seat->primary_election_source_destroy points to the source that just got
freed by the cancel.
==7843==ERROR: AddressSanitizer: heap-use-after-free on address 0x60b0004269b0 at pc 0x7fb95bf4ccd0 bp 0x7ffd75013940 s
p 0x7ffd75013930
WRITE of size 8 at 0x60b0004269b0 thread T0
#0 0x7fb95bf4cccf in wl_list_remove ../util/signal.c:55
#1 0x7fb95bf3f4c6 in wlr_seat_set_primary_selection ../types/wlr_primary_selection.c:238
#2 0x7fb95becb1a7 in xwm_handle_selection_event ../xwayland/selection/selection.c:124
#3 0x7fb95bed2e5d in x11_event_handler ../xwayland/xwm.c:1139
#4 0x7fb95c1bdf01 in wl_event_loop_dispatch src/event-loop.c:641
#5 0x7fb95c1bc601 in wl_display_run src/wayland-server.c:1260
#6 0x40a2f4 in main ../sway/main.c:433
#7 0x7fb95b69718a in __libc_start_main (/lib64/libc.so.6+0x2318a)
#8 0x40b749 in _start (/opt/wayland/bin/sway+0x40b749)
0x60b0004269b0 is located 64 bytes inside of 112-byte region [0x60b000426970,0x60b0004269e0)
freed by thread T0 here:
#0 0x7fb95e0ad880 in __interceptor_free (/lib64/libasan.so.5+0xee880)
#1 0x7fb95bf3f49e in wlr_seat_set_primary_selection ../types/wlr_primary_selection.c:236
#2 0x7fb95becb1a7 in xwm_handle_selection_event ../xwayland/selection/selection.c:124
#3 0x7fb95bed2e5d in x11_event_handler ../xwayland/xwm.c:1139
#4 0x7fb95c1bdf01 in wl_event_loop_dispatch src/event-loop.c:641
previously allocated by thread T0 here:
#0 0x7fb95e0ade50 in calloc (/lib64/libasan.so.5+0xeee50)
#1 0x7fb95bec7ad6 in xwm_selection_get_targets ../xwayland/selection/incoming.c:355
#2 0x7fb95bec7ad6 in xwm_handle_selection_notify ../xwayland/selection/incoming.c:402
#3 0x7fb95becb1a7 in xwm_handle_selection_event ../xwayland/selection/selection.c:124
#4 0x7fb95bed2e5d in x11_event_handler ../xwayland/xwm.c:1139
#5 0x7fb95c1bdf01 in wl_event_loop_dispatch src/event-loop.c:641
SUMMARY: AddressSanitizer: heap-use-after-free ../util/signal.c:55 in wl_list_remove
Shadow bytes around the buggy address:
0x0c168007cce0: fd fd fd fa fa fa fa fa fa fa fa fa fd fd fd fd
0x0c168007ccf0: fd fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa
0x0c168007cd00: fa fa fd fd fd fd fd fd fd fd fd fd fd fd fd fa
0x0c168007cd10: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c168007cd20: fd fd fd fd fd fa fa fa fa fa fa fa fa fa fd fd
=>0x0c168007cd30: fd fd fd fd fd fd[fd]fd fd fd fd fd fa fa fa fa
0x0c168007cd40: fa fa fa fa fd fd fd fd fd fd fd fd fd fd fd fd
0x0c168007cd50: fd fa fa fa fa fa fa fa fa fa fd fd fd fd fd fd
0x0c168007cd60: fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa fa
0x0c168007cd70: fd fd fd fd fd fd fd fd fd fd fd fd fd fa fa fa
0x0c168007cd80: fa fa fa fa fa fa fd fd fd fd fd fd fd fd fd fd
Prior to this commit, we re-uploaded the buffer even if a new one
wasn't attached. After uploading, we send wl_buffer.release. So,
this sequence of requests resulted in a double release:
surface.attach(buffer, 0, 0)
surface.commit()
<- buffer.release()
surface.commit()
<- buffer.release()
If the layer surface has been closed by the compositor, using
layer_surface_close(), then the unmap event is emitted. However, when
the layer surface is later destroyed by the client, the compositor used
to get a second unmap, which is fixed with this commit.
After some discussions on #wayland, it seems that as soon as you
hold a reference to a DMA-BUF (via EGLImage for instance), the
underlying memory won't get free'd. The client is allowed to
re-use the DMA-BUF and upload something else to it though.
This lets clients bind to a seat multiple times by re-using the existing
wlr_seat_client whenever a duplicate request happens.
Previously, an independant wlr_seat_client would be created and only
events from one would be processed.
Fixes#1023.
The printf conversion specifiers in a call to wl_resource_post_error
do not specify the type correctly on armhf:
../types/wlr_linux_dmabuf.c: In function 'params_add':
../types/wlr_linux_dmabuf.c:104:21: error: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'uint64_t {aka long long unsigned int}' [-Werror=format=]
"sent modifier %lu for plane %u, expected modifier %lu like other planes",
~~^
%llu
To fix this, we use standard printf conversion specifier macros from
inttypes.h.
