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Fixes#18025, https://bugzilla.redhat.com/show_bug.cgi?id=1931034.
We drop the reference stored in Manager.managed_oom_varlink_request in two code paths:
vl_disconnect() which is installed as a disconnect callback, and in manager_varlink_done().
But we also make a disconnect from manager_varlink_done(). So we end up with the following
call stack:
(gdb) bt
0 vl_disconnect (s=0x112c7b0, link=0xea0070, userdata=0xe9bcc0) at ../src/core/core-varlink.c:414
1 0x00007f1366e9d5ac in varlink_detach_server (v=0xea0070) at ../src/shared/varlink.c:1210
2 0x00007f1366e9d664 in varlink_close (v=0xea0070) at ../src/shared/varlink.c:1228
3 0x00007f1366e9d6b5 in varlink_close_unref (v=0xea0070) at ../src/shared/varlink.c:1240
4 0x0000000000524629 in manager_varlink_done (m=0xe9bcc0) at ../src/core/core-varlink.c:479
5 0x000000000048ef7b in manager_free (m=0xe9bcc0) at ../src/core/manager.c:1357
6 0x000000000042602c in main (argc=5, argv=0x7fff439c43d8) at ../src/core/main.c:2909
When we enter vl_disconnect(), m->managed_oom_varlink_request.n_ref==1.
When we exit from vl_discconect(), m->managed_oom_varlink_request==NULL. But
varlink_close_unref() has a copy of the pointer in *v. When we continue executing
varlink_close_unref(), this pointer is dangling, and the call to varlink_unref()
is done with an invalid pointer.
Reading file '/usr/lib/systemd/ntp-units.d/80-systemd-timesync.list'
Failed to add NTP service "# This file is part of systemd.", ignoring: Invalid argument
Failed to add NTP service "# See systemd-timedated.service(8) for more information.", ignoring: Invalid argument
:(
Previously we'd just check if the ID was no-empty an no longer than
FILENAME_MAX. The latter was probably a mistake, given the comment next
to it. Instead of fixing that to check for NAME_MAX let's instead just
switch over to filename_is_valid() which odes a similar check, plus a
some minor additional checks. After all we do want that valid EFI boot
menu entry ids are usable as filenames.
This fixes two checks where we compare string sizes when validating with
FILENAME_MAX. In both cases the check apparently wants to check if the
name fits in a filename, but that's not actually what FILENAME_MAX can
be used for, as it — in contrast to what the name suggests — actually
encodes the maximum length of a path.
In both cases the stricter change doesn't actually change much, but the
use of FILENAME_MAX is still misleading and typically wrong.
Previously, if the hashmap is allow-list and a new deny-listed syscall
is added, seccomp_parse_syscall_filter() simply drop the new syscall
from hashmap even if error number is specified.
This makes 'allow-list' hashmap store two types of entries:
- allow-listed syscalls, which are stored with negative value (-1).
- deny-listed syscalls, which are stored with specified errno.
Fixes#18916.
parse_syscall_and_errno() does not check the validity of syscall name or
syscall group name, but it just split into syscall name and errno.
So, it is not necessary to call it for SystemCallLog=.
Shouldn't make any difference, but let's first flush any pending messages, then
unref the reference-counted stuff, and only at the end do the direct free calls.
C.f. 9793530228.
We'd crash when trying to access an already-deallocated object:
Thread no. 1 (7 frames)
#2 log_assert_failed_realm at ../src/basic/log.c:844
#3 event_inotify_data_drop at ../src/libsystemd/sd-event/sd-event.c:3035
#4 source_dispatch at ../src/libsystemd/sd-event/sd-event.c:3250
#5 sd_event_dispatch at ../src/libsystemd/sd-event/sd-event.c:3631
#6 sd_event_run at ../src/libsystemd/sd-event/sd-event.c:3689
#7 sd_event_loop at ../src/libsystemd/sd-event/sd-event.c:3711
#8 run at ../src/home/homed.c:47
The source in question is an inotify source, and the messages are:
systemd-homed[1340]: /home/ moved or renamed, recreating watch and rescanning.
systemd-homed[1340]: Assertion '*_head == _item' failed at src/libsystemd/sd-event/sd-event.c:3035, function event_inotify_data_drop(). Aborting.
on_home_inotify() got called, then manager_watch_home(), which unrefs the
existing inotify_event_source. I assume that the source gets dispatched again
because it was still in the pending queue.
I can't reproduce the issue (timing?), but this should
fix#17824, https://bugzilla.redhat.com/show_bug.cgi?id=1899264.
Dell new Privacy feature provide new hardware level privacy
protect for users
This patch remaps scancode 0x120001 to key code F20 micmute
The old matching string cannot cover some other Dell products
which have the privacy feature,expand the string to all the system
that can load the privacy driver,privacy driver already detect the
system if it can support this feature. So here we can safely just
map the micmute key to scancode 0x120001
Signed-off-by: Perry Yuan <perry_yuan@dell.com>
