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151ca068c0
force_page_cache_ra did not perform parameter checking when calling fscryptnode_uses_fs_layer_crypto, resulting in illegal memory access. Bug: Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000011 pc : __fscrypt_inode_uses_inline_crypto+0x4/0xc lr : force_page_cache_ra+0x7c/0x128 sp : ffffffc00d593ad0 x29: ffffffc00d593ad0 x28: 00000000ffffffff x27: ffffffc00d593d40 x26: 0000000000000000 x25: 0000000000000153 x24: 0000000000000143 fscrypt_inode_uses_inline_crypto+0x4/0xc page_cache_sync_ra+0x68/0x90 filemap_read+0x194/0xb14 generic_file_read_iter+0x44/0x134 vfs_read+0x1a8/0x27c arm64_sys_pread64+0x84/0xc8 invoke_syscall+0x40/0x104 el0_svc_common+0xbc/0x168 do_el0_svc+0x1c/0x28 el0_svc+0x1c/0x68 el0t_64_sync_handler+0x68/0xb4 el0t_64_sync+0x164/0x168 Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com> Change-Id: I5a69580f26e578e46110782d3d20c9f1df2acd50
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.