f5/0x440 net/netlink/af_netlink.c:2507
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x774/0x920 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8ba/0xbe0 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:706 [inline]
 __sock_sendmsg net/socket.c:718 [inline]
 ____sys_sendmsg+0x5b7/0x8f0 net/socket.c:2445
 ___sys_sendmsg+0x236/0x2e0 net/socket.c:2499
 __sys_sendmmsg+0x2ba/0x500 net/socket.c:2585
 __do_sys_sendmmsg net/socket.c:2614 [inline]
 __se_sys_sendmmsg net/socket.c:2611 [inline]
 __x64_sys_sendmmsg+0x9c/0xb0 net/socket.c:2611
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f277c92e799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f277ab88028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f277cba7fa0 RCX: 00007f277c92e799
RDX: 040000000000009f RSI: 00002000000002c0 RDI: 0000000000000003
RBP: 00007f277c9c4bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f277cba8038 R14: 00007f277cba7fa0 R15: 00007fff5c47d9f8
 </TASK>

Allocated by task 1335:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc mm/kasan/common.c:513 [inline]
 __kasan_kmalloc+0xb5/0xf0 mm/kasan/common.c:522
 kmalloc include/linux/slab.h:607 [inline]
 kzalloc include/linux/slab.h:738 [inline]
 xpad_probe+0x3f6/0x1b20 drivers/input/joystick/xpad.c:1790
 usb_probe_interface+0x5c5/0xb20 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x284/0xc80 drivers/base/dd.c:595
 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a8/0x480 drivers/base/dd.c:979
 bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
 device_add+0xa00/0xfb0 drivers/base/core.c:3412
 usb_set_configuration+0x1991/0x1fd0 drivers/usb/core/message.c:2165
 usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x139/0x270 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x284/0xc80 drivers/base/dd.c:595
 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a8/0x480 drivers/base/dd.c:979
 bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
 device_add+0xa00/0xfb0 drivers/base/core.c:3412
 usb_new_device+0xd65/0x1660 drivers/usb/core/hub.c:2632
 hub_port_connect drivers/usb/core/hub.c:5497 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5637 [inline]
 port_event drivers/usb/core/hub.c:5799 [inline]
 hub_event+0x2e4a/0x55e0 drivers/usb/core/hub.c:5881
 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

Freed by task 5003:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1710 [inline]
 slab_free_freelist_hook+0xea/0x170 mm/slub.c:1736
 slab_free mm/slub.c:3504 [inline]
 kfree+0xef/0x2a0 mm/slub.c:4564
 xpad_disconnect+0x34c/0x470 drivers/input/joystick/xpad.c:1938
 usb_unbind_interface+0x1ee/0x860 drivers/usb/core/driver.c:458
 __device_release_driver drivers/base/dd.c:1229 [inline]
 device_release_driver_internal+0x4b4/0x750 drivers/base/dd.c:1262
 bus_remove_device+0x2e2/0x400 drivers/base/bus.c:531
 device_del+0x6af/0xaf0 drivers/base/core.c:3600
 usb_disable_device+0x3e2/0x890 drivers/usb/core/message.c:1414
 usb_disconnect+0x348/0x8a0 drivers/usb/core/hub.c:2287
 hub_port_connect drivers/usb/core/hub.c:5341 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5637 [inline]
 port_event drivers/usb/core/hub.c:5799 [inline]
 hub_event+0x1ecb/0x55e0 drivers/usb/core/hub.c:5881
 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

Last potentially related work creation:
 kasan_save_stack+0x35/0x60 mm/kasan/common.c:38
 kasan_record_aux_stack+0xb8/0x100 mm/kasan/generic.c:348
 insert_work+0x54/0x3d0 kernel/workqueue.c:1366
 __queue_work+0x9c5/0xd50 kernel/workqueue.c:1532
 queue_work_on+0x124/0x1f0 kernel/workqueue.c:1559
 queue_work include/linux/workqueue.h:512 [inline]
 schedule_work include/linux/workqueue.h:573 [inline]
 xpad360w_process_packet drivers/input/joystick/xpad.c:855 [inline]
 xpad_irq_in+0xaab/0x1b30 drivers/input/joystick/xpad.c:995
 __usb_hcd_giveback_urb+0x35f/0x520 drivers/usb/core/hcd.c:1674
 dummy_timer+0x8a8/0x31e0 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
 expire_timers kernel/time/timer.c:1699 [inline]
 __run_timers+0x53e/0x800 kernel/time/timer.c:1970
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676

