CVE-2026-98099

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: use rcu_assign_pointer() for __rcu list updates Several places in net/ipv6/mcast.c update RCU-protected lists (np->ipv6_mc_list, idev->mc_list, idev->mc_tomb) using direct pointer assignments instead of rcu_assign_pointer(): 1. In __ipv6_dev_mc_dec(), unlinking a group from idev->mc_list did: *map = ma->next; without rcu_assign_pointer() while concurrent readers traverse idev->mc_list locklessly under rcu_read_lock(). 2. In ipv6_sock_mc_drop() and __ipv6_sock_mc_close(), unlinking a group from np->ipv6_mc_list directly assigned *lnk = mc_lst->next and np->ipv6_mc_list = mc_lst->next without rcu_assign_pointer(), racing with lockless readers in inet6_mc_check(). 3. In __ipv6_sock_mc_join(), mc_lst->next was initialized to np->ipv6_mc_list via raw assignment before publishing mc_lst. 4. In mld_del_delrec() and __ipv6_dev_mc_inc(), __rcu source pointers passed into rcu_assign_pointer() lacked explicit dereference helpers. Fix these by consistently using rcu_assign_pointer() along with mc_dereference() / sock_dereference().

In the Linux kernel, the following vulnerability has been resolved:

ipv6: mcast: use rcu_assign_pointer() for __rcu list updates

Several places in net/ipv6/mcast.c update RCU-protected lists (np->ipv6_mc_list, idev->mc_list, idev->mc_tomb) using direct pointer assignments instead of rcu_assign_pointer():

1. In __ipv6_dev_mc_dec(), unlinking a group from idev->mc_list did: *map = ma->next; without rcu_assign_pointer() while concurrent readers traverse idev->mc_list locklessly under rcu_read_lock().
2. In ipv6_sock_mc_drop() and __ipv6_sock_mc_close(), unlinking a group from np->ipv6_mc_list directly assigned *lnk = mc_lst->next and np->ipv6_mc_list = mc_lst->next without rcu_assign_pointer(), racing with lockless readers in inet6_mc_check().
3. In __ipv6_sock_mc_join(), mc_lst->next was initialized to np->ipv6_mc_list via raw assignment before publishing mc_lst.
4. In mld_del_delrec() and __ipv6_dev_mc_inc(), __rcu source pointers passed into rcu_assign_pointer() lacked explicit dereference helpers.

Fix these by consistently using rcu_assign_pointer() along with mc_dereference() / sock_dereference().

• Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count {CVE-2026-64276}
• media: av7110: prevent underflow in write_ts_to_decoder() {CVE-2023-54284}
• usb: usbtmc: check URB actual_length for interrupt-IN notifications {CVE-2026-63904}
• usb: usbfs: fix use-after-free of usb_device in usbdev_release() {CVE-2026-80824}
• HID: alps: fix use-after-free on input2 registration failure {CVE-2026-98501}
• scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup() {CVE-2023-53754}
• net: atl1: fix soft lockup on out-of-range cmb_tpd_next_to_clean read {CVE-2026-98494}
• net: atl1e: fix soft lockup on out-of-range hw_next_to_clean read {CVE-2026-98488}
• net: atl1c: fix soft lockup on out-of-range tpd_cons read {CVE-2026-98489}
• net: ena: fix MMIO read buffer leak on probe failure {CVE-2026-98486}
• HID: wacom: Fix OOB write in wacom_hid_set_device_mode() {CVE-2026-63916}
• net/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put {CVE-2026-98015}
• RDMA/srp: Do not call scsi_done() from srp_abort() {CVE-2023-52515}
• net: usb: kalmia: bound RX frame length in kalmia_rx_fixup() {CVE-2026-64351}
• dm: fix a buffer overflow in ioctl processing {CVE-2026-46294}
• ext4: fix dirtyclusters double decrement on fs shutdown {CVE-2026-45920}
• NFSv4/flexfiles: reject zero filehandle version count {CVE-2026-53392}
• btrfs: fix race when deleting free space root from the dirty cow roots list {CVE-2023-54067}
• libnvdimm/labels: Prevent integer overflow in __nd_label_validate() {CVE-2026-89559}
• nvdimm/btt: reject an arena whose nfree is below the lane count {CVE-2026-89965}
• NFSv4.2: fix LAYOUTSTATS send buffer exhaustion {CVE-2026-90103}
• vsock/vmci: fix UAF when peer resets connection during handshake {CVE-2026-64115}
• ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate(). {CVE-2026-63921}
• net/sched: act_tunnel_key: Defer dst_release to RCU callback {CVE-2026-68377}
• RDMA/srp: fix heap information leak on a truncated SRP_CRED_REQ {CVE-2026-90307}
• ALSA: usbusx2y: validate URB actual_length in interrupt callback {CVE-2026-97929}
• ALSA: usbusx2y: fix in04_last array size mismatch with in04_buf {CVE-2026-97930}
• udf: Mark LVID buffer as uptodate before marking it dirty {CVE-2026-93140}
• PCI/proc: Use file_ns_capable() when checking config space read access {CVE-2026-93206}
• wifi: iwlwifi: mvm: validate TX_CMD response layout {CVE-2026-93793}
• smb: client: honor forceuid/forcegid when mapping SIDs to uid/gid {CVE-2026-97561}
• wifi: brcmfmac: fix P2P action frame handling without device vif {CVE-2026-90345}
• IB/isert: post the full-feature receive buffers after session registration {CVE-2026-90293}
• IB/isert: delay the final Login Response until the session is registered {CVE-2026-90294}
• NFSv4: remove callback IDR entry on client allocation failure {CVE-2026-90151}
• sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE {CVE-2026-90235}
• RDMA/core: Reject unregistering netdevs in ib_get_eth_speed {CVE-2026-98359}
• ipv6: mcast: use rcu_assign_pointer() for __rcu list updates {CVE-2026-98099}
• wifi: cfg80211: reject duplicate wiphy cipher suite entries {CVE-2026-97518}
• IB/iser: reject a remote invalidation of an unregistered direction {CVE-2026-98358}
• ext4: validate readdir offset before accessing dirent {CVE-2026-92499}
• mtd: part: reject MTDPART_OFS_RETAIN in mtd_add_partition() {CVE-2026-93048}
• misc: sgi-gru: remove interrupt-context page-table walks {CVE-2026-90383}
• ACPI: bus: Introduce acpi_bus_get_primary_device() {CVE-2026-93251}
• scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition() {CVE-2026-89861}
• smb: client: reject a tree connect response whose byte count is too small {CVE-2026-89631}
• tcp: clamp route advmss to TCP_MIN_MSS {CVE-2026-80847}
• fsnotify: Fix stale object mask after concurrent mark updates {CVE-2026-89595}
• smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions {CVE-2026-89638}
• sunrpc: init…

• Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count {CVE-2026-64276}
• media: av7110: prevent underflow in write_ts_to_decoder() {CVE-2023-54284}
• usb: usbtmc: check URB actual_length for interrupt-IN notifications {CVE-2026-63904}
• usb: usbfs: fix use-after-free of usb_device in usbdev_release() {CVE-2026-80824}
• HID: alps: fix use-after-free on input2 registration failure {CVE-2026-98501}
• scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup() {CVE-2023-53754}
• net: atl1: fix soft lockup on out-of-range cmb_tpd_next_to_clean read {CVE-2026-98494}
• net: atl1e: fix soft lockup on out-of-range hw_next_to_clean read {CVE-2026-98488}
• net: atl1c: fix soft lockup on out-of-range tpd_cons read {CVE-2026-98489}
• net: ena: fix MMIO read buffer leak on probe failure {CVE-2026-98486}
• HID: wacom: Fix OOB write in wacom_hid_set_device_mode() {CVE-2026-63916}
• net/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put {CVE-2026-98015}
• RDMA/srp: Do not call scsi_done() from srp_abort() {CVE-2023-52515}
• net: usb: kalmia: bound RX frame length in kalmia_rx_fixup() {CVE-2026-64351}
• dm: fix a buffer overflow in ioctl processing {CVE-2026-46294}
• ext4: fix dirtyclusters double decrement on fs shutdown {CVE-2026-45920}
• NFSv4/flexfiles: reject zero filehandle version count {CVE-2026-53392}
• btrfs: fix race when deleting free space root from the dirty cow roots list {CVE-2023-54067}
• libnvdimm/labels: Prevent integer overflow in __nd_label_validate() {CVE-2026-89559}
• nvdimm/btt: reject an arena whose nfree is below the lane count {CVE-2026-89965}
• NFSv4.2: fix LAYOUTSTATS send buffer exhaustion {CVE-2026-90103}
• vsock/vmci: fix UAF when peer resets connection during handshake {CVE-2026-64115}
• ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate(). {CVE-2026-63921}
• net/sched: act_tunnel_key: Defer dst_release to RCU callback {CVE-2026-68377}
• RDMA/srp: fix heap information leak on a truncated SRP_CRED_REQ {CVE-2026-90307}
• ALSA: usbusx2y: validate URB actual_length in interrupt callback {CVE-2026-97929}
• ALSA: usbusx2y: fix in04_last array size mismatch with in04_buf {CVE-2026-97930}
• udf: Mark LVID buffer as uptodate before marking it dirty {CVE-2026-93140}
• PCI/proc: Use file_ns_capable() when checking config space read access {CVE-2026-93206}
• wifi: iwlwifi: mvm: validate TX_CMD response layout {CVE-2026-93793}
• smb: client: honor forceuid/forcegid when mapping SIDs to uid/gid {CVE-2026-97561}
• wifi: brcmfmac: fix P2P action frame handling without device vif {CVE-2026-90345}
• IB/isert: post the full-feature receive buffers after session registration {CVE-2026-90293}
• IB/isert: delay the final Login Response until the session is registered {CVE-2026-90294}
• NFSv4: remove callback IDR entry on client allocation failure {CVE-2026-90151}
• sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE {CVE-2026-90235}
• RDMA/core: Reject unregistering netdevs in ib_get_eth_speed {CVE-2026-98359}
• ipv6: mcast: use rcu_assign_pointer() for __rcu list updates {CVE-2026-98099}
• wifi: cfg80211: reject duplicate wiphy cipher suite entries {CVE-2026-97518}
• IB/iser: reject a remote invalidation of an unregistered direction {CVE-2026-98358}
• ext4: validate readdir offset before accessing dirent {CVE-2026-92499}
• mtd: part: reject MTDPART_OFS_RETAIN in mtd_add_partition() {CVE-2026-93048}
• misc: sgi-gru: remove interrupt-context page-table walks {CVE-2026-90383}
• ACPI: bus: Introduce acpi_bus_get_primary_device() {CVE-2026-93251}
• scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition() {CVE-2026-89861}
• smb: client: reject a tree connect response whose byte count is too small {CVE-2026-89631}
• tcp: clamp route advmss to TCP_MIN_MSS {CVE-2026-80847}
• fsnotify: Fix stale object mask after concurrent mark updates {CVE-2026-89595}
• smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions {CVE-2026-89638}
• sunrpc: init…

In the Linux kernel, the following vulnerability has been resolved:

ipv6: mcast: use rcu_assign_pointer() for __rcu list updates

Several places in net/ipv6/mcast.c update RCU-protected lists (np->ipv6_mc_list, idev->mc_list, idev->mc_tomb) using direct pointer assignments instead of rcu_assign_pointer():

1. In __ipv6_dev_mc_dec(), unlinking a group from idev->mc_list did: *map = ma->next; without rcu_assign_pointer() while concurrent readers traverse idev->mc_list locklessly under rcu_read_lock().
2. In ipv6_sock_mc_drop() and __ipv6_sock_mc_close(), unlinking a group from np->ipv6_mc_list directly assigned *lnk = mc_lst->next and np->ipv6_mc_list = mc_lst->next without rcu_assign_pointer(), racing with lockless readers in inet6_mc_check().
3. In __ipv6_sock_mc_join(), mc_lst->next was initialized to np->ipv6_mc_list via raw assignment before publishing mc_lst.
4. In mld_del_delrec() and __ipv6_dev_mc_inc(), __rcu source pointers passed into rcu_assign_pointer() lacked explicit dereference helpers.

Fix these by consistently using rcu_assign_pointer() along with mc_dereference() / sock_dereference().

These are all security issues fixed in the kernel-devel-7.2.9-1.1 package on the GA media of openSUSE Tumbleweed.

