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get_vaddr_frames() cannot follow VM_IO mapping
WARNING: CPU: 1 PID: 5970 at drivers/media/common/videobuf2/frame_vector.c:63 get_vaddr_frames+0x1e8/0x22c drivers/media/common/videobuf2/frame_vector.c:63
Modules linked in:
CPU: 1 PID: 5970 Comm: syz-executor368 Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : get_vaddr_frames+0x1e8/0x22c drivers/media/common/videobuf2/frame_vector.c:63
lr : get_vaddr_frames+0x1e8/0x22c drivers/media/common/videobuf2/frame_vector.c:63
sp : ffff8000965b72f0
x29: ffff8000965b72f0 x28: ffff0000d9421860 x27: 0000000000000000
x26: dfff800000000000 x25: 1fffe0001b734800 x24: dfff800000000000
x23: 00000000000002a4 x22: 1fffe0001b734800 x21: ffff0000db9a4004
x20: 00000000fffffff2 x19: ffff800090b09000 x18: ffff8000965b67c0
x17: 0000000000000000 x16: ffff80008a443320 x15: 0000000000000002
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : 9320ddb40de06d00
x8 : 9320ddb40de06d00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000965b6bd8 x4 : ffff80008df9ee80 x3 : ffff800080597614
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 get_vaddr_frames+0x1e8/0x22c drivers/media/common/videobuf2/frame_vector.c:63
 vb2_create_framevec+0x5c/0xd8 drivers/media/common/videobuf2/videobuf2-memops.c:52
 vb2_vmalloc_get_userptr+0xfc/0x418 drivers/media/common/videobuf2/videobuf2-vmalloc.c:89
 __prepare_userptr drivers/media/common/videobuf2/videobuf2-core.c:1180 [inline]
 __buf_prepare+0x9b0/0x3708 drivers/media/common/videobuf2/videobuf2-core.c:1422
 vb2_core_prepare_buf+0xe4/0x308 drivers/media/common/videobuf2/videobuf2-core.c:1561
 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:2156
 __video_do_ioctl+0x7f4/0xb68 drivers/media/v4l2-core/v4l2-ioctl.c:3044
 video_usercopy+0xa00/0x1124 drivers/media/v4l2-core/v4l2-ioctl.c:3385
 video_ioctl2+0x3c/0x50 drivers/media/v4l2-core/v4l2-ioctl.c:3439
 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+0x138/0x244 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191
 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 12810
hardirqs last  enabled at (12809): [<ffff800080351108>] __up_console_sem+0x60/0xb4 kernel/printk/printk.c:347
hardirqs last disabled at (12810): [<ffff80008a43ed34>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:407
softirqs last  enabled at (11988): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (11988): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:600
softirqs last disabled at (11979): [<ffff80008002b660>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---