CVE-2026-93804

• can: esd_usb: kill anchored URBs before freeing netdevs {CVE-2026-64585}
• ext4: fix kernel BUG in ext4_write_inline_data_end {CVE-2026-74308}
• netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop {CVE-2026-72348}
• xfrm6: clear dst.dev on error to avoid double netdev_put in xfrm6_fill_dst() {CVE-2026-64580}
• platform/x86: dell-laptop: fix missing cleanups in init error path {CVE-2026-72144}
• ALSA: seq: Clear variable event pointer on read {CVE-2026-74339}
• netfilter: xt_cluster: reject template conntracks in hash match {CVE-2026-72256}
• net/sched: cls_flow: Dont expose folded kernel pointers {CVE-2026-74290}
• mfd: sm501: Fix reference leak on failed device registration {CVE-2026-72240}
• net: atm: reject out-of-range traffic classes in QoS validation {CVE-2026-72297}
• ALSA: caiaq: fix out-of-bounds read in the Traktor Kontrol S4 input parser {CVE-2026-64487}
• scsi: fcoe: Reject FIP descriptors with zero fip_dlen in CVL walker {CVE-2026-63890}
• net/sched: fix pedit partial COW leading to page cache corruption {CVE-2026-46331}
• RDMA/cxgb4: free STAG index when TPT entry write fails {CVE-2026-90415}
• isofs: release zisofs block pointer buffer head {CVE-2026-90434}
• HID: roccat: bound device-supplied profile index {CVE-2026-93188}
• fat: release buffer head after rebuilding parent {CVE-2026-90318}
• wifi: mac80211: ibss: wait for in-flight TX on disconnect {CVE-2026-93804}
• wifi: rtlwifi: pci: fix error path in rtl_pci_probe() {CVE-2026-90403}
• serial: core: clear freed pointers on uart_register_driver() failure {CVE-2026-90336}
• locking/lockdep: Fix NULL pointer dereference in __lock_set_class() {CVE-2026-93261}
• smb: client: reject short READ responses in CIFSSMBRead() {CVE-2026-97565}
• UDF symlink pathComponent header OOB read {CVE-2026-93055}
• ACPI: PCI: Clear driver_data on all paths that free the acpi_pci_root {CVE-2026-92521}
• RDMA/ipoib: Drain RCU callbacks during module teardown {CVE-2026-93108}
• cifs: call pagecache_isize_extended() in cifs_setsize() when extending {CVE-2026-89642}
• nfsd: release path refs on follow_down() error {CVE-2026-89707}
• HID: roccat: free buffered reports when destroying device {CVE-2026-89627}
• NTB: ntb_transport: Reject oversized TX buffers {CVE-2026-80987}
• wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control() {CVE-2026-80949}
• svcrdma: Reject connection when transport allocation fails {CVE-2026-89531}
• xfrm: fix xfrm_state_construct() auth-trunc leak {CVE-2026-80843}
• sctp: reject stale cookies with mismatched verification tags {CVE-2026-80890}
• SUNRPC: Don't leak netobj memory when gss_read_proxy_verf() fails {CVE-2022-50821}
• ipv6/sit: use DEV_STATS_INC() to avoid data-races {CVE-2022-50764}
• mtd: Fix device name leak when register device failed in add_mtd_device() {CVE-2022-50566}
• virtio_console: eliminate anonymous module_init & module_exit {CVE-2022-49100}
• mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) {CVE-2022-49077}
• lockd: fix NULL dereference on lockowner allocation failure {CVE-2026-89484}
• mfd: sm501: Fix potential memory leaks during remove {CVE-2026-80974}
• wifi: iwlwifi: dvm: fix memory leak in iwl_op_mode_dvm_start() {CVE-2026-80948}
• acct: fix potential integer overflow in encode_comp_t() {CVE-2022-50749}
• media: dvb-frontends: fix leak of memory fw {CVE-2022-50664}
• usb: core: Add lock to usb_wakeup_notification() {CVE-2026-80830}
• rndis_host: add overflow check in rndis_rx_fixup() {CVE-2026-80814}
• udf: reject VAT indexes equal to the entry count {CVE-2026-89525}
• lib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen() {CVE-2026-89726}
• ceph: bound xattr value length in __build_xattrs() {CVE-2026-89649}
• bnx2x: fix double free in bnx2x_init_firmware() error path {CVE-2026-89582}
• SUNRPC: xdr_buf_trim: clamp buf->len to avoid underflow {CVE-2026-89551}
• sctp: stop processing a packet once its association is deleted {CVE-2026-89479}
• ALSA: aloop: Check card index…

