ELSA-2026-500247

Опубликовано: 04 сент. 2026

Источник: oracle-oval

Платформа: Oracle Linux 8

Платформа: Oracle Linux 7

Описание

ELSA-2026-500247: Unbreakable Enterprise kernel security update (IMPORTANT)

[5.4.17-2136.359.3.1]

inet: frags: strip GSO state from fragments before reassembly (Xinyang Ge) [Orabug: 39974845] {CVE-2026-80590}

[5.4.17-2136.359.3]

Partial revert of 'x86/alternatives: Optimize optimize_nops()' (Harshit Mogalapalli) [Orabug: 39866546]
Revert 'x86/alternatives: Add alt_instr.flags' (Harshit Mogalapalli) [Orabug: 39866546]
x86/bugs: Make Safe-RET robust against interrupt injection (Borislav Petkov (AMD)) [Orabug: 39784513] {CVE-2026-68480}
x86/alternatives: Disable interrupts and sync when optimizing NOPs in place (Thomas Gleixner) [Orabug: 39784513]
x86/alternative: Support relocations in alternatives (Peter Zijlstra) [Orabug: 39784513]
x86/alternative: Make debug-alternative selective (Peter Zijlstra) [Orabug: 39784513]
x86/alternatives: Add alt_instr.flags (Borislav Petkov (AMD)) [Orabug: 39784513]
x86/asm: Provide ALTERNATIVE_3 (Peter Zijlstra) [Orabug: 39784513]
x86/alternative: Optimize single-byte NOPs at an arbitrary position (Borislav Petkov) [Orabug: 39784513]
x86/alternative: Align insn bytes vertically (Borislav Petkov) [Orabug: 39784513] (H. Peter Anvin (Intel)) [Orabug: 39784513]
x86/alternatives: Optimize optimize_nops() (Peter Zijlstra) [Orabug: 39784513]
x86: Add insn_decode_kernel() (Peter Zijlstra) [Orabug: 39784513]
x86/insn: Add an insn_decode() API (Borislav Petkov) [Orabug: 39784513]
x86/alternative: Use ALTERNATIVE_TERNARY() in _static_cpu_has() (Juergen Gross) [Orabug: 39784513]
x86/alternative: Support ALTERNATIVE_TERNARY (Juergen Gross) [Orabug: 39784513]
x86/alternative: Merge include files (Juergen Gross) [Orabug: 39784513]
x86/alternative: Drop unused feature parameter from ALTINSTR_REPLACEMENT() (Juergen Gross) [Orabug: 39784513]
x86/insn: Support big endian cross-compiles (Martin Schwidefsky) [Orabug: 39784513]
x86/tools: Use tools headers for instruction decoder selftests (Vasily Gorbik) [Orabug: 39784513]
tools headers: Get tools's linux/compiler.h closer to the kernel's (Arnaldo Carvalho de Melo) [Orabug: 39784513]
perf build: Allow nested externs to enable BUILD_BUG() usage (Vasily Gorbik) [Orabug: 39784513]
objtool: Allow nested externs to enable BUILD_BUG() (Vasily Gorbik) [Orabug: 39784513]
objtool: Make relocation in alternative handling arch dependent (Julien Thierry) [Orabug: 39784513]
x86/alternatives: Add pr_fmt() to debug macros (Borislav Petkov) [Orabug: 39784513]
tools headers: Adopt verbatim copy of compiletime_assert() from kernel sources (Arnaldo Carvalho de Melo) [Orabug: 39784513]
x86/alternatives: Teach text_poke_bp() to emulate instructions (Peter Zijlstra) [Orabug: 39784513]
tools headers: Synchronize linux/bits.h with the kernel sources (Arnaldo Carvalho de Melo) [Orabug: 39784513]
net/rds: restrict RDS_INFO dumps to caller netns (Praveen Kumar Kannoju) [Orabug: 39681637]

[5.4.17-2136.359.2]

net: tap: set skb->dev before parsing virtio net header in tap_get_user_xdp() (Dongli Zhang) [Orabug: 39558751]
rds: tcp: fix uninit-value in __inet_bind (Tabrez Ahmed) [Orabug: 39668203]
rds: tcp: cleanup if kmem_cache_alloc fails in rds_tcp_conn_alloc() (Sowmini Varadhan) [Orabug: 39668203]
net/rds: harden rds_rm_size (Manjunath Patil) [Orabug: 39812534]
rds: ib: move gc_count reset before free_percpu (Manjunath Patil) [Orabug: 39818510]
rds: fix lfstack_pop_all sequence reset (Manjunath Patil) [Orabug: 39818510]