Second to last potentially related work creation:
 kasan_save_stack+0x35/0x60 mm/kasan/common.c:38
 kasan_record_aux_stack+0xb8/0x100 mm/kasan/generic.c:348
 insert_work+0x54/0x3d0 kernel/workqueue.c:1366
 __queue_work+0x9c5/0xd50 kernel/workqueue.c:1532
 queue_work_on+0x124/0x1f0 kernel/workqueue.c:1559
 queue_work include/linux/workqueue.h:512 [inline]
 schedule_work include/linux/workqueue.h:573 [inline]
 xpad360w_process_packet drivers/input/joystick/xpad.c:855 [inline]
 xpad_irq_in+0xaab/0x1b30 drivers/input/joystick/xpad.c:995
 __usb_hcd_giveback_urb+0x35f/0x520 drivers/usb/core/hcd.c:1674
 dummy_timer+0x8a8/0x31e0 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
 expire_timers kernel/time/timer.c:1699 [inline]
 __run_timers+0x53e/0x800 kernel/time/timer.c:1970
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 do_softirq+0x142/0x210 kernel/softirq.c:477
 __local_bh_enable_ip+0x180/0x1c0 kernel/softirq.c:401
 wg_socket_send_skb_to_peer+0x167/0x1c0 drivers/net/wireguard/socket.c:184
 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline]
 wg_packet_tx_worker+0x1d3/0x790 drivers/net/wireguard/send.c:276
 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

The buggy address belongs to the object at ffff88801a5ba000
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 92 bytes inside of
 1024-byte region [ffff88801a5ba000, ffff88801a5ba400)
The buggy address belongs to the page:
page:ffffea0000696e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1a5b8
head:ffffea0000696e00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 0000000800000001 ffff888016c41dc0
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd28c0(GFP_NOWAIT|__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4186, ts 67110738792, free_ts 67076065273
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x1bbd/0x1ca0 mm/page_alloc.c:4192
 __alloc_pages+0x1ee/0x480 mm/page_alloc.c:5501
 alloc_slab_page mm/slub.c:1780 [inline]
 allocate_slab mm/slub.c:1917 [inline]
 new_slab+0xc0/0x4b0 mm/slub.c:1980
 ___slab_alloc+0x80a/0xdd0 mm/slub.c:3013
 __slab_alloc mm/slub.c:3100 [inline]
 slab_alloc_node mm/slub.c:3191 [inline]
 __kmalloc_node_track_caller+0x1fc/0x3a0 mm/slub.c:4963
 kmalloc_reserve net/core/skbuff.c:356 [inline]
 pskb_expand_head+0x127/0x10f0 net/core/skbuff.c:1709
 netlink_trim+0x180/0x220 net/netlink/af_netlink.c:1299
 netlink_broadcast_filtered+0x7c/0x1170 net/netlink/af_netlink.c:1511
 netlink_broadcast+0x33/0x40 net/netlink/af_netlink.c:1556
 devlink_register+0x50/0x80 net/core/devlink.c:8968
 nsim_dev_probe+0x433/0x9c0 drivers/net/netdevsim/dev.c:1473
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x284/0xc80 drivers/base/dd.c:595
 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
 free_unref_page+0x8f/0x2a0 mm/page_alloc.c:3396
 qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3225 [inline]
 slab_alloc mm/slub.c:3233 [inline]
 kmem_cache_alloc_trace+0x103/0x2a0 mm/slub.c:3250
 kmalloc include/linux/slab.h:607 [inline]
 netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:643 [inline]
 netdevice_event+0x324/0x900 drivers/infiniband/core/roce_gid_mgmt.c:802
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:391
 call_netdevice_notifiers_extack net/core/dev.c:2074 [inline]
 call_netdevice_notifiers net/core/dev.c:2088 [inline]
 register_netdevice+0x12a6/0x1710 net/core/dev.c:10454
 nsim_init_netdevsim drivers/net/netdevsim/netdev.c:317 [inline]
 nsim_create+0x32d/0x3e0 drivers/net/netdevsim/netdev.c:365
 __nsim_dev_port_add+0x698/0xab0 drivers/net/netdevsim/dev.c:1312
 nsim_dev_port_add_all+0x37/0x100 drivers/net/netdevsim/dev.c:1372
 nsim_dev_probe+0x763/0x9c0 drivers/net/netdevsim/dev.c:1513
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x284/0xc80 drivers/base/dd.c:595
 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:755

