ALAS2023-2026-1514


Amazon Linux 2023 Security Advisory: ALAS2023-2026-1514
Advisory Released Date: 2026-03-27
Advisory Updated Date: 2026-06-16
Severity: Important

Issue Overview:

In the Linux kernel, the following vulnerability has been resolved:

btrfs: fix reservation leak in some error paths when inserting inline extent (CVE-2025-71268)

In the Linux kernel, the following vulnerability has been resolved:

btrfs: do not free data reservation in fallback from inline due to -ENOSPC (CVE-2025-71269)

In the Linux kernel, the following vulnerability has been resolved:

smack: /smack/doi: accept previously used values (CVE-2025-71304)

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Initialize new folios before use (CVE-2025-71311)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/umad: Reject negative data_len in ib_umad_write (CVE-2026-23243)

In the Linux kernel, the following vulnerability has been resolved:

net: gro: fix outer network offset (CVE-2026-23254)

In the Linux kernel, the following vulnerability has been resolved:

net: add proper RCU protection to /proc/net/ptype (CVE-2026-23255)

In the Linux kernel, the following vulnerability has been resolved:

io_uring/rw: free potentially allocated iovec on cache put failure (CVE-2026-23259)

In the Linux kernel, the following vulnerability has been resolved:

regmap: maple: free entry on mas_store_gfp() failure (CVE-2026-23260)

In the Linux kernel, the following vulnerability has been resolved:

io_uring/zcrx: fix page array leak (CVE-2026-23263)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft_set_rbtree: validate open interval overlap (CVE-2026-23333)

In the Linux kernel, the following vulnerability has been resolved:

tracing/dma: Cap dma_map_sg tracepoint arrays to prevent buffer overflow (CVE-2026-23390)

In the Linux kernel, the following vulnerability has been resolved:

smb: client: make use of smbdirect_socket.recv_io.credits.available (CVE-2026-31535)

In the Linux kernel, the following vulnerability has been resolved:

smb: smbdirect: introduce smbdirect_socket.recv_io.credits.available (CVE-2026-31539)

In the Linux kernel, the following vulnerability has been resolved:

driver core: enforce device_lock for driver_match_device() (CVE-2026-31688)

In the Linux kernel, the following vulnerability has been resolved:

ACPI: processor: Update cpuidle driver check in __acpi_processor_start() (CVE-2026-43122)

In the Linux kernel, the following vulnerability has been resolved:

cpufreq: intel_pstate: Fix NULL pointer dereference in update_cpu_qos_request() (CVE-2026-43401)

In the Linux kernel, the following vulnerability has been resolved:

net: remove WARN_ON_ONCE when accessing forward path array (CVE-2026-45847)

In the Linux kernel, the following vulnerability has been resolved:

efi: Fix reservation of unaccepted memory table (CVE-2026-45851)

In the Linux kernel, the following vulnerability has been resolved:

ata: libata-scsi: avoid Non-NCQ command starvation (CVE-2026-45855)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send (CVE-2026-45856)

In the Linux kernel, the following vulnerability has been resolved:

ext4: don't zero the entire extent if EXT4_EXT_DATA_PARTIAL_VALID1 (CVE-2026-45858)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation (CVE-2026-45859)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_conncount: increase the connection clean up limit to 64 (CVE-2026-45860)

In the Linux kernel, the following vulnerability has been resolved:

iommu/vt-d: Flush cache for PASID table before using it (CVE-2026-45862)

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: prevent infinite loops caused by the next valid being the same (CVE-2026-45864)

In the Linux kernel, the following vulnerability has been resolved:

SUNRPC: auth_gss: fix memory leaks in XDR decoding error paths (CVE-2026-45870)

In the Linux kernel, the following vulnerability has been resolved:

scsi: smartpqi: Fix memory leak in pqi_report_phys_luns() (CVE-2026-45872)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets (CVE-2026-45873)

In the Linux kernel, the following vulnerability has been resolved:

arm64/gcs: Fix error handling in arch_set_shadow_stack_status() (CVE-2026-45876)

In the Linux kernel, the following vulnerability has been resolved:

PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails (CVE-2026-45880)

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix bpf_xdp_store_bytes proto for read-only arg (CVE-2026-45886)

In the Linux kernel, the following vulnerability has been resolved:

af_unix: Fix memleak of newsk in unix_stream_connect(). (CVE-2026-45887)

