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get_vaddr_frames() cannot follow VM_IO mapping
WARNING: CPU: 0 PID: 8479 at drivers/media/common/videobuf2/frame_vector.c:59 get_vaddr_frames+0x1d8/0x21c drivers/media/common/videobuf2/frame_vector.c:59
Modules linked in:
CPU: 0 PID: 8479 Comm: syz-executor.2 Not tainted 6.1.40-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : get_vaddr_frames+0x1d8/0x21c drivers/media/common/videobuf2/frame_vector.c:59
lr : get_vaddr_frames+0x1d8/0x21c drivers/media/common/videobuf2/frame_vector.c:59
sp : ffff80002b3a7300
x29: ffff80002b3a7300 x28: ffff0000da9c3860 x27: 0000000000000000
x26: dfff800000000000 x25: ffff80002b3a7678 x24: 1ffff000057a0600
x23: dfff800000000000 x22: 1ffff000057a0600 x21: ffff80002bd03004
x20: 00000000fffffff2 x19: ffff800017ee8000 x18: 1fffe000368b5976
x17: ffff8000155cd000 x16: ffff800008303878 x15: ffff0001b45acbbc
x14: 1ffff00002aba0b0 x13: dfff800000000000 x12: 0000000000000003
x11: ff8080000aac6fa8 x10: 0000000000000003 x9 : 782ec3781233fb00
x8 : 782ec3781233fb00 x7 : ffff80000827b5d0 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff80001226c340 x0 : ffff80019f08b000
Call trace:
 get_vaddr_frames+0x1d8/0x21c drivers/media/common/videobuf2/frame_vector.c:59
 vb2_create_framevec+0x54/0xd0 drivers/media/common/videobuf2/videobuf2-memops.c:50
 vb2_vmalloc_get_userptr+0xe8/0x404 drivers/media/common/videobuf2/videobuf2-vmalloc.c:88
 __prepare_userptr drivers/media/common/videobuf2/videobuf2-core.c:1194 [inline]
 __buf_prepare+0x9b0/0x3708 drivers/media/common/videobuf2/videobuf2-core.c:1436
 vb2_core_prepare_buf+0xe4/0x308 drivers/media/common/videobuf2/videobuf2-core.c:1575
 vb2_prepare_buf+0xfc/0x174 drivers/media/common/videobuf2/videobuf2-v4l2.c:738
 v4l2_m2m_prepare_buf drivers/media/v4l2-core/v4l2-mem2mem.c:823 [inline]
 v4l2_m2m_ioctl_prepare_buf+0x174/0x428 drivers/media/v4l2-core/v4l2-mem2mem.c:1412
 v4l_prepare_buf+0xac/0xd8 drivers/media/v4l2-core/v4l2-ioctl.c:2148
 __video_do_ioctl+0x7f4/0xb68 drivers/media/v4l2-core/v4l2-ioctl.c:3037
 video_usercopy+0x938/0x10d4 drivers/media/v4l2-core/v4l2-ioctl.c:3384
 video_ioctl2+0x3c/0x50 drivers/media/v4l2-core/v4l2-ioctl.c:3431
 v4l2_ioctl+0x148/0x18c drivers/media/v4l2-core/v4l2-dev.c:364
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 1454
hardirqs last  enabled at (1453): [<ffff80000827b670>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last  enabled at (1453): [<ffff80000827b670>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000
hardirqs last disabled at (1454): [<ffff800012110804>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (1440): [<ffff800008020d74>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (1440): [<ffff800008020d74>] __do_softirq+0xc14/0xea0 kernel/softirq.c:600
softirqs last disabled at (1431): [<ffff80000802a994>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---