Memory state around the buggy address:
 ffff88801a5b9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88801a5b9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88801a5ba000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                    ^
 ffff88801a5ba080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88801a5ba100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
   0:	75 11                	jne    0x13
   2:	e8 36 da 18 00       	call   0x18da3d
   7:	4d 85 ff             	test   %r15,%r15
   a:	75 16                	jne    0x22
   c:	e8 2c da 18 00       	call   0x18da3d
  11:	eb 15                	jmp    0x28
  13:	e8 25 da 18 00       	call   0x18da3d
  18:	e8 e0 21 5c 08       	call   0x85c21fd
  1d:	4d 85 ff             	test   %r15,%r15
  20:	74 ea                	je     0xc
  22:	e8 16 da 18 00       	call   0x18da3d
  27:	fb                   	sti
  28:	31 ff                	xor    %edi,%edi
* 2a:	89 de                	mov    %ebx,%esi <-- trapping instruction
  2c:	e8 6c dd 18 00       	call   0x18dd9d
  31:	85 db                	test   %ebx,%ebx
  33:	0f 94 c0             	sete   %al
  36:	22 44 24 17          	and    0x17(%rsp),%al
  3a:	3c 01                	cmp    $0x1,%al
  3c:	75 1f                	jne    0x5d
  3e:	e8                   	.byte 0xe8
  3f:	fa                   	cli

Crashes (22):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/06 02:53 linux-5.15.y 91d48252ad4b 31e9c887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/02/26 02:50 linux-5.15.y 3330a8d33e08 e0f78d93 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/02/25 23:13 linux-5.15.y 3330a8d33e08 e0f78d93 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/02/24 11:52 linux-5.15.y 3330a8d33e08 96b1aa46 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/02/19 17:22 linux-5.15.y 3330a8d33e08 746545b8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/02/17 04:13 linux-5.15.y e45d5d41c134 e439b951 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/02/11 12:16 linux-5.15.y 7b232985052f 75707236 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/02/06 04:52 linux-5.15.y 9eec9a14ee10 f03c4191 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/02/05 11:01 linux-5.15.y 9eec9a14ee10 4936e85c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/01/31 14:06 linux-5.15.y 9eec9a14ee10 afc0c4d4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/01/28 01:24 linux-5.15.y 9eec9a14ee10 3029c699 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/01/20 12:50 linux-5.15.y 9eec9a14ee10 06648d9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2026/01/17 01:58 linux-5.15.y 68efe5a6c16a 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2025/12/31 18:38 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2025/12/22 07:21 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2025/12/17 00:18 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2025/12/03 11:36 linux-5.15.y cc5ec8769306 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2025/11/30 06:54 linux-5.15.y cc5ec8769306 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2025/11/01 12:22 linux-5.15.y cc5ec8769306 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2025/10/21 12:11 linux-5.15.y ac56c046adf4 9832ed61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2025/10/21 03:35 linux-5.15.y ac56c046adf4 9832ed61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
2025/10/17 22:12 linux-5.15.y 29e53a5b1c4f 1c8c8cd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: use-after-free Read in __usb_hcd_giveback_urb
* Struck through repros no longer work on HEAD.