In the Linux kernel, the following vulnerability has been resolved:

md/raid1: fix memory leak in raid1_run() (CVE-2026-45888)

In the Linux kernel, the following vulnerability has been resolved:

mptcp: do not account for OoO in mptcp_rcvbuf_grow() (CVE-2026-45889)

In the Linux kernel, the following vulnerability has been resolved:

xen-netback: reject zero-queue configuration from guest (CVE-2026-45890)

In the Linux kernel, the following vulnerability has been resolved:

iommu/vt-d: Clear Present bit before tearing down PASID entry (CVE-2026-45894)

In the Linux kernel, the following vulnerability has been resolved:

quota: fix livelock between quotactl and freeze_super (CVE-2026-45895)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/iwcm: Fix workqueue list corruption by removing work_list (CVE-2026-45898)

In the Linux kernel, the following vulnerability has been resolved:

ext4: drop extent cache when splitting extent fails (CVE-2026-45899)

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix memory access flags in helper prototypes (CVE-2026-45903)

In the Linux kernel, the following vulnerability has been resolved:

xfrm: fix ip_rt_bug race in icmp_route_lookup reverse path (CVE-2026-45905)

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5e: Fix deadlocks between devlink and netdev instance locks (CVE-2026-45907)

In the Linux kernel, the following vulnerability has been resolved:

ext4: don't cache extent during splitting extent (CVE-2026-45912)

In the Linux kernel, the following vulnerability has been resolved:

net: bridge: mcast: always update mdb_n_entries for vlan contexts (CVE-2026-45913)

In the Linux kernel, the following vulnerability has been resolved:

fat: avoid parent link count underflow in rmdir (CVE-2026-45915)

In the Linux kernel, the following vulnerability has been resolved:

ipvs: do not keep dest_dst if dev is going down (CVE-2026-45917)

In the Linux kernel, the following vulnerability has been resolved:

ovpn: tcp - don't deref NULL sk_socket member after tcp_close() (CVE-2026-45918)

In the Linux kernel, the following vulnerability has been resolved:

sched/rt: Skip currently executing CPU in rto_next_cpu() (CVE-2026-45919)

In the Linux kernel, the following vulnerability has been resolved:

ext4: fix dirtyclusters double decrement on fs shutdown (CVE-2026-45920)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/mlx5: Fix memory leak in GET_DATA_DIRECT_SYSFS_PATH handler (CVE-2026-45922)

In the Linux kernel, the following vulnerability has been resolved:

thermal/of: Fix reference leak in thermal_of_cm_lookup() (CVE-2026-45925)

In the Linux kernel, the following vulnerability has been resolved:

bpf: Require frozen map for calculating map hash (CVE-2026-45927)

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix tcx/netkit detach permissions when prog fd isn't given (CVE-2026-45932)

In the Linux kernel, the following vulnerability has been resolved:

bpf: Preserve id of register in sync_linked_regs() (CVE-2026-45933)

In the Linux kernel, the following vulnerability has been resolved:

btrfs: fix EEXIST abort due to non-consecutive gaps in chunk allocation (CVE-2026-45934)

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot (CVE-2026-45935)

In the Linux kernel, the following vulnerability has been resolved:

ext4: fix e4b bitmap inconsistency reports (CVE-2026-45942)

In the Linux kernel, the following vulnerability has been resolved:

erofs: fix inline data read failure for ztailpacking pclusters (CVE-2026-45943)

In the Linux kernel, the following vulnerability has been resolved:

iommu/vt-d: Clear Present bit before tearing down context entry (CVE-2026-45944)

In the Linux kernel, the following vulnerability has been resolved:

ext4: fix memory leak in ext4_ext_shift_extents() (CVE-2026-45948)

In the Linux kernel, the following vulnerability has been resolved:

hwrng: core - use RCU and work_struct to fix race condition (CVE-2026-45949)

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix a potential use-after-free of BTF object (CVE-2026-45951)

In the Linux kernel, the following vulnerability has been resolved:

md/raid5: fix IO hang with degraded array with llbitmap (CVE-2026-45953)

In the Linux kernel, the following vulnerability has been resolved:

md/md-llbitmap: fix percpu_ref not resurrected on suspend timeout (CVE-2026-45955)

In the Linux kernel, the following vulnerability has been resolved:

rcu: Fix rcu_read_unlock() deadloop due to softirq (CVE-2026-45957)

In the Linux kernel, the following vulnerability has been resolved:

