Commit "eventfs: Do not allow NULL parent to eventfs_start_creating()" had to be dropped. This introduced a warning: "WARNING: CPU: 17 PID: 1 at fs/tracefs/inode.c:408 start_creating+0xe9/0x110" that can be seen during boot testing. The check itself would not be an issue, but the commit was removes the following in start_creating: ``` - /* If the parent is not specified, we create it in the root. - * We need the root dentry to do this, which is in the super - * block. A pointer to that is in the struct vfsmount that we - * have around. - */ - if (!parent) - parent = tracefs_mount->mnt_root; - ``` This is used a lot for entries that are created in the root directory, therefore these entries cannot be created anymore.
``` root@mantic:/home/ubuntu# ll /sys/kernel/tracing/ total 0 drwx------ 2 root root 0 Mar 7 14:29 ./ drwxr-xr-x 16 root root 0 Mar 7 14:29 ../ ``` I would keep the warning entry, but this would create a bit of confusion because we'll deviate from upstream. Therefore, I'll drop the commit -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2051924 Title: Mantic update: upstream stable patchset 2024-02-01 Status in linux package in Ubuntu: Invalid Status in linux source package in Mantic: Fix Committed Bug description: SRU Justification Impact: The upstream process for stable tree updates is quite similar in scope to the Ubuntu SRU process, e.g., each patch has to demonstrably fix a bug, and each patch is vetted by upstream by originating either directly from a mainline/stable Linux tree or a minimally backported form of that patch. The following upstream stable patches should be included in the Ubuntu kernel: upstream stable patchset 2024-02-01 Ported from the following upstream stable releases: v6.1.69, v6.6.8 from git://git.kernel.org/ r8152: add vendor/device ID pair for D-Link DUB-E250 r8152: add vendor/device ID pair for ASUS USB-C2500 ext4: fix warning in ext4_dio_write_end_io() ksmbd: fix memory leak in smb2_lock() afs: Fix refcount underflow from error handling race HID: lenovo: Restrict detection of patched firmware only to USB cptkbd net/mlx5e: Fix possible deadlock on mlx5e_tx_timeout_work net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX qca_debug: Prevent crash on TX ring changes qca_debug: Fix ethtool -G iface tx behavior qca_spi: Fix reset behavior bnxt_en: Fix wrong return value check in bnxt_close_nic() bnxt_en: Fix HWTSTAMP_FILTER_ALL packet timestamp logic atm: solos-pci: Fix potential deadlock on &cli_queue_lock atm: solos-pci: Fix potential deadlock on &tx_queue_lock net: fec: correct queue selection octeontx2-af: fix a use-after-free in rvu_nix_register_reporters octeontx2-pf: Fix promisc mcam entry action octeontx2-af: Update RSS algorithm index atm: Fix Use-After-Free in do_vcc_ioctl iavf: Introduce new state machines for flow director iavf: Handle ntuple on/off based on new state machines for flow director qed: Fix a potential use-after-free in qed_cxt_tables_alloc net: Remove acked SYN flag from packet in the transmit queue correctly net: ena: Destroy correct number of xdp queues upon failure net: ena: Fix xdp drops handling due to multibuf packets net: ena: Fix XDP redirection error stmmac: dwmac-loongson: Make sure MDIO is initialized before use sign-file: Fix incorrect return values check vsock/virtio: Fix unsigned integer wrap around in virtio_transport_has_space() dpaa2-switch: fix size of the dma_unmap dpaa2-switch: do not ask for MDB, VLAN and FDB replay net: stmmac: Handle disabled MDIO busses from devicetree net: atlantic: fix double free in ring reinit logic cred: switch to using atomic_long_t fuse: dax: set fc->dax to NULL in fuse_dax_conn_free() ALSA: hda/hdmi: add force-connect quirk for NUC5CPYB ALSA: hda/hdmi: add force-connect quirks for ASUSTeK Z170 variants ALSA: hda/realtek: Apply mute LED quirk for HP15-db PCI: loongson: Limit MRRS to 256 ksmbd: fix wrong name of SMB2_CREATE_ALLOCATION_SIZE drm/mediatek: Add spinlock for setting vblank event in atomic_begin x86/hyperv: Fix the detection of E820_TYPE_PRAM in a Gen2 VM usb: aqc111: check packet for fixup for true limit stmmac: dwmac-loongson: Add architecture dependency UBUNTU: [Config] updateconfigs for DWMAC_LOONGSON blk-throttle: fix lockdep warning of "cgroup_mutex or RCU read lock required!" blk-cgroup: bypass blkcg_deactivate_policy after destroying bcache: avoid oversize memory allocation by small stripe_size bcache: remove redundant assignment to variable cur_idx bcache: add code comments for bch_btree_node_get() and __bch_btree_node_alloc() bcache: avoid NULL checking to c->root in run_cache_set() nbd: fold nbd config initialization into nbd_alloc_config() nvme-auth: set explanation code for failure2 msgs nvme: catch errors from nvme_configure_metadata() selftests/bpf: fix bpf_loop_bench for new callback verification scheme LoongArch: Add dependency between vmlinuz.efi and vmlinux.efi LoongArch: Implement constant timer shutdown