# 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. - Web page: https://patchblox.com/security/fix/linux/alas2023-2026-1544 - Platform: Linux - Released: Apr 7, 2026 - Priority: Urgent (Closes CVE-2026-43186, rated Critical) - CVEs: 70, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://alas.aws.amazon.com/AL2023/ALAS-2026-1544.html ## Applies to | Product | Release | Fixed in | |---|---|---| | [bpftool](https://patchblox.com/security/data/product/linux/bpftool.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [bpftool-debuginfo](https://patchblox.com/security/data/product/linux/bpftool-debuginfo.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel](https://patchblox.com/security/data/product/linux/kernel.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-debuginfo](https://patchblox.com/security/data/product/linux/kernel-debuginfo.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-debuginfo-common-aarch64](https://patchblox.com/security/data/product/linux/kernel-debuginfo-common-aarch64.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-debuginfo-common-x86_64](https://patchblox.com/security/data/product/linux/kernel-debuginfo-common-x86-64.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-devel](https://patchblox.com/security/data/product/linux/kernel-devel.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-headers](https://patchblox.com/security/data/product/linux/kernel-headers.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-libbpf](https://patchblox.com/security/data/product/linux/kernel-libbpf.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-libbpf-debuginfo](https://patchblox.com/security/data/product/linux/kernel-libbpf-debuginfo.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-libbpf-devel](https://patchblox.com/security/data/product/linux/kernel-libbpf-devel.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-libbpf-static](https://patchblox.com/security/data/product/linux/kernel-libbpf-static.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-livepatch-6.1.166-197.305](https://patchblox.com/security/data/product/linux/kernel-livepatch-6.1.166-197.305.md) | amzn 2023 | 1:1.0-0.amzn2023 | | [kernel-modules-extra](https://patchblox.com/security/data/product/linux/kernel-modules-extra.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-modules-extra-common](https://patchblox.com/security/data/product/linux/kernel-modules-extra-common.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-tools](https://patchblox.com/security/data/product/linux/kernel-tools.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-tools-debuginfo](https://patchblox.com/security/data/product/linux/kernel-tools-debuginfo.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [kernel-tools-devel](https://patchblox.com/security/data/product/linux/kernel-tools-devel.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [perf](https://patchblox.com/security/data/product/linux/perf.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [perf-debuginfo](https://patchblox.com/security/data/product/linux/perf-debuginfo.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [python3-perf](https://patchblox.com/security/data/product/linux/python3-perf.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | | [python3-perf-debuginfo](https://patchblox.com/security/data/product/linux/python3-perf-debuginfo.md) | amzn 2023 | 1:6.1.166-197.305.amzn2023 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2026-43186](https://patchblox.com/security/data/cve/CVE-2026-43186.md) | Urgent | linux: In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: fix heap buffer overflow in __ioam6_... | 9.8 | 0.0064 | | | [CVE-2026-43304](https://patchblox.com/security/data/cve/CVE-2026-43304.md) | Urgent | linux: In the Linux kernel, the following vulnerability has been resolved: libceph: define and enforce CEPH_MAX_KEY_LEN Wh... | 9.8 | 0.0061 | | | [CVE-2025-71305](https://patchblox.com/security/data/cve/CVE-2025-71305.md) | Urgent | drm/display/dp_mst: Add protection against 0 vcpi | 9.8 | 0.0016 | | | [CVE-2026-23231](https://patchblox.com/security/data/cve/CVE-2026-23231.md) | High | netfilter: nf_tables: fix use-after-free in nf_tables_addchain() | 7.8 | 0.0105 | | | [CVE-2026-45860](https://patchblox.com/security/data/cve/CVE-2026-45860.