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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-07 10:16:24 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-02-07 10:16:24 -0800 |
commit | c6792d44d8f08451047051351dfdcc8332a028e3 (patch) | |
tree | 6a8456c6eb5b312e64131c1943bd552aed35d967 /Documentation | |
parent | 6fed85df5d097298d265dfcc31cf1e0c1633f41e (diff) | |
parent | 36a6c843fd0d8e02506681577e96dabd203dd8e8 (diff) |
Merge tag 'core_urgent_for_v5.11_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull syscall entry fixes from Borislav Petkov:
- For syscall user dispatch, separate prctl operation from syscall
redirection range specification before the API has been made official
in 5.11.
- Ensure tasks using the generic syscall code do trap after returning
from a syscall when single-stepping is requested.
* tag 'core_urgent_for_v5.11_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
entry: Use different define for selector variable in SUD
entry: Ensure trap after single-step on system call return
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/admin-guide/syscall-user-dispatch.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/admin-guide/syscall-user-dispatch.rst b/Documentation/admin-guide/syscall-user-dispatch.rst index a380d6515774..60314953c728 100644 --- a/Documentation/admin-guide/syscall-user-dispatch.rst +++ b/Documentation/admin-guide/syscall-user-dispatch.rst @@ -70,8 +70,8 @@ trampoline code on the vDSO, that trampoline is never intercepted. [selector] is a pointer to a char-sized region in the process memory region, that provides a quick way to enable disable syscall redirection thread-wide, without the need to invoke the kernel directly. selector -can be set to PR_SYS_DISPATCH_ON or PR_SYS_DISPATCH_OFF. Any other -value should terminate the program with a SIGSYS. +can be set to SYSCALL_DISPATCH_FILTER_ALLOW or SYSCALL_DISPATCH_FILTER_BLOCK. +Any other value should terminate the program with a SIGSYS. Security Notes -------------- |