[5.4.17-2136.359.1]

KVM: arm64: Make nVHE ASLR conditional on RANDOMIZE_BASE (David Brazdil) [Orabug: 39374251]
arm64: kvm: Fix IDMAP overlap with HYP VA (Russell King) [Orabug: 39374251]
arm64: KVM: Invoke compute_layout() before alternatives are applied (Sebastian Andrzej Siewior) [Orabug: 39374251]
ocfs2: fix possible deadlock between unlink and dio_end_io_write (Joseph Qi) [Orabug: 39273589] {CVE-2026-31598}
fs/ocfs2: fix comments mentioning i_mutex (hongnanli) [Orabug: 39273589]
xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (Michal Kosiorek) [Orabug: 39460235] {CVE-2026-46116}
net/rds: zero per-item info buffer before handing it to visitors (Michael Bommarito) [Orabug: 39638198] {CVE-2026-52995}
uek: kabi: update x86_64 kABI files for a new symbol (Saeed Mirzamohammadi) [Orabug: 39651636]
IB/rxe: use rxe_drop_ref to release rxe_pd (Wengang Wang) [Orabug: 39674348]
IB/uverbs: enhance authorization checks for ib_uverbs_share_pd() (Wengang Wang) [Orabug: 39674348]
fs/binfmt_elf: validate reserved VA ELF notes (Jianfeng Wang) [Orabug: 39681044]
mm: preserve page-table boundaries for reserved VA mappings (Jianfeng Wang) [Orabug: 39681044]
mm: enforce max_map_count for reserved VA mappings (Jianfeng Wang) [Orabug: 39681044]
xen/ovmapi: terminate values passed to xenbus_write (Joe Jin) [Orabug: 39726701]
xen/ovmapi: free queued events on release (Joe Jin) [Orabug: 39726701]
xen/ovmapi: prevent duplicate app registration (Joe Jin) [Orabug: 39726701]
xen/ovmapi: avoid raw user pointer access in get_next_event (Joe Jin) [Orabug: 39726701]
xen/ovmapi: reject oversized posted event payloads (Joe Jin) [Orabug: 39726701]
rds: Prevent kernel-infoleak in rds_notify_queue_get() (Peilin Ye) [Orabug: 39772651]
rds: do not leak kernel memory to user land (Eric Dumazet) [Orabug: 39772651]

[5.4.17-2136.358.2]

xfs: resample the data fork mapping after cycling ILOCK (Darrick J. Wong) [Orabug: 39776792] {CVE-2026-64600}
net: Work around Marvell NIC TX stalls (Venkat Venkatsubra) [Orabug: 39765820]

[5.4.17-2136.358.1]