• can: esd_usb: kill anchored URBs before freeing netdevs {CVE-2026-64585}
• ext4: fix kernel BUG in ext4_write_inline_data_end {CVE-2026-74308}
• netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop {CVE-2026-72348}
• xfrm6: clear dst.dev on error to avoid double netdev_put in xfrm6_fill_dst() {CVE-2026-64580}
• platform/x86: dell-laptop: fix missing cleanups in init error path {CVE-2026-72144}
• ALSA: seq: Clear variable event pointer on read {CVE-2026-74339}
• netfilter: xt_cluster: reject template conntracks in hash match {CVE-2026-72256}
• net/sched: cls_flow: Dont expose folded kernel pointers {CVE-2026-74290}
• mfd: sm501: Fix reference leak on failed device registration {CVE-2026-72240}
• net: atm: reject out-of-range traffic classes in QoS validation {CVE-2026-72297}
• ALSA: caiaq: fix out-of-bounds read in the Traktor Kontrol S4 input parser {CVE-2026-64487}
• scsi: fcoe: Reject FIP descriptors with zero fip_dlen in CVL walker {CVE-2026-63890}
• net/sched: fix pedit partial COW leading to page cache corruption {CVE-2026-46331}
• RDMA/cxgb4: free STAG index when TPT entry write fails {CVE-2026-90415}
• isofs: release zisofs block pointer buffer head {CVE-2026-90434}
• HID: roccat: bound device-supplied profile index {CVE-2026-93188}
• fat: release buffer head after rebuilding parent {CVE-2026-90318}
• wifi: mac80211: ibss: wait for in-flight TX on disconnect {CVE-2026-93804}
• wifi: rtlwifi: pci: fix error path in rtl_pci_probe() {CVE-2026-90403}
• serial: core: clear freed pointers on uart_register_driver() failure {CVE-2026-90336}
• locking/lockdep: Fix NULL pointer dereference in __lock_set_class() {CVE-2026-93261}
• smb: client: reject short READ responses in CIFSSMBRead() {CVE-2026-97565}
• UDF symlink pathComponent header OOB read {CVE-2026-93055}
• ACPI: PCI: Clear driver_data on all paths that free the acpi_pci_root {CVE-2026-92521}
• RDMA/ipoib: Drain RCU callbacks during module teardown {CVE-2026-93108}
• cifs: call pagecache_isize_extended() in cifs_setsize() when extending {CVE-2026-89642}
• nfsd: release path refs on follow_down() error {CVE-2026-89707}
• HID: roccat: free buffered reports when destroying device {CVE-2026-89627}
• NTB: ntb_transport: Reject oversized TX buffers {CVE-2026-80987}
• wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control() {CVE-2026-80949}
• svcrdma: Reject connection when transport allocation fails {CVE-2026-89531}
• xfrm: fix xfrm_state_construct() auth-trunc leak {CVE-2026-80843}
• sctp: reject stale cookies with mismatched verification tags {CVE-2026-80890}
• SUNRPC: Don't leak netobj memory when gss_read_proxy_verf() fails {CVE-2022-50821}
• ipv6/sit: use DEV_STATS_INC() to avoid data-races {CVE-2022-50764}
• mtd: Fix device name leak when register device failed in add_mtd_device() {CVE-2022-50566}
• virtio_console: eliminate anonymous module_init & module_exit {CVE-2022-49100}
• mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) {CVE-2022-49077}
• lockd: fix NULL dereference on lockowner allocation failure {CVE-2026-89484}
• mfd: sm501: Fix potential memory leaks during remove {CVE-2026-80974}
• wifi: iwlwifi: dvm: fix memory leak in iwl_op_mode_dvm_start() {CVE-2026-80948}
• acct: fix potential integer overflow in encode_comp_t() {CVE-2022-50749}
• media: dvb-frontends: fix leak of memory fw {CVE-2022-50664}
• usb: core: Add lock to usb_wakeup_notification() {CVE-2026-80830}
• rndis_host: add overflow check in rndis_rx_fixup() {CVE-2026-80814}
• udf: reject VAT indexes equal to the entry count {CVE-2026-89525}
• lib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen() {CVE-2026-89726}
• ceph: bound xattr value length in __build_xattrs() {CVE-2026-89649}
• bnx2x: fix double free in bnx2x_init_firmware() error path {CVE-2026-89582}
• SUNRPC: xdr_buf_trim: clamp buf->len to avoid underflow {CVE-2026-89551}
• sctp: stop processing a packet once its association is deleted {CVE-2026-89479}
• ALSA: aloop: Check card index…

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

wifi: mac80211: ibss: wait for in-flight TX on disconnect

While leaving an IBSS in ieee80211_ibss_disconnect() mac80211 flushes stations, turns the carrier off and immediately tells the driver to leave as well. While there may be synchronize_net() in station flush and in this code later, packets can still be transmitted due to cross-CPU race conditions after carrier off is set. Therefore, it's possible for a race to happen where a TX to the driver occurs while or after telling it to leave the IBSS. This can be confusing to drivers, and in the case of iwlwifi leads to an attempt to use invalid queues.

Move netif_carrier_off() to occur before sta_info_flush() during IBSS disconnect, and add synchronize_net() if flushing didn't, so that the synchronize_net() always happens between turning the carrier off and telling the driver, avoiding this race.

