Messages in this thread Patch in this message | | | Date | Tue, 17 May 2005 10:30:11 -0500 | From | Michael Halcrow <> | Subject | [patch 5/7] BSD Secure Levels: allow setuid/setgid on root user processes |
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This is the fifth in a series of seven patches to the BSD Secure Levels LSM. It allows setuid and setgid on a process if the user is already root. This allows non-root users to log in. Thanks to Serge Hallyn for the suggestion.
Signed off by: Michael Halcrow <mhalcrow@us.ibm.com>
Index: linux-2.6.12-rc4-mm2-seclvl/security/seclvl.c =================================================================== --- linux-2.6.12-rc4-mm2-seclvl.orig/security/seclvl.c 2005-05-16 16:28:29.000000000 -0500 +++ linux-2.6.12-rc4-mm2-seclvl/security/seclvl.c 2005-05-16 16:29:19.000000000 -0500 @@ -442,12 +442,12 @@ "in secure level [%d] denied\n", __FUNCTION__, seclvl); return -EPERM; - } else if (cap == CAP_SETUID) { + } else if (cap == CAP_SETUID && current->uid != 0) { seclvl_printk(1, KERN_WARNING "%s: Attempt to setuid " "while in secure level [%d] denied\n", __FUNCTION__, seclvl); return -EPERM; - } else if (cap == CAP_SETGID) { + } else if (cap == CAP_SETGID && current->uid != 0) { seclvl_printk(1, KERN_WARNING "%s: Attempt to setgid " "while in secure level [%d] denied\n", __FUNCTION__, seclvl); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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