Browse Source

selinux/stable-5.4 PR 20191007

 -----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEES0KozwfymdVUl37v6iDy2pc3iXMFAl2bu6kUHHBhdWxAcGF1
 bC1tb29yZS5jb20ACgkQ6iDy2pc3iXMsxhAAtoljww3Xur0JpD7y+g2yzKGZqn9F
 ovqH103NOdpXY3vRN5TL0ZfKEWZz/a2Rjyjz/9+Ix5kKFQuaguk9TVenp4LuAWjy
 yyo8aSArqwJEpPbrgQDRkjvq08zCcsHSQHwyR44L5MEB8w03Hr+GKFbroR7DkB8R
 qthF5nRoarblEpdc88s3WbPN/Yz32zRwl3EppSRriIBSBUNr6OP5yO6YDvBdwJso
 CvmQybMK/iGiZrDzm5jAXzUyI79MHkrrB55roNXIdam9Rnyb9Wqjt9SQgzDLTvO1
 Z7c4pXqDn1iMSECAqR7EeKLmsEvnp8omDMqbZOsGiWwka93nuNM4NRhswMF6X3pf
 EbmBAuj0CokWlRoJAxyxrw/Tn+KXWjyOpOMoNQR7dyyewenzPTWw4zLhiSsl4Epo
 e1+3PDkJeZhlrtqMcQhep/OgfnPp/8FlgZXNkq1wsMK6SawIiwvxH3mpELE4I8Zk
 3yzYZvnxIDNLcx6TmDgDcJyp+P/iuFGK707G6ogCoCK9VqyTs+nwdZn3s2o1KRDW
 00LdiuXiqOyfdDthfY/q5suKJoWExh+K1dhQ7Llx169yx3uOjlnzTaSTt8dcvhkh
 Y+Nf5pEk0MVgnldaIRy/Zzr4y81Q7QW6ZwD62NHCIhcSevYczFOP7K6V/mYFmDT1
 xlCDPXeHyuR5DrM=
 =btWt
 -----END PGP SIGNATURE-----

Merge tag 'selinux-pr-20191007' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinuxfix from Paul Moore:
 "One patch to ensure we don't copy bad memory up into userspace"

* tag 'selinux-pr-20191007' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: fix context string corruption in convert_context()
tags/v5.4-rc3
Linus Torvalds 1 month ago
parent
commit
2ef459167a
1 changed files with 8 additions and 1 deletions
  1. 8
    1
      security/selinux/ss/services.c

+ 8
- 1
security/selinux/ss/services.c View File

@@ -1946,7 +1946,14 @@ static int convert_context(struct context *oldc, struct context *newc, void *p)
rc = string_to_context_struct(args->newp, NULL, s,
newc, SECSID_NULL);
if (rc == -EINVAL) {
/* Retain string representation for later mapping. */
/*
* Retain string representation for later mapping.
*
* IMPORTANT: We need to copy the contents of oldc->str
* back into s again because string_to_context_struct()
* may have garbled it.
*/
memcpy(s, oldc->str, oldc->len);
context_init(newc);
newc->str = s;
newc->len = oldc->len;

Loading…
Cancel
Save