Peter Xu 4980e837ca mm/pagemap: fix wr-protect even if PM_SCAN_WP_MATCHING not set ... The new pagemap ioctl contains a fast path for wr-protections without looking into category masks. It forgets to check PM_SCAN_WP_MATCHING before applying the wr-protections. It can cause, e.g., pte markers installed on archs that do not even support uffd wr-protect. WARNING: CPU: 0 PID: 5059 at mm/memory.c:1520 zap_pte_range mm/memory.c:1520 [inline] Link: https://lkml.kernel.org/r/20231116201547.536857-3-peterx@redhat.com Fixes: 12f6b01a0b ("fs/proc/task_mmu: add fast paths to get/clear PAGE_IS_WRITTEN flag") Signed-off-by: Peter Xu <peterx@redhat.com> Reported-by: syzbot+7ca4b2719dc742b8d0a4@syzkaller.appspotmail.com Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Andrei Vagin <avagin@gmail.com> Cc: Muhammad Usama Anjum <usama.anjum@collabora.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2023-12-06 16:12:45 -08:00
..
array.c	fs/proc: do_task_stat: use __for_each_thread()	2023-10-04 10:41:57 -07:00
base.c	As usual, lots of singleton and doubleton patches all over the tree and	2023-11-02 20:53:31 -10:00
bootconfig.c	fs/proc: Add boot loader arguments as comment to /proc/bootconfig	2023-10-07 10:45:56 +09:00
cmdline.c	proc: mark /proc/cmdline as permanent	2023-02-02 22:50:02 -08:00
consoles.c	proc: consoles: use console_list_lock for list iteration	2022-12-02 11:25:02 +01:00
cpuinfo.c	x86/aperfmperf: Replace aperfmperf_get_khz()	2022-04-27 20:22:19 +02:00
devices.c	proc: mark more files as permanent	2022-10-03 14:21:45 -07:00
fd.c	file: convert to SLAB_TYPESAFE_BY_RCU	2023-10-19 11:02:48 +02:00
fd.h	fs: port ->permission() to pass mnt_idmap	2023-01-19 09:24:28 +01:00
generic.c	fs: pass the request_mask to generic_fillattr	2023-08-09 08:56:36 +02:00
inode.c	As usual, lots of singleton and doubleton patches all over the tree and	2023-11-02 20:53:31 -10:00
internal.h	proc: nommu: fix empty /proc/<pid>/maps	2023-09-19 13:21:34 -07:00
interrupts.c
Kconfig	proc: make config PROC_CHILDREN depend on PROC_FS	2022-10-03 14:21:43 -07:00
kcore.c	proc/kcore: do not try to access unaccepted memory	2023-10-04 10:32:22 -07:00
kmsg.c	printk changes for 6.1	2022-10-10 11:24:19 -07:00
loadavg.c	proc: mark more files as permanent	2022-10-03 14:21:45 -07:00
Makefile
meminfo.c	mm: memtest: convert to memtest_report_meminfo()	2023-08-21 13:37:47 -07:00
namespaces.c
nommu.c	fs: create helper file_user_path() for user displayed mapped file path	2023-10-19 11:03:15 +02:00
page.c	mm, pagemap: remove SLOB and SLQB from comments and documentation	2023-03-29 10:32:11 +02:00
proc_net.c	v6.6-fs.proc.uapi	2023-08-28 11:43:19 -07:00
proc_sysctl.c	sysctl-6.7-rc1	2023-11-01 20:51:41 -10:00
proc_tty.c	proc: delete unused <linux/uaccess.h> includes	2022-07-17 17:31:39 -07:00
root.c	fs: super: dynamically allocate the s_shrink	2023-10-04 10:32:26 -07:00
self.c	proc: convert to new timestamp accessors	2023-10-18 14:08:26 +02:00
softirqs.c	proc: mark more files as permanent	2022-10-03 14:21:45 -07:00
stat.c	proc/stat: remove arch_idle_time()	2023-04-18 16:39:33 -07:00
task_mmu.c	mm/pagemap: fix wr-protect even if PM_SCAN_WP_MATCHING not set	2023-12-06 16:12:45 -08:00
task_nommu.c	vfs-6.7.misc	2023-10-30 09:14:19 -10:00
thread_self.c	proc: convert to new timestamp accessors	2023-10-18 14:08:26 +02:00
uptime.c	proc: mark more files as permanent	2022-10-03 14:21:45 -07:00
util.c
version.c	proc: mark more files as permanent	2022-10-03 14:21:45 -07:00
vmcore.c	proc/vmcore: fix signedness bug in read_from_oldmem()	2023-07-27 13:07:05 -07:00