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kernel: fix probe_kernel_read failed to read user addr

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weishu
2023-08-09 18:37:30 +08:00
parent cde3e95180
commit 7bdb885816
2 changed files with 49 additions and 10 deletions
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19
kernel/kernel_compat.h
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@@ -6,21 +6,20 @@
#include "linux/version.h"
#include "linux/uaccess.h"
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 8, 0)
#define ksu_strncpy_from_user_nofault strncpy_from_user_nofault
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(5, 3, 0)
#define ksu_strncpy_from_user_nofault strncpy_from_unsafe_user
#else
#define ksu_strncpy_from_user_nofault probe_kernel_read
#endif
extern long ksu_strncpy_from_user_nofault(char *dst,
const void __user *unsafe_addr,
long count);
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
extern struct key *init_session_keyring;
#endif
extern void ksu_android_ns_fs_check();
extern struct file *ksu_filp_open_compat(const char *filename, int flags, umode_t mode);
extern ssize_t ksu_kernel_read_compat(struct file *p, void *buf, size_t count, loff_t *pos);
extern ssize_t ksu_kernel_write_compat(struct file *p, const void *buf, size_t count, loff_t *pos);
extern struct file *ksu_filp_open_compat(const char *filename, int flags,
umode_t mode);
extern ssize_t ksu_kernel_read_compat(struct file *p, void *buf, size_t count,
loff_t *pos);
extern ssize_t ksu_kernel_write_compat(struct file *p, const void *buf,
size_t count, loff_t *pos);
#endif