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• USB Gadget drivers;
• Memory management;
• Multiple devices driver;
• ARM64 architecture;
• EROFS file system;
• Networking core;
• eXpress Data Path;
• ARM32 architecture;
• M68K architecture;
• MIPS architecture;
• OpenRISC architecture;
• PA-RISC architecture;
• PowerPC architecture;
• RISC-V architecture;
• S390 architecture;
• User-Mode Linux (UML);
• x86 architecture;
• Block layer subsystem;
• Cryptographic API;
• Compute Acceleration Framework;
• Intel NPU Driver;
• Speakup Console Speech Driver;
• ACPI drivers;
• Serial ATA and Parallel ATA drivers;
• Auxiliary display drivers;
• Drivers core;
• Micron PCIe SSD driver;
• Null block device driver;
• Ublk userspace block driver;
• Compressed RAM block device driver;
• Bluetooth drivers;
• Bus devices;
• AMD CDX bus driver;
• Hardware random number generator core;
• Character device driver;
• TPM device driver;
• Clock framework and drivers;
• Clocksource drivers;
• CPU frequency scaling framework;
• CPU idle management framework;
• Hardware crypto device drivers;
• CXL (Compute Express Link) drivers;
• DAX dirext access to differentiated memory framework;
• DIBS (Direct Internal Buffer Sharing) drivers;
• Buffer Sharing and Synchronization framework;
• DMA engine subsystem;
• EDAC drivers;
• FireWire subsystem;
• ARM SCMI message protocol;
• ARM SCPI message protocol;
• Google firmware drivers;
• Qualcomm firmware drivers;
• FPGA Framework;
• GPIO subsystem;
• GPU drivers;
• HID subsystem;
• HSI subsystem;
• Microsoft Hyper-V drivers;
• Hardware monitoring drivers;
• CoreSight HW tracing drivers;
• I2C subsystem;
• I3C subsystem;
• IIO subsystem;
• InfiniBand drivers;
• Input Device core drivers;
• Input Device (Miscellaneous) drivers;
• Input Device (Mouse) drivers;
• On-Chip Interconnect management framework;
• IOMMU subsystem;
• Industry Pack bus drivers;
• IRQ chip drivers;
• Mailbox framework;
• Media drivers;
• MemoryStick subsystem;
• Multifunction device drivers;
• Analog Devices digital potentiometer driver;
• Broadcom VK accelerator driver;
• Fastrpc Driver;
• Amazon Nitro Secure Module driver;
• SGI GRU driver;
• MMC subsystem;
• MTD block device drivers;
• Network drivers;
• Ethernet bonding driver;
• Mellanox network drivers;
• Microsoft Azure Network Adapter (MANA) driver;
• STMicroelectronics network drivers;
• Texas Instruments network drivers;
• MediaTek network drivers;
• Near Field Communication (NFC) drivers;
• NTB driver;
• NVDIMM (Non-Volatile Memory Device) drivers;
• NVME drivers;
• Device tree and open firmware driver;
• Operating Performance Points (OPP) driver;
• PA-RISC drivers;
• PCI subsystem;
• Performance monitor drivers;
• PHY drivers;
• Pin controllers subsystem;
• Chrome hardware platform drivers;
• Mellanox platform drivers;
• Microsoft Surface platform drivers;
• x86 platform drivers;
• MediaTek PM domains;
• Power sequencing drivers;
• Power supply drivers;
• Powercap sysfs driver;
• PTP clock framework;
• PWM drivers;
• RapidIO drivers;
• Voltage and Current Regulator drivers;
• Remote Processor subsystem;
• MPAM driver;
• RPMSG subsystem;
• Real Time Clock drivers;
• S/390 drivers;
• SCSI subsystem;
• ASPEED SoC drivers;
• Samsung SoC drivers;
• SPI subsystem;
• small TFT LCD display modules;
• Greybus lights staging drivers;
• Media staging drivers;
• Realtek RTL8723BS SDIO drivers;
• TCM subsystem;
• Trusted Execution Environment drivers;
• Thermal drivers;
• Thunderbolt and USB4 drivers;
• TTY drivers;
• UFS subsystem;
• Userspace I/O drivers;
• USB DSL drivers;
• Cypress C67X00 USB…

