Control: tags -1 + moreinfo On Wed, Sep 03, 2025 at 10:16:24AM -0400, [email protected] wrote: > Package: src:linux > Version: 6.12.41-1 > Severity: important > X-Debbugs-Cc: [email protected] > > Dear Maintainer, > > Most Flatpak apps have suddenly broken on my Debian Stable ("Trixie") > installation. They were working normally until I ran a `flatpak update` today > after several weeks without updating the Flatpak system, but now the apps fail > to launch. I have confirmed that the base OS runs fine until the first time I > launch a Flatpak app, at which point it causes a kernel oops in the `nouveau` > module. > > I tried completely uninstalling and reinstalling all Flatpak-related Debian > packages, and I renamed `~/.local/share/flatpak` and `/var/lib/flatpak` and > tried starting fresh with Flatpak, but it made no difference. > > My hardware is a laptop with hybrid Intel / Nvidia graphics, but I don't use > the Nvidia card at all. I even tried uninstalling the `xserver-xorg-video- > nouveau` package, but somehow the `nouveau` module was still loading, I > imagine > coming from the Flatpak environment. > > When I boot with the kernel command line `module_blacklist=nouveau` this bug > does **not** happen. This bug happens with the oldest Debian Trixie released > kernel version (6.12.31-amd64) as well as the latest one > (6.12.41+deb13-amd64). > What changed on my system leading to this bug was the Flatpak framework > updates, however in my bug report to them > (https://github.com/flatpak/flatpak/issues/6307) they say it's a kernel bug. > > Here's the `dmesg` output that corresponds exactly to the moment that a > Flatpak > app is launched: > > ``````````````````````````````````````````` > [Tue Sep 2 23:31:49 2025] BUG: kernel NULL pointer dereference, address: > 0000000000000000 > [Tue Sep 2 23:31:49 2025] #PF: supervisor read access in kernel mode > [Tue Sep 2 23:31:49 2025] #PF: error_code(0x0000) - not-present page > [Tue Sep 2 23:31:49 2025] PGD 0 P4D 0 > [Tue Sep 2 23:31:49 2025] Oops: Oops: 0000 [#3] PREEMPT SMP PTI > [Tue Sep 2 23:31:49 2025] CPU: 6 UID: 1000 PID: 4820 Comm: com.github.tchx > Tainted: G D 6.12.31-amd64 #1 Debian 6.12.31-1 > [Tue Sep 2 23:31:49 2025] Tainted: [D]=DIE > [Tue Sep 2 23:31:49 2025] Hardware name: Intel(R) Client Systems > LAPQC71A/LAPQC71A, BIOS QCCFL357.0144.2022.0124.1433 01/24/2022 > [Tue Sep 2 23:31:49 2025] RIP: 0010:nvkm_gr_units+0x9/0x30 [nouveau] > [Tue Sep 2 23:31:49 2025] Code: 74 06 ff e0 cc 66 90 cc 31 c0 c3 cc cc cc cc > 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 > 00 <48> 8b 07 48 8b 40 58 48 85 c0 74 06 ff e0 cc 66 90 cc 31 c0 c3 cc > [Tue Sep 2 23:31:49 2025] RSP: 0018:ffffa1f38f267b40 EFLAGS: 00010246 > [Tue Sep 2 23:31:49 2025] RAX: ffff92a3ba38e000 RBX: ffffa1f38f267c20 RCX: > ffff92a3871f2800 > [Tue Sep 2 23:31:49 2025] RDX: ffff92a599362c00 RSI: ffffa1f38f267c20 RDI: > 0000000000000000 > [Tue Sep 2 23:31:49 2025] RBP: ffff92a4ab71d000 R08: 000000000000000d R09: > 00000000000012d4 > [Tue Sep 2 23:31:49 2025] R10: 0000000000000010 R11: 0000000000000012 R12: > ffffffffc0bb61f0 > [Tue Sep 2 23:31:49 2025] R13: ffffa1f38f267c20 R14: ffff92a3ba386000 R15: > 0000000000000010 > [Tue Sep 2 23:31:49 2025] FS: 00007fe43b074940(0000) > GS:ffff92ab1db00000(0000) knlGS:0000000000000000 > [Tue Sep 2 23:31:49 2025] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [Tue