KVM: x86: Fix shadow paging use-after-free due to unexpected role (Paolo Bonzini) [Orabug: 39673871] {CVE-2026-53359}
KVM: x86: Fix shadow paging use-after-free due to unexpected GFN (Sean Christopherson) [Orabug: 39673871] {CVE-2026-46113}
KVM: x86/MMU: Recursively zap nested TDP SPs when zapping last/only parent (Ben Gardon) [Orabug: 39673871]
KVM: x86/mmu: Move flush logic from mmu_page_zap_pte() to FNAME(invlpg) (Sean Christopherson) [Orabug: 39673871]
KVM: x86/mmu: pull call to drop_large_spte() into __link_shadow_page() (Paolo Bonzini) [Orabug: 39673871]
KVM: x86/mmu: Passing up the error state of mmu_alloc_shadow_roots() (Like Xu) [Orabug: 39673871]
KVM: MMU: load PDPTRs outside mmu_lock (Paolo Bonzini) [Orabug: 39673871]
KVM: x86/mmu: Check PDPTRs before allocating PAE roots (Sean Christopherson) [Orabug: 39673871]
KVM: x86/mmu: Always pass 0 for @quadrant when gptes are 8 bytes (David Matlack) [Orabug: 39673871]
KVM: x86/mmu: Derive shadow MMU page role from parent (David Matlack) [Orabug: 39673871]
KVM: X86: Remove useless code to set role.gpte_is_8_bytes when role.direct (Lai Jiangshan) [Orabug: 39673871]
KVM: X86: Synchronize the shadow pagetable before link it (Lai Jiangshan) [Orabug: 39673871]
KVM: X86: Fix missed remote tlb flush in rmap_write_protect() (Lai Jiangshan) [Orabug: 39673871]
KVM: x86/mmu: Refactor shadow walk in __direct_map() to reduce indentation (Sean Christopherson) [Orabug: 39673871]
KVM: x86/mmu: Stop passing 'direct' to mmu_alloc_root() (David Matlack) [Orabug: 39673871]
KVM: x86/mmu: Use a bool for direct (David Matlack) [Orabug: 39673871]
kvm: mmu: Replace unsigned with unsigned int for PTE access (Ben Gardon) [Orabug: 39673871]
KVM: x86/mmu: Ensure MMU pages are available when allocating roots (Sean Christopherson) [Orabug: 39673871]
KVM: x86/mmu: Allocate pae_root and lm_root pages in dedicated helper (Sean Christopherson) [Orabug: 39673871]
KVM: x86/mmu: Allocate the lm_root before allocating PAE roots (Sean Christopherson) [Orabug: 39673871]
KVM: x86/mmu: Capture 'mmu' in a local variable when allocating roots (Sean Christopherson) [Orabug: 39673871]
KVM: x86/mmu: Alloc page for PDPTEs when shadowing 32-bit NPT with 64-bit (Sean Christopherson) [Orabug: 39673871]
KVM: x86/mmu: Stash 'kvm' in a local variable in kvm_mmu_free_roots() (Sean Christopherson) [Orabug: 39673871]
KVM: x86/mmu: Add a helper to consolidate root sp allocation (Sean Christopherson) [Orabug: 39673871]
Revert 'net/rds: poll eq during user-reset' (Praveen Kumar Kannoju) [Orabug: 39659401]
net/sched: act_pedit: fix action bind logic (Pedro Tammela) [Orabug: 39567287]
net/sched: act_pedit: free pedit keys on bail from offset check (Pedro Tammela) [Orabug: 39567287]
net/sched: fix pedit partial COW leading to page cache corruption (Rajat Gupta) [Orabug: 39567287] {CVE-2026-46331}
net/sched: act_pedit: Parse L3 Header for L4 offset (Max Tottenham) [Orabug: 39567287]
net/sched: act_pedit: rate limit datapath messages (Pedro Tammela) [Orabug: 39567287]
net/sched: act_pedit: check static offsets a priori (Pedro Tammela) [Orabug: 39567287]
net/sched: act_pedit: remove extra check for key type (Pedro Tammela) [Orabug: 39567287]
net/sched: simplify tcf_pedit_act (Pedro Tammela) [Orabug: 39567287]
net/sched: transition act_pedit to rcu and percpu stats (Pedro Tammela) [Orabug: 39567287]
net/sched: act_pedit: use NLA_POLICY for parsing 'ex' keys (Pedro Tammela) [Orabug: 39567287]
RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (hkbinbin) [Orabug: 39452261] {CVE-2026-46043}
locking/rtmutex: Skip remove_waiter() when waiter is not enqueued (Davidlohr Bueso) [Orabug: 39426001] {CVE-2026-53163}
rtmutex: Use waiter::task instead of current in remove_waiter() (Keenan Dong) [Orabug: 39426001] {CVE-2026-43499}
ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (Eric Dumazet) [Orabug: 39300930] {CVE-2026-43038}
tracing/events: Expand global buffer for in-kernel event enables (Manjunath Patil) [Orabug: 38790406]
net/mlx5: poll mlx5 eq during irq migration (Praveen Kumar Kannoju) [Orabug: 38776184]

[5.4.17-2136.357.3]

net: skbuff: fix missing zerocopy reference in pskb_carve helpers (Minh Nguyen) [Orabug: 39619389] {CVE-2026-52943}

[5.4.17-2136.357.2]