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: increase the connection... | 7.5 | 0.0075 | | | [CVE-2026-43194](https://patchblox.com/security/data/cve/CVE-2026-43194.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: net: consume xmit errors of GSO frames udpgro_f... | 7.5 | 0.0053 | | | [CVE-2026-43226](https://patchblox.com/security/data/cve/CVE-2026-43226.md) | High | 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 | | | [CVE-2026-43230](https://patchblox.com/security/data/cve/CVE-2026-43230.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: net/rds: Clear reconnect pending bit When cance... | 7.5 | 0.0052 | | | [CVE-2026-43158](https://patchblox.com/security/data/cve/CVE-2026-43158.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: xfs: fix freemap adjustments when adding xattrs... | 8.8 | 0.0047 | | | [CVE-2026-43187](https://patchblox.com/security/data/cve/CVE-2026-43187.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: xfs: delete attr leaf freemap entries when empty... | 8.8 | 0.0047 | | | [CVE-2026-43190](https://patchblox.com/security/data/cve/CVE-2026-43190.md) | High | kernel: In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_tcpmss: check remaining length befo... | 8.2 | 0.0046 | | | [CVE-2026-43233](https://patchblox.com/security/data/cve/CVE-2026-43233.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: n... | 8.2 | 0.0046 | | | [CVE-2026-43139](https://patchblox.com/security/data/cve/CVE-2026-43139.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: xfrm6: fix uninitialized saddr in xfrm6_get_sadd... | 8.6 | 0.0038 | | | [CVE-2026-45856](https://patchblox.com/security/data/cve/CVE-2026-45856.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Validate wqe_size before using it i... | 8.8 | 0.0019 | | | [CVE-2026-23243](https://patchblox.com/security/data/cve/CVE-2026-23243.md) | High | RDMA/umad: Reject negative data_len in ib_umad_write | 7.8 | 0.0018 | | | [CVE-2026-46253](https://patchblox.com/security/data/cve/CVE-2026-46253.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: pstore/ram: fix buffer overflow in persistent_ra... | 7.8 | 0.0017 | | | [CVE-2026-45886](https://patchblox.com/security/data/cve/CVE-2026-45886.md) | High | 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 | | | [CVE-2026-45935](https://patchblox.com/security/data/cve/CVE-2026-45935.md) | High | 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 | | | [CVE-2026-43128](https://patchblox.com/security/data/cve/CVE-2026-43128.md) | High | 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 | | | [CVE-2026-43150](https://patchblox.com/security/data/cve/CVE-2026-43150.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: perf/arm-cmn: Reject unsupported hardware config... | 7.8 | 0.0014 | | | [CVE-2026-43133](https://patchblox.com/security/data/cve/CVE-2026-43133.md) | High | kernel: In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emu... | 8.1 | 0.0013 | | | [CVE-2026-46251](https://patchblox.com/security/data/cve/CVE-2026-46251.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix block_group_tree dirty_list corruptio... | 8.4 | 0.0013 | | | [CVE-2026-45862](https://patchblox.com/security/data/cve/CVE-2026-45862.md) | High | 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 | | | [CVE-2026-45970](https://patchblox.com/security/data/cve/CVE-2026-45970.md) | High | kernel-rt-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 8.8 | 0.0013 | | | [CVE-2026-45912](https://patchblox.com/security/data/cve/CVE-2026-45912.md) | High | ext4: don't cache extent during splitting extent | 7.1 | 0.0012 | | | [CVE-2026-45983](https://patchblox.com/security/data/cve/CVE-2026-45983.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: nfsd: never defer requests during idmap lookup... | 7.0 | 0.0012 | | | [CVE-2026-46259](https://patchblox.com/security/data/cve/CVE-2026-46259.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: procfs: fix missing RCU protection when reading... | 8.4 | 0.0012 | | | [CVE-2026-43278](https://patchblox.com/security/data/cve/CVE-2026-43278.