============================================================ Changelog-Zusammenfassung: 6.6.156 (longterm, Branch 6.6) ============================================================ Veröffentlicht: 2026-09-02 Quelle: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.156 91 Commits, davon ca. 71 Fixes Meistbetroffene Bereiche: HID: 9 usb: 6 crypto: 5 x86/CPU/AMD: 5 xfrm: 4 ext4: 4 smc: 4 USB: 3 KI-Zusammenfassung: Linux 6.6.156 is a longterm maintenance release delivering a broad batch of bug fixes and hardening changes across USB, networking, crypto, filesystems, HID, and architecture-specific code. Security-relevant highlights include a use-after-free fix in usbfs's usbdev_release(), an out-of-bounds write in ALSA's snd_usbmidi_novation_output(), an OOB write in HID's pidff driver when hid->inputs is empty, and an authentication-truncation memory leak in xfrm_state_construct(); other notable fixes address UAFs in Bluetooth's hci_sync accept list, tls_append_frag(), and smc socket handling. Filesystem robustness was improved with fixes for ext4 fast-commit error propagation, jfs read-only checks before truncation, nilfs2 GC ioctl bounds validation, and exfat double-free correction, alongside fuse invalidate-lock leak fixes. The release also adds AMD Zen5 CPU model recognition, several xhci/USB gadget and dbgtty fixes, KVM s390/arm64 and x86 MMU hardening, and various driver-level use-after-free and OOB corrections (e.g., HID uclogic, ft260, magicmouse; NVMe status code cleanups; and RDMA rxe OOB fix). Alle Änderungen (91): - usb: usbfs: fix use-after-free of usb_device in usbdev_release() - USB: c67x00: fix use-after-free in c67x00_add_iso_urb() - USB: serial: spcp8x5: drop broken carrier detect support - USB: serial: option: fix slab OOB read in interrupt URB callback - ALSA: usb-audio: Complete cleanup after system-resume errors - ALSA: usb-audio: fix OOB write in snd_usbmidi_novation_output() - usb: core: Strengthen error handling in hub_hub_status() - usb: core: Add lock to usb_wakeup_notification() - KVM: s390: vsie: zero stale crypto bits - crypto: qce - Remove unsafe/deprecated algorithms - crypto: mxs-dcp - fix source scatterlist length access - crypto: qce - fix CCM AAD buffer underallocation - crypto: atmel-tdes - use scatterlist length before DMA mapping - mm/swap: reject swapon() on filesystem-level encrypted files - ipv6: seg6: clear IPv4 control block on IPIP decapsulation - net: bridge: mcast: fix use-after-free of a master VLAN's multicast context - xfrm: fix xfrm_state_construct() auth-trunc leak - xfrm: ah6: validate routing header segments_left - xfrm: drop ESP-in-TCP packets with no ingress device - xfrm: espintcp: fix UAF during close - x86/CPU/AMD: Carve out a Zen5 models range - x86/CPU/AMD: Add models 0x60-0x6f to the Zen5 range - x86/CPU/AMD: Add models 0x10-0x1f to the Zen5 range - x86/CPU/AMD: Add more models to X86_FEATURE_ZEN5 - x86/CPU/AMD: Add X86_FEATURE_ZEN5 - tls: device: fix out-of-bounds write in tls_append_frag() - usb: gadget: f_tcm: keep port count until LUN teardown completes - usb: usbtest: disable dynamic ID support - fuse: fix invalidate lock leak on open O_TRUNC DAX failure - fuse: fix invalidate lock leak on setattr writeback failure - xhci: dbgtty: Fix unregister on tty_alloc_driver() failure - xhci: dbgtty: Fix unregister on tty_register_driver() failure - usb: xhci: Handle USB3 port events when there is one roothub - accessibility: speakup: unregister tty ldisc on later init failures - fpga: dfl: fme: add error handling - xfs: remove file_path tracepoint data - Bluetooth: hci_sync: Fix accept list UAF during suspend - Bluetooth: hci_sync: Use bt_dev_err() to log error message in hci_update_event_filter_sync() - HID: pidff: fix OOB write when hid->inputs is empty - HID: pidff: clang-format pass - HID: pidff: Support device error response from PID_BLOCK_LOAD - HID: uclogic: fix use-after-free of inrange_timer on remove - HID: ft260: fix stack-use-after-return write in I2C read race - HID: ft260: validate i2c input report length - HID: nintendo: stop device IO before hid_hw_stop on probe failure - nvmet-tcp: bound SGL data length before allocating command buffers - nvme: rename CDR/MORE/DNR to NVME_STATUS_* - nvme: fix status magic numbers - nvme: rename nvme_sc_to_pr_err to nvme_status_to_pr_err - HID: magicmouse: prevent unbounded recursion in magicmouse_raw_event() - HID: magicmouse: re-enable multitouch after reset-resume - nfc: nci: add data_len bound checks to activation parameter extractors - nilfs2: reject invalid block index in GC ioctl - nilfs2: correct return value kernel-doc descriptions for ioctl functions - ext4: propagate errors from fast commit range replay - ext4: make some fast commit functions reuse extents path - ext4: make state in ext4_mb_mark_bb to be bool - ksmbd: harden file lifetime during session teardown - crypto: starfive - Do not free stack buffer - powerpc/hv-gpci: fix preempt count leak in sysfs show paths - net/sched: initialize noop_qdisc owner - net/sched: Fix mirred deadlock on device recursion - selinux: switch two allocations to use kzalloc_objs() - smc: Use __sk_dst_get() and dst_dev_rcu() in smc_vlan_by_tcpsk(). - ASoC: nau8821: Cancel pending work before suspend - Revert "PM: sleep: Use complete() in device_pm_sleep_init()" - riscv: Fix register corruption from uninitialized cregs on error - bpf: Fix use-after-free in offloaded map/prog info fill - ASoC: nau8821: Cancel delayed work on component remove - smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match(). - smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set(). - KVM: arm64: Prevent access to vCPU events before init - smc: Fix use-after-free in __pnet_find_base_ndev(). - can: j1939: make j1939_sk_bind() fail if device is no longer registered - can: j1939: add missing calls in NETDEV_UNREGISTER notification handler - can: j1939: implement NETDEV_UNREGISTER notification handler - mISDN: hfcpci: Fix warning when deleting uninitialized timer - media: platform: exynos4-is: Add hardware sync wait to fimc_is_hw_change_mode() - exfat: fix double free in delayed_free - jfs: Fix null-ptr-deref in jfs_ioc_trim - ibmvnic: Use kernel helpers for hex dumps - jfs: add check read-only before txBeginAnon() call - jfs: add check read-only before truncation in jfs_truncate_nolock() - bpf: Remove tst_run from lwt_seg6local_prog_ops. - perf: Reject exited events as group leaders - bpf: Ensure reg is PTR_TO_STACK in process_iter_arg - Revert "usb: phy: fsl-usb: Fix use-after-free in delayed work during device removal" - io_uring/io-wq: fix worker accounting when canceling creation callbacks - ext4: don't enable DAX on new encrypted files - KVM: x86/mmu: Check write tracking in all address spaces - RDMA/rxe: Fix OOB in free_rd_atomic_resources()