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| author | Jeff Garzik <jeff@garzik.org> | 2007-12-01 16:18:56 -0500 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-12-01 16:18:56 -0500 |
| commit | c99da91e7a12724127475a85cc7a38214b3504e2 (patch) | |
| tree | de0eb3fe32ce58804457963fd133a53bb8fba5b8 /security/commoncap.c | |
| parent | a31e23e15cbb9734c5883a4a7f58d8712d303e0b (diff) | |
| parent | 92d499d991ec4f5cbd00d6f33967eab9d3ee8d6c (diff) | |
| download | talos-obmc-linux-c99da91e7a12724127475a85cc7a38214b3504e2.tar.gz talos-obmc-linux-c99da91e7a12724127475a85cc7a38214b3504e2.zip | |
Merge branch 'master' into upstream-fixes
Diffstat (limited to 'security/commoncap.c')
| -rw-r--r-- | security/commoncap.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/security/commoncap.c b/security/commoncap.c index 302e8d0839a9..5bc1895f3f9c 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -526,6 +526,15 @@ int cap_task_kill(struct task_struct *p, struct siginfo *info, if (info != SEND_SIG_NOINFO && (is_si_special(info) || SI_FROMKERNEL(info))) return 0; + /* + * Running a setuid root program raises your capabilities. + * Killing your own setuid root processes was previously + * allowed. + * We must preserve legacy signal behavior in this case. + */ + if (p->euid == 0 && p->uid == current->uid) + return 0; + /* sigcont is permitted within same session */ if (sig == SIGCONT && (task_session_nr(current) == task_session_nr(p))) return 0; |
