Amazon Linux 2023 Security Advisory: ALAS2023-2026-1594
Advisory Released Date: 2026-04-30
Advisory Updated Date: 2026-04-30
FAQs regarding Amazon Linux ALAS/CVE Severity
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ctnetlink: remove refcounting in expectation dumpers (CVE-2025-39764)
In the Linux kernel, the following vulnerability has been resolved:
ipv6: use RCU in ip6_xmit() (CVE-2025-40135)
In the Linux kernel, the following vulnerability has been resolved:
blk-throttle: fix access race during throttle policy activation (CVE-2025-40147)
In the Linux kernel, the following vulnerability has been resolved:
binfmt_misc: restore write access before closing files opened by open_exec() (CVE-2025-68239)
In the Linux kernel, the following vulnerability has been resolved:
dm-verity: disable recursive forward error correction (CVE-2025-71161)
In the Linux kernel, the following vulnerability has been resolved:
dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() (CVE-2026-23004)
In the Linux kernel, the following vulnerability has been resolved:
tracing: Add recursion protection in kernel stack trace recording (CVE-2026-23138)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (CVE-2026-23274)
In the Linux kernel, the following vulnerability has been resolved:
net: add xmit recursion limit to tunnel xmit functions (CVE-2026-23276)
In the Linux kernel, the following vulnerability has been resolved:
net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (CVE-2026-23277)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: always walk all pending catchall elements (CVE-2026-23278)
In the Linux kernel, the following vulnerability has been resolved:
mptcp: pm: in-kernel: always mark signal+subflow endp as used (CVE-2026-23321)
In the Linux kernel, the following vulnerability has been resolved:
net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (CVE-2026-23368)
In the Linux kernel, the following vulnerability has been resolved:
mm: thp: deny THP for files on anonymous inodes (CVE-2026-23375)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: xt_CT: drop pending enqueued packets on template removal (CVE-2026-23391)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)
In the Linux kernel, the following vulnerability has been resolved:
nfnetlink_osf: validate individual option lengths in fingerprints (CVE-2026-23397)
In the Linux kernel, the following vulnerability has been resolved:
icmp: fix NULL pointer dereference in icmp_tag_validation() (CVE-2026-23398)
In the Linux kernel, the following vulnerability has been resolved:
nf_tables: nft_dynset: fix possible stateful expression memleak in error path (CVE-2026-23399)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: bpf: defer hook memory release until rcu readers are done (CVE-2026-23412)
In the Linux kernel, the following vulnerability has been resolved:
clsact: Fix use-after-free in init/destroy rollback asymmetry (CVE-2026-23413)
In the Linux kernel, the following vulnerability has been resolved:
udp_tunnel: fix NULL deref caused by udp_sock_create6 when CONFIG_IPV6=n (CVE-2026-23439)
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Fix race condition during IPSec ESN update (CVE-2026-23440)
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Prevent concurrent access to IPSec ASO context (CVE-2026-23441)
In the Linux kernel, the following vulnerability has been resolved:
ACPI: processor: Fix previous acpi_processor_errata_piix4() fix (CVE-2026-23443)
In the Linux kernel, the following vulnerability has been resolved:
igc: fix page fault in XDP TX timestamps handling (CVE-2026-23445)
In the Linux kernel, the following vulnerability has been resolved:
net/sched: teql: Fix double-free in teql_master_xmit (CVE-2026-23449)
In the Linux kernel, the following vulnerability has been resolved:
PM: runtime: Fix a race condition related to device removal (CVE-2026-23452)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (CVE-2026-23455)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (CVE-2026-23456)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (CVE-2026-23457)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (CVE-2026-23458)
