================================================================== BUG: KASAN: slab-out-of-bounds in ieee80211_monitor_select_queue+0x23a/0x240 net/mac80211/iface.c:909 Read of size 2 at addr ffff88802449edfb by task syz.1.8325/28126 CPU: 1 PID: 28126 Comm: syz.1.8325 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Call Trace: dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0xa8/0x210 mm/kasan/report.c:420 kasan_report+0x10b/0x140 mm/kasan/report.c:524 ieee80211_monitor_select_queue+0x23a/0x240 net/mac80211/iface.c:909 netdev_core_pick_tx+0x12c/0x360 net/core/dev.c:4245 __dev_queue_xmit+0xb45/0x3810 net/core/dev.c:4331 packet_snd net/packet/af_packet.c:3133 [inline] packet_sendmsg+0x3b95/0x4de0 net/packet/af_packet.c:3164 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5ed/0x9a0 net/socket.c:2519 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2573 __sys_sendmsg net/socket.c:2602 [inline] __do_sys_sendmsg net/socket.c:2611 [inline] __se_sys_sendmsg+0x1c3/0x2b0 net/socket.c:2609 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f6eb2f9de59 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:00007f6eb3df8028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f6eb3225fa0 RCX: 00007f6eb2f9de59 RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000000000000005 RBP: 00007f6eb3033e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6eb3226038 R14: 00007f6eb3225fa0 R15: 00007ffd61dbec18 Allocated by task 1: kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:53 ____kasan_kmalloc mm/kasan/common.c:375 [inline] __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384 kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:699 [inline] dummy_hcd_init+0x68e/0x1167 drivers/usb/gadget/udc/dummy_hcd.c:2839 do_one_initcall+0x257/0x800 init/main.c:1309 do_initcall_level+0x13d/0x1ed init/main.c:1382 do_initcalls+0x4b/0x8a init/main.c:1398 kernel_init_freeable+0x401/0x5ab init/main.c:1637 kernel_init+0x19/0x1b0 init/main.c:1525 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Last potentially related work creation: kasan_save_stack+0x3a/0x60 mm/kasan/common.c:46 __kasan_record_aux_stack+0xb2/0xc0 mm/kasan/generic.c:486 insert_work+0x54/0x3c0 kernel/workqueue.c:1361 __queue_work+0xae2/0xee0 kernel/workqueue.c:1520 queue_work_on+0x124/0x1f0 kernel/workqueue.c:1548 queue_work include/linux/workqueue.h:512 [inline] schedule_work include/linux/workqueue.h:573 [inline] usb_gadget_set_state+0xb1/0x310 drivers/usb/gadget/udc/core.c:1129 raw_ioctl_configure drivers/usb/gadget/legacy/raw_gadget.c:1155 [inline] raw_ioctl+0x15e8/0x3cd0 drivers/usb/gadget/legacy/raw_gadget.c:1286 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Second to last potentially related work creation: kasan_save_stack+0x3a/0x60 mm/kasan/common.c:46 __kasan_record_aux_stack+0xb2/0xc0 mm/kasan/generic.c:486 insert_work+0x54/0x3c0 kernel/workqueue.c:1361 __queue_work+0xae2/0xee0 kernel/workqueue.c:1520 queue_work_on+0x124/0x1f0 kernel/workqueue.c:1548 queue_work include/linux/workqueue.h:512 [inline] schedule_work include/linux/workqueue.h:573 [inline] usb_gadget_set_state+0xb1/0x310 drivers/usb/gadget/udc/core.c:1129 set_link_state+0x7fd/0x11d0 drivers/usb/gadget/udc/dummy_hcd.c:473 dummy_hub_control+0xaa1/0x1a90 drivers/usb/gadget/udc/dummy_hcd.c:-1 rh_call_control drivers/usb/core/hcd.c:681 [inline] rh_urb_enqueue drivers/usb/core/hcd.c:846 [inline] usb_hcd_submit_urb+0xe66/0x1970 drivers/usb/core/hcd.c:1554 usb_start_wait_urb+0x13c/0x580 drivers/usb/core/message.c:61 usb_internal_control_msg drivers/usb/core/message.c:116 [inline] usb_control_msg+0x231/0x3e0 drivers/usb/core/message.c:166 set_port_feature drivers/usb/core/hub.c:468 [inline] hub_port_reset+0x3bc/0x18d0 drivers/usb/core/hub.c:3073 hub_port_init+0xf23/0x2a40 drivers/usb/core/hub.c:5004 hub_port_connect drivers/usb/core/hub.c:5446 [inline] hub_port_connect_change drivers/usb/core/hub.c:5657 [inline] port_event drivers/usb/core/hub.c:5817 [inline] hub_event+0x270d/0x5200 drivers/usb/core/hub.c:5899 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 The buggy address belongs to the object at ffff88802449c000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 3579 bytes to the right of 8192-byte region [ffff88802449c000, ffff88802449e000) The buggy address belongs to the physical page: page:ffffea0000912600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x24498 head:ffffea0000912600 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea0001cd6c00 dead000000000003 ffff888017442280 raw: 0000000000000000 0000000080020002 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 8636372657, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2560 prep_new_page mm/page_alloc.c:2567 [inline] get_page_from_freelist+0x206b/0x2180 mm/page_alloc.c:4358 __alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5658 alloc_page_interleave+0x24/0x1e0 mm/mempolicy.c:2115 alloc_slab_page+0x5d/0x180 mm/slub.c:1799 allocate_slab mm/slub.c:1944 [inline] new_slab+0x87/0x2d0 mm/slub.c:1997 ___slab_alloc+0xbc5/0x1240 mm/slub.c:3154 __slab_alloc mm/slub.c:3240 [inline] slab_alloc_node mm/slub.c:3325 [inline] __kmem_cache_alloc_node+0x126/0x270 mm/slub.c:3398 __do_kmalloc_node mm/slab_common.c:935 [inline] __kmalloc+0xa3/0x240 mm/slab_common.c:949 kmalloc_array include/linux/slab.h:615 [inline] fb_show_logo_line drivers/video/fbdev/core/fbmem.c:492 [inline] fb_show_logo+0xf1c/0x1c10 drivers/video/fbdev/core/fbmem.c:696 fbcon_switch+0x153f/0x1f80 drivers/video/fbdev/core/fbcon.c:2195 redraw_screen+0x581/0x1000 drivers/tty/vt/vt.c:1021 do_bind_con_driver+0xe9d/0x1030 drivers/tty/vt/vt.c:3728 do_take_over_console+0x87c/0xa00 drivers/tty/vt/vt.c:4283 do_fbcon_takeover+0x119/0x200 drivers/video/fbdev/core/fbcon.c:535 do_fb_registered drivers/video/fbdev/core/fbcon.c:3048 [inline] fbcon_fb_registered+0x34a/0x5f0 drivers/video/fbdev/core/fbcon.c:3068 page_owner free stack trace missing Memory state around the buggy address: ffff88802449ec80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88802449ed00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88802449ed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88802449ee00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88802449ee80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================