Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Fixed packages 158

Vulnerabilities 11

• Critical 9.3
  CVE-2026-46316 Public exploit

  KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry

  In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry vgic_its_invalidate_cache() walks the per-ITS translation cache with xa_for_each() and drops the cache's r…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 9, 2026
• Critical 9.1
  CVE-2025-10263 Public exploit

  Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X…

  Arm Cortex-X925 Cortex-X3 Neoverse V3 Debian Ubuntu Alpine
  Jun 9, 2026
• Critical 9.1
  CVE-2026-46155

  smb/client: fix out-of-bounds read in smb2_compound_op()

  In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in smb2_compound_op() If a server sends a truncated response but a large OutputBufferLength, and terminates the EA list early, check_wsl_eas() returns succe…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 28, 2026
• Critical 9.1
  CVE-2026-46244

  netfilter: nft_inner: Fix IPv6 inner_thoff desync

  In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_inner: Fix IPv6 inner_thoff desync In nft_inner_parse_l2l3(), when processing inner IPv6 packets, ipv6_find_hdr() correctly computes the transport header offset traversing all …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 3, 2026
• High 8.8
  CVE-2026-43112

  fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

  In the Linux kernel, the following vulnerability has been resolved: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath When cifs_sanitize_prepath is called with an empty string or a string containing only delimiters (e.g., "/"), the current logic …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 6, 2026
• High 7.8
  CVE-2026-46116

  xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

  In the Linux kernel, the following vulnerability has been resolved: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete KASAN reproduces a slab-use-after-free in __xfrm_state_delete()'s hlist_del_rcu calls under syzkaller load on linux-6.12.y sta…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 28, 2026
• High 7.8
  CVE-2026-46209

  drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()

  In the Linux kernel, the following vulnerability has been resolved: drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs() drm_gem_fb_init_with_funcs() computes sub-sampled plane dimensions using plain integer division: unsigned…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 28, 2026
• High 7.8
  CVE-2026-46227

  sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL

  In the Linux kernel, the following vulnerability has been resolved: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL The SCTP_SENDALL path in sctp_sendmsg() iterates ep->asocs with list_for_each_entry_safe(), which caches the next ent…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 28, 2026
• High 7.8
  CVE-2026-46259

  procfs: fix missing RCU protection when reading real_parent in do_task_stat()

  In the Linux kernel, the following vulnerability has been resolved: procfs: fix missing RCU protection when reading real_parent in do_task_stat() When reading /proc/[pid]/stat, do_task_stat() accesses task->real_parent without proper RCU protection, which lea…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 3, 2026
• High 7.8
  CVE-2026-46323

  net: gro: don't merge zcopy skbs

  In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skb_gro_receive() can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in particular the SKBFL_MANAGED_FRAG_REFS…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 9, 2026
• Unscored —
  CVE-2026-43276

  net: mana: Fix double destroy_workqueue on service rescan PCI path

  In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix double destroy_workqueue on service rescan PCI path While testing corner cases in the driver, a use-after-free crash was found on the service rescan PCI path. When mana_serv_re…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 6, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2467015
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2467113
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2479832
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482523
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482564
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482636
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482660
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2484451
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2484477
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2486958
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2486982
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36018.json
• report
  https://access.redhat.com/security/cve/CVE-2025-10263
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-10263
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-10263
• article
  https://developer.arm.com/documentation/112137
• report
  https://access.redhat.com/security/cve/CVE-2026-43112
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-43112
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-43112
• article
  https://lore.kernel.org/linux-cve-announce/2026050625-CVE-2026-43112-f37f@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-43276
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-43276
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-43276
• article
  https://lore.kernel.org/linux-cve-announce/2026050612-CVE-2026-43276-907b@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46116
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46116
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46116
• article
  https://lore.kernel.org/linux-cve-announce/2026052814-CVE-2026-46116-73b8@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46155
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46155
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46155
• article
  https://lore.kernel.org/linux-cve-announce/2026052823-CVE-2026-46155-a53c@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46209
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46209
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46209
• article
  https://lore.kernel.org/linux-cve-announce/2026052834-CVE-2026-46209-e4e9@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46227
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46227