# ELSA-2026-61887-0: Security update for 30 packages ELSA-2026-61887-0, released September 1, 2026, fixes 34 CVEs across 30 products. None of them is reported as exploited. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/fix/linux/elsa-2026-61887-0 - Platform: Linux - Released: Sep 1, 2026 - Priority: Urgent (Closes CVE-2026-63800, rated Critical) - CVEs: 34, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://linux.oracle.com/errata/ELSA-2026-61887-0.html ## Applies to | Product | Release | Fixed in | |---|---|---| | [kernel](https://patchblox.com/security/data/product/linux/kernel.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-abi-stablelists](https://patchblox.com/security/data/product/linux/kernel-abi-stablelists.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-core](https://patchblox.com/security/data/product/linux/kernel-core.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-cross-headers](https://patchblox.com/security/data/product/linux/kernel-cross-headers.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-debug](https://patchblox.com/security/data/product/linux/kernel-debug.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-debug-core](https://patchblox.com/security/data/product/linux/kernel-debug-core.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-debug-devel](https://patchblox.com/security/data/product/linux/kernel-debug-devel.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-debug-devel-matched](https://patchblox.com/security/data/product/linux/kernel-debug-devel-matched.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-debug-modules](https://patchblox.com/security/data/product/linux/kernel-debug-modules.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-debug-modules-core](https://patchblox.com/security/data/product/linux/kernel-debug-modules-core.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-debug-modules-extra](https://patchblox.com/security/data/product/linux/kernel-debug-modules-extra.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-debug-uki-virt](https://patchblox.com/security/data/product/linux/kernel-debug-uki-virt.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-devel](https://patchblox.com/security/data/product/linux/kernel-devel.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-devel-matched](https://patchblox.com/security/data/product/linux/kernel-devel-matched.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-doc](https://patchblox.com/security/data/product/linux/kernel-doc.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-headers](https://patchblox.com/security/data/product/linux/kernel-headers.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-modules](https://patchblox.com/security/data/product/linux/kernel-modules.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-modules-core](https://patchblox.com/security/data/product/linux/kernel-modules-core.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-modules-extra](https://patchblox.com/security/data/product/linux/kernel-modules-extra.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-modules-extra-matched](https://patchblox.com/security/data/product/linux/kernel-modules-extra-matched.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-tools](https://patchblox.com/security/data/product/linux/kernel-tools.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-tools-libs](https://patchblox.com/security/data/product/linux/kernel-tools-libs.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-tools-libs-devel](https://patchblox.com/security/data/product/linux/kernel-tools-libs-devel.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-uki-virt](https://patchblox.com/security/data/product/linux/kernel-uki-virt.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [kernel-uki-virt-addons](https://patchblox.com/security/data/product/linux/kernel-uki-virt-addons.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [libperf](https://patchblox.com/security/data/product/linux/libperf.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [perf](https://patchblox.com/security/data/product/linux/perf.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [python3-perf](https://patchblox.com/security/data/product/linux/python3-perf.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [rtla](https://patchblox.com/security/data/product/linux/rtla.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | | [rv](https://patchblox.com/security/data/product/linux/rv.md) | ol 10 | 0:6.12.0-211.50.1.el10_2 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2026-63800](https://patchblox.com/security/data/cve/CVE-2026-63800.md) | Urgent | pNFS: Fix use-after-free in pnfs_update_layout() | 9.8 | 0.0064 | | | [CVE-2026-68166](https://patchblox.com/security/data/cve/CVE-2026-68166.md) | Urgent | userfaultfd: prevent registration of special VMAs | 9.8 | 0.0021 | | | [CVE-2026-53053](https://patchblox.com/security/data/cve/CVE-2026-53053.md) | Urgent | iommu/amd: Fix clone_alias() to use the original device's devid | 9.8 | 0.0013 | | | [CVE-2026-72130](https://patchblox.com/security/data/cve/CVE-2026-72130.md) | High | kernel: nvmet-auth: reject short AUTH_RECEIVE buffers (CKI Backport Bot) [RHEL-244913] | 9.8 | 0.0080 | | | [CVE-2026-64320](https://patchblox.com/security/data/cve/CVE-2026-64320.md) | High | nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page | 9.1 | 0.0080 | | | [CVE-2026-72069](https://patchblox.com/security/data/cve/CVE-2026-72069.md) | High | kernel: locking/rt: Fix the incorrect RCU protection in rt_spin_unlock() (Waiman Long) [RHEL-242684] | 9.8 | 0.0073 | | | [CVE-2026-53399](https://patchblox.com/security/data/cve/CVE-2026-53399.md) | High | nfsd: release layout stid on setlease failure | 9.8 | 0.0066 | | | [CVE-2026-23003](https://patchblox.com/security/data/cve/CVE-2026-23003.md) | High | kernel-64kb: geneve: Fix incorrect inner network header offset when innerprotoinherit is set (bsc#1257246). | 8.8 | 0.0055 | | | [CVE-2026-53392](https://patchblox.com/security/data/cve/CVE-2026-53392.md) | High | NFSv4/flexfiles: reject zero filehandle version count | 8.8 | 0.0053 | | | [CVE-2026-53397](https://patchblox.com/security/data/cve/CVE-2026-53397.md) | High | nfsd: fix posix_acl leak on SETACL decode failure | 8.8 | 0.0053 | | | [CVE-2026-53391](https://patchblox.com/security/data/cve/CVE-2026-53391.md) | High | NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr | 8.8 | 0.0052 | | | [CVE-2026-64384](https://patchblox.com/security/data/cve/CVE-2026-64384.md) | High | smb: client: fix change notify replay double-free | 9.8 | 0.0046 | | | [CVE-2026-53026](https://patchblox.com/security/data/cve/CVE-2026-53026.md) | High | kernel: In the Linux kernel, the following vulnerability has been resolved: NFSD: fix nfs4_file access extra count in nfsd4_a... | 8.8 | 0.0043 | | | [CVE-2026-64136](https://patchblox.com/security/data/cve/CVE-2026-64136.md) | High | kernel: In the Linux kernel, the following vulnerability has been resolved: smb: client: protect tc_count increment in smb2_f... | 9.8 | 0.0041 | | | [CVE-2026-53196](https://patchblox.com/security/data/cve/CVE-2026-53196.md) | High | USB: serial: io_ti: fix heap overflow in get_manuf_info() | 8.8 | 0.0027 | | | [CVE-2026-68480](https://patchblox.com/security/data/cve/CVE-2026-68480.md) | High | x86/bugs: Make Safe-RET robust against interrupt injection | 8.8 | 0.0023 | | | [CVE-2026-64490](https://patchblox.com/security/data/cve/CVE-2026-64490.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: ALSA: virtio: Validate control metadata from the... | 8.8 | 0.0019 | | | [CVE-2025-21834](https://patchblox.com/security/data/cve/CVE-2025-21834.md) | High | kernel-rt-64k-core: kernel: seccomp: passthrough uretprobe systemcall without filtering | 8.8 | 0.0018 | | | [CVE-2026-64276](https://patchblox.com/security/data/cve/CVE-2026-64276.md) | High | Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count | 8.8 | 0.0017 | | | [CVE-2026-64277](https://patchblox.com/security/data/cve/CVE-2026-64277.md) | High | Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count | 8.8 | 0.0017 | | | [CVE-2026-64304](https://patchblox.com/security/data/cve/CVE-2026-64304.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: crypto: qat - validate RSA CRT component lengths... | 8.8 | 0.0017 | | | [CVE-2026-68086](https://patchblox.com/security/data/cve/CVE-2026-68086.md) | High | mm/khugepaged: write all dirty file folios when collapsing | 8.8 | 0.0015 | | | [CVE-2026-64298](https://patchblox.com/security/data/cve/CVE-2026-64298.md) | High | NFSv4: include MAY_WRITE in open permission mask for O_TRUNC | 8.8 | 0.0015 | | | [CVE-2026-64018](https://patchblox.com/security/data/cve/CVE-2026-64018.md) | High | kernel-default: Security update for the Linux Kernel | 9.3 | 0.0014 | | | [CVE-2026-64438](https://patchblox.com/security/data/cve/CVE-2026-64438.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: crypto: qat - fix VF2PF work teardown race in ad... | 8.8 | 0.0014 | | | [CVE-2026-43450](https://patchblox.com/security/data/cve/CVE-2026-43450.md) | High | kernel-rt-64k-modules-core: kernel: netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() | 8.8 | 0.0013 | | | [CVE-2026-53189](https://patchblox.com/security/data/cve/CVE-2026-53189.md) | High | bpftool: kernel: mm/huge_memory: update file PMD counter before folio_put() | 8.8 | 0.0013 | | | [CVE-2026-46120](https://patchblox.com/security/data/cve/CVE-2026-46120.md) | High | kernel: kernel: ip6_gre: Use cached t->net in ip6erspan_changelink() | 8.8 | 0.0013 | | | [CVE-2026-45970](https://patchblox.com/security/data/cve/CVE-2026-45970.md) | High | kernel-livepatch-SLE15-SP6_Update_12: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (bsc#1267206). | 8.8 | 0.0013 | | | [CVE-2026-64189](https://patchblox.com/security/data/cve/CVE-2026-64189.md) | High | netfilter: ipset: fix race between dump and ip_set_list resize | 8.8 | 0.0013 | | | [CVE-2026-43454](https://patchblox.com/security/data/cve/CVE-2026-43454.md) | High | kernel-debug-devel: kernel: netfilter: nf_tables: Fix for duplicate device in netdev hooks | 8.8 | 0.0012 | | | [CVE-2026-53185](https://patchblox.com/security/data/cve/CVE-2026-53185.md) | High | kernel: kernel: zram: fix use-after-free in zram_bvec_write_partial() | 8.8 | 0.0011 | | | [CVE-2026-53153](https://patchblox.com/security/data/cve/CVE-2026-53153.md) | High | kernel-rt-64k: kernel: mm/list_lru: drain before clearing xarray entry on reparent | 8.8 | 0.0010 | | | [CVE-2026-64418](https://patchblox.com/security/data/cve/CVE-2026-64418.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix shrinker_info teardown race wi... | 8.8 | 0.0010 | | --- Data as of 2026-11-11T07:45:43Z UTC. 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