ELSA-2026-500589

ELSA-2026-500589 - Unbreakable Enterprise kernel security update

Type:	SECURITY
Impact:	IMPORTANT
Release Date:	2026-11-09

Description

[5.4.17-2136.361.4.1]
- iommu/amd: Force device table to maximum size (Suravee Suthikulpanit) [Orabug: 40172712] {CVE-2024-21963}
- x86/microcode/AMD: Increase PATCH_MAX_SIZE for Family 1Ah (Saeed Mirzamohammadi) [Orabug: 40172712]

[5.4.17-2136.361.4]
- vhost-scsi: zero misaligned I/O bounce pages (Shubham Antil) [Orabug: 40193932]

[5.4.17-2136.361.3]
- KVM: x86: Use active memslots for the per-vCPU MMIO cache (Jinu Kim) [Orabug: 40180571]
- drbd: fix 'LOGIC BUG' in drbd_al_begin_io_nonblock() (Lars Ellenberg) [Orabug: 39130967] {CVE-2026-23356}
- rds: cong: fix race while clearing rs_cong_mask (Anand Khoje) [Orabug: 39519861]
- hugetlbfs: hold trunc_rwsem during hugepage migration (Stephen Brennan) [Orabug: 39541934]
- ipv4: validate checksum_start before completing checksum (Michael S. Tsirkin) [Orabug: 40165812] {CVE-2026-99999}
- netfilter: nfnetlink_queue: unbreak SCTP traffic (Antonio Ojea) [Orabug: 40165812]
- net: add inline function skb_csum_is_sctp (Xin Long) [Orabug: 40165812]
- ipv4: free inet_opt and ireq_opt after an RCU grace period (Eric Dumazet) [Orabug: 40165790] {CVE-2026-98432}
- vhost: reset the vring metadata cache on vring reconfiguration (Jun Yang) [Orabug: 39917526] {CVE-2026-74580}

[5.4.17-2136.361.2]
- ionic: serialize hardware timestamp Tx queue access (Joe Dobosenski) [Orabug: 40061822]

[5.4.17-2136.361.1]
- net/mlx5: Set parent device before health polling (Manjunath Patil) [Orabug: 39208695]

[5.4.17-2136.360.3]
- IB/mlx4: delete allocated id_map_entry while sending REJ (Praveen Kumar Kannoju) [Orabug: 39999072]
- net: tun: bound receive headroom (Asim Viladi Oglu Manizada) [Orabug: 40020673] {CVE-2026-81000}
- xfrm: ah6: validate routing header segments_left (Asim Viladi Oglu Manizada) [Orabug: 39982188] {CVE-2026-80844}
- inet: frags: strip GSO state from fragments before reassembly (Xinyang Ge) [Orabug: 39972532] {CVE-2026-80590}
- sctp: prevent peer transport count overflow (Asim Viladi Oglu Manizada) [Orabug: 39886843] {CVE-2026-74469}
- pppoe: reload header pointer after dev_hard_header() (Asim Viladi Oglu Manizada) [Orabug: 39859408] {CVE-2026-68121}

[5.4.17-2136.360.2]
- Revert 'net/mlx5: Add poll-eq API to be used by ULP's' (Praveen Kumar Kannoju) [Orabug: 39764468]

[5.4.17-2136.360.1]
- x86/alternatives: Guard struct alt_instr kABI layout (Saeed Mirzamohammadi) [Orabug: 39860383]
- crypto: ecc - Fix carry overflow in vli multiplication (Anastasia Tishchenko) [Orabug: 39785911] {CVE-2026-64313}
- crypto: pcrypt - restore callback for non-parallel fallback (Ruijie Li) [Orabug: 39785907] {CVE-2026-64312}
- crypto: drbg - Fix returning success on failure in CTR_DRBG (Eric Biggers) [Orabug: 39785894] {CVE-2026-64306}
- KVM: x86: Use scratch field in MMIO fragment to hold small write values (Sean Christopherson) [Orabug: 39273524] {CVE-2026-31588}
- xfrm: clear trailing padding in build_polexpire() (Yasuaki Torimaru) [Orabug: 39262403] {CVE-2026-31664}
- tipc: fix bc_ackers underflow on duplicate GRP_ACK_MSG (Oleh Konko) [Orabug: 39262395] {CVE-2026-31662}
- netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (Lukas Johannes Moller) [Orabug: 39167519] {CVE-2026-23457}
- netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (Jenny Guanni Qu) [Orabug: 39167511] {CVE-2026-23455}

