Threats Tagged 'cve-2026-68480'

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: smc: Fix use-after-free in __pnet_find_base_ndev() (CVE-2025-40064) * kernel: Linux kernel: Denial of Service due to memory leak in tpm2_load_cmd (CVE-2025-71147) * kernel: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (CVE-2026-45970) * kernel: smb/client: fix out-of-bounds read in symlink_data() (CVE-2026-46185) * kernel: Bluetooth: hci_ldisc: Clear HCI_UART_PROTO_INIT on error (CVE-2026-53073) * kernel: pNFS: Fix use-after-free in pnfs_update_layout() (CVE-2026-63800) * kernel: nfsd: fix posix_acl leak on SETACL decode failure (CVE-2026-53397) * kernel: exfat: fix potential use-after-free in exfat_find_dir_entry() (CVE-2026-63808) * kernel: nfsd: release layout stid on setlease failure (CVE-2026-53399) * kernel: NFSv4/flexfiles: reject zero filehandle version count (CVE-2026-53392) * kernel: KEYS: fix overflow in keyctl_pkey_params_get_2() (CVE-2026-63824) * kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr (CVE-2026-53391) * kernel: scsi: target: iscsi: Validate CHAP_R length before base64 decode (CVE-2026-63886) * kernel: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() (CVE-2026-64002) * kernel: net: mana: validate rx_req_idx to prevent out-of-bounds array access (CVE-2026-64018) * kernel: scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf (CVE-2026-63887) * kernel: smb: client: fix query directory replay double-free (CVE-2026-64387) * kernel: Kernel: Remote out-of-bounds write in RDMA/siw (CVE-2026-64268) * kernel: crypto: qat - fix VF2PF work teardown race in adf_disable_sriov() (CVE-2026-64438) * kernel: crypto: qat - validate RSA CRT component lengths (CVE-2026-64304) * kernel: NFSv4: include MAY_WRITE in open permission mask for O_TRUNC (CVE-2026-64298) * kernel: ALSA: virtio: Validate control metadata from the device (CVE-2026-64490) * kernel: AMD-SN-7061: Safe RET Interrupt Vulnerability (CVE-2026-68480) * kernel: Linux kernel: Arbitrary code execution via userfaultfd shadow stack manipulation (CVE-2026-68166) * kernel: iomap: fix out-of-bounds bitmap_set() with zero-length range (CVE-2026-68145) * kernel: locking/rt: Fix the incorrect RCU protection in rt_spin_unlock() (CVE-2026-72069) * kernel: nvmet-auth: reject short AUTH_RECEIVE buffers (CVE-2026-72130) Bug Fix(es) and Enhancement(s): * [RHEL 9] TPM becomes completely unresponsive and requires a full reboot to clear [rhel-9.8.z] (JIRA:RHEL-213940) * RT scheduler livelock caused by missing backport of 94894c9c477e [rhel-9.8.z] (JIRA:RHEL-240634) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat has released a security advisory addressing multiple vulnerabilities and bugs in the Linux kernel packages for Red Hat Enterprise Linux 8. These include several use-after-free, out-of-bounds access, and other memory corruption issues across various kernel subsystems such as networking, NFS, bonding, and CPU hotplug handling. The update also fixes a safe RET interrupt vulnerability affecting AMD processors. The advisory covers kernel versions from 8.0.0 up to but not including 8.10.0. Systems must be rebooted after applying the update for the fixes to take effect.