net: fix fanout UAF in packet_release() via NETDEV_UP race (Yochai Eisenrich) [Orabug: 39250953] {CVE-2026-31504}
x86/kaslr: Recognize all ZONE_DEVICE users as physaddr consumers (Dan Williams) [Orabug: 39429802]
x86/kaslr: Reduce KASLR entropy on most x86 systems (Balbir Singh) [Orabug: 39429802]
net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null (Cezar Bulinaru) [Orabug: 39526882] {CVE-2022-50073}
arm64: errata: Mitigate TLBI errata on various Arm CPUs (Mark Rutland) [Orabug: 39548666] {CVE-2025-10263} {CVE-2026-53354}
arm64: tlb: Add ARM64_WORKAROUND_REPEAT_TLBI_SYNC (Mark Rutland) [Orabug: 39548666]
ARM: uek: Disable CONFIG_QCOM_FALKOR_ERRATUM_1003 (Boris Ostrovsky) [Orabug: 39548666]
arm64: tlb: allow XZR argument to TLBI ops (Mark Rutland) [Orabug: 39548666]
arm64: cputype: Add C1-Premium definitions (Mark Rutland) [Orabug: 39548666]
arm64: cputype: Add C1-Ultra definitions (Mark Rutland) [Orabug: 39548666]
ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (Eric Dumazet) [Orabug: 39300926] {CVE-2026-43037}

[5.4.17-2136.357.1]

batman-adv: hold claim backbone gateways by reference (Haoze Xie) [Orabug: 39262375] {CVE-2026-31657}
scsi: fcoe: Reject FIP descriptors with zero fip_dlen in CVL walker (Michael Bommarito) [Orabug: 39446045] {CVE-2026-63890}
scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (Michael Bommarito) [Orabug: 39446045] {CVE-2026-63888}
scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf (Michael Bommarito) [Orabug: 39446045] {CVE-2026-63887}
rds: Drop rds conn in connect worker if not in down state. (Rohit Nair) [Orabug: 39152239]

[5.4.17-2136.356.4.1]

smb: client: reject userspace cifs.spnego descriptions (Asim Viladi Oglu Manizada) [Orabug: 39463669] {CVE-2026-46243}

Обновленные пакеты

Oracle Linux 8

Oracle Linux aarch64

kernel-uek

5.4.17-2136.359.3.1.el8uek

kernel-uek-debug

5.4.17-2136.359.3.1.el8uek

kernel-uek-debug-devel

5.4.17-2136.359.3.1.el8uek

kernel-uek-devel

5.4.17-2136.359.3.1.el8uek

kernel-uek-doc

5.4.17-2136.359.3.1.el8uek

Oracle Linux x86_64

kernel-uek

5.4.17-2136.359.3.1.el8uek

kernel-uek-container

5.4.17-2136.359.3.1.el8uek

kernel-uek-container-debug

5.4.17-2136.359.3.1.el8uek

kernel-uek-debug

5.4.17-2136.359.3.1.el8uek

kernel-uek-debug-devel

5.4.17-2136.359.3.1.el8uek

kernel-uek-devel

5.4.17-2136.359.3.1.el8uek

kernel-uek-doc

5.4.17-2136.359.3.1.el8uek

Oracle Linux 7

Oracle Linux x86_64

kernel-uek

5.4.17-2136.359.3.1.el7uek

kernel-uek-container

5.4.17-2136.359.3.1.el7uek

kernel-uek-container-debug

5.4.17-2136.359.3.1.el7uek

kernel-uek-debug

5.4.17-2136.359.3.1.el7uek

kernel-uek-debug-devel

5.4.17-2136.359.3.1.el7uek

kernel-uek-devel

5.4.17-2136.359.3.1.el7uek

kernel-uek-doc

5.4.17-2136.359.3.1.el7uek

kernel-uek-tools

5.4.17-2136.359.3.1.el7uek

Связанные CVE

CVE-2026-80590

Ссылки на источники

Связанные уязвимости

CVE-2026-80590

CVSS3: 8.6

ubuntu

13 дней назад

In the Linux kernel, the following vulnerability has been resolved: inet: frags: strip GSO state from fragments before reassembly A virtio_net_hdr (tun/tap, or AF_PACKET with PACKET_VNET_HDR) can mark an IPv4 or IPv6 fragment as GSO; nothing relates gso_type to frag_off. inet_frag_reasm_prepare()/inet_frag_reasm_finish() keep the first fragment's skb as the head of the reassembled datagram, including its shinfo->gso_size/gso_type/gso_segs, and chain the remaining fragments on frag_list with whatever linear/paged layout they arrived with. After ip_defrag() (ip_local_deliver(), nf_defrag_ipv4, ...) the reassembled skb therefore still claims to be GSO (SKB_GSO_DODGY), and the next software segmentation point - udp_rcv_segment() on local delivery, validate_xmit_skb(), or the ip_finish_output_gso() slow path - hands it to skb_segment(). skb_segment()'s frag_list walk assumes GRO-shaped input and hits one of its BUG_ON()s. Two writes to a tap by an unprivileged user in its own userns are ...