Sep 2 23:31:49 2025] CR2: 0000000000000000 CR3: 000000030ae00001 CR4: > 00000000003726f0 > [Tue Sep 2 23:31:49 2025] Call Trace: > [Tue Sep 2 23:31:49 2025] <TASK> > [Tue Sep 2 23:31:49 2025] nouveau_abi16_ioctl_getparam+0x2aa/0x350 [nouveau] > [Tue Sep 2 23:31:49 2025] ? tomoyo_init_request_info+0x99/0xc0 > [Tue Sep 2 23:31:49 2025] drm_ioctl_kernel+0xad/0x100 [drm] > [Tue Sep 2 23:31:49 2025] drm_ioctl+0x277/0x4f0 [drm] > [Tue Sep 2 23:31:49 2025] ? __pfx_nouveau_abi16_ioctl_getparam+0x10/0x10 > [nouveau] > [Tue Sep 2 23:31:49 2025] nouveau_drm_ioctl+0x57/0xb0 [nouveau] > [Tue Sep 2 23:31:49 2025] __x64_sys_ioctl+0x91/0xd0 > [Tue Sep 2 23:31:49 2025] do_syscall_64+0x82/0x190 > [Tue Sep 2 23:31:49 2025] ? __pfx_nouveau_abi16_ioctl_getparam+0x10/0x10 > [nouveau] > [Tue Sep 2 23:31:49 2025] ? __pm_runtime_suspend+0x69/0xc0 > [Tue Sep 2 23:31:49 2025] ? nouveau_drm_ioctl+0x7a/0xb0 [nouveau] > [Tue Sep 2 23:31:49 2025] ? syscall_exit_to_user_mode+0x4d/0x210 > [Tue Sep 2 23:31:49 2025] ? do_syscall_64+0x8e/0x190 > [Tue Sep 2 23:31:49 2025] ? syscall_exit_to_user_mode+0x4d/0x210 > [Tue Sep 2 23:31:49 2025] ? do_syscall_64+0x8e/0x190 > [Tue Sep 2 23:31:49 2025] ? exc_page_fault+0x7e/0x180 > [Tue Sep 2 23:31:49 2025] entry_SYSCALL_64_after_hwframe+0x76/0x7e > [Tue Sep 2 23:31:49 2025] RIP: 0033:0x7fe43d11988d > [Tue Sep 2 23:31:49 2025] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 > 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f > 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00 > [Tue Sep 2 23:31:49 2025] RSP: 002b:00007fff980905a0 EFLAGS: 00000246 > ORIG_RAX: 0000000000000010 > [Tue Sep 2 23:31:49 2025] RAX: ffffffffffffffda RBX: 00005630873e6e90 RCX: > 00007fe43d11988d > [Tue Sep 2 23:31:49 2025] RDX: 00007fff98090660 RSI: 00000000c0106440 RDI: > 0000000000000012 > [Tue Sep 2 23:31:49 2025] RBP: 00007fff980905f0 R08: 0000000000002191 R09: > 000017aa381e0000 > [Tue Sep 2 23:31:49 2025] R10: 00007fe3bff088c0 R11: 0000000000000246 R12: > 00007fff98090660 > [Tue Sep 2 23:31:49 2025] R13: 00000000c0106440 R14: 0000000000000012 R15: > 0000563087434560 > [Tue Sep 2 23:31:49 2025] </TASK> > [Tue Sep 2 23:31:49 2025] Modules linked in: uinput ccm snd_seq_dummy > snd_hrtimer snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device > rfcomm cmac algif_hash algif_skcipher af_alg bnep zram lz4hc_compress > lz4_compress binfmt_misc btusb btrtl uvcvideo btintel btbcm videobuf2_vmalloc > btmtk uvc videobuf2_memops videobuf2_v4l2 bluetooth videodev videobuf2_common > mc sg crc16 nls_ascii nls_cp437 vfat fat snd_sof_pci_intel_cnl > snd_sof_intel_hda_generic soundwire_intel soundwire_generic_allocation > soundwire_cadence snd_sof_intel_hda_common snd_soc_hdac_hda > snd_sof_intel_hda_mlink intel_rapl_msr snd_sof_intel_hda intel_rapl_common > snd_sof_pci intel_uncore_frequency snd_sof_xtensa_dsp > intel_uncore_frequency_common iwlmvm snd_sof snd_sof_utils > snd_soc_acpi_intel_match snd_soc_acpi soundwire_bus mac80211 snd_soc_avs > snd_hda_codec_realtek x86_pkg_temp_thermal snd_soc_hda_codec intel_powerclamp > snd_hda_ext_core coretemp snd_hda_codec_generic snd_soc_core > snd_hda_scodec_component kvm_intel snd_hda_codec_hdmi snd_compress > [Tue Sep 2 23:31:49 2025] snd_pcm_dmaengine snd_hda_intel libarc4 > snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec kvm