Linux 6.6.121

From: Greg Kroah-Hartman

Date: Sat Jan 17 2026 - 10:47:38 EST


I'm announcing the release of the 6.6.121 kernel.

All users of the 6.6 kernel series must upgrade.

The updated 6.6.y git tree can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.6.y
and can be browsed at the normal kernel.org git web browser:
https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary

thanks,

greg k-h

------------

Makefile | 2
arch/alpha/include/uapi/asm/ioctls.h | 8
arch/arm/Kconfig | 2
arch/arm/boot/dts/nxp/imx/imx6q-ba16.dtsi | 2
arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi | 1
arch/arm64/boot/dts/freescale/imx8qm-mek.dts | 1
arch/csky/mm/fault.c | 4
arch/loongarch/include/asm/inst.h | 13 +
arch/riscv/include/asm/cacheflush.h | 15 -
arch/riscv/kernel/probes/uprobes.c | 10
arch/x86/kernel/cpu/microcode/amd.c | 104 +++++---
drivers/atm/he.c | 3
drivers/counter/104-quad-8.c | 20 +
drivers/counter/interrupt-cnt.c | 3
drivers/gpio/gpio-pca953x.c | 93 +++++--
drivers/gpio/gpio-rockchip.c | 1
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 8
drivers/gpu/drm/pl111/pl111_drv.c | 2
drivers/gpu/drm/radeon/pptable.h | 2
drivers/hid/hid-quirks.c | 9
drivers/md/dm-exception-store.h | 2
drivers/md/dm-snap.c | 73 ++---
drivers/misc/mei/hw-me-regs.h | 2
drivers/misc/mei/pci-me.c | 2
drivers/net/ethernet/3com/3c59x.c | 2
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 15 -
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 4
drivers/net/ethernet/freescale/enetc/enetc.h | 4
drivers/net/ethernet/marvell/prestera/prestera_devlink.c | 2
drivers/net/ethernet/mellanox/mlx5/core/port.c | 3
drivers/net/ethernet/mscc/ocelot.c | 6
drivers/net/usb/pegasus.c | 2
drivers/net/wwan/iosm/iosm_ipc_mux.c | 6
drivers/pinctrl/qcom/pinctrl-lpass-lpi.c | 2
drivers/powercap/powercap_sys.c | 22 +
drivers/scsi/ipr.c | 28 ++
drivers/scsi/libsas/sas_internal.h | 14 -
drivers/scsi/sg.c | 20 +
drivers/ufs/core/ufshcd.c | 36 ++
fs/btrfs/tree-log.c | 6
fs/nfs/Kconfig | 1
fs/nfs/namespace.c | 5
fs/nfs/nfs2xdr.c | 70 -----
fs/nfs/nfs3xdr.c | 108 +-------
fs/nfs/nfs4proc.c | 13 -
fs/nfs/nfs4trace.h | 1
fs/nfs/nfs4xdr.c | 4
fs/nfs_common/Makefile | 2
fs/nfs_common/common.c | 66 +++++
fs/nfsd/Kconfig | 1
fs/nfsd/blocklayout.c | 3
fs/nfsd/netns.h | 2
fs/nfsd/nfs3proc.c | 10
fs/nfsd/nfs3xdr.c | 5
fs/nfsd/nfs4proc.c | 13 -
fs/nfsd/nfs4state.c | 44 +++
fs/nfsd/nfsctl.c | 5
fs/nfsd/nfsd.h | 1
fs/nfsd/nfsproc.c | 6
fs/nfsd/state.h | 2
fs/nfsd/vfs.c | 26 +-
fs/nfsd/vfs.h | 11
fs/nfsd/xdr3.h | 2
fs/smb/client/nterr.h | 6
include/linux/netdevice.h | 3
include/linux/nfs_common.h | 16 +
include/net/dst.h | 12
include/net/netfilter/nf_tables.h | 34 ++
include/trace/misc/nfs.h | 3
include/uapi/linux/nfs.h | 1
lib/crypto/aes.c | 4
mm/ksm.c | 126 ++++++++--
net/bpf/test_run.c | 60 +++-
net/bridge/br_vlan_tunnel.c | 11
net/can/j1939/transport.c | 2
net/ceph/messenger_v2.c | 2
net/ceph/mon_client.c | 2
net/ceph/osd_client.c | 14 -
net/ceph/osdmap.c | 24 +
net/core/skbuff.c | 8
net/core/sock.c | 7
net/ipv4/arp.c | 7
net/ipv4/ip_output.c | 15 -
net/ipv4/ping.c | 4
net/netfilter/nf_conncount.c | 2
net/netfilter/nf_tables_api.c | 72 +++++
net/netfilter/nft_synproxy.c | 6
net/sched/sch_qfq.c | 2
net/tls/tls_device.c | 18 -
net/wireless/wext-core.c | 4
net/wireless/wext-priv.c | 4
sound/ac97/bus.c | 32 +-
sound/soc/amd/yc/acp6x-mach.c | 7
sound/soc/fsl/fsl_sai.c | 3
sound/usb/quirks.c | 10
tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c | 96 +++++++
tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c | 4
tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_grow.c | 8
98 files changed, 1057 insertions(+), 527 deletions(-)

