================================================================== BUG: KASAN: slab-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline] BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:562 [inline] BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0x3d3/0x10b0 drivers/net/wireless/ath/ath9k/hif_usb.c:680 Read of size 48406 at addr ffff8880333a0000 by task syz-executor.4/4539 CPU: 0 PID: 4539 Comm: syz-executor.4 Not tainted 5.16.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x2ed mm/kasan/report.c:247 __kasan_report mm/kasan/report.c:433 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 memcpy+0x20/0x60 mm/kasan/shadow.c:65 memcpy include/linux/fortify-string.h:225 [inline] ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:562 [inline] ath9k_hif_usb_rx_cb+0x3d3/0x10b0 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x67c/0xa30 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194 Code: 74 24 10 e8 ea 05 15 f8 48 89 ef e8 a2 7b 15 f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 33 46 08 f8 65 8b 05 2c 9a bb 76 85 c0 74 0a 5b 5d c3 e8 a0 32 RSP: 0018:ffffc9000459fe20 EFLAGS: 00000206 RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1b21e01 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff88802827e008 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817d08b8 R11: 0000000000000000 R12: 0000000000000293 R13: ffff88802827e008 R14: fffffffffffffff0 R15: 1ffff920008b3fce spin_unlock_irqrestore include/linux/spinlock.h:404 [inline] raw_ioctl_ep0_stall drivers/usb/gadget/legacy/raw_gadget.c:751 [inline] raw_ioctl+0xed2/0x2690 drivers/usb/gadget/legacy/raw_gadget.c:1247 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f14d0b46c57 Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 04 54 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f14cf4ba098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f14cf4bb110 RCX: 00007f14d0b46c57 RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000004 RBP: 0000000000000004 R08: 000000000000f0ff R09: 000000000000000b R10: 00007f14cf4ba140 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000020000080 R15: 0000000000000868 Allocated by task 3689: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 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 mm/kasan/common.c:472 [inline] __kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:522 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0xde/0x340 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1127 [inline] ath9k_hif_usb_alloc_rx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:882 [inline] ath9k_hif_usb_alloc_urbs+0x689/0x1070 drivers/net/wireless/ath/ath9k/hif_usb.c:1012 ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1102 [inline] ath9k_hif_usb_firmware_cb+0x148/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1235 request_firmware_work_func+0x12c/0x230 drivers/base/firmware_loader/main.c:1022 process_one_work+0x9b2/0x1660 kernel/workqueue.c:2298 worker_thread+0x65d/0x1130 kernel/workqueue.c:2445 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 The buggy address belongs to the object at ffff8880333a0000 which belongs to the cache kmalloc-32k of size 32768 The buggy address is located 0 bytes inside of 32768-byte region [ffff8880333a0000, ffff8880333a8000) The buggy address belongs to the page: page:ffffea0000cce800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x333a0 head:ffffea0000cce800 order:4 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea0000c3d008 ffffea0000cce408 ffff888010c40c00 raw: 0000000000000000 ffff8880333a0000 0000000100000001 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 4, migratetype Unmovable, gfp_mask 0x3c20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_THISNODE), pid 3689, ts 189114695875, free_ts 174279830260 prep_new_page mm/page_alloc.c:2418 [inline] get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369 __alloc_pages_node include/linux/gfp.h:570 [inline] kmem_getpages mm/slab.c:1377 [inline] cache_grow_begin+0x75/0x470 mm/slab.c:2593 cache_alloc_refill+0x27f/0x380 mm/slab.c:2965 ____cache_alloc mm/slab.c:3048 [inline] ____cache_alloc mm/slab.c:3031 [inline] slab_alloc_node mm/slab.c:3249 [inline] kmem_cache_alloc_node_trace+0x49c/0x5b0 mm/slab.c:3617 __do_kmalloc_node mm/slab.c:3639 [inline] __kmalloc_node_track_caller+0x38/0x60 mm/slab.c:3654 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0xde/0x340 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1127 [inline] ath9k_hif_usb_alloc_rx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:882 [inline] ath9k_hif_usb_alloc_urbs+0x689/0x1070 drivers/net/wireless/ath/ath9k/hif_usb.c:1012 ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1102 [inline] ath9k_hif_usb_firmware_cb+0x148/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1235 request_firmware_work_func+0x12c/0x230 drivers/base/firmware_loader/main.c:1022 process_one_work+0x9b2/0x1660 kernel/workqueue.c:2298 worker_thread+0x65d/0x1130 kernel/workqueue.c:2445 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1338 [inline] free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389 free_unref_page_prepare mm/page_alloc.c:3309 [inline] free_unref_page+0x19/0x690 mm/page_alloc.c:3388 slab_destroy mm/slab.c:1627 [inline] slabs_destroy+0x89/0xc0 mm/slab.c:1647 cache_flusharray mm/slab.c:3418 [inline] ___cache_free+0x4cc/0x610 mm/slab.c:3480 qlink_free mm/kasan/quarantine.c:146 [inline] qlist_free_all+0x4e/0x110 mm/kasan/quarantine.c:165 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0x97/0xb0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slab.c:3261 [inline] kmem_cache_alloc_node+0x2ea/0x590 mm/slab.c:3599 __alloc_skb+0x215/0x340 net/core/skbuff.c:414 alloc_skb_fclone include/linux/skbuff.h:1177 [inline] tcp_stream_alloc_skb+0x66/0x910 net/ipv4/tcp.c:861 tcp_sendmsg_locked+0xaba/0x3050 net/ipv4/tcp.c:1281 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1440 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 sock_write_iter+0x289/0x3c0 net/socket.c:1057 call_write_iter include/linux/fs.h:2162 [inline] new_sync_write+0x429/0x660 fs/read_write.c:503 Memory state around the buggy address: ffff8880333a7f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880333a7f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880333a8000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8880333a8080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880333a8100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 24 10 and $0x10,%al 2: e8 ea 05 15 f8 callq 0xf81505f1 7: 48 89 ef mov %rbp,%rdi a: e8 a2 7b 15 f8 callq 0xf8157bb1 f: 81 e3 00 02 00 00 and $0x200,%ebx 15: 75 25 jne 0x3c 17: 9c pushfq 18: 58 pop %rax 19: f6 c4 02 test $0x2,%ah 1c: 75 2d jne 0x4b 1e: 48 85 db test %rbx,%rbx 21: 74 01 je 0x24 23: fb sti 24: bf 01 00 00 00 mov $0x1,%edi * 29: e8 33 46 08 f8 callq 0xf8084661 <-- trapping instruction 2e: 65 8b 05 2c 9a bb 76 mov %gs:0x76bb9a2c(%rip),%eax # 0x76bb9a61 35: 85 c0 test %eax,%eax 37: 74 0a je 0x43 39: 5b pop %rbx 3a: 5d pop %rbp 3b: c3 retq 3c: e8 .byte 0xe8 3d: a0 .byte 0xa0 3e: 32 .byte 0x32