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• USB Gadget drivers;
• Memory management;
• Multiple devices driver;
• ARM64 architecture;
• EROFS file system;
• Networking core;
• eXpress Data Path;
• ARM32 architecture;
• M68K architecture;
• MIPS architecture;
• OpenRISC architecture;
• PA-RISC architecture;
• PowerPC architecture;
• RISC-V architecture;
• S390 architecture;
• User-Mode Linux (UML);
• x86 architecture;
• Block layer subsystem;
• Cryptographic API;
• Compute Acceleration Framework;
• Intel NPU Driver;
• Speakup Console Speech Driver;
• ACPI drivers;
• Serial ATA and Parallel ATA drivers;
• Auxiliary display drivers;
• Drivers core;
• Micron PCIe SSD driver;
• Null block device driver;
• Ublk userspace block driver;
• Compressed RAM block device driver;
• Bluetooth drivers;
• Bus devices;
• AMD CDX bus driver;
• Hardware random number generator core;
• Character device driver;
• TPM device driver;
• Clock framework and drivers;
• Clocksource drivers;
• CPU frequency scaling framework;
• CPU idle management framework;
• Hardware crypto device drivers;
• CXL (Compute Express Link) drivers;
• DAX dirext access to differentiated memory framework;
• DIBS (Direct Internal Buffer Sharing) drivers;
• Buffer Sharing and Synchronization framework;
• DMA engine subsystem;
• EDAC drivers;
• FireWire subsystem;
• ARM SCMI message protocol;
• ARM SCPI message protocol;
• Google firmware drivers;
• Qualcomm firmware drivers;
• FPGA Framework;
• GPIO subsystem;
• GPU drivers;
• HID subsystem;
• HSI subsystem;
• Microsoft Hyper-V drivers;
• Hardware monitoring drivers;
• CoreSight HW tracing drivers;
• I2C subsystem;
• I3C subsystem;
• IIO subsystem;
• InfiniBand drivers;
• Input Device core drivers;
• Input Device (Miscellaneous) drivers;
• Input Device (Mouse) drivers;
• On-Chip Interconnect management framework;
• IOMMU subsystem;
• Industry Pack bus drivers;
• IRQ chip drivers;
• Mailbox framework;
• Media drivers;
• MemoryStick subsystem;
• Multifunction device drivers;
• Analog Devices digital potentiometer driver;
• Broadcom VK accelerator driver;
• Fastrpc Driver;
• Amazon Nitro Secure Module driver;
• SGI GRU driver;
• MMC subsystem;
• MTD block device drivers;
• Network drivers;
• Ethernet bonding driver;
• Mellanox network drivers;
• Microsoft Azure Network Adapter (MANA) driver;
• STMicroelectronics network drivers;
• Texas Instruments network drivers;
• MediaTek network drivers;
• Near Field Communication (NFC) drivers;
• NTB driver;
• NVDIMM (Non-Volatile Memory Device) drivers;
• NVME drivers;
• Device tree and open firmware driver;
• Operating Performance Points (OPP) driver;
• PA-RISC drivers;
• PCI subsystem;
• Performance monitor drivers;
• PHY drivers;
• Pin controllers subsystem;
• Chrome hardware platform drivers;
• Mellanox platform drivers;
• Microsoft Surface platform drivers;
• x86 platform drivers;
• MediaTek PM domains;
• Power sequencing drivers;
• Power supply drivers;
• Powercap sysfs driver;
• PTP clock framework;
• PWM drivers;
• RapidIO drivers;
• Voltage and Current Regulator drivers;
• Remote Processor subsystem;
• MPAM driver;
• RPMSG subsystem;
• Real Time Clock drivers;
• S/390 drivers;
• SCSI subsystem;
• ASPEED SoC drivers;
• Samsung SoC drivers;
• SPI subsystem;
• small TFT LCD display modules;
• Greybus lights staging drivers;
• Media staging drivers;
• Realtek RTL8723BS SDIO drivers;
• TCM subsystem;
• Trusted Execution Environment drivers;
• Thermal drivers;
• Thunderbolt and USB4 drivers;
• TTY drivers;
• UFS subsystem;
• Userspace I/O drivers;
• USB DSL drivers;
• Cypress C67X00 USB…