[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) [Orabug: 39784513,39853776] {CVE-2026-68480}
- x86/alternatives: Disable interrupts and sync when optimizing NOPs in place (Thomas Gleixner) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternative: Support relocations in alternatives (Peter Zijlstra) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternative: Make debug-alternative selective (Peter Zijlstra) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternatives: Add alt_instr.flags (Borislav Petkov) [Orabug: 39784513] {CVE-2026-68480}
- x86/asm: Provide ALTERNATIVE_3 (Peter Zijlstra) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternative: Optimize single-byte NOPs at an arbitrary position (Borislav Petkov) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternative: Align insn bytes vertically (Borislav Petkov) [Orabug: 39784513] {CVE-2026-68480}
(H Peter Anvin) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternatives: Optimize optimize_nops() (Peter Zijlstra) [Orabug: 39784513] {CVE-2026-68480}
- x86: Add insn_decode_kernel() (Peter Zijlstra) [Orabug: 39784513] {CVE-2026-68480}
- x86/insn: Add an insn_decode() API (Borislav Petkov) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternative: Use ALTERNATIVE_TERNARY() in _static_cpu_has() (Juergen Gross) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternative: Support ALTERNATIVE_TERNARY (Juergen Gross) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternative: Merge include files (Juergen Gross) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternative: Drop unused feature parameter from ALTINSTR_REPLACEMENT() (Juergen Gross) [Orabug: 39784513] {CVE-2026-68480}
- x86/insn: Support big endian cross-compiles (Martin Schwidefsky) [Orabug: 39784513] {CVE-2026-68480}
- x86/tools: Use tools headers for instruction decoder selftests (Vasily Gorbik) [Orabug: 39784513] {CVE-2026-68480}
- tools headers: Get tools's linux/compiler.h closer to the kernel's (Arnaldo Carvalho de Melo) [Orabug: 39784513] {CVE-2026-68480}
- perf build: Allow nested externs to enable BUILD_BUG() usage (Vasily Gorbik) [Orabug: 39784513] {CVE-2026-68480}
- objtool: Allow nested externs to enable BUILD_BUG() (Vasily Gorbik) [Orabug: 39784513] {CVE-2026-68480}
- objtool: Make relocation in alternative handling arch dependent (Julien Thierry) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternatives: Add pr_fmt() to debug macros (Borislav Petkov) [Orabug: 39784513] {CVE-2026-68480}
- tools headers: Adopt verbatim copy of compiletime_assert() from kernel sources (Arnaldo Carvalho de Melo) [Orabug: 39784513] {CVE-2026-68480}
- x86/alternatives: Teach text_poke_bp() to emulate instructions (Peter Zijlstra) [Orabug: 39784513] {CVE-2026-68480}
- tools headers: Synchronize linux/bits.h with the kernel sources (Arnaldo Carvalho de Melo) [Orabug: 39784513] {CVE-2026-68480}
- 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: 39558751,39919265] {CVE-2026-74684}
- 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]