In the Linux kernel, the following vulnerability has been resolved:
btrfs: log new dentries when logging parent dir of a conflicting inode (CVE-2026-23465)
In the Linux kernel, the following vulnerability has been resolved:
spi: fix statistics allocation (CVE-2026-23475)
In the Linux kernel, the following vulnerability has been resolved:
spi: fix use-after-free on controller registration failure (CVE-2026-31389)
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix krb5 mount with username option (CVE-2026-31392)
In the Linux kernel, the following vulnerability has been resolved:
nvdimm/bus: Fix potential use after free in asynchronous initialization (CVE-2026-31399)
In the Linux kernel, the following vulnerability has been resolved:
sunrpc: fix cache_request leak in cache_release (CVE-2026-31400)
In the Linux kernel, the following vulnerability has been resolved:
HID: bpf: prevent buffer overflow in hid_hw_request (CVE-2026-31401)
In the Linux kernel, the following vulnerability has been resolved:
nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
In the Linux kernel, the following vulnerability has been resolved:
NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd (CVE-2026-31403)
In the Linux kernel, the following vulnerability has been resolved:
xen/privcmd: restrict usage in unprivileged domU (CVE-2026-31788)
Affected Packages:
kernel6.12
Issue Correction:
Run dnf update kernel6.12 --releasever 2023.11.20260427 or dnf update --advisory ALAS2023-2026-1594 --releasever 2023.11.20260427 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
aarch64:
kernel-livepatch-6.12.79-101.147-1.0-0.amzn2023.aarch64
kernel6.12-tools-6.12.79-101.147.amzn2023.aarch64
bpftool6.12-6.12.79-101.147.amzn2023.aarch64
python3-perf6.12-6.12.79-101.147.amzn2023.aarch64
perf6.12-debuginfo-6.12.79-101.147.amzn2023.aarch64
python3-perf6.12-debuginfo-6.12.79-101.147.amzn2023.aarch64
kernel6.12-libbpf-debuginfo-6.12.79-101.147.amzn2023.aarch64
kernel6.12-tools-debuginfo-6.12.79-101.147.amzn2023.aarch64
kernel6.12-tools-devel-6.12.79-101.147.amzn2023.aarch64
kernel6.12-modules-extra-common-6.12.79-101.147.amzn2023.aarch64
kernel6.12-headers-6.12.79-101.147.amzn2023.aarch64
perf6.12-6.12.79-101.147.amzn2023.aarch64
kernel6.12-modules-extra-6.12.79-101.147.amzn2023.aarch64
bpftool6.12-debuginfo-6.12.79-101.147.amzn2023.aarch64
kernel6.12-libbpf-6.12.79-101.147.amzn2023.aarch64
kernel6.12-libbpf-static-6.12.79-101.147.amzn2023.aarch64
kernel6.12-libbpf-devel-6.12.79-101.147.amzn2023.aarch64
kernel6.12-6.12.79-101.147.amzn2023.aarch64
kernel6.12-debuginfo-6.12.79-101.147.amzn2023.aarch64
kernel6.12-debuginfo-common-aarch64-6.12.79-101.147.amzn2023.aarch64
kernel6.12-devel-6.12.79-101.147.amzn2023.aarch64
src:
kernel6.12-6.12.79-101.147.amzn2023.src
x86_64:
kernel6.12-libbpf-static-6.12.79-101.147.amzn2023.x86_64
kernel6.12-libbpf-debuginfo-6.12.79-101.147.amzn2023.x86_64
kernel6.12-tools-debuginfo-6.12.79-101.147.amzn2023.x86_64
bpftool6.12-debuginfo-6.12.79-101.147.amzn2023.x86_64
kernel6.12-tools-6.12.79-101.147.amzn2023.x86_64
kernel6.12-libbpf-devel-6.12.79-101.147.amzn2023.x86_64
kernel6.12-tools-devel-6.12.79-101.147.amzn2023.x86_64
kernel-livepatch-6.12.79-101.147-1.0-0.amzn2023.x86_64
kernel6.12-modules-extra-6.12.79-101.147.amzn2023.x86_64
kernel6.12-libbpf-6.12.79-101.147.amzn2023.x86_64
perf6.12-debuginfo-6.12.79-101.147.amzn2023.x86_64
bpftool6.12-6.12.79-101.147.amzn2023.x86_64
kernel6.12-headers-6.12.79-101.147.amzn2023.x86_64
python3-perf6.12-debuginfo-6.12.79-101.147.amzn2023.x86_64
kernel6.12-debuginfo-6.12.79-101.147.amzn2023.x86_64
kernel6.12-modules-extra-common-6.12.79-101.147.amzn2023.x86_64
perf6.12-6.12.79-101.147.amzn2023.x86_64
python3-perf6.12-6.12.79-101.147.amzn2023.x86_64
kernel6.12-6.12.79-101.147.amzn2023.x86_64
kernel6.12-debuginfo-common-x86_64-6.12.79-101.147.amzn2023.x86_64
kernel6.12-devel-6.12.79-101.147.amzn2023.x86_64