ELBA-2026-500172

ELBA-2026-500172 - Unbreakable Enterprise kernel bug fix update

Type:	BUG
Impact:	NA
Release Date:	2026-08-13

Description

[5.4.17-2136.358.2.2]
- net/rds: restrict RDS_INFO dumps to caller netns (Praveen Kumar Kannoju) [Orabug: 39870267]
- net/rds: harden rds_rm_size (Manjunath Patil) [Orabug: 39870266]
- net/rds: zero per-item info buffer before handing it to visitors (Michael Bommarito) [Orabug: 39870263]
- rds: Prevent kernel-infoleak in rds_notify_queue_get() (Peilin Ye) [Orabug: 39870261]
- rds: do not leak kernel memory to user land (Eric Dumazet) [Orabug: 39870261]
- rds: tcp: fix uninit-value in __inet_bind (Tabrez Ahmed) [Orabug: 39870260]
- rds: tcp: cleanup if kmem_cache_alloc fails in rds_tcp_conn_alloc() (Sowmini Varadhan) [Orabug: 39870260]
- rds: ib: move gc_count reset before free_percpu (Manjunath Patil) [Orabug: 39870258]
- rds: fix lfstack_pop_all sequence reset (Manjunath Patil) [Orabug: 39870258]
- IB/rxe: use rxe_drop_ref to release rxe_pd (Wengang Wang) [Orabug: 39870256]
- IB/uverbs: enhance authorization checks for ib_uverbs_share_pd() (Wengang Wang) [Orabug: 39870256]

[5.4.17-2136.358.2.1]
- Partial revert of 'x86/alternatives: Optimize optimize_nops()' (Harshit Mogalapalli) [Orabug: 39855738]
- Revert 'x86/alternatives: Add alt_instr.flags' (Harshit Mogalapalli) [Orabug: 39855738]

[5.4.17-2136.358.2.0.1]
- x86/bugs: Make Safe-RET robust against interrupt injection (Borislav Petkov (AMD)) [Orabug: 39832992] {CVE-2026-68480}
- x86/alternatives: Disable interrupts and sync when optimizing NOPs in place (Thomas Gleixner) [Orabug: 39832992]
- x86/alternative: Support relocations in alternatives (Peter Zijlstra) [Orabug: 39832992]
- x86/alternative: Make debug-alternative selective (Peter Zijlstra) [Orabug: 39832992]
- x86/alternatives: Add alt_instr.flags (Borislav Petkov (AMD)) [Orabug: 39832992]
- x86/asm: Provide ALTERNATIVE_3 (Peter Zijlstra) [Orabug: 39832992]
- x86/alternative: Optimize single-byte NOPs at an arbitrary position (Borislav Petkov) [Orabug: 39832992]
- x86/alternative: Align insn bytes vertically (Borislav Petkov) [Orabug: 39832992]
(H. Peter Anvin (Intel)) [Orabug: 39832992]
- x86/alternatives: Optimize optimize_nops() (Peter Zijlstra) [Orabug: 39832992]
- x86: Add insn_decode_kernel() (Peter Zijlstra) [Orabug: 39832992]
- x86/insn: Add an insn_decode() API (Borislav Petkov) [Orabug: 39832992]
- x86/alternative: Use ALTERNATIVE_TERNARY() in _static_cpu_has() (Juergen Gross) [Orabug: 39832992]
- x86/alternative: Support ALTERNATIVE_TERNARY (Juergen Gross) [Orabug: 39832992]
- x86/alternative: Merge include files (Juergen Gross) [Orabug: 39832992]
- x86/alternative: Drop unused feature parameter from ALTINSTR_REPLACEMENT() (Juergen Gross) [Orabug: 39832992]
- x86/insn: Support big endian cross-compiles (Martin Schwidefsky) [Orabug: 39832992]
- x86/tools: Use tools headers for instruction decoder selftests (Vasily Gorbik) [Orabug: 39832992]
- tools headers: Get tools's linux/compiler.h closer to the kernel's (Arnaldo Carvalho de Melo) [Orabug: 39832992]
- perf build: Allow nested externs to enable BUILD_BUG() usage (Vasily Gorbik) [Orabug: 39832992]
- objtool: Allow nested externs to enable BUILD_BUG() (Vasily Gorbik) [Orabug: 39832992]
- objtool: Make relocation in alternative handling arch dependent (Julien Thierry) [Orabug: 39832992]
- x86/alternatives: Add pr_fmt() to debug macros (Borislav Petkov) [Orabug: 39832992]
- tools headers: Adopt verbatim copy of compiletime_assert() from kernel sources (Arnaldo Carvalho de Melo) [Orabug: 39832992]
- x86/alternatives: Teach text_poke_bp() to emulate instructions (Peter Zijlstra) [Orabug: 39832992]
- tools headers: Synchronize linux/bits.h with the kernel sources (Arnaldo Carvalho de Melo) [Orabug: 39832992]
- net: tap: set skb->dev before parsing virtio net header in tap_get_user_xdp() (Dongli Zhang) [Orabug: 39832997]

