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Merge tag 'LSM-add-setgid-hook-5.8-author-fix' of git://github.com/micah-morton/linux

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Pull SafeSetID update from Micah Morton:
 "Add additional LSM hooks for SafeSetID

  SafeSetID is capable of making allow/deny decisions for set*uid calls
  on a system, and we want to add similar functionality for set*gid
  calls.

  The work to do that is not yet complete, so probably won't make it in
  for v5.8, but we are looking to get this simple patch in for v5.8
  since we have it ready.

  We are planning on the rest of the work for extending the SafeSetID
  LSM being merged during the v5.9 merge window"

* tag 'LSM-add-setgid-hook-5.8-author-fix' of git://github.com/micah-morton/linux:
  security: Add LSM hooks to set*gid syscalls
This commit is contained in:
Linus Torvalds
2020-06-14 11:39:31 -07:00
parent 9d645db853 39030e1351
commit 4a87b197c1
5 changed files with 40 additions and 1 deletions
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9
include/linux/lsm_hooks.h
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@@ -659,6 +659,15 @@
* @old is the set of credentials that are being replaces
* @flags contains one of the LSM_SETID_* values.
* Return 0 on success.
* @task_fix_setgid:
* Update the module's state after setting one or more of the group
* identity attributes of the current process. The @flags parameter
* indicates which of the set*gid system calls invoked this hook.
* @new is the set of credentials that will be installed. Modifications
* should be made to this rather than to @current->cred.
* @old is the set of credentials that are being replaced.
* @flags contains one of the LSM_SETID_* values.
* Return 0 on success.
* @task_setpgid:
* Check permission before setting the process group identifier of the
* process @p to @pgid.