rc rc0: IR event FIFO is full!
rc rc0: IR event FIFO is full!
rc rc0: IR event FIFO is full!
rc rc0: IR event FIFO is full!
==================================================================
BUG: KASAN: use-after-free in ir_raw_event_store drivers/media/rc/rc-ir-raw.c:82 [inline]
BUG: KASAN: use-after-free in ir_raw_event_store_with_filter+0x61c/0x7ac drivers/media/rc/rc-ir-raw.c:185
Read of size 4 at addr ffff0000d8bec018 by task swapper/0/0

CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.153-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x174/0x1e4 mm/kasan/report.c:451
 __asan_report_load4_noabort+0x44/0x50 mm/kasan/report_generic.c:308
 ir_raw_event_store drivers/media/rc/rc-ir-raw.c:82 [inline]
 ir_raw_event_store_with_filter+0x61c/0x7ac drivers/media/rc/rc-ir-raw.c:185
 sz_push drivers/media/rc/streamzap.c:118 [inline]
 sz_push_full_space drivers/media/rc/streamzap.c:173 [inline]
 sz_push_half_space drivers/media/rc/streamzap.c:179 [inline]
 streamzap_callback+0x5e8/0xd68 drivers/media/rc/streamzap.c:231
 __usb_hcd_giveback_urb+0x2e0/0x518 drivers/usb/core/hcd.c:1674
 usb_hcd_giveback_urb+0x108/0x41c drivers/usb/core/hcd.c:1757
 dummy_timer+0x66c/0x26cc drivers/usb/gadget/udc/dummy_hcd.c:1987
 call_timer_fn+0x19c/0x8f0 kernel/time/timer.c:1421
 expire_timers kernel/time/timer.c:1466 [inline]
 __run_timers+0x554/0x718 kernel/time/timer.c:1737
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1750
 __do_softirq+0x344/0xdb0 kernel/softirq.c:558
 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
 invoke_softirq kernel/softirq.c:439 [inline]
 __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:637
 irq_exit+0x14/0x88 kernel/softirq.c:661
 handle_domain_irq+0xf4/0x178 kernel/irq/irqdesc.c:710
 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:758
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899
 do_interrupt_handler+0x74/0x94 arch/arm64/kernel/entry-common.c:267
 el1_interrupt+0x30/0x58 arch/arm64/kernel/entry-common.c:454
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:470
 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:580
 arch_local_irq_enable+0xc/0x18 arch/arm64/include/asm/irqflags.h:35
 default_idle_call+0xcc/0x4a8 kernel/sched/idle.c:112
 cpuidle_idle_call kernel/sched/idle.c:194 [inline]
 do_idle+0x1d4/0x4dc kernel/sched/idle.c:306
 cpu_startup_entry+0x24/0x28 kernel/sched/idle.c:403
 rest_init+0x364/0x38c init/main.c:739
 arch_call_rest_init+0x14/0x20 init/main.c:891
 start_kernel+0x440/0x600 init/main.c:1138
 __primary_switched+0xa8/0xb0 arch/arm64/kernel/head.S:468

Allocated by task 13:
 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+0xbc/0xfc mm/kasan/common.c:513
 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 kmem_cache_alloc_trace+0x27c/0x47c mm/slub.c:3247
 kmalloc include/linux/slab.h:591 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 ir_raw_event_prepare+0x60/0x27c drivers/media/rc/rc-ir-raw.c:619
 rc_register_device+0x2b0/0x1648 drivers/media/rc/rc-main.c:1920
 streamzap_init_rc_dev drivers/media/rc/streamzap.c:297 [inline]
 streamzap_probe+0x8cc/0x1070 drivers/media/rc/streamzap.c:393
 usb_probe_interface+0x500/0x984 drivers/usb/core/driver.c:396
 really_probe+0x26c/0xaec drivers/base/dd.c:595
 __driver_probe_device+0x194/0x3b4 drivers/base/dd.c:755
 driver_probe_device+0x78/0x34c drivers/base/dd.c:785
 __device_attach_driver+0x28c/0x4d8 drivers/base/dd.c:907
 bus_for_each_drv+0x158/0x1e0 drivers/base/bus.c:427
 __device_attach+0x2f0/0x480 drivers/base/dd.c:979
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1028
 bus_probe_device+0xbc/0x1c8 drivers/base/bus.c:487
 device_add+0xae0/0xef4 drivers/base/core.c:3394
 usb_set_configuration+0x15e0/0x1b60 drivers/usb/core/message.c:2165
 usb_generic_driver_probe+0x8c/0x148 drivers/usb/core/generic.c:238
 usb_probe_device+0x120/0x25c drivers/usb/core/driver.c:293
 really_probe+0x26c/0xaec drivers/base/dd.c:595
 __driver_probe_device+0x194/0x3b4 drivers/base/dd.c:755
 driver_probe_device+0x78/0x34c drivers/base/dd.c:785
 __device_attach_driver+0x28c/0x4d8 drivers/base/dd.c:907
 bus_for_each_drv+0x158/0x1e0 drivers/base/bus.c:427
 __device_attach+0x2f0/0x480 drivers/base/dd.c:979
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1028
 bus_probe_device+0xbc/0x1c8 drivers/base/bus.c:487
 device_add+0xae0/0xef4 drivers/base/core.c:3394
 usb_new_device+0x900/0x145c drivers/usb/core/hub.c:2584
 hub_port_connect drivers/usb/core/hub.c:5445 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5585 [inline]
 port_event drivers/usb/core/hub.c:5731 [inline]
 hub_event+0x2370/0x47d4 drivers/usb/core/hub.c:5813
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

