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free,stat: make NOEXEC

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pkill/pgrep/pidof uncovered another quirk: what about noexec's _process names_?

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2017-08-07 18:18:09 +02:00
parent 316d38e258
commit 248a67fb75
8 changed files with 31 additions and 12 deletions
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6
procps/pgrep.c
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@ -18,9 +18,13 @@
//config: help
//config: Send signals to processes by name.
//applet:IF_PGREP(APPLET(pgrep, BB_DIR_USR_BIN, BB_SUID_DROP))
//applet:IF_PGREP(APPLET_ODDNAME(pgrep, pgrep, BB_DIR_USR_BIN, BB_SUID_DROP, pgrep))
// APPLET_ODDNAME:name main location suid_type help
//applet:IF_PKILL(APPLET_ODDNAME(pkill, pgrep, BB_DIR_USR_BIN, BB_SUID_DROP, pkill))
/* can't be noexec: can find _itself_ under wrong name, since after fork only,
* /proc/PID/cmdline and comm are wrong! Can fix comm (prctl(PR_SET_NAME)),
* but cmdline?
*/
//kbuild:lib-$(CONFIG_PGREP) += pgrep.o
//kbuild:lib-$(CONFIG_PKILL) += pgrep.o