Alex Deucher (1):
drm/radeon: Remove __counted_by from ClockInfoArray.clockInfo[]

Alexander Stein (1):
ASoC: fsl_sai: Add missing registers to cache default

Alexander Sverdlin (1):
counter: interrupt-cnt: Drop IRQF_NO_THREAD flag

Alexander Usyskin (1):
mei: me: add nova lake point S DID

Alexandre Knecht (1):
bridge: fix C-VLAN preservation in 802.1ad vlan_tunnel egress

Alok Tiwari (1):
net: marvell: prestera: fix NULL dereference on devlink_alloc() failure

Amery Hung (2):
bpf: Make variables in bpf_prog_test_run_xdp less confusing
bpf: Support specifying linear xdp packet data size for BPF_PROG_TEST_RUN

Andrew Elantsev (1):
ASoC: amd: yc: Add quirk for Honor MagicBook X16 2025

Andy Shevchenko (2):
gpio: pca953x: Utilise dev_err_probe() where it makes sense
gpio: pca953x: Utilise temporary variable for struct device

Bartosz Golaszewski (2):
gpio: rockchip: mark the GPIO controller as sleeping
pinctrl: qcom: lpass-lpi: mark the GPIO controller as sleeping

Björn Töpel (2):
riscv: uprobes: Add missing fence.i after building the XOL buffer
riscv: Replace function-like macro by static inline function

Borislav Petkov (AMD) (1):
x86/microcode/AMD: Select which microcode patch to load

Brian Kao (1):
scsi: ufs: core: Fix EH failure after W-LUN resume error

Charlene Liu (1):
drm/amd/display: Fix DP no audio issue

Chen Hanxiao (1):
NFS: trace: show TIMEDOUT instead of 0x6e

ChenXiaoSong (3):
smb/client: fix NT_STATUS_UNABLE_TO_FREE_VM value
smb/client: fix NT_STATUS_DEVICE_DOOR_OPEN value
smb/client: fix NT_STATUS_NO_DATA_DETECTED value

Chuck Lever (2):
NFSD: NFSv4 file creation neglects setting ACL
NFSD: Remove NFSERR_EAGAIN

Di Zhu (1):
netdev: preserve NETIF_F_ALL_FOR_ALL across TSO updates

Eric Biggers (1):
lib/crypto: aes: Fix missing MMU protection for AES S-box

Eric Dumazet (2):
wifi: avoid kernel-infoleak from struct iw_point
arp: do not assume dev_hard_header() does not change skb->head

Ernest Van Hoecke (1):
gpio: pca953x: handle short interrupt pulses on PCAL devices

Fernando Fernandez Mancera (2):
netfilter: nft_synproxy: avoid possible data-race on update operation
netfilter: nf_conncount: update last_gc only when GC has been performed

Filipe Manana (1):
btrfs: always detect conflicting inodes when logging inode refs

Florian Westphal (1):
netfilter: nf_tables: avoid chain re-validation if possible

Gal Pressman (1):
net/mlx5e: Don't print error message due to invalid module

Greg Kroah-Hartman (1):
Linux 6.6.121

Haibo Chen (1):
arm64: dts: add off-on-delay-us for usdhc2 regulator

Haotian Zhang (1):
counter: 104-quad-8: Fix incorrect return value in IRQ handler

Haoxiang Li (1):
ALSA: ac97: fix a double free in snd_ac97_controller_register()

Hengqi Chen (1):
LoongArch: Add more instruction opcodes and emit_* helpers

Ian Ray (1):
ARM: dts: imx6q-ba16: fix RTC interrupt level

Ilya Dryomov (3):
libceph: replace overzealous BUG_ON in osdmap_apply_incremental()
libceph: return the handler error from mon_handle_auth_done()
libceph: make calc_target() set t->paused, not just clear it

Jeff Layton (1):
nfsd: convert to new timestamp accessors

Jerry Wu (1):
net: mscc: ocelot: Fix crash when adding interface under a lag

Jussi Laako (1):
ALSA: usb-audio: Update for native DSD support quirks

Kuniyuki Iwashima (1):
tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().

