# ALAS2023-2026-2032: Security update for 18 packages

ALAS2023-2026-2032, released August 3, 2026, fixes 26 CVEs across 18 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/alas2023-2026-2032
- Platform: Linux
- Released: Aug 3, 2026
- Priority: Urgent (Closes CVE-2026-63800, rated Critical)
- CVEs: 26, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://alas.aws.amazon.com/AL2023/ALAS-2026-2032.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [bpftool](https://patchblox.com/security/data/product/linux/bpftool.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [bpftool-debuginfo](https://patchblox.com/security/data/product/linux/bpftool-debuginfo.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel](https://patchblox.com/security/data/product/linux/kernel.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-debuginfo](https://patchblox.com/security/data/product/linux/kernel-debuginfo.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-debuginfo-common-aarch64](https://patchblox.com/security/data/product/linux/kernel-debuginfo-common-aarch64.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-debuginfo-common-x86_64](https://patchblox.com/security/data/product/linux/kernel-debuginfo-common-x86-64.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-devel](https://patchblox.com/security/data/product/linux/kernel-devel.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-headers](https://patchblox.com/security/data/product/linux/kernel-headers.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-livepatch-6.1.177-224.371](https://patchblox.com/security/data/product/linux/kernel-livepatch-6.1.177-224.371.md) | amzn 2023 | 1:1.0-0.amzn2023 |
| [kernel-modules-extra](https://patchblox.com/security/data/product/linux/kernel-modules-extra.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-modules-extra-common](https://patchblox.com/security/data/product/linux/kernel-modules-extra-common.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-tools](https://patchblox.com/security/data/product/linux/kernel-tools.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-tools-debuginfo](https://patchblox.com/security/data/product/linux/kernel-tools-debuginfo.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [kernel-tools-devel](https://patchblox.com/security/data/product/linux/kernel-tools-devel.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [perf](https://patchblox.com/security/data/product/linux/perf.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [perf-debuginfo](https://patchblox.com/security/data/product/linux/perf-debuginfo.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [python3-perf](https://patchblox.com/security/data/product/linux/python3-perf.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |
| [python3-perf-debuginfo](https://patchblox.com/security/data/product/linux/python3-perf-debuginfo.md) | amzn 2023 | 1:6.1.177-224.371.amzn2023 |

## 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-2026-53224](https://patchblox.com/security/data/cve/CVE-2026-53224.md) | Urgent | linux: In the Linux kernel, the following vulnerability has been resolved:  sctp: validate embedded INIT chunk and address l... | 9.1 | 0.0057 |  |
| [CVE-2026-63824](https://patchblox.com/security/data/cve/CVE-2026-63824.md) | Urgent | KEYS: fix overflow in keyctl_pkey_params_get_2() | 9.8 | 0.0017 |  |
| [CVE-2026-52991](https://patchblox.com/security/data/cve/CVE-2026-52991.md) | Urgent | sched/psi: fix race between file release and pressure write | 9.8 | 0.0015 |  |
| [CVE-2026-63833](https://patchblox.com/security/data/cve/CVE-2026-63833.md) | Urgent | ntfs3: reject direct userspace writes to reserved $LX* xattrs | 9.8 | 0.0014 |  |
| [CVE-2026-53403](https://patchblox.com/security/data/cve/CVE-2026-53403.md) | Urgent | fbdev: Fix fb_new_modelist to prevent null-ptr-deref in fb_videomode_to_var | 9.8 | 0.0013 |  |
| [CVE-2026-46331](https://patchblox.com/security/data/cve/CVE-2026-46331.md) | High | net/sched: fix pedit partial COW leading to page cache corruption | 8.1 | 0.0064 |  |
| [CVE-2025-40158](https://patchblox.com/security/data/cve/CVE-2025-40158.md) | High | ipv6: use RCU in ip6_output() | 8.1 | 0.0056 |  |
| [CVE-2026-53398](https://patchblox.com/security/data/cve/CVE-2026-53398.md) | High | NFSD: Fix SECINFO_NO_NAME decode error cleanup | 9.8 | 0.0054 |  |
| [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-2026-63808](https://patchblox.com/security/data/cve/CVE-2026-63808.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 9.8 | 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-2026-63801](https://patchblox.com/security/data/cve/CVE-2026-63801.md) | High | tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done | 8.8 | 0.0051 |  |
| [CVE-2026-53246](https://patchblox.com/security/data/cve/CVE-2026-53246.md) | High | sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing | 9.8 | 0.0044 |  |
| [CVE-2026-63830](https://patchblox.com/security/data/cve/CVE-2026-63830.md) | High | net: skmsg: preserve sg.copy across SG transforms | 9.4 | 0.0044 |  |
| [CVE-2026-53361](https://patchblox.com/security/data/cve/CVE-2026-53361.md) | High | af_unix: Set gc_in_progress to true in unix_gc(). | 8.8 | 0.0026 |  |
| [CVE-2026-63807](https://patchblox.com/security/data/cve/CVE-2026-63807.md) | High | KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level | 8.8 | 0.0017 |  |
| [CVE-2026-63823](https://patchblox.com/security/data/cve/CVE-2026-63823.md) | High | keys: Pin request_key_auth payload in instantiate paths | 8.8 | 0.0016 |  |
| [CVE-2026-63809](https://patchblox.com/security/data/cve/CVE-2026-63809.md) | High | bpf: use kvfree() for replaced sysctl write buffer | 7.8 | 0.0015 |  |
| [CVE-2026-53381](https://patchblox.com/security/data/cve/CVE-2026-53381.md) | High | virtiofs: fix UAF on submount umount | 8.1 | 0.0014 |  |
| [CVE-2026-53388](https://patchblox.com/security/data/cve/CVE-2026-53388.md) | High | fuse: re-lock request before replacing page cache folio | 8.8 | 0.0013 |  |
| [CVE-2026-43091](https://patchblox.com/security/data/cve/CVE-2026-43091.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved:  xfrm: Wait for RCU readers during policy netns e... | 7.8 | 0.0013 |  |
| [CVE-2026-53167](https://patchblox.com/security/data/cve/CVE-2026-53167.md) | High | fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios | 7.0 | 0.0013 |  |
| [CVE-2026-52909](https://patchblox.com/security/data/cve/CVE-2026-52909.md) | High | ip6_vti: set netns_immutable on the fallback device. | 7.8 | 0.0011 |  |
| [CVE-2026-53385](https://patchblox.com/security/data/cve/CVE-2026-53385.md) | Routine | vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write | 5.5 | 0.0013 |  |
| [CVE-2026-52928](https://patchblox.com/security/data/cve/CVE-2026-52928.md) | Routine | af_unix: Reject SIOCATMARK on non-stream sockets | 5.5 | 0.0011 |  |

---

Data as of 2026-11-10T13:56:55Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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