usb 2-1: RX USB error -2. usb 2-1: error -1 when submitting rx urb ================================================================== BUG: KASAN: use-after-free in ar5523_cmd_tx_cb+0x220/0x240 drivers/net/wireless/ath/ar5523/ar5523.c:228 Read of size 8 at addr ffff888138903450 by task syz-executor.1/1302 CPU: 1 PID: 1302 Comm: syz-executor.1 Not tainted 5.19.0-syzkaller-13666-gffcf9c5700e4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:317 [inline] print_report.cold+0x2ba/0x719 mm/kasan/report.c:433 kasan_report+0xb1/0x1e0 mm/kasan/report.c:495 ar5523_cmd_tx_cb+0x220/0x240 drivers/net/wireless/ath/ar5523/ar5523.c:228 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1671 usb_hcd_giveback_urb+0x380/0x430 drivers/usb/core/hcd.c:1754 dummy_timer+0x11ff/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x1c0/0x9a9 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x113/0x170 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:crc32_body+0x1e6/0x5f0 lib/crc32.c:112 Code: c6 03 40 38 fe 7c 09 40 84 ff 0f 85 28 03 00 00 44 8b 01 0f b6 ce 49 8d 8c 8f 00 08 00 00 48 89 ce 48 c1 ee 03 42 0f b6 3c 26 <48> 89 ce 83 e6 07 83 c6 03 40 38 fe 7c 09 40 84 ff 0f 85 ba 02 00 RSP: 0018:ffffc9000111fa18 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: 000000006dd54898 RCX: ffffffff8662d980 RDX: 0000000000000000 RSI: 1ffffffff0cc5b30 RDI: 0000000000000000 RBP: 000000007c33b612 R08: 0000000000000000 R09: 00000000e64fe4b2 R10: 00000000e180b48f R11: 0000000000000000 R12: dffffc0000000000 R13: 000000000000011f R14: ffff8881381868fc R15: ffffffff8662d180 chksum_update+0x4c/0xb0 crypto/crct10dif_generic.c:56 crypto_shash_update+0xc4/0x120 crypto/shash.c:131 ext4_chksum fs/ext4/ext4.h:2465 [inline] ext4_dirblock_csum fs/ext4/namei.c:376 [inline] ext4_dirblock_csum_set fs/ext4/namei.c:424 [inline] ext4_handle_dirty_dirblock+0x2fc/0x470 fs/ext4/namei.c:432 ext4_delete_entry+0x39e/0x4c0 fs/ext4/namei.c:2707 __ext4_unlink+0x59c/0xa40 fs/ext4/namei.c:3225 ext4_unlink+0x59c/0x950 fs/ext4/namei.c:3278 vfs_unlink+0x351/0x920 fs/namei.c:4229 do_unlinkat+0x3cc/0x650 fs/namei.c:4297 __do_sys_unlink fs/namei.c:4345 [inline] __se_sys_unlink fs/namei.c:4343 [inline] __x64_sys_unlink+0xc6/0x110 fs/namei.c:4343 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+0x63/0xcd RIP: 0033:0x7f3b9ba65bb7 Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffee054d778 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3b9ba65bb7 RDX: 00007ffee054d7b0 RSI: 00007ffee054d7b0 RDI: 00007ffee054d840 RBP: 00007ffee054d840 R08: 0000000000000001 R09: 00007ffee054d610 R10: 0000555556cc1b43 R11: 0000000000000206 R12: 00007f3b9babf42e R13: 00007ffee054e900 R14: 0000555556cc1b00 R15: 00007ffee054e940 The buggy address belongs to the physical page: page:ffffea0004e240c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x138903 flags: 0x200000000000000(node=0|zone=2) raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 2, migratetype Unmovable, gfp_mask 0x140dc0(GFP_USER|__GFP_COMP|__GFP_ZERO), pid 4144, tgid 4144 (kworker/1:5), ts 1801169490361, free_ts 1803256105766 prep_new_page mm/page_alloc.c:2532 [inline] get_page_from_freelist+0x11cc/0x2a20 mm/page_alloc.c:4283 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5515 alloc_pages+0x1a6/0x270 mm/mempolicy.c:2270 kmalloc_order+0x34/0xf0 mm/slab_common.c:917 kmalloc_order_trace+0x13/0x120 mm/slab_common.c:933 kmalloc include/linux/slab.h:605 [inline] kzalloc include/linux/slab.h:733 [inline] wiphy_new_nm+0x6fc/0x2090 net/wireless/core.c:440 ieee80211_alloc_hw_nm+0x44b/0x2450 net/mac80211/main.c:668 ieee80211_alloc_hw include/net/mac80211.h:4511 [inline] ar5523_probe+0x11a/0x1d10 drivers/net/wireless/ath/ar5523/ar5523.c:1595 usb_probe_interface+0x30b/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:530 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:609 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:748 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:778 __device_attach_driver+0x206/0x2e0 drivers/base/dd.c:901 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:973 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1449 [inline] free_pcp_prepare+0x5d2/0xb80 mm/page_alloc.c:1499 free_unref_page_prepare mm/page_alloc.c:3380 [inline] free_unref_page+0x19/0x420 mm/page_alloc.c:3476 device_release+0x9f/0x240 drivers/base/core.c:2330 kobject_cleanup lib/kobject.c:673 [inline] kobject_release lib/kobject.c:704 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1be/0x4c0 lib/kobject.c:721 put_device+0x1b/0x30 drivers/base/core.c:3624 ar5523_probe+0xe38/0x1d10 drivers/net/wireless/ath/ar5523/ar5523.c:1719 usb_probe_interface+0x30b/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:530 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:609 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:748 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:778 __device_attach_driver+0x206/0x2e0 drivers/base/dd.c:901 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:973 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xbd5/0x1e90 drivers/base/core.c:3517 usb_set_configuration+0x1019/0x1900 drivers/usb/core/message.c:2170 Memory state around the buggy address: ffff888138903300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888138903380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff888138903400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff888138903480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff888138903500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== ---------------- Code disassembly (best guess): 0: c6 03 40 movb $0x40,(%rbx) 3: 38 fe cmp %bh,%dh 5: 7c 09 jl 0x10 7: 40 84 ff test %dil,%dil a: 0f 85 28 03 00 00 jne 0x338 10: 44 8b 01 mov (%rcx),%r8d 13: 0f b6 ce movzbl %dh,%ecx 16: 49 8d 8c 8f 00 08 00 lea 0x800(%r15,%rcx,4),%rcx 1d: 00 1e: 48 89 ce mov %rcx,%rsi 21: 48 c1 ee 03 shr $0x3,%rsi 25: 42 0f b6 3c 26 movzbl (%rsi,%r12,1),%edi * 2a: 48 89 ce mov %rcx,%rsi <-- trapping instruction 2d: 83 e6 07 and $0x7,%esi 30: 83 c6 03 add $0x3,%esi 33: 40 38 fe cmp %dil,%sil 36: 7c 09 jl 0x41 38: 40 84 ff test %dil,%dil 3b: 0f .byte 0xf 3c: 85 .byte 0x85 3d: ba .byte 0xba 3e: 02 00 add (%rax),%al