interface platform/x86: intel_telemetry: Fix kernel doc descriptions HID: glorious: fix Glorious Model I HID report HID: add ALWAYS_POLL quirk for Apple kb nbd: pass nbd_sock to nbd_read_reply() instead of index HID: hid-asus: reset the backlight brightness level on resume HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad asm-generic: qspinlock: fix queued_spin_value_unlocked() implementation net: usb: qmi_wwan: claim interface 4 for ZTE MF290 arm64: add dependency between vmlinuz.efi and Image HID: hid-asus: add const to read-only outgoing usb buffer btrfs: do not allow non subvolume root targets for snapshot soundwire: stream: fix NULL pointer dereference for multi_link ext4: prevent the normalized size from exceeding EXT_MAX_BLOCKS arm64: mm: Always make sw-dirty PTEs hw-dirty in pte_modify team: Fix use-after-free when an option instance allocation fails drm/amdgpu/sdma5.2: add begin/end_use ring callbacks dmaengine: stm32-dma: avoid bitfield overflow assertion mm/mglru: fix underprotected page cache mm/shmem: fix race in shmem_undo_range w/THP btrfs: free qgroup reserve when ORDERED_IOERR is set btrfs: don't clear qgroup reserved bit in release_folio drm/amdgpu: fix tear down order in amdgpu_vm_pt_free drm/amd/display: Disable PSR-SU on Parade 0803 TCON again drm/i915: Fix remapped stride with CCS on ADL+ smb: client: fix NULL deref in asn1_ber_decoder() smb: client: fix OOB in smb2_query_reparse_point() ring-buffer: Fix memory leak of free page tracing: Update snapshot buffer on resize if it is allocated ring-buffer: Do not update before stamp when switching sub-buffers ring-buffer: Have saved event hold the entire event ring-buffer: Fix writing to the buffer with max_data_size ring-buffer: Fix a race in rb_time_cmpxchg() for 32 bit archs ring-buffer: Do not try to put back write_stamp ring-buffer: Have rb_time_cmpxchg() set the msb counter too net/mlx5e: Honor user choice of IPsec replay window size net/mlx5e: Ensure that IPsec sequence packet number starts from 1 RDMA/mlx5: Send events from IB driver about device affiliation state net/mlx5e: Disable IPsec offload support if not FW steering net/mlx5e: TC, Don't offload post action rule if not supported net/mlx5: Nack sync reset request when HotPlug is enabled net/mlx5e: Check netdev pointer before checking its net ns net/mlx5: Fix a NULL vs IS_ERR() check bnxt_en: Fix skb recycling logic in bnxt_deliver_skb() net/sched: act_ct: Take per-cb reference to tcf_ct_flow_table octeon_ep: explicitly test for firmware ready value octeontx2-af: Fix pause frame configuration iavf: Fix iavf_shutdown to call iavf_remove instead iavf_close net: ena: Fix DMA syncing in XDP path when SWIOTLB is on net: stmmac: dwmac-qcom-ethqos: Fix drops in 10M SGMII RX cred: get rid of CONFIG_DEBUG_CREDENTIALS UBUNTU: [Config] updateconfigs for DEBUG_CREDENTIALS HID: i2c-hid: Add IDEA5002 to i2c_hid_acpi_blacklist[] HID: Add quirk for Labtec/ODDOR/aikeec handbrake fuse: share lookup state between submount and its parent io_uring/cmd: fix breakage in SOCKET_URING_OP_SIOC* implementation PCI/ASPM: Add pci_enable_link_state_locked() PCI: vmd: Fix potential deadlock when enabling ASPM drm/mediatek: fix kernel oops if no crtc is found drm/i915/selftests: Fix engine reset count storage for multi-tile drm/i915: Use internal class when counting engine resets selftests/mm: cow: print ksft header before printing anything else rxrpc: Fix some minor issues with bundle tracing nbd: factor out a helper to get nbd_config without holding 'config_lock' nbd: fix null-ptr-dereference while accessing 'nbd->config' LoongArch: Record pc instead of offset in la_abs relocation LoongArch: Silence the boot warning about 'nokaslr' HID: mcp2221: Set driver data before I2C adapter add HID: mcp2221: Allow IO to start during probe HID: apple: add Jamesdonkey and A3R to non-apple keyboards list nfc: virtual_ncidev: Add variable to check if ndev is running scripts/checkstack.pl: match all stack sizes for s390 eventfs: Do not allow NULL parent to eventfs_start_creating() cxl/hdm: Fix dpa translation locking Revert "selftests: error out if kernel header files are not yet built" drm/mediatek: Fix access violation in mtk_drm_crtc_dma_dev_get mm/mglru: try to stop at high watermarks mm/mglru: respect min_ttl_ms with memcgs mm/mglru: reclaim offlined memcgs harder btrfs: fix qgroup_free_reserved_data int overflow drm/edid: also call add modes in EDID connector update fallback drm/i915: Fix ADL+ tiled plane stride when the POT stride is smaller than the original drm/i915: Fix intel_atomic_setup_scalers() plane_state handling smb: client: fix potential OOBs in smb2_parse_contexts() x86/speculation, objtool: Use absolute relocations for annotations RDMA/mlx5: Change the key being sent for MPV device affiliation UBUNTU: Upstream stable to v6.1.69, v6.6.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051924/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp