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author | 2023-01-01 06:34:57 -0500 | |
---|---|---|
committer | 2023-01-04 10:37:36 +0100 | |
commit | 88c17ece3b2617762c3f5f1c1fa79fe8f4df0082 (patch) | |
tree | 6a3c6ff4b62417c895b40a847392557fc9ae1dd4 /meson.build | |
parent | Use correct length for strncmp comparison (diff) | |
download | sway-88c17ece3b2617762c3f5f1c1fa79fe8f4df0082.tar.gz sway-88c17ece3b2617762c3f5f1c1fa79fe8f4df0082.tar.zst sway-88c17ece3b2617762c3f5f1c1fa79fe8f4df0082.zip |
warp_to_constraint_cursor_hint: Handle NULL view
This might be the wrong fix, but the crash is happening because the ->data
field on an xwayland surface is NULL. A NULL data field is normal for
unmanaged surfaces, however it seems clients can do weird things: They can
create a cursor lock on a regular xwayland surface then make it unmanaged
by calling override_redirect. In this case, the xwayland server should
destroy the cursor lock, which is does, but does so in the wrong order
making it try to dereference a NULL pointer after sway has acknowledged
its new unmanaged status.
```
(gdb) bt full
0 0x000055fd91934861 in warp_to_constraint_cursor_hint (cursor=0x55fd93486c00)
at ../sway/input/cursor.c:1243
sy = 605
lx = 6.9527431433545762e-310
sx = 1272
view = 0x0
con = 0x7ffd1cdfe400
ly = -6.949595189996421e+59
constraint = 0x55fd93e7faa0
1 0x000055fd91934976 in handle_constraint_destroy (listener=0x55fd93f0fd58, data=0x55fd93e7faa0)
at ../sway/input/cursor.c:1266
sway_constraint = 0x55fd93f0fd30
constraint = 0x55fd93e7faa0
cursor = 0x55fd93486c00
2 0x00007fda8275bf6e in wl_signal_emit_mutable () at /usr/lib/libwayland-server.so.0
3 0x00007fda82e57016 in pointer_constraint_destroy (constraint=0x55fd93e7faa0)
at ../subprojects/wlroots/types/wlr_pointer_constraints_v1.c:49
4 0x00007fda82e570dc in pointer_constraint_destroy_resource (resource=0x55fd933cf8f0)
at ../subprojects/wlroots/types/wlr_pointer_constraints_v1.c:66
constraint = 0x55fd93e7faa0
5 0x00007fda8275d8ba in () at /usr/lib/libwayland-server.so.0
6 0x00007fda8275f6a9 in wl_resource_destroy () at /usr/lib/libwayland-server.so.0
7 0x00007fda82e56fb3 in resource_destroy (client=0x55fd93ea52e0, resource=0x55fd933cf8f0)
at ../subprojects/wlroots/types/wlr_pointer_constraints_v1.c:39
8 0x00007fda81d8f4f6 in () at /usr/lib/libffi.so.8
9 0x00007fda81d8bf5e in () at /usr/lib/libffi.so.8
10 0x00007fda81d8eb73 in ffi_call () at /usr/lib/libffi.so.8
11 0x00007fda8275aada in () at /usr/lib/libwayland-server.so.0
12 0x00007fda8275f01c in () at /usr/lib/libwayland-server.so.0
13 0x00007fda8275d9e2 in wl_event_loop_dispatch () at /usr/lib/libwayland-server.so.0
14 0x00007fda8275e197 in wl_display_run () at /usr/lib/libwayland-server.so.0
15 0x000055fd919264d3 in server_run (server=0x55fd919a3a80 <server>) at ../sway/server.c:320
16 0x000055fd91925457 in main (argc=1, argv=0x7ffd1cdfed98) at ../sway/main.c:411
verbose = false
debug = false
validate = false
allow_unsupported_gpu = false
config_path = 0x0
c = -1
```
Diffstat (limited to 'meson.build')
0 files changed, 0 insertions, 0 deletions