SUNRPC: fix gss_auth kref leak in gss_alloc_msg error path (CVE-2026-45964)

In the Linux kernel, the following vulnerability has been resolved:

cpuidle: Skip governor when only one idle state is available (CVE-2026-45968)

In the Linux kernel, the following vulnerability has been resolved:

bonding: alb: fix UAF in rlb_arp_recv during bond up/down (CVE-2026-45970)

In the Linux kernel, the following vulnerability has been resolved:

bpf: Limit bpf program signature size (CVE-2026-45971)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/mlx5: Fix UMR hang in LAG error state unload (CVE-2026-45973)

In the Linux kernel, the following vulnerability has been resolved:

btrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found (CVE-2026-45974)

In the Linux kernel, the following vulnerability has been resolved:

ACPICA: Fix NULL pointer dereference in acpi_ev_address_space_dispatch() (CVE-2026-45982)

In the Linux kernel, the following vulnerability has been resolved:

nfsd: never defer requests during idmap lookup (CVE-2026-45983)

In the Linux kernel, the following vulnerability has been resolved:

btrfs: fix block_group_tree dirty_list corruption (CVE-2026-46251)

In the Linux kernel, the following vulnerability has been resolved:

pstore/ram: fix buffer overflow in persistent_ram_save_old() (CVE-2026-46253)

In the Linux kernel, the following vulnerability has been resolved:

NFS/localio: prevent direct reclaim recursion into NFS via nfs_writepages (CVE-2026-46256)

In the Linux kernel, the following vulnerability has been resolved:

procfs: fix missing RCU protection when reading real_parent in do_task_stat() (CVE-2026-46259)

In the Linux kernel, the following vulnerability has been resolved:

inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)

In the Linux kernel, the following vulnerability has been resolved:

dm: fix unlocked test for dm_suspended_md (CVE-2026-46327)

In the Linux kernel, the following vulnerability has been resolved:

apparmor: fix rlimit for posix cpu timers (CVE-2026-46328)

In the Linux kernel, the following vulnerability has been resolved:

erofs: handle end of filesystem properly for file-backed mounts (CVE-2026-46329)


Affected Packages:

kernel6.18


Issue Correction:
Run dnf update kernel6.18 --releasever 2023.10.20260325 or dnf update --advisory ALAS2023-2026-1514 --releasever 2023.10.20260325 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation

New Packages:
aarch64:
    kernel6.18-libbpf-static-6.18.15-14.217.amzn2023.aarch64
    bpftool6.18-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel-livepatch-6.18.15-14.217-1.0-0.amzn2023.aarch64
    kernel6.18-libbpf-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-modules-extra-common-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-modules-extra-6.18.15-14.217.amzn2023.aarch64
    perf6.18-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-libbpf-devel-6.18.15-14.217.amzn2023.aarch64
    perf6.18-6.18.15-14.217.amzn2023.aarch64
    bpftool6.18-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-tools-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-tools-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-6.18.15-14.217.amzn2023.aarch64
    python3-perf6.18-debuginfo-6.18.15-14.217.amzn2023.aarch64
    python3-perf6.18-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-libbpf-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-tools-devel-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-debuginfo-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-headers-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-debuginfo-common-aarch64-6.18.15-14.217.amzn2023.aarch64
    kernel6.18-devel-6.18.15-14.217.amzn2023.aarch64

src:
    kernel6.18-6.18.15-14.217.amzn2023.src

x86_64:
    kernel6.18-libbpf-devel-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-modules-extra-common-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-tools-6.18.15-14.217.amzn2023.x86_64
    kernel-livepatch-6.18.15-14.217-1.0-0.amzn2023.x86_64
    kernel6.18-libbpf-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-libbpf-debuginfo-6.18.15-14.217.amzn2023.x86_64
    perf6.18-6.18.15-14.217.amzn2023.x86_64
    bpftool6.18-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-tools-debuginfo-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-modules-extra-6.18.15-14.217.amzn2023.x86_64
    bpftool6.18-debuginfo-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-tools-devel-6.18.15-14.217.amzn2023.x86_64
    perf6.18-debuginfo-6.18.15-14.217.amzn2023.x86_64
    python3-perf6.18-debuginfo-6.18.15-14.217.amzn2023.x86_64
    python3-perf6.18-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-libbpf-static-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-headers-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-debuginfo-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-debuginfo-common-x86_64-6.18.15-14.217.amzn2023.x86_64
    kernel6.18-devel-6.18.15-14.217.amzn2023.x86_64

Changelog:

2026-06-16: CVE-2026-45873 was added to this advisory.

