Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Aleksa Sarai 0337bb53cb procfs: block chmod on /proc/thread-self/comm ... commit ccf61486fe1e1a48e18c638d1813cda77b3c0737 upstream. Due to an oversight in commit 1b3044e39a ("procfs: fix pthread cross-thread naming if !PR_DUMPABLE") in switching from REG to NOD, chmod operations on /proc/thread-self/comm were no longer blocked as they are on almost all other procfs files. A very similar situation with /proc/self/environ was used to as a root exploit a long time ago, but procfs has SB_I_NOEXEC so this is simply a correctness issue. Ref: https://lwn.net/Articles/191954/ Ref: 6d76fa58b0 ("Don't allow chmod() on the /proc/<pid>/ files") Fixes: 1b3044e39a ("procfs: fix pthread cross-thread naming if !PR_DUMPABLE") Cc: stable@vger.kernel.org # v4.7+ Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> Message-Id: <20230713141001.27046-1-cyphar@cyphar.com> Signed-off-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-09-23 10:59:55 +02:00
..
array.c
base.c	procfs: block chmod on /proc/thread-self/comm	2023-09-23 10:59:55 +02:00
cmdline.c
consoles.c
cpuinfo.c
devices.c
fd.c
fd.h
generic.c
inode.c
internal.h
interrupts.c
Kconfig
kcore.c
kmsg.c
loadavg.c
Makefile
meminfo.c
namespaces.c
nommu.c
page.c
proc_net.c
proc_sysctl.c	sysctl: add a new register_sysctl_init() interface	2023-02-06 07:52:48 +01:00
proc_tty.c
root.c
self.c
softirqs.c
stat.c
task_mmu.c	mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps	2023-02-22 12:50:28 +01:00
task_nommu.c
thread_self.c
uptime.c
util.c
version.c
vmcore.c