iwlwifi snd_hda_core > snd_hwdep snd_pcm_oss irqbypass snd_mixer_oss cfg80211 mei_hdcp mei_pxp rapl > snd_pcm asus_wmi sparse_keymap intel_cstate platform_profile intel_uncore > snd_timer mei_me intel_wmi_thunderbolt ee1004 snd rfkill mei wmi_bmof > soundcore > intel_pch_thermal intel_pmc_core intel_vsec pmt_telemetry acpi_pad pmt_class > ac > acpi_tad joydev evdev msr parport_pc dm_mod ppdev lp parport efi_pstore > configfs nfnetlink efivarfs ip_tables x_tables autofs4 btrfs blake2b_generic > xor sd_mod raid6_pq libcrc32c crc32c_generic uas usb_storage usbhid i915 > nouveau drm_gpuvm drm_exec gpu_sched drm_buddy i2c_algo_bit drm_display_helper > cec hid_multitouch rc_core drm_ttm_helper hid_generic crct10dif_pclmul > crc32_pclmul ttm crc32c_intel i2c_hid_acpi ghash_clmulni_intel ahci iTCO_wdt > i2c_hid sha512_ssse3 xhci_pci intel_pmc_bxt drm_kms_helper hid libahci > xhci_hcd > sha256_ssse3 iTCO_vendor_support nvme libata watchdog sha1_ssse3 > [Tue Sep 2 23:31:49 2025] r8169 drm nvme_core usbcore aesni_intel realtek > thunderbolt mxm_wmi i2c_i801 intel_lpss_pci gf128mul mdio_devres scsi_mod > crypto_simd libphy cryptd serio_raw i2c_smbus intel_lpss nvme_auth idma64 > usb_common scsi_common battery video wmi button > [Tue Sep 2 23:31:49 2025] CR2: 0000000000000000 > [Tue Sep 2 23:31:49 2025] ---[ end trace 0000000000000000 ]--- > [Tue Sep 2 23:31:49 2025] RIP: 0010:nvkm_gr_units+0x9/0x30 [nouveau] > [Tue Sep 2 23:31:49 2025] Code: 74 06 ff e0 cc 66 90 cc 31 c0 c3 cc cc cc cc > 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 > 00 <48> 8b 07 48 8b 40 58 48 85 c0 74 06 ff e0 cc 66 90 cc 31 c0 c3 cc > [Tue Sep 2 23:31:49 2025] RSP: 0018:ffffa1f38e783b70 EFLAGS: 00010246 > [Tue Sep 2 23:31:49 2025] RAX: ffff92a3ba38e000 RBX: ffffa1f38e783c50 RCX: > ffff92a3871f2800 > [Tue Sep 2 23:31:49 2025] RDX: ffff92a38a102400 RSI: ffffa1f38e783c50 RDI: > 0000000000000000 > [Tue Sep 2 23:31:49 2025] RBP: ffff92a432853200 R08: 000000000000000d R09: > 0000000000000b38 > [Tue Sep 2 23:31:49 2025] R10: 0000000000000010 R11: 000000000000001a R12: > ffffffffc0bb61f0 > [Tue Sep 2 23:31:49 2025] R13: ffffa1f38e783c50 R14: ffff92a3ba386000 R15: > 0000000000000010 > [Tue Sep 2 23:31:49 2025] FS: 00007fe43b074940(0000) > GS:ffff92ab1db00000(0000) knlGS:0000000000000000 > [Tue Sep 2 23:31:49 2025] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [Tue Sep 2 23:31:49 2025] CR2: 0000000000000000 CR3: 000000030ae00001 CR4: > 00000000003726f0 > [Tue Sep 2 23:31:49 2025] note: com.github.tchx[4820] exited with irqs > disabled > ```````````````````````````````````````````
Can you please report this issue to upstream. You can contact the initial set of recipients as: Lyude Paul <[email protected]> (maintainer:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS) Danilo Krummrich <[email protected]> (maintainer:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS) David Airlie <[email protected]> (maintainer:DRM DRIVERS) Simona Vetter <[email protected]> (maintainer:DRM DRIVERS) [email protected] (open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS) [email protected] (open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS) [email protected] (open list) Before doing so please test as well the newest kernel available in trixie and in unstable to see if the problem persist in either. Thanks already. Regards, Salvatore

