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BUG: KASAN: null-ptr-deref in fuse_copy_one fs/fuse/dev.c:1065 [inline]
BUG: KASAN: null-ptr-deref in fuse_copy_args+0x23c/0x6c8 fs/fuse/dev.c:1083
Read of size 32 at addr 0000000000000000 by task syz.1.552/9016

CPU: 0 UID: 0 PID: 9016 Comm: syz.1.552 Not tainted 6.13.0-rc2-syzkaller-g2e7aff49b5da #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120
 print_report+0xf8/0x538 mm/kasan/report.c:492
 kasan_report+0xd8/0x138 mm/kasan/report.c:602
 kasan_check_range+0x268/0x2a8 mm/kasan/generic.c:189
 __asan_memcpy+0x3c/0x84 mm/kasan/shadow.c:105
 fuse_copy_one fs/fuse/dev.c:1065 [inline]
 fuse_copy_args+0x23c/0x6c8 fs/fuse/dev.c:1083
 fuse_dev_do_read+0xab4/0x103c fs/fuse/dev.c:1357
 fuse_dev_read+0x150/0x1ec fs/fuse/dev.c:1424
 new_sync_read fs/read_write.c:484 [inline]
 vfs_read+0x740/0x970 fs/read_write.c:565
 ksys_read+0x15c/0x26c fs/read_write.c:708
 __do_sys_read fs/read_write.c:717 [inline]
 __se_sys_read fs/read_write.c:715 [inline]
 __arm64_sys_read+0x7c/0x90 fs/read_write.c:715
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
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