[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]
- KVM: x86: Fix shadow paging use-after-free due to unexpected GFN (Sean Christopherson) [Orabug: 39673871]
- 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]
- 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}
- 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]
- scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (Michael Bommarito) [Orabug: 39446045]
- scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf (Michael Bommarito) [Orabug: 39446045]
- 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}

[5.4.17-2136.356.4]
- tun: free page on build_skb failure in tun_xdp_one() (Weiming Shi) [Orabug: 39429147]
- tap: free page on error paths in tap_get_user_xdp() (Weiming Shi) [Orabug: 39429147]
- tun: free page on short-frame rejection in tun_xdp_one() (Weiming Shi) [Orabug: 39429147]

Updated Packages

Release/Architecture	Filename	sha256	Superseded By Advisory	Channel Label
Oracle Linux 7 (x86_64)	kernel-uek-5.4.17-2136.358.2.2.el7uek.src.rpm	13823b59e80bcdb9b7cd0f9834c513f59f12b39d0f60e1e5559874626be906d6	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-5.4.17-2136.358.2.2.el7uek.x86_64.rpm	1502221c0973e57e0e07528e8d4fb4fa33e0adf9d587cbf763dfe9be5fdca8b4	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-container-5.4.17-2136.358.2.2.el7uek.x86_64.rpm	b9a7029358cfd1591167ff4b75a3693b32f82eedd23efad9ac50615918721e75	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-container-debug-5.4.17-2136.358.2.2.el7uek.x86_64.rpm	db3d4d7c98df685874ba34289c5e2b0bfce5ab9fe6989b85ea74e940caceb01a	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-debug-5.4.17-2136.358.2.2.el7uek.x86_64.rpm	6d39b5fe2fe9f6d85ef60ecdfe4c4f942087733e428f859cf74f736220065d9d	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-debug-devel-5.4.17-2136.358.2.2.el7uek.x86_64.rpm	52e505bf3805b13479a43381f919293ef432a033e20d717d2f742d29ecd75af1	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-devel-5.4.17-2136.358.2.2.el7uek.x86_64.rpm	e476204c88762a25a6e290fd8dd1feb28e2e2a868d88cea9ffe2bcd49ebf0c45	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-doc-5.4.17-2136.358.2.2.el7uek.noarch.rpm	af074310a9bf834350a8ff1f82e4283d33a980fafbe2196013c15777a8788c50	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-tools-5.4.17-2136.358.2.2.el7uek.x86_64.rpm	90b784fe28a765903bbbf23c1bc6ed2d87e28d2b5e863289427c9c28aa378c82	-	ol7_x86_64_UEKR6_ELS
Oracle Linux 8 (aarch64)	kernel-uek-5.4.17-2136.358.2.2.el8uek.src.rpm	821ed6f2995c96aeaf68b5e1847a70cc3b90ccb3d67d709c282e31a21990c179	-	ol8_aarch64_baseos_latest
	kernel-uek-5.4.17-2136.358.2.2.el8uek.src.rpm	821ed6f2995c96aeaf68b5e1847a70cc3b90ccb3d67d709c282e31a21990c179	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-5.4.17-2136.358.2.2.el8uek.aarch64.rpm	cc5bbb9db398a1ad357f23f0a6400ad853a04252db84936a74c385556363f7d0	-	ol8_aarch64_baseos_latest
	kernel-uek-5.4.17-2136.358.2.2.el8uek.aarch64.rpm	cc5bbb9db398a1ad357f23f0a6400ad853a04252db84936a74c385556363f7d0	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-debug-5.4.17-2136.358.2.2.el8uek.aarch64.rpm	afb1a0d9a29e323a85bcdee9301f48be89b93e52a1922b10df8d9b2eaea95591	-	ol8_aarch64_baseos_latest
	kernel-uek-debug-5.4.17-2136.358.2.2.el8uek.aarch64.rpm	afb1a0d9a29e323a85bcdee9301f48be89b93e52a1922b10df8d9b2eaea95591	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-debug-devel-5.4.17-2136.358.2.2.el8uek.aarch64.rpm	d778b8bac41cd62164a92075771eba7d390fe3b56563fb2898dd5d57473aca41	-	ol8_aarch64_baseos_latest
	kernel-uek-debug-devel-5.4.17-2136.358.2.2.el8uek.aarch64.rpm	d778b8bac41cd62164a92075771eba7d390fe3b56563fb2898dd5d57473aca41	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-devel-5.4.17-2136.358.2.2.el8uek.aarch64.rpm	d818f12751e628a37a7ee69c2f034cc7e4ddff8f23f1769c7102428e51606186	-	ol8_aarch64_baseos_latest
	kernel-uek-devel-5.4.17-2136.358.2.2.el8uek.aarch64.rpm	d818f12751e628a37a7ee69c2f034cc7e4ddff8f23f1769c7102428e51606186	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-doc-5.4.17-2136.358.2.2.el8uek.noarch.rpm	90df14d95400811923d63a92824ed3e736d2cdf5f5471ba62df4924c971fa826	-	ol8_aarch64_baseos_latest
	kernel-uek-doc-5.4.17-2136.358.2.2.el8uek.noarch.rpm	90df14d95400811923d63a92824ed3e736d2cdf5f5471ba62df4924c971fa826	-	ol8_aarch64_u10_baseos_patch
Oracle Linux 8 (x86_64)	kernel-uek-5.4.17-2136.358.2.2.el8uek.src.rpm	821ed6f2995c96aeaf68b5e1847a70cc3b90ccb3d67d709c282e31a21990c179	-	ol8_x86_64_UEKR6
	kernel-uek-5.4.17-2136.358.2.2.el8uek.x86_64.rpm	111c668fe5c80169ab6db0e65ef37a1b29c7a2f5c282a46ac18bbe979105c874	-	ol8_x86_64_UEKR6
	kernel-uek-container-5.4.17-2136.358.2.2.el8uek.x86_64.rpm	7525952f6b84be8c85324a68abb7d8dd2e0ebce015d09d6fec9df8aa583d2c18	-	ol8_x86_64_UEKR6
	kernel-uek-container-debug-5.4.17-2136.358.2.2.el8uek.x86_64.rpm	73acaefcf5299dea9c6b2e2feffe4bbb6020a70e516ad93ba0bcd916be9ccdae	-	ol8_x86_64_UEKR6
	kernel-uek-debug-5.4.17-2136.358.2.2.el8uek.x86_64.rpm	691205a310e56ff1e5c7c32c685911e4433d54df62078fdc13433822e2f33aa2	-	ol8_x86_64_UEKR6
	kernel-uek-debug-devel-5.4.17-2136.358.2.2.el8uek.x86_64.rpm	3a0ffea2b4c61d378ccbb854bb18bfffb700282705a70439bf2daacf85de58a4	-	ol8_x86_64_UEKR6
	kernel-uek-devel-5.4.17-2136.358.2.2.el8uek.x86_64.rpm	4896e9848eb6ca6bdb4cb96f04ec3753416285f0947d628ee568f6fa096c9be8	-	ol8_x86_64_UEKR6
	kernel-uek-doc-5.4.17-2136.358.2.2.el8uek.noarch.rpm	90df14d95400811923d63a92824ed3e736d2cdf5f5471ba62df4924c971fa826	-	ol8_x86_64_UEKR6

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team