Related CVEs

CVE-2024-21963

Updated Packages

Release/Architecture	Filename	sha256	Superseded By Advisory	Channel Label
Oracle Linux 7 (x86_64)	kernel-uek-5.4.17-2136.361.4.1.el7uek.src.rpm	804b01fbbe247e52b4c8f0c11d74902dc54f5bbd2e033896cd5b46c20a88ce06	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-5.4.17-2136.361.4.1.el7uek.x86_64.rpm	e65e30a67a2fac2d58da8169d114c014aa1289a38b571917c64d56936e387b08	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-container-5.4.17-2136.361.4.1.el7uek.x86_64.rpm	ee2832eb756629d2a446aae35202d81a408bee6001c9a46853ceb3fc3af610c3	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-container-debug-5.4.17-2136.361.4.1.el7uek.x86_64.rpm	4a5e4a210730cf21e50b54b780b9bf8bb0acf7ab469e6727056aadb1ea8d1752	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-debug-5.4.17-2136.361.4.1.el7uek.x86_64.rpm	cb0ecb0b52e2f9b86050945a87aabd301787b0ce9974d814497c3cbb37ebeb82	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-debug-devel-5.4.17-2136.361.4.1.el7uek.x86_64.rpm	13f712c3c12feb200335494feeef6b3102a64f6b74569603061bf48dd1615057	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-devel-5.4.17-2136.361.4.1.el7uek.x86_64.rpm	8a55a3e01b59be14d29f392e12502961c4a1c04bc82b8627db8d1602d98384c9	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-doc-5.4.17-2136.361.4.1.el7uek.noarch.rpm	60d7435f2bc5cd33573f5ea78edd9ef2dd9f6363bd239b5f440ffb5cb95d6f38	-	ol7_x86_64_UEKR6_ELS
	kernel-uek-tools-5.4.17-2136.361.4.1.el7uek.x86_64.rpm	be66c017b688bccf49ef89de43875d1af4c533c9c3b46a4d2b28c2e5c7bd2009	-	ol7_x86_64_UEKR6_ELS
Oracle Linux 8 (aarch64)	kernel-uek-5.4.17-2136.361.4.1.el8uek.src.rpm	dc32e9f63afa82f1c63963a46ceb512302594c66aa22efcea0f59ee7b0f0e93e	-	ol8_aarch64_baseos_latest
	kernel-uek-5.4.17-2136.361.4.1.el8uek.src.rpm	dc32e9f63afa82f1c63963a46ceb512302594c66aa22efcea0f59ee7b0f0e93e	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-5.4.17-2136.361.4.1.el8uek.aarch64.rpm	404910f5ae5cdf35f8be4431efbe4ca1f0ffce8aeefa0030933342432c7848f1	-	ol8_aarch64_baseos_latest
	kernel-uek-5.4.17-2136.361.4.1.el8uek.aarch64.rpm	404910f5ae5cdf35f8be4431efbe4ca1f0ffce8aeefa0030933342432c7848f1	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-debug-5.4.17-2136.361.4.1.el8uek.aarch64.rpm	f34ac1905a07bcb2313a5af08dda6096eb5fd6a0987b8d4bde471b07cbdb0a98	-	ol8_aarch64_baseos_latest
	kernel-uek-debug-5.4.17-2136.361.4.1.el8uek.aarch64.rpm	f34ac1905a07bcb2313a5af08dda6096eb5fd6a0987b8d4bde471b07cbdb0a98	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-debug-devel-5.4.17-2136.361.4.1.el8uek.aarch64.rpm	bfcdf5b7d6a6428cabc6a85b62519644b5c4b06d154f4e825fe1ab9abd81d2ac	-	ol8_aarch64_baseos_latest
	kernel-uek-debug-devel-5.4.17-2136.361.4.1.el8uek.aarch64.rpm	bfcdf5b7d6a6428cabc6a85b62519644b5c4b06d154f4e825fe1ab9abd81d2ac	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-devel-5.4.17-2136.361.4.1.el8uek.aarch64.rpm	e3858feb31b19d3137d54912956e4c16385b52f0048466fa765a3f08bfa7f2a5	-	ol8_aarch64_baseos_latest
	kernel-uek-devel-5.4.17-2136.361.4.1.el8uek.aarch64.rpm	e3858feb31b19d3137d54912956e4c16385b52f0048466fa765a3f08bfa7f2a5	-	ol8_aarch64_u10_baseos_patch
	kernel-uek-doc-5.4.17-2136.361.4.1.el8uek.noarch.rpm	2a7b5c53bfc2c82cd666432c73fd8098789ff525d833495c3bf1ef64bb966a4c	-	ol8_aarch64_baseos_latest
	kernel-uek-doc-5.4.17-2136.361.4.1.el8uek.noarch.rpm	2a7b5c53bfc2c82cd666432c73fd8098789ff525d833495c3bf1ef64bb966a4c	-	ol8_aarch64_u10_baseos_patch
Oracle Linux 8 (x86_64)	kernel-uek-5.4.17-2136.361.4.1.el8uek.src.rpm	dc32e9f63afa82f1c63963a46ceb512302594c66aa22efcea0f59ee7b0f0e93e	-	ol8_x86_64_UEKR6
	kernel-uek-5.4.17-2136.361.4.1.el8uek.x86_64.rpm	0845136bd2186889381309e3effeec8605a7ddcdcf7652c18365a24b2cbdb775	-	ol8_x86_64_UEKR6
	kernel-uek-container-5.4.17-2136.361.4.1.el8uek.x86_64.rpm	0bd6ed5ff54f4884252500f19241306c4a2dd26c319698c9da8c13c9a71140bd	-	ol8_x86_64_UEKR6
	kernel-uek-container-debug-5.4.17-2136.361.4.1.el8uek.x86_64.rpm	0f40924bf0990c9cc376a7b4df11bd08d24b42fd299e29fc7b1f0cd1dafd912d	-	ol8_x86_64_UEKR6
	kernel-uek-debug-5.4.17-2136.361.4.1.el8uek.x86_64.rpm	421bfc305ecab1bcce95b224b550acc39198862580c766e2d2a89397f9f1f9c8	-	ol8_x86_64_UEKR6
	kernel-uek-debug-devel-5.4.17-2136.361.4.1.el8uek.x86_64.rpm	cc41e0e6877ceb19e31fd16759595ef1705697497ca129c8d92fbae6ff40e85f	-	ol8_x86_64_UEKR6
	kernel-uek-devel-5.4.17-2136.361.4.1.el8uek.x86_64.rpm	f358e8b825ebaf69876457ab6e39bc97037389e7830b41e8475de5c47e0cbf2b	-	ol8_x86_64_UEKR6
	kernel-uek-doc-5.4.17-2136.361.4.1.el8uek.noarch.rpm	2a7b5c53bfc2c82cd666432c73fd8098789ff525d833495c3bf1ef64bb966a4c	-	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