This Red Hat Security Advisory addresses multiple vulnerabilities and bugs in the kernel-rt packages, which provide the Real Time Linux Kernel for systems requiring high determinism. The update fixes several security issues including use-after-free vulnerabilities, out-of-bounds writes, and permission mask errors across various kernel subsystems such as s390, smc91x, bonding, zram, pNFS, nfsd, NFSv4, net, RDMA, AMD-SN-7061, and IPv6. The advisory also includes bug fixes and enhancements related to kernel stability. The update is rated as important by Red Hat and requires a system reboot to take effect.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: seccomp: passthrough uretprobe systemcall without filtering (CVE-2025-21834) * kernel: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() (CVE-2026-23003) * kernel: netfilter: nf_tables: Fix for duplicate device in netdev hooks (CVE-2026-43454) * kernel: netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() (CVE-2026-43450) * kernel: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (CVE-2026-45970) * kernel: ip6_gre: Use cached t->net in ip6erspan_changelink() (CVE-2026-46120) * kernel: iommu/amd: Fix clone_alias() to use the original device's devid (CVE-2026-53053) * kernel: NFSD: fix nfs4_file access extra count in nfsd4_add_rdaccess_to_wrdeleg (CVE-2026-53026) * kernel: zram: fix use-after-free in zram_bvec_write_partial() (CVE-2026-53185) * kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196) * kernel: mm/huge_memory: update file PMD counter before folio_put() (CVE-2026-53189) * kernel: mm/list_lru: drain before clearing xarray entry on reparent (CVE-2026-53153) * kernel: pNFS: Fix use-after-free in pnfs_update_layout() (CVE-2026-63800) * kernel: nfsd: fix posix_acl leak on SETACL decode failure (CVE-2026-53397) * kernel: nfsd: release layout stid on setlease failure (CVE-2026-53399) * kernel: NFSv4/flexfiles: reject zero filehandle version count (CVE-2026-53392) * kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr (CVE-2026-53391) * kernel: net: mana: validate rx_req_idx to prevent out-of-bounds array access (CVE-2026-64018) * kernel: smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked() (CVE-2026-64136) * kernel: netfilter: ipset: fix race between dump and ip_set_list resize (CVE-2026-64189) * kernel: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page (CVE-2026-64320) * kernel: crypto: qat - fix VF2PF work teardown race in adf_disable_sriov() (CVE-2026-64438) * kernel: crypto: qat - validate RSA CRT component lengths (CVE-2026-64304) * kernel: NFSv4: include MAY_WRITE in open permission mask for O_TRUNC (CVE-2026-64298) * kernel: ALSA: virtio: Validate control metadata from the device (CVE-2026-64490) * kernel: mm: shrinker: fix shrinker_info teardown race with expansion (CVE-2026-64418) * kernel: smb: client: fix change notify replay double-free (CVE-2026-64384) * kernel: Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count (CVE-2026-64277) * kernel: Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count (CVE-2026-64276) * kernel: AMD-SN-7061: Safe RET Interrupt Vulnerability (CVE-2026-68480) * kernel: mm/khugepaged: write all dirty file folios when collapsing (CVE-2026-68086) * kernel: Linux kernel: Arbitrary code execution via userfaultfd shadow stack manipulation (CVE-2026-68166) * kernel: locking/rt: Fix the incorrect RCU protection in rt_spin_unlock() (CVE-2026-72069) * kernel: nvmet-auth: reject short AUTH_RECEIVE buffers (CVE-2026-72130) Bug Fix(es) and Enhancement(s): * RHEL 10: s390: Revert support for DCACHE_WORD_ACCESS [rhel-10.2.z] (JIRA:RHEL-188180) * qede: build_skb failure causes off-by-one BD ring corruption and kernel panic [rhel-10.2.z] (JIRA:RHEL-193043) * ss core dumped when there is an SCTP session [rhel-10.2.z] (JIRA:RHEL-212393) * [RHEL-10.2.z] Intel CWF: CPU is unable to obtain cstate1 on idle system (JIRA:RHEL-218627) * RHEL10.0 - s390/pfault: Fix virtual vs physical address confusion [rhel-10.2.z] (JIRA:RHEL-222507) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Make Safe-RET robust against interrupt injection An attacker injecting interrupts while the Safe-RET mitigation executes on machines affected by SRSO can neutralize the safe return sequence, potentially leading to data leakage through speculative execution. Fixup register state as if the Safe-RET sequence executed successfully by "emulating" it, in a manner of speaking, and avoid executing a RET instruction after returning from the interrupt.