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

Fixed packages 124

Vulnerabilities 12

• Critical 9.8
  CVE-2026-53006

  ipv6: fix possible UAF in icmpv6_rcv()

  In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6_rcv() Caching saddr and daddr before pskb_pull() is problematic since skb->head can change. Remove these temporary variables: - We only access &ipv6_hdr(skb)-…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 24, 2026
• Critical 9.8
  CVE-2026-63886

  scsi: target: iscsi: Validate CHAP_R length before base64 decode

  In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Validate CHAP_R length before base64 decode chap_server_compute_hash() allocates client_digest as kzalloc(chap->digest_size) and then, for BASE64-encoded responses, passe…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• Critical 9.4
  CVE-2026-43114

  netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry

  In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry New test case fails unexpectedly when avx2 matching functions are used. The test first loads a ranomly generated pipa…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 6, 2026
• High 8.8
  CVE-2026-46056

  Bluetooth: hci_event: fix potential UAF in SSP passkey handlers

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers hci_conn lookup and field access must be covered by hdev lock in hci_user_passkey_notify_evt() and hci_keypress_notify_evt(), o…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 27, 2026
• High 8.1
  CVE-2026-46099

  net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels

  In the Linux kernel, the following vulnerability has been resolved: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels seg6_input_core() and rpl_input() call ip6_route_input() which sets a NOREF dst on the skb, then pass it to dst_cache_set_ip6() invoking…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 27, 2026
• High 7.8
  CVE-2026-46117

  RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss()

  In the Linux kernel, the following vulnerability has been resolved: RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss() Sashiko points out that the user can specify WQs sharing the same CQ as a part of the uAPI and this will trigger the WA…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 28, 2026
• High 7.8
  CVE-2026-46145

  RDMA/mana: Validate rx_hash_key_len

  In the Linux kernel, the following vulnerability has been resolved: RDMA/mana: Validate rx_hash_key_len Sashiko points out that rx_hash_key_len comes from a uAPI structure and is blindly passed to memcpy, allowing the userspace to trash kernel memory. Bounds …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 28, 2026
• High 7.8
  CVE-2026-53009

  ice: fix double-free of tx_buf skb

  In the Linux kernel, the following vulnerability has been resolved: ice: fix double-free of tx_buf skb If ice_tso() or ice_tx_csum() fail, the error path in ice_xmit_frame_ring() frees the skb, but the 'first' tx_buf still points to it and is marked as valid …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 24, 2026
• High 7.8
  CVE-2026-64304

  crypto: qat - validate RSA CRT component lengths

  In the Linux kernel, the following vulnerability has been resolved: crypto: qat - validate RSA CRT component lengths The generic RSA key parser (rsa_helper.c) bounds each CRT component (p, q, dp, dq, qinv) by the modulus size n_sz, but qat_rsa_setkey_crt() al…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 25, 2026
• High 7.0
  CVE-2026-45998

  rxrpc: Fix potential UAF after skb_unshare() failure

  In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix potential UAF after skb_unshare() failure If skb_unshare() fails to unshare a packet due to allocation failure in rxrpc_input_packet(), the skb pointer in the parent (rxrpc_io_thre…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 27, 2026
• Medium 6.8
  CVE-2026-53196

  USB: serial: io_ti: fix heap overflow in get_manuf_info()

  In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_ti: fix heap overflow in get_manuf_info() get_manuf_info() reads le16_to_cpu(rom_desc->Size) bytes from the device I2C EEPROM into a buffer allocated with kmalloc_obj(), which…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 25, 2026
• Unscored —
  CVE-2025-38403

  vsock/vmci: Clear the vmci transport packet properly when initializing it

  In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: Clear the vmci transport packet properly when initializing it In vmci_transport_packet_init memset the vmci_transport_packet before populating the fields to avoid any uninitialise…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jul 25, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2383421
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2466994
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2481972
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482024
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482181
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482576
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482581
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2492363
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2492390
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2492750
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2502329
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2507119
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_65712.json
• report
  https://access.redhat.com/security/cve/CVE-2025-38403
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38403
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38403
• article
  https://lore.kernel.org/linux-cve-announce/2025072504-CVE-2025-38403-0da0@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-43114
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-43114
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-43114
• article
  https://lore.kernel.org/linux-cve-announce/2026050626-CVE-2026-43114-5deb@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-45998
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-45998
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-45998
• article
  https://lore.kernel.org/linux-cve-announce/2026052741-CVE-2026-45998-6b5d@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46056
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46056
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46056
• article
  https://lore.kernel.org/linux-cve-announce/2026052754-CVE-2026-46056-0ff1@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46099
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46099
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46099
• article
  https://lore.kernel.org/linux-cve-announce/2026052704-CVE-2026-46099-2a55@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46117
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46117
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46117
• article
  https://lore.kernel.org/linux-cve-announce/2026052814-CVE-2026-46117-a93b@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46145