Linux · Amazon Linux · Security advisory · April 7, 2026

ALAS2023-2026-1544: Security update for 22 packages

ALAS2023-2026-1544, released April 7, 2026, fixes 70 CVEs across 22 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
70
3 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0105
64th percentile

Priority of the 70 CVEs

Patch now 0 Urgent 3 High 29 Routine 38

Fixed package versions

ProductReleaseFixed in
bpftoolamzn 20231:6.1.166-197.305.amzn2023
bpftool-debuginfoamzn 20231:6.1.166-197.305.amzn2023
kernelamzn 20231:6.1.166-197.305.amzn2023
kernel-debuginfoamzn 20231:6.1.166-197.305.amzn2023
kernel-debuginfo-common-aarch64amzn 20231:6.1.166-197.305.amzn2023
kernel-debuginfo-common-x86_64amzn 20231:6.1.166-197.305.amzn2023
kernel-develamzn 20231:6.1.166-197.305.amzn2023
kernel-headersamzn 20231:6.1.166-197.305.amzn2023
kernel-libbpfamzn 20231:6.1.166-197.305.amzn2023
kernel-libbpf-debuginfoamzn 20231:6.1.166-197.305.amzn2023
kernel-libbpf-develamzn 20231:6.1.166-197.305.amzn2023
kernel-libbpf-staticamzn 20231:6.1.166-197.305.amzn2023
kernel-livepatch-6.1.166-197.305amzn 20231:1.0-0.amzn2023
kernel-modules-extraamzn 20231:6.1.166-197.305.amzn2023
kernel-modules-extra-commonamzn 20231:6.1.166-197.305.amzn2023
kernel-toolsamzn 20231:6.1.166-197.305.amzn2023
kernel-tools-debuginfoamzn 20231:6.1.166-197.305.amzn2023
kernel-tools-develamzn 20231:6.1.166-197.305.amzn2023
perfamzn 20231:6.1.166-197.305.amzn2023
perf-debuginfoamzn 20231:6.1.166-197.305.amzn2023
python3-perfamzn 20231:6.1.166-197.305.amzn2023
python3-perf-debuginfoamzn 20231:6.1.166-197.305.amzn2023

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2026-43186 linux: In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: fix heap buffer overflow in __ioam6_...9.8 0.0064 None reported
Urgent CVE-2026-43304 linux: In the Linux kernel, the following vulnerability has been resolved: libceph: define and enforce CEPH_MAX_KEY_LEN Wh...9.8 0.0061 None reported
Urgent CVE-2025-71305 drm/display/dp_mst: Add protection against 0 vcpi9.8 0.0016 None reported
High CVE-2026-23231 netfilter: nf_tables: fix use-after-free in nf_tables_addchain()7.8 0.0105 None reported
High CVE-2026-45860 linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: increase the connection...7.5 0.0075 None reported
High CVE-2026-43194 linux: In the Linux kernel, the following vulnerability has been resolved: net: consume xmit errors of GSO frames udpgro_f...7.5 0.0053 None reported
High CVE-2026-43226 linux: In the Linux kernel, the following vulnerability has been resolved: net/rds: No shortcut out of RDS_CONN_ERROR RDS...7.5 0.0052 None reported
High CVE-2026-43230 linux: In the Linux kernel, the following vulnerability has been resolved: net/rds: Clear reconnect pending bit When cance...7.5 0.0052 None reported
High CVE-2026-43158 linux: In the Linux kernel, the following vulnerability has been resolved: xfs: fix freemap adjustments when adding xattrs...8.8 0.0047 None reported
High CVE-2026-43187 linux: In the Linux kernel, the following vulnerability has been resolved: xfs: delete attr leaf freemap entries when empty...8.8 0.0047 None reported
High CVE-2026-43190 kernel: In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_tcpmss: check remaining length befo...8.2 0.0046 None reported
High CVE-2026-43233 kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: n...8.2 0.0046 None reported
High CVE-2026-43139 linux: In the Linux kernel, the following vulnerability has been resolved: xfrm6: fix uninitialized saddr in xfrm6_get_sadd...8.6 0.0038 None reported
High CVE-2026-45856 linux: In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Validate wqe_size before using it i...8.8 0.0019 None reported
High CVE-2026-23243 RDMA/umad: Reject negative data_len in ib_umad_write7.8 0.0018 None reported
High CVE-2026-46253 linux: In the Linux kernel, the following vulnerability has been resolved: pstore/ram: fix buffer overflow in persistent_ra...7.8 0.0017 None reported
High CVE-2026-45886 linux: In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpf_xdp_store_bytes proto for read-only...7.0 0.0016 None reported
High CVE-2026-45935 linux: In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix slab-out-of-bounds read in DeleteI...7.8 0.0015 None reported
High CVE-2026-43128 linux: In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Fix double dma_buf_unpin in failure p...8.1 0.0014 None reported
High CVE-2026-43150 linux: In the Linux kernel, the following vulnerability has been resolved: perf/arm-cmn: Reject unsupported hardware config...7.8 0.0014 None reported
High CVE-2026-43133 kernel: In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emu...8.1 0.0013 None reported
High CVE-2026-46251 linux: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix block_group_tree dirty_list corruptio...8.4 0.0013 None reported
High CVE-2026-45862 linux: In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Flush cache for PASID table before u...7.8 0.0013 None reported
High CVE-2026-45970 kernel-rt-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system8.8 0.0013 None reported
High CVE-2026-45912 ext4: don't cache extent during splitting extent7.1 0.0012 None reported
Showing 1 to 25 of 70 1Next

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