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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-04 21:39:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-04 21:39:21 -0800 |
| commit | 56d18e9932ebf4e8eca42d2ce509450e6c9c1666 (patch) | |
| tree | cb7d041749cfc54754ba2f9f1cdb7c2037739c65 /arch/mips/kernel | |
| parent | 1cb434b20d85b90f2e5cf6cb80071069a052b1e1 (diff) | |
| parent | c6cb4df96fa22d1174d6fb6dfc2c7501d7afaeea (diff) | |
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
MIPS: Return ENOSYS from sys32_syscall on 64bit kernels like elsewhere.
MIPS: 64-bit: vmsplice needs to use the compat wrapper for o32 and N32.
MIPS: o32: Fix number of arguments to splice(2).
MIPS: Malta: Consolidate platform device code.
MIPS: IP22, Fulong, Malta: Update defconfigs.
MIPS: Malta: Add back RTC support
MIPS: Fix potential DOS by untrusted user app.
Diffstat (limited to 'arch/mips/kernel')
| -rw-r--r-- | arch/mips/kernel/scall32-o32.S | 7 | ||||
| -rw-r--r-- | arch/mips/kernel/scall64-n32.S | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/scall64-o32.S | 16 |
3 files changed, 10 insertions, 15 deletions
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index 759f68066b5..d0916a55cd7 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -262,14 +262,11 @@ bad_alignment: LEAF(sys_syscall) subu t0, a0, __NR_O32_Linux # check syscall number sltiu v0, t0, __NR_O32_Linux_syscalls + 1 + beqz t0, einval # do not recurse sll t1, t0, 3 beqz v0, einval - lw t2, sys_call_table(t1) # syscall routine - li v1, 4000 - __NR_O32_Linux # index of sys_syscall - beq t0, v1, einval # do not recurse - /* Some syscalls like execve get their arguments from struct pt_regs and claim zero arguments in the syscall table. Thus we have to assume the worst case and shuffle around all potential arguments. @@ -627,7 +624,7 @@ einval: li v0, -ENOSYS sys sys_pselect6 6 sys sys_ppoll 5 sys sys_unshare 1 - sys sys_splice 4 + sys sys_splice 6 sys sys_sync_file_range 7 /* 4305 */ sys sys_tee 4 sys sys_vmsplice 4 diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index e266b3aa656..30f3b6317a8 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -390,7 +390,7 @@ EXPORT(sysn32_call_table) PTR sys_splice PTR sys_sync_file_range PTR sys_tee - PTR sys_vmsplice /* 6270 */ + PTR compat_sys_vmsplice /* 6270 */ PTR sys_move_pages PTR compat_sys_set_robust_list PTR compat_sys_get_robust_list diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 6c7ef8313eb..fefef4af859 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -174,14 +174,12 @@ not_o32_scall: END(handle_sys) LEAF(sys32_syscall) - sltu v0, a0, __NR_O32_Linux + __NR_O32_Linux_syscalls + 1 + subu t0, a0, __NR_O32_Linux # check syscall number + sltiu v0, t0, __NR_O32_Linux_syscalls + 1 + beqz t0, einval # do not recurse + dsll t1, t0, 3 beqz v0, einval - - dsll v0, a0, 3 - ld t2, (sys_call_table - (__NR_O32_Linux * 8))(v0) - - li v1, 4000 # indirect syscall number - beq a0, v1, einval # do not recurse + ld t2, sys_call_table(t1) # syscall routine move a0, a1 # shift argument registers move a1, a2 @@ -198,7 +196,7 @@ LEAF(sys32_syscall) jr t2 /* Unreached */ -einval: li v0, -EINVAL +einval: li v0, -ENOSYS jr ra END(sys32_syscall) @@ -512,7 +510,7 @@ sys_call_table: PTR sys_splice PTR sys32_sync_file_range /* 4305 */ PTR sys_tee - PTR sys_vmsplice + PTR compat_sys_vmsplice PTR compat_sys_move_pages PTR compat_sys_set_robust_list PTR compat_sys_get_robust_list /* 4310 */ |