Comment 6 for bug 2061091

There is another calltrace in kern.log which might be another issue (probably need a separated bug report).

Apr 15 21:45:23 xps9320 kernel: [43079.109011] ================================================================================
Apr 15 21:45:23 xps9320 kernel: [43079.112281] UBSAN: shift-out-of-bounds in /build/linux-hwe-6.5-jkqeMi/linux-hwe-6.5-6.5.0/drivers/gpu/drm/display/drm_dp_mst_topology.c:4416:36
Apr 15 21:45:23 xps9320 kernel: [43079.115601] shift exponent -1 is negative
Apr 15 21:45:23 xps9320 kernel: [43079.119073] CPU: 0 PID: 34404 Comm: kworker/0:3 Tainted: G OE 6.5.0-27-generic #28~22.04.1-Ubuntu
Apr 15 21:45:23 xps9320 kernel: [43079.122523] Hardware name: Dell Inc. XPS 9320/0CW9KM, BIOS 2.8.0 11/13/2023
Apr 15 21:45:23 xps9320 kernel: [43079.126024] Workqueue: events output_poll_execute [drm_kms_helper]
Apr 15 21:45:23 xps9320 kernel: [43079.129530] Call Trace:
Apr 15 21:45:23 xps9320 kernel: [43079.132985] <TASK>
Apr 15 21:45:23 xps9320 kernel: [43079.136412] dump_stack_lvl+0x48/0x70
Apr 15 21:45:23 xps9320 kernel: [43079.139805] dump_stack+0x10/0x20
Apr 15 21:45:23 xps9320 kernel: [43079.143170] __ubsan_handle_shift_out_of_bounds+0x1ac/0x360
Apr 15 21:45:23 xps9320 kernel: [43079.146525] drm_dp_atomic_release_time_slots.cold+0x17/0x3d [drm_display_helper]
Apr 15 21:45:23 xps9320 kernel: [43079.149904] intel_dp_mst_atomic_check+0xaa/0x180 [i915]
Apr 15 21:45:23 xps9320 kernel: [43079.153378] ? update_connector_routing+0x2fc/0x3f0 [drm_kms_helper]
Apr 15 21:45:23 xps9320 kernel: [43079.156738] drm_atomic_helper_check_modeset+0x300/0x610 [drm_kms_helper]
Apr 15 21:45:23 xps9320 kernel: [43079.160084] intel_atomic_check+0xfe/0xb80 [i915]
Apr 15 21:45:23 xps9320 kernel: [43079.163518] ? drm_plane_check_pixel_format+0x53/0xe0 [drm]
Apr 15 21:45:23 xps9320 kernel: [43079.166858] drm_atomic_check_only+0x1ac/0x400 [drm]
Apr 15 21:45:23 xps9320 kernel: [43079.170172] ? update_output_state+0x184/0x1a0 [drm]
Apr 15 21:45:23 xps9320 kernel: [43079.173478] drm_atomic_commit+0x58/0xd0 [drm]
Apr 15 21:45:23 xps9320 kernel: [43079.176765] ? __pfx___drm_printfn_info+0x10/0x10 [drm]
Apr 15 21:45:23 xps9320 kernel: [43079.180049] drm_client_modeset_commit_atomic+0x203/0x240 [drm]
Apr 15 21:45:23 xps9320 kernel: [43079.183332] drm_client_modeset_commit_locked+0x5b/0x170 [drm]
Apr 15 21:45:23 xps9320 kernel: [43079.186586] ? mutex_lock+0x12/0x50
Apr 15 21:45:23 xps9320 kernel: [43079.189776] drm_client_modeset_commit+0x26/0x50 [drm]
Apr 15 21:45:23 xps9320 kernel: [43079.192980] __drm_fb_helper_restore_fbdev_mode_unlocked+0xc2/0x100 [drm_kms_helper]
Apr 15 21:45:23 xps9320 kernel: [43079.196179] drm_fb_helper_hotplug_event+0x10b/0x120 [drm_kms_helper]
Apr 15 21:45:23 xps9320 kernel: [43079.199336] intel_fbdev_output_poll_changed+0x6b/0xb0 [i915]
Apr 15 21:45:23 xps9320 kernel: [43079.202568] output_poll_execute+0x237/0x280 [drm_kms_helper]
Apr 15 21:45:23 xps9320 kernel: [43079.205686] ? __schedule+0x2d3/0x750
Apr 15 21:45:23 xps9320 kernel: [43079.208777] process_one_work+0x23d/0x450
Apr 15 21:45:23 xps9320 kernel: [43079.211856] worker_thread+0x50/0x3f0
Apr 15 21:45:23 xps9320 kernel: [43079.214921] ? __pfx_worker_thread+0x10/0x10
Apr 15 21:45:23 xps9320 kernel: [43079.217984] kthread+0xef/0x120
Apr 15 21:45:23 xps9320 kernel: [43079.221037] ? __pfx_kthread+0x10/0x10
Apr 15 21:45:23 xps9320 kernel: [43079.224072] ret_from_fork+0x44/0x70
Apr 15 21:45:23 xps9320 kernel: [43079.227100] ? __pfx_kthread+0x10/0x10
Apr 15 21:45:23 xps9320 kernel: [43079.230123] ret_from_fork_asm+0x1b/0x30
Apr 15 21:45:23 xps9320 kernel: [43079.233124] </TASK>
Apr 15 21:45:23 xps9320 kernel: [43079.235686] ================================================================================