Marek Vasut (1):
arm64: dts: imx8mp: Fix LAN8740Ai PHY reference clock on DH electronics i.MX8M Plus DHCOM

Miaoqian Lin (1):
drm/pl111: Fix error handling in pl111_amba_probe

Michal Rábek (1):
scsi: sg: Fix occasional bogus elapsed time that exceeds timeout

Mike Snitzer (1):
nfs_common: factor out nfs_errtbl and nfs_stat_to_errno

Mikulas Patocka (1):
dm-snapshot: fix 'scheduling while atomic' on real-time kernels

Mohammad Heib (1):
net: fix memory leak in skb_segment_list for GRO packets

NeilBrown (1):
nfsd: provide locking for v4_end_grace

Pedro Demarchi Gomes (1):
ksm: use range-walk function to jump over holes in scan_get_next_rmap_item

Petko Manolov (1):
net: usb: pegasus: fix memory leak in update_eth_regs_async()

Potin Lai (1):
gpio: pca953x: Add support for level-triggered interrupts

René Rebe (1):
HID: quirks: work around VID/PID conflict for appledisplay

Sam Edwards (1):
libceph: reset sparse-read state in osd_fault()

Sam James (1):
alpha: don't reference obsolete termio struct for TC* constants

Sascha Hauer (1):
gpio: pca953x: fix wrong error probe return value

Scott Mayhew (2):
NFSD: Fix permission check for read access to executable-only files
NFSv4: ensure the open stateid seqid doesn't go backwards

Sebastian Andrzej Siewior (1):
ARM: 9461/1: Disable HIGHPTE on PREEMPT_RT kernels

Sharath Chandra Vurukala (1):
net: Add locking to protect skb->dev access in ip_output

Shardul Bankar (1):
bpf: test_run: Fix ctx leak in bpf_prog_test_run_xdp error path

Srijit Bose (1):
bnxt_en: Fix potential data corruption with HW GRO/LRO

Stephen Smalley (1):
nfsd: set security label during create operations

Sumeet Pawnikar (2):
powercap: fix race condition in register_control_type()
powercap: fix sscanf() error return value handling

Takashi Iwai (1):
ALSA: ac97bus: Use guard() for mutex locks

Tetsuo Handa (2):
bpf: Fix reference count leak in bpf_prog_test_run_xdp()
can: j1939: make j1939_session_activate() fail if device is no longer registered

Thomas Fourier (2):
atm: Fix dma_free_coherent() size
net: 3com: 3c59x: fix possible null dereference in vortex_probe1()

Toke Høiland-Jørgensen (1):
bpf, test_run: Subtract size of xdp_frame from allowed metadata size

Trond Myklebust (2):
nfsd: Fix NFSv3 atomicity bugs in nfsd_setattr()
NFS: Fix up the automount fs_context to use the correct cred

Tuo Li (1):
libceph: make free_choose_arg_map() resilient to partial allocation

Wei Fang (1):
net: enetc: fix build warning when PAGE_SIZE is greater than 128K

Weiming Shi (1):
net: sock: fix hardened usercopy panic in sock_recv_errqueue

Wen Xiong (1):
scsi: ipr: Enable/disable IRQD_NO_BALANCING during reset

Xiang Mei (1):
net/sched: sch_qfq: Fix NULL deref when deactivating inactive aggregate in qfq_reset

Xingui Yang (1):
scsi: Revert "scsi: libsas: Fix exp-attached device scan after probe failure scanned in again after probe failed"

Yang Li (1):
csky: fix csky_cmpxchg_fixup not working

Yonghong Song (1):
bpf: Fix an issue in bpf_prog_test_run_xdp when page size greater than 4K

Zilin Guan (2):
netfilter: nf_tables: fix memory leak in nf_tables_newrule()
net: wwan: iosm: Fix memory leak in ipc_mux_deinit()

yuan.gao (1):
inet: ping: Fix icmp out counting

ziming zhang (1):
libceph: prevent potential out-of-bounds reads in handle_auth_done()