radio-si470x 3-1:0.0: non-zero urb status (-71) ================================================================== BUG: KASAN: use-after-free in si470x_int_in_callback.cold+0x96/0xbf drivers/media/radio/si470x/radio-si470x-usb.c:378 Read of size 8 at addr ffff8880735ca9c0 by task kworker/1:8/13302 CPU: 1 PID: 13302 Comm: kworker/1:8 Not tainted 6.1.0-rc8-syzkaller-00154-g296a7b7eb792 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15e/0x45d mm/kasan/report.c:395 kasan_report+0xbf/0x1f0 mm/kasan/report.c:495 si470x_int_in_callback.cold+0x96/0xbf drivers/media/radio/si470x/radio-si470x-usb.c:378 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1671 usb_hcd_giveback_urb+0x384/0x430 drivers/usb/core/hcd.c:1754 dummy_timer+0x1203/0x32d0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1da/0x7c0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x6a2/0xaf0 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [inline] run_timer_softirq+0xb7/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x1fb/0xadc kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:200 Code: 76 96 86 02 66 0f 1f 44 00 00 f3 0f 1e fa 48 8b be a8 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1e fa 65 8b 05 75 61 82 7e 89 c1 48 8b 34 24 81 e1 00 01 00 RSP: 0018:ffffc900081aee60 EFLAGS: 00000246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9001315c000 RDX: 0000000000040000 RSI: ffffffff81653525 RDI: 0000000000000007 RBP: ffffc900081af018 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff91983ea0 R14: 0000000000000200 R15: ffffffff8d026278 console_emit_next_record.constprop.0+0x4fb/0x840 arch/x86/include/asm/irqflags.h:45 console_flush_all kernel/printk/printk.c:2793 [inline] console_unlock+0x3c2/0x600 kernel/printk/printk.c:2860 vprintk_emit+0x1bd/0x600 kernel/printk/printk.c:2268 vprintk+0x84/0xa0 kernel/printk/printk_safe.c:50 _printk+0xbe/0xf1 kernel/printk/printk.c:2289 call_driver_probe drivers/base/dd.c:576 [inline] really_probe.cold+0x69/0x175 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e8/0x2a0 drivers/base/bus.c:487 device_add+0xbd9/0x1e90 drivers/base/core.c:3517 usb_set_configuration+0x101d/0x1900 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0xbe/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd8/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e8/0x2a0 drivers/base/bus.c:487 device_add+0xbd9/0x1e90 drivers/base/core.c:3517 usb_new_device.cold+0x685/0x10ad drivers/usb/core/hub.c:2573 hub_port_connect drivers/usb/core/hub.c:5353 [inline] hub_port_connect_change drivers/usb/core/hub.c:5497 [inline] port_event drivers/usb/core/hub.c:5653 [inline] hub_event+0x26cb/0x45d0 drivers/usb/core/hub.c:5735 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Allocated by task 13302: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:371 [inline] ____kasan_kmalloc mm/kasan/common.c:330 [inline] __kasan_kmalloc+0xa5/0xb0 mm/kasan/common.c:380 kmalloc include/linux/slab.h:553 [inline] kzalloc include/linux/slab.h:689 [inline] si470x_usb_driver_probe+0x55/0xfa0 drivers/media/radio/si470x/radio-si470x-usb.c:573 usb_probe_interface+0x30f/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e8/0x2a0 drivers/base/bus.c:487 device_add+0xbd9/0x1e90 drivers/base/core.c:3517 usb_set_configuration+0x101d/0x1900 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0xbe/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd8/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e8/0x2a0 drivers/base/bus.c:487 device_add+0xbd9/0x1e90 drivers/base/core.c:3517 usb_new_device.cold+0x685/0x10ad drivers/usb/core/hub.c:2573 hub_port_connect drivers/usb/core/hub.c:5353 [inline] hub_port_connect_change drivers/usb/core/hub.c:5497 [inline] port_event drivers/usb/core/hub.c:5653 [inline] hub_event+0x26cb/0x45d0 drivers/usb/core/hub.c:5735 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Freed by task 13302: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2e/0x40 mm/kasan/generic.c:511 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x160/0x1c0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1750 slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0xaf/0x3b0 mm/slub.c:3674 si470x_usb_driver_probe+0xb41/0xfa0 drivers/media/radio/si470x/radio-si470x-usb.c:760 usb_probe_interface+0x30f/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e8/0x2a0 drivers/base/bus.c:487 device_add+0xbd9/0x1e90 drivers/base/core.c:3517 usb_set_configuration+0x101d/0x1900 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0xbe/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd8/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:427 