2026-06-16: CVE-2026-45872 was added to this advisory.

2026-06-16: CVE-2026-45933 was added to this advisory.

2026-06-16: CVE-2026-45922 was added to this advisory.

2026-06-16: CVE-2026-45903 was added to this advisory.

2026-06-16: CVE-2026-46327 was added to this advisory.

2026-06-16: CVE-2026-46253 was added to this advisory.

2026-06-16: CVE-2026-45890 was added to this advisory.

2026-06-16: CVE-2026-45918 was added to this advisory.

2026-06-16: CVE-2026-45894 was added to this advisory.

2026-06-16: CVE-2026-45859 was added to this advisory.

2026-06-16: CVE-2026-45915 was added to this advisory.

2026-06-16: CVE-2026-45860 was added to this advisory.

2026-06-16: CVE-2026-45851 was added to this advisory.

2026-06-16: CVE-2026-45974 was added to this advisory.

2026-06-16: CVE-2026-46329 was added to this advisory.

2026-06-16: CVE-2026-45880 was added to this advisory.

2026-06-16: CVE-2026-45932 was added to this advisory.

2026-06-16: CVE-2026-45888 was added to this advisory.

2026-06-16: CVE-2026-45935 was added to this advisory.

2026-06-16: CVE-2026-45973 was added to this advisory.

2026-06-16: CVE-2026-45856 was added to this advisory.

2026-06-16: CVE-2026-45889 was added to this advisory.

2026-06-16: CVE-2026-45895 was added to this advisory.

2026-06-16: CVE-2026-45905 was added to this advisory.

2026-06-16: CVE-2026-45870 was added to this advisory.

2026-06-16: CVE-2026-45948 was added to this advisory.

2026-06-16: CVE-2026-45953 was added to this advisory.

2026-06-16: CVE-2026-45951 was added to this advisory.

2026-06-16: CVE-2026-46259 was added to this advisory.

2026-06-16: CVE-2025-71311 was added to this advisory.

2026-06-16: CVE-2026-45920 was added to this advisory.

2026-06-16: CVE-2026-45964 was added to this advisory.

2026-06-16: CVE-2026-46328 was added to this advisory.

2026-06-16: CVE-2026-45927 was added to this advisory.

2026-06-16: CVE-2026-45898 was added to this advisory.

2026-06-16: CVE-2026-45943 was added to this advisory.

2026-06-16: CVE-2025-71304 was added to this advisory.

2026-06-16: CVE-2026-45907 was added to this advisory.

2026-06-16: CVE-2026-45957 was added to this advisory.

2026-06-16: CVE-2026-45955 was added to this advisory.

2026-06-16: CVE-2026-46251 was added to this advisory.

2026-06-16: CVE-2026-46266 was added to this advisory.

2026-06-16: CVE-2026-46256 was added to this advisory.

2026-06-16: CVE-2026-45886 was added to this advisory.

2026-06-16: CVE-2026-45917 was added to this advisory.

2026-06-16: CVE-2026-45887 was added to this advisory.

2026-06-16: CVE-2026-45934 was added to this advisory.

2026-06-16: CVE-2026-45925 was added to this advisory.

2026-06-16: CVE-2026-45876 was added to this advisory.

2026-06-16: CVE-2026-45949 was added to this advisory.

2026-06-16: CVE-2026-45858 was added to this advisory.

2026-06-16: CVE-2026-45942 was added to this advisory.

2026-06-16: CVE-2026-45982 was added to this advisory.

2026-06-16: CVE-2026-45913 was added to this advisory.

2026-06-16: CVE-2026-45971 was added to this advisory.

2026-06-16: CVE-2026-45864 was added to this advisory.

2026-06-16: CVE-2026-45912 was added to this advisory.

2026-06-16: CVE-2026-45847 was added to this advisory.

2026-06-16: CVE-2026-45970 was added to this advisory.

2026-06-16: CVE-2026-45968 was added to this advisory.

2026-06-16: CVE-2026-45862 was added to this advisory.

2026-06-16: CVE-2026-45855 was added to this advisory.

2026-06-16: CVE-2026-45899 was added to this advisory.

2026-06-16: CVE-2026-45944 was added to this advisory.

2026-06-16: CVE-2026-45919 was added to this advisory.

2026-06-16: CVE-2026-45983 was added to this advisory.