Freed by task 3552:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4c/0x84 mm/kasan/common.c:46
 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360
 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366
 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kfree+0x178/0x410 mm/slub.c:4559
 ir_raw_event_free drivers/media/rc/rc-ir-raw.c:655 [inline]
 ir_raw_event_unregister+0x264/0x2b4 drivers/media/rc/rc-ir-raw.c:678
 rc_unregister_device+0x64/0x304 drivers/media/rc/rc-main.c:2021
 streamzap_disconnect+0xb4/0x180 drivers/media/rc/streamzap.c:459
 usb_unbind_interface+0x1a4/0x758 drivers/usb/core/driver.c:458
 __device_release_driver drivers/base/dd.c:1229 [inline]
 device_release_driver_internal+0x464/0x6ac drivers/base/dd.c:1262
 device_release_driver+0x28/0x38 drivers/base/dd.c:1285
 bus_remove_device+0x298/0x38c drivers/base/bus.c:529
 device_del+0x57c/0x9b4 drivers/base/core.c:3582
 usb_disable_device+0x354/0x760 drivers/usb/core/message.c:1414
 usb_disconnect+0x290/0x7e8 drivers/usb/core/hub.c:2239
 hub_port_connect drivers/usb/core/hub.c:5289 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5585 [inline]
 port_event drivers/usb/core/hub.c:5731 [inline]
 hub_event+0x1718/0x47d4 drivers/usb/core/hub.c:5813
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

The buggy address belongs to the object at ffff0000d8bec000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 24 bytes inside of
 8192-byte region [ffff0000d8bec000, ffff0000d8bee000)
The buggy address belongs to the page:
page:0000000045831c20 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x118be8
head:0000000045831c20 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c0002c00
raw: 0000000000000000 0000000080020002 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d8bebf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000d8bebf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff0000d8bec000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                            ^
 ffff0000d8bec080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000d8bec100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
Unable to handle kernel paging request at virtual address dfff80000000021b
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
[dfff80000000021b] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G    B             5.15.153-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : ir_raw_event_store_with_filter+0x354/0x7ac drivers/media/rc/rc-ir-raw.c:186
lr : ir_raw_event_store drivers/media/rc/rc-ir-raw.c:82 [inline]
lr : ir_raw_event_store_with_filter+0x6e0/0x7ac drivers/media/rc/rc-ir-raw.c:185
sp : ffff8000080074e0
x29: ffff800008007500 x28: 00000000000002da x27: 1fffe0001b5900d3
x26: dfff800000000000 x25: ffff0000d8bec018 x24: 00000000000010d8
x23: 00000000000010d8 x22: 0000000000000080 x21: ffff8000080076a0
x20: ffff0000dac80698 x19: ffff0000dac80000 x18: 0000000000000103
x17: 0000000000000000 x16: ffff80000824dad4 x15: 00000000ffffffff
x14: ffff800014933e00 x13: 0000000000000001 x12: ffff700002de2564
x11: 0000000000000101 x10: 0000000000000000 x9 : ffff8000184623d0
x8 : 000000000000021b x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800008006b78 x4 : ffff8000149ef7a0 x3 : ffff80000e1f11cc
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000000
Call trace:
 ir_raw_event_store_with_filter+0x354/0x7ac drivers/media/rc/rc-ir-raw.c:186
 sz_push drivers/media/rc/streamzap.c:118 [inline]
 sz_push_full_space drivers/media/rc/streamzap.c:173 [inline]
 sz_push_half_space drivers/media/rc/streamzap.c:179 [inline]
 streamzap_callback+0x5e8/0xd68 drivers/media/rc/streamzap.c:231
 __usb_hcd_giveback_urb+0x2e0/0x518 drivers/usb/core/hcd.c:1674
 usb_hcd_giveback_urb+0x108/0x41c drivers/usb/core/hcd.c:1757
 dummy_timer+0x66c/0x26cc drivers/usb/gadget/udc/dummy_hcd.c:1987
 call_timer_fn+0x19c/0x8f0 kernel/time/timer.c:1421
 expire_timers kernel/time/timer.c:1466 [inline]
 __run_timers+0x554/0x718 kernel/time/timer.c:1737
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1750
 __do_softirq+0x344/0xdb0 kernel/softirq.c:558
 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
 invoke_softirq kernel/softirq.c:439 [inline]
 __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:637
 irq_exit+0x14/0x88 kernel/softirq.c:661
 handle_domain_irq+0xf4/0x178 kernel/irq/irqdesc.c:710
 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:758
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899
 do_interrupt_handler+0x74/0x94 arch/arm64/kernel/entry-common.c:267
 el1_interrupt+0x30/0x58 arch/arm64/kernel/entry-common.c:454
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:470
 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:580
 arch_local_irq_enable+0xc/0x18 arch/arm64/include/asm/irqflags.h:35
 default_idle_call+0xcc/0x4a8 kernel/sched/idle.c:112
 cpuidle_idle_call kernel/sched/idle.c:194 [inline]
 do_idle+0x1d4/0x4dc kernel/sched/idle.c:306
 cpu_startup_entry+0x24/0x28 kernel/sched/idle.c:403
 rest_init+0x364/0x38c init/main.c:739
 arch_call_rest_init+0x14/0x20 init/main.c:891
 start_kernel+0x440/0x600 init/main.c:1138
 __primary_switched+0xa8/0xb0 arch/arm64/kernel/head.S:468
Code: 38fa6908 35001428 d343fee8 f94002b6 (387a6908) 
---[ end trace eac219229314670b ]---
----------------
Code disassembly (best guess):
   0:	38fa6908 	ldrsb	w8, [x8, x26]
   4:	35001428 	cbnz	w8, 0x288
   8:	d343fee8 	lsr	x8, x23, #3
   c:	f94002b6 	ldr	x22, [x21]
* 10:	387a6908 	ldrb	w8, [x8, x26] <-- trapping instruction