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: ibss: wait for in-flight TX on disconnect While leaving an IBSS in ieee80211_ibss_disconnect() mac80211 flushes stations, turns the carrier off and immediately tells the driver to leave as well. While there may be synchronize_net() in station flush and in this code later, packets can still be transmitted due to cross-CPU race conditions after carrier off is set. Therefore, it's possible for a race to happen where a TX to the driver occurs while or after telling it to leave the IBSS. This can be confusing to drivers, and in the case of iwlwifi leads to an attempt to use invalid queues. Move netif_carrier_off() to occur before sta_info_flush() during IBSS disconnect, and add synchronize_net() if flushing didn't, so that the synchronize_net() always happens between turning the carrier off and telling the driver, avoiding this race.

The SUSE Linux Enterprise 15 SP7 kernel was updated to fix various security issues:

The following security issues were fixed:

• CVE-2025-68219: cifs: fix memory leak in smb3_fs_context_parse_param error path (bsc#1255222).
• CVE-2026-31708: smb: client: fix OOB read in smb2_ioctl_query_info QUERY_INFO path (bsc#1264022).
• CVE-2026-31709: smb: client: validate the whole DACL before rewriting it in cifsacl (bsc#1264024).
• CVE-2026-43350: smb: client: require a full NFS mode SID before reading mode bits (bsc#1264985).
• CVE-2026-46155: smb/client: fix out-of-bounds read in smb2_compound_op() (bsc#1267720).
• CVE-2026-64370: posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path (bsc#1273805).
• CVE-2026-64380: smb: client: harden POSIX SID length parsing (bsc#1273557).
• CVE-2026-64430: NTB: epf: Avoid calling pci_irq_vector() from hardirq context (bsc#1274257).
• CVE-2026-64435: audit: Fix data races of skb_queue_len() readers on audit_queue (bsc#1274080).
• CVE-2026-68186: binfmt_misc: set have_execfd only once the interpreter is opened (bsc#1274949).
• CVE-2026-68436: drm/amd/display: use kvzalloc to allocate struct dc (bsc#1276275).
• CVE-2026-68447: drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size (bsc#1276280).
• CVE-2026-68460: f2fs: fix potential deadlock in f2fs_balance_fs() (bsc#1276774).
• CVE-2026-72010: cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed (bsc#1276776).
• CVE-2026-72073: mmc: vub300: fix use-after-free on probe failure (bsc#1277157).
• CVE-2026-72110: bpf,fork: wipe ->bpf_storage before bailouts that access it (bsc#1277357).
• CVE-2026-72111: bpf: Reset register bounds before narrowing retval range in check_mem_access() (bsc#1277389).
• CVE-2026-72250: netfilter: nf_conntrack_reasm: guard mac_header adjustment after IPv6 defrag (bsc#1277663).
• CVE-2026-72253: netfilter: nf_conntrack_sip: validate skb_dst() before accessing it (bsc#1277665).
• CVE-2026-72318: cifs: validate DFS referral string offsets (bsc#1275939).
• CVE-2026-72405: net: udp_tunnel: prevent double queueing in udp_tunnel_nic_device_sync (bsc#1278033).
• CVE-2026-72416: netfilter: nft_compat: ebtables emulation must reject non-bridge targets (bsc#1278041).
• CVE-2026-72428: bpf: Fix stack slot index in nospec checks (bsc#1278050).
• CVE-2026-74368: wifi: ath12k: fix memory leak in ath12k_wifi7_dp_rx_h_verify_tkip_mic() (bsc#1277103).
• CVE-2026-74472: ublk: reset kernel-owned dev_info fields in ublk_ctrl_add_dev() (bsc#1277785).
• CVE-2026-74613: vsock/virtio: avoid refilling the RX queue after teardown (bsc#1277903).
• CVE-2026-74620: net/sched: act_gact, act_police: range check the fallback control action (bsc#1277044).
• CVE-2026-74624: netfilter: nf_conntrack: defer invalid log until after unlock (bsc#1277599).
• CVE-2026-74715: net: netfilter: Make ct zone opts configurable for bpf ct helpers (bsc#1277890).
• CVE-2026-74746: netfilter: flowtable: publish GC-visible tuple last (bsc#1278101).
• CVE-2026-74748: netfilter: ipset: fix refcount race between list:set GC and swap (bsc#1277578).
• CVE-2026-80572: Input: byd - synchronize timer deletion before freeing private data (bsc#1277338).
• CVE-2026-80602: perf/x86/amd/lbr: Fix kernel address leakage (bsc#1278123).
• CVE-2026-80637: netfilter: synproxy: fix unaligned memory access in timestamp adjustment (bsc#1278343).
• CVE-2026-80717: sctp: validate Adaptation Indication parameter length (bsc#1277836).
• CVE-2026-80755: selinux: reject a permission value exceeding the class permission count (bsc#1278415).
• CVE-2026-80757: selinux: reject a class permission count below its inherited common (bsc#1278711).
• CVE-2026-80808: ext4: stop retrying saturated xattr cache entries (bsc#1279795).
• CVE-2026-80809: ocfs2: fix missing metadata reservation for large xattrs (bsc#1279606).
• CVE-2026-80855: fuse: fix invalidate lock leak on open O_TRUNC DAX failure (bsc#1279564).
• CVE-2026-80879: ocfs2: fix circular locking dependency…

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…