Threats Tagged 'cve-2026-64386'

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: ipv6: add NULL checks for idev in SRv6 paths (CVE-2026-23442) * kernel: RDMA/rxe: Fix race condition in QP timer handlers (CVE-2026-45910) * kernel: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (CVE-2026-46043) * kernel: RDMA/rxe: Reject unknown opcodes before ICRC processing (CVE-2026-46133) * kernel: RDMA/rxe: Reject non-8-byte ATOMIC_WRITE payloads (CVE-2026-46114) * kernel: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() (CVE-2026-63924) * kernel: ipv6: exthdrs: refresh nh after handling HAO option (CVE-2026-63922) * kernel: ipv6: validate extension header length before copying to cmsg (CVE-2026-63920) * kernel: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() (CVE-2026-63984) * kernel: Kernel SMB client: Double-free vulnerability allows remote denial of service or privilege escalation (CVE-2026-64385) * kernel: smb: client: fix double-free in SMB2_flush() replay (CVE-2026-64383) * kernel: smb: client: fix query_info() replay double-free (CVE-2026-64386) * kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap (CVE-2026-64582) * kernel: ipv6: fix use-after-free in ip6_finish_output2() (CVE-2026-80792) * kernel: RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp (CVE-2026-80864) * kernel: RDMA/rxe: Fix OOB in free_rd_atomic_resources() (CVE-2026-80863) Bug Fix(es) and Enhancement(s): * gfs2: Remote delete issues [rhel-9.6.z] (JIRA:RHEL-172430) 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.

This security update provides a functional equivalent of RHSA-2026:45114. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:45114.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CVE-2026-43233) * kernel: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CVE-2026-43206) * kernel: drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4 (CVE-2026-43237) * kernel: udf: fix partition descriptor append bookkeeping (CVE-2026-45991) * kernel: drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 (CVE-2026-45878) * kernel: ip6_gre: Use cached t->net in ip6erspan_changelink() (CVE-2026-46120) * kernel: sched/psi: fix race between file release and pressure write (CVE-2026-52991) * kernel: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 (CVE-2026-53143) * kernel: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CVE-2026-53136) * kernel: mm/huge_memory: update file PMD counter before folio_put() (CVE-2026-53189) * kernel: drm/amd/display: Use krealloc_array() in dal_vector_reserve() (CVE-2026-53329) * kernel: drm/i915/gem: Fix phys BO pread/pwrite with offset (CVE-2026-53356) * kernel: drm/amdgpu: zero-initialize GART table on allocation (CVE-2026-53374) * kernel: drm/i915: Fix potential UAF in TTM object purge (CVE-2026-63884) * kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007) * kernel: memfd: deny writeable mappings when implying SEAL_WRITE (CVE-2026-63952) * kernel: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (CVE-2026-63888) * kernel: drm/amdgpu: fix amdgpu_hmm_range_get_pages (CVE-2026-63879) * kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot (CVE-2026-64048) * kernel: drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async (CVE-2026-64219) * kernel: smb: client: fix double-free in SMB2_open() replay (CVE-2026-64382) * kernel: smb: client: mask server-provided mode to 07777 in modefromsid (CVE-2026-64379) * kernel: smb: client: fix query_info() replay double-free (CVE-2026-64386) * kernel: posix-cpu-timers: Prevent UAF caused by non-leader exec() race (CVE-2026-64560) * kernel: smb: client: validate DFS referral PathConsumed (CVE-2026-68343) * kernel: smb/client: handle overlapping allocated ranges in fallocate (CVE-2026-68388) Bug Fix(es) and Enhancement(s): * kernel 5.14.0-687.5.1.el9_8 breaks wifi when using FIPS (JIRA:RHEL-181065) * vhost: reset the vring metadata cache on vring reconfiguration [rhel-9.8.z] (JIRA:RHEL-224549) * cifs: smb1 directory listings from xp server returning EINVAL and EIO [rhel-9.8.z] (JIRA:RHEL-235811) 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: smb: client: fix query_info() replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_info_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.