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ALSA-2026:36018 — Important: kernel security, bug fix, and enhancement update

Affected: AlmaLinux:9: kernel, AlmaLinux:9: kernel-64k, AlmaLinux:9: kernel-64k-core, AlmaLinux:9: kernel-64k-debug, AlmaLinux:9: kernel-64k-debug-core, AlmaLinux:9: kernel-64k-debug-devel, AlmaLinux:9: kernel-64k-debug-devel-matched, AlmaLinux:9: kernel-64k-debug-modules, AlmaLinux:9: kernel-64k-debug-modules-core, AlmaLinux:9: kernel-64k-debug-modules-extra and 64 more

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath (CVE-2026-43112) * kernel: net: mana: Fix double destroy_workqueue on service rescan PCI path (CVE-2026-43276) * kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs (CVE-2026-46323) * kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (CVE-2026-46116) * kernel: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL (CVE-2026-46227) * kernel: drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs() (CVE-2026-46209) * kernel: smb/client: fix out-of-bounds read in smb2_compound_op() (CVE-2026-46155) * kernel: netfilter: nft_inner: Fix IPv6 inner_thoff desync (CVE-2026-46244) * kernel: procfs: fix missing RCU protection when reading real_parent in do_task_stat() (CVE-2026-46259) * kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources (CVE-2025-10263) * kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry (CVE-2026-46316)

Bug Fix(es) and Enhancement(s):

* WARNING at drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c:1585 r535_gsp_fini+0x2fb/0x310 [nouveau] [almalinux-9.8.z] (JIRA:AlmaLinux-160966)

For more details about the security issue(s), including the impact, a…

bdu:2026-11326

BELL-CVE-2026-46155

Affected: Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2026-avi-0731 — De multiples vulnérabilités ont été découvertes dans les produits Microsoft. Certaines d'entre elles permettent à un at…

certfr-2026-avi-0731

EUVD-2026-348025

fkie_cve-2026-46155

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 success without validating that the entire OutputBufferLength fits within iov_len.

Then smb2_compound_op() does: memcpy(idata->wsl.eas, data[0], size[0]);

Where size[0] is OutputBufferLength. If iov_len is smaller than size[0], memcpy can read beyond the end of the rsp_iov allocation and leak adjacent kernel heap memory.

GHSA-r5mc-mc43-5gch

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

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

Then smb2_compound_op() does: memcpy(idata->wsl.eas, data[0], size[0]);

Where size[0] is OutputBufferLength. If iov_len is smaller than size[0], memcpy can read beyond the end of the rsp_iov allocation and leak adjacent kernel heap memory.

msrc_CVE-2026-46155 — smb/client: fix out-of-bounds read in smb2_compound_op()

msrc_CVE-2026-46155

openSUSE-SU-2026:10954-1 — kernel-devel-7.0.11-1.1 on GA media

kernel-devel-7.0.11-1.1 on GA media

RHSA-2026:64767 — Red Hat Security Advisory: kernel security, bug fix, and enhancement update

kernel: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock() kernel: netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers kernel: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels kernel: RDMA/mana: Validate rx_hash_key_len kernel: smb/client: fix out-of-bounds read in smb2_compound_op() kernel: ipv6: fix possible UAF in icmpv6_rcv() kernel: crypto: ccp - copy IV using skcipher ivsize kernel: scsi: target: iscsi: Validate CHAP_R length before base64 decode kernel: crypto: qat - validate RSA CRT component lengths

RLSA-2026:36018 — Important: kernel security, bug fix, and enhancement update

Affected: Rocky Linux:9: kernel

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath (CVE-2026-43112)

* kernel: net: mana: Fix double destroy_workqueue on service rescan PCI path (CVE-2026-43276)

* kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs (CVE-2026-46323)

* kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (CVE-2026-46116)

* kernel: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL (CVE-2026-46227)

* kernel: drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs() (CVE-2026-46209)

* kernel: smb/client: fix out-of-bounds read in smb2_compound_op() (CVE-2026-46155)

* kernel: netfilter: nft_inner: Fix IPv6 inner_thoff desync (CVE-2026-46244)

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

* kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources (CVE-2025-10263)

* kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry (CVE-2026-46316)

Bug Fix(es) and Enhancement(s):

* WARNING at drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c:1585 r535_gsp_fini+0x2fb/0x310 [nouveau] [rhel-9.8.z] (JIRA:Rocky Linux-160966)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgme…

UBUNTU-CVE-2026-46155

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 123 more

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 success without validating that the entire OutputBufferLength fits within iov_len. Then smb2_compound_op() does: memcpy(idata->wsl.eas, data[0], size[0]); Where size[0] is OutputBufferLength. If iov_len is smaller than size[0], memcpy can read beyond the end of the rsp_iov allocation and leak adjacent kernel heap memory.

WID-SEC-W-2026-1700 — Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder andere nicht näher spezifizierte Auswirkungen zu erzielen.