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008 bus_probe_device+0x1e8/0x2a0 drivers/base/bus.c:487 device_add+0xbd9/0x1e90 drivers/base/core.c:3517 usb_new_device.cold+0x685/0x10ad drivers/usb/core/hub.c:2573 hub_port_connect drivers/usb/core/hub.c:5353 [inline] hub_port_connect_change drivers/usb/core/hub.c:5497 [inline] port_event drivers/usb/core/hub.c:5653 [inline] hub_event+0x26cb/0x45d0 drivers/usb/core/hub.c:5735 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 The buggy address belongs to the object at ffff8880735ca000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 2496 bytes inside of 4096-byte region [ffff8880735ca000, ffff8880735cb000) The buggy address belongs to the physical page: page:ffffea0001cd7200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x735c8 head:ffffea0001cd7200 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffffea0000da4800 dead000000000002 ffff888012042140 raw: 0000000000000000 0000000000040004 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 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 10941, tgid 10936 (syz-executor.3), ts 1720534859925, free_ts 1720413246307 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x10b5/0x2d50 mm/page_alloc.c:4291 __alloc_pages+0x1cb/0x5b0 mm/page_alloc.c:5558 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2285 alloc_slab_page mm/slub.c:1794 [inline] allocate_slab+0x25f/0x350 mm/slub.c:1939 new_slab mm/slub.c:1992 [inline] ___slab_alloc+0xa91/0x1400 mm/slub.c:3180 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3279 slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x199/0x3e0 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc_node+0x4d/0xd0 mm/slab_common.c:962 kmalloc_node include/linux/slab.h:579 [inline] kvmalloc_node+0x43/0x1b0 mm/util.c:581 kvmalloc include/linux/slab.h:706 [inline] kvzalloc include/linux/slab.h:714 [inline] snd_rawmidi_runtime_create sound/core/rawmidi.c:177 [inline] open_substream+0x320/0x8c0 sound/core/rawmidi.c:341 rawmidi_open_priv+0x519/0x6f0 sound/core/rawmidi.c:389 snd_rawmidi_kernel_open+0x1b9/0x270 sound/core/rawmidi.c:429 midisynth_subscribe+0xf6/0x380 sound/core/seq/seq_midi.c:171 subscribe_port sound/core/seq/seq_ports.c:412 [inline] check_and_subscribe_port+0x89a/0xb80 sound/core/seq/seq_ports.c:495 snd_seq_port_connect+0x2ea/0x550 sound/core/seq/seq_ports.c:576 snd_seq_ioctl_subscribe_port+0x200/0x400 sound/core/seq/seq_clientmgr.c:1490 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1459 [inline] free_pcp_prepare+0x65c/0xd90 mm/page_alloc.c:1509 free_unref_page_prepare mm/page_alloc.c:3387 [inline] free_unref_page+0x1d/0x4d0 mm/page_alloc.c:3483 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x66/0x90 mm/kasan/common.c:302 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:737 [inline] slab_alloc_node mm/slub.c:3398 [inline] __kmem_cache_alloc_node+0x1ca/0x3e0 mm/slub.c:3437 kmalloc_trace+0x26/0x60 mm/slab_common.c:1045 kmalloc include/linux/slab.h:553 [inline] usb_control_msg+0xbd/0x4a0 drivers/usb/core/message.c:143 si470x_get_report+0xb5/0x120 drivers/media/radio/si470x/radio-si470x-usb.c:203 si470x_get_scratch_page_versions drivers/media/radio/si470x/radio-si470x-usb.c:338 [inline] si470x_usb_driver_probe.cold+0x1a4/0x7d5 drivers/media/radio/si470x/radio-si470x-usb.c:691 usb_probe_interface+0x30f/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:560 [inline] really_probe+0x249/0xb90 drivers/base/dd.c:639 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:936 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:427 Memory state around the buggy address: ffff8880735ca880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880735ca900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880735ca980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880735caa00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880735caa80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== ---------------- Code disassembly (best guess): 0: 76 96 jbe 0xffffff98 2: 86 02 xchg %al,(%rdx) 4: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) a: f3 0f 1e fa endbr64 e: 48 8b be a8 01 00 00 mov 0x1a8(%rsi),%rdi 15: e8 b0 ff ff ff callq 0xffffffca 1a: 31 c0 xor %eax,%eax 1c: c3 retq 1d: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 24: 00 00 00 00 28: 66 90 xchg %ax,%ax * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 65 8b 05 75 61 82 7e mov %gs:0x7e826175(%rip),%eax # 0x7e8261aa 35: 89 c1 mov %eax,%ecx 37: 48 8b 34 24 mov (%rsp),%rsi 3b: 81 .byte 0x81 3c: e1 00 loope 0x3e 3e: 01 00 add %eax,(%rax)