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
1 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 1 High 31 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-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 kernel-64kb: netfilter: nf_conncount: increase the connection clean up limit to 64 (bsc#1266710).7.5 0.0075 None reported
High CVE-2026-43186 kernel-uek: ELSA-2026-50372: Unbreakable Enterprise kernel security update (IMPORTANT)9.8 0.0064 None reported
High CVE-2026-43304 kernel-64kb: libceph: define and enforce CEPH_MAX_KEY_LEN (bsc#1264993).9.8 0.0061 None reported
High CVE-2026-43194 kernel-64kb: net: consume xmit errors of GSO frames (bsc#1264304).7.5 0.0053 None reported
High CVE-2026-43226 kernel-64kb: net/rds: No shortcut out of RDS_CONN_ERROR (bsc#1264544).7.5 0.0052 None reported
High CVE-2026-43230 kernel-64kb: net/rds: Clear reconnect pending bit (bsc#1264539).7.5 0.0052 None reported
High CVE-2026-43158 kernel-64kb: xfs: fix freemap adjustments when adding xattrs to leaf blocks (bsc#1264595).8.8 0.0047 None reported
High CVE-2026-43187 kernel-64kb: xfs: delete attr leaf freemap entries when empty (bsc#1264603).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-64kb: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (bsc#1264337).8.2 0.0046 None reported
High CVE-2026-43139 kernel-64kb: xfrm6: fix uninitialized saddr in xfrm6_get_saddr() (bsc#1264294).8.6 0.0038 None reported
High CVE-2026-45856 kernel-64kb: RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send (bsc#1266720).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 kernel-default: pstore/ram: fix buffer overflow in persistent_ram_save_old() (bsc#1267635).7.8 0.0017 None reported
High CVE-2026-45886 kernel-default: bpf: Fix bpf_xdp_store_bytes proto for read-only arg (bsc#1266810).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 kernel-64kb: RDMA/umem: Fix double dma_buf_unpin in failure path (bsc#1264612).8.1 0.0014 None reported
High CVE-2026-43150 kernel-64kb: perf/arm-cmn: Ensure dtm_idx is big enough (bsc#1264415).7.8 0.0014 None reported
High CVE-2026-43133 kernel-64kb: Security update for the Linux Kernel8.1 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 kernel-64kb: iommu/vt-d: Flush cache for PASID table before using it (bsc#1266705).7.8 0.0013 None reported
High CVE-2026-45970 kernel-livepatch-SLE15-SP6_Update_12: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (bsc#1267206).8.8 0.0013 None reported
High CVE-2026-45912 ext4: don't cache extent during splitting extent7.1 0.0012 None reported
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