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: dm: clear cloned request bio pointer when last c... | 7.8 | 0.0012 | | | [CVE-2026-46328](https://patchblox.com/security/data/cve/CVE-2026-46328.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: apparmor: fix rlimit for posix cpu timers Posix... | 7.3 | 0.0011 | | | [CVE-2026-43211](https://patchblox.com/security/data/cve/CVE-2026-43211.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: PCI: Fix pci_slot_trylock() error handling Comm... | 7.8 | 0.0011 | | | [CVE-2026-43214](https://patchblox.com/security/data/cve/CVE-2026-43214.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Add SRCU protection for reading PDPTRs... | 7.8 | 0.0011 | | | [CVE-2026-43163](https://patchblox.com/security/data/cve/CVE-2026-43163.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved: md/bitmap: fix GPF in write_page caused by resiz... | 8.1 | 0.0009 | | | [CVE-2026-45872](https://patchblox.com/security/data/cve/CVE-2026-45872.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: scsi: smartpqi: Fix memory leak in pqi_report_ph... | 5.5 | 0.0017 | | | [CVE-2025-71304](https://patchblox.com/security/data/cve/CVE-2025-71304.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: smack: /smack/doi: accept previously used values... | 5.5 | 0.0016 | | | [CVE-2026-45847](https://patchblox.com/security/data/cve/CVE-2026-45847.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: net: remove WARN_ON_ONCE when accessing forward... | 5.5 | 0.0016 | | | [CVE-2026-45864](https://patchblox.com/security/data/cve/CVE-2026-45864.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: prevent infinite loops caused by the n... | 5.5 | 0.0016 | | | [CVE-2026-45870](https://patchblox.com/security/data/cve/CVE-2026-45870.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: SUNRPC: auth_gss: fix memory leaks in XDR decodi... | 5.5 | 0.0016 | | | [CVE-2026-45873](https://patchblox.com/security/data/cve/CVE-2026-45873.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: check for partial ove... | 5.5 | 0.0016 | | | [CVE-2026-45915](https://patchblox.com/security/data/cve/CVE-2026-45915.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: fat: avoid parent link count underflow in rmdir... | 5.5 | 0.0016 | | | [CVE-2026-45948](https://patchblox.com/security/data/cve/CVE-2026-45948.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_ext_shift_extents(... | 5.5 | 0.0016 | | | [CVE-2026-45964](https://patchblox.com/security/data/cve/CVE-2026-45964.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: SUNRPC: fix gss_auth kref leak in gss_alloc_msg... | 5.5 | 0.0016 | | | [CVE-2026-43314](https://patchblox.com/security/data/cve/CVE-2026-43314.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: dm: remove fake timeout to avoid leak request S... | 5.5 | 0.0014 | | | [CVE-2025-71265](https://patchblox.com/security/data/cve/CVE-2025-71265.md) | Routine | fs: ntfs3: fix infinite loop in attr_load_runs_range on inconsistent metadata | 5.5 | 0.0013 | | | [CVE-2025-71266](https://patchblox.com/security/data/cve/CVE-2025-71266.md) | Routine | fs: ntfs3: check return value of indx_find to avoid infinite loop | 5.5 | 0.0013 | | | [CVE-2025-71267](https://patchblox.com/security/data/cve/CVE-2025-71267.md) | Routine | fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST | 5.5 | 0.0013 | | | [CVE-2026-43315](https://patchblox.com/security/data/cve/CVE-2026-43315.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Remove a user-triggerable WARN on nes... | 5.5 | 0.0013 | | | [CVE-2026-45919](https://patchblox.com/security/data/cve/CVE-2026-45919.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: sched/rt: Skip currently executing CPU in rto_ne... | 5.5 | 0.0013 | | | [CVE-2026-45968](https://patchblox.com/security/data/cve/CVE-2026-45968.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: cpuidle: Skip governor when only one idle state... | 5.5 | 0.0013 | | | [CVE-2026-45982](https://patchblox.com/security/data/cve/CVE-2026-45982.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: ACPICA: Fix NULL pointer dereference in acpi_ev_... | 5.5 | 0.0013 | | | [CVE-2026-43123](https://patchblox.com/security/data/cve/CVE-2026-43123.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: fbcon: check return value of con2fb_acquire_newi... | 5.5 | 0.0013 | | | [CVE-2026-43124](https://patchblox.com/security/data/cve/CVE-2026-43124.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: pstore: ram_core: fix incorrect success return w... | 5.5 | 0.0013 | | | [CVE-2026-43132](https://patchblox.com/security/data/cve/CVE-2026-43132.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: dm-verity: correctly handle dm_bufio_client_crea... | 5.5 | 0.0013 | | | [CVE-2026-43143](https://patchblox.com/security/data/cve/CVE-2026-43143.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: mfd: core: Add locking around 'mfd_of_node_list'... | 5.5 | 0.0013 | | | [CVE-2026-43152](https://patchblox.com/security/data/cve/CVE-2026-43152.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: HID: hid-pl: handle probe errors Errors in init... | 5.5 | 0.0013 | | | [CVE-2026-43238](https://patchblox.com/security/data/cve/CVE-2026-43238.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: net/sched: act_skbedit: fix divide-by-zero in tc... | 5.5 | 0.0013 | | | [CVE-2026-43261](https://patchblox.com/security/data/cve/CVE-2026-43261.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: arm64: Add support for TSV110 Spectre-BHB mitiga... | 5.5 | 0.0013 | | | [CVE-2026-45974](https://patchblox.com/security/data/cve/CVE-2026-45974.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix invalid leaf access in btrfs_quota_en... | 5.5 | 0.0013 | | | [CVE-2025-71295](https://patchblox.com/security/data/cve/CVE-2025-71295.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: fs/buffer: add alert in try_to_free_buffers() fo... | 5.5 | 0.0012 | | | [CVE-2026-43130](https://patchblox.com/security/data/cve/CVE-2026-43130.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Flush dev-IOTLB only when PCIe devic... | 5.5 | 0.0012 | | | [CVE-2026-43171](https://patchblox.com/security/data/cve/CVE-2026-43171.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: EFI/CPER: don't dump the entire memory region T... | 5.5 | 0.0012 | | | [CVE-2026-43240](https://patchblox.com/security/data/cve/CVE-2026-43240.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: x86/kexec: add a sanity check on previous kernel... | 5.5 | 0.0012 | | | [CVE-2026-43287](https://patchblox.com/security/data/cve/CVE-2026-43287.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: drm: Account property blob allocations to memcg... | 5.5 | 0.0012 | | | [CVE-2026-43289](https://patchblox.com/security/data/cve/CVE-2026-43289.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: kexec: derive purgatory entry from symbol kexec... | 5.5 | 0.0012 | | | [CVE-2026-43313](https://patchblox.com/security/data/cve/CVE-2026-43313.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: Fix NULL-pointer dereference in... | 5.5 | 0.0012 | | | [CVE-2026-45890](https://patchblox.com/security/data/cve/CVE-2026-45890.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration fro... | 5.5 | 0.0012 | | | [CVE-2026-43266](https://patchblox.com/security/data/cve/CVE-2026-43266.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: EFI/CPER: don't go past the ARM processor CPER r... | 5.5 | 0.0012 | | | [CVE-2026-43273](https://patchblox.com/security/data/cve/CVE-2026-43273.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: ceph: supply snapshot context in ceph_zero_parti... | 5.5 | 0.0012 | | | [CVE-2026-43277](https://patchblox.com/security/data/cve/CVE-2026-43277.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: APEI/GHES: ensure that won't go past CPER alloca... | 5.5 | 0.0011 | | | [CVE-2026-45905](https://patchblox.com/security/data/cve/CVE-2026-45905.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: xfrm: fix ip_rt_bug race in icmp_route_lookup re... | 5.5 | 0.0011 | | | [CVE-2026-43147](https://patchblox.com/security/data/cve/CVE-2026-43147.md) | Routine | linux: In the Linux kernel, the following vulnerability has been resolved: Revert "PCI/IOV: Add PCI rescan-remove locking w... | 5.5 | 0.0010 | | --- 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 Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.