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ALSA-2026:57252 — 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: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CVE-2026-43233) * kernel: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CVE-2026-43206) * kernel: drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4 (CVE-2026-43237) * kernel: udf: fix partition descriptor append bookkeeping (CVE-2026-45991) * kernel: drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 (CVE-2026-45878) * kernel: ip6_gre: Use cached t->net in ip6erspan_changelink() (CVE-2026-46120) * kernel: sched/psi: fix race between file release and pressure write (CVE-2026-52991) * kernel: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 (CVE-2026-53143) * kernel: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CVE-2026-53136) * kernel: mm/huge_memory: update file PMD counter before folio_put() (CVE-2026-53189) * kernel: drm/amd/display: Use krealloc_array() in dal_vector_reserve() (CVE-2026-53329) * kernel: drm/i915/gem: Fix phys BO pread/pwrite with offset (CVE-2026-53356) * kernel: drm/amdgpu: zero-initialize GART table on allocation (CVE-2026-53374) * kernel: drm/i915: Fix potential UAF in TTM object purge (CVE-2026-63884) * kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007) * kernel: memfd: deny…

bdu:2026-14220

BELL-CVE-2026-46120

Affected: Alpaquita:23: linux-lts, 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-2026-348012

fkie_cve-2026-46120

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

ip6_gre: Use cached t->net in ip6erspan_changelink().

After commit 5e72ce3e3980 ("net: ipv6: Use link netns in newlink() of rtnl_link_ops"), ip6erspan_newlink() correctly resolves the per-netns ip6gre hash via link_net. ip6erspan_changelink() was not converted in that series and still uses dev_net(dev), which diverges from the device's creation netns after IFLA_NET_NS_FD migration.

This re-inserts the tunnel into the wrong per-netns hash. The original netns keeps a stale entry. When that netns is later destroyed, ip6gre_exit_rtnl_net() walks the stale entry, producing a slab-use-after-free reported by KASAN, followed by a kernel BUG at net/core/dev.c (LIST_POISON1) in unregister_netdevice_many_notify().

Reachable from an unprivileged user namespace (unshare --user --map-root-user --net).

ip6gre_changelink() earlier in the same file already uses the cached t->net; only ip6erspan_changelink() has the wrong shape.

GHSA-92hv-jcvf-rqg6

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

ip6_gre: Use cached t->net in ip6erspan_changelink().

Reachable from an unprivileged user namespace (unshare --user --map-root-user --net).

ip6gre_changelink() earlier in the same file already uses the cached t->net; only ip6erspan_changelink() has the wrong shape.

msrc_CVE-2026-46120 — ip6_gre: Use cached t->net in ip6erspan_changelink().

msrc_CVE-2026-46120

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-2026:57254 — Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

kernel: net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() kernel: ip6_gre: Use cached t->net in ip6erspan_changelink() kernel: sched/psi: fix race between file release and pressure write kernel: mm/huge_memory: update file PMD counter before folio_put() kernel: scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf kernel: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot kernel: smb: client: mask server-provided mode to 07777 in modefromsid kernel: smb/client: handle overlapping allocated ranges in fallocate

RLSA-2026:57252 — 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: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CVE-2026-43233)

* kernel: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CVE-2026-43206)

* kernel: drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4 (CVE-2026-43237)

* kernel: udf: fix partition descriptor append bookkeeping (CVE-2026-45991)

* kernel: drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 (CVE-2026-45878)

* kernel: ip6_gre: Use cached t->net in ip6erspan_changelink() (CVE-2026-46120)

* kernel: sched/psi: fix race between file release and pressure write (CVE-2026-52991)

* kernel: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 (CVE-2026-53143)

* kernel: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CVE-2026-53136)

* kernel: mm/huge_memory: update file PMD counter before folio_put() (CVE-2026-53189)

* kernel: drm/amd/display: Use krealloc_array() in dal_vector_reserve() (CVE-2026-53329)

* kernel: drm/i915/gem: Fix phys BO pread/pwrite with offset (CVE-2026-53356)

* kernel: drm/amdgpu: zero-initialize GART table on allocation (CVE-2026-53374)

* kernel: drm/i915: Fix potential UAF in TTM object purge (CVE-2026-63884)

* kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007)

* kernel: memfd: deny writeable mappings wh…

SUSE-SU-2026:22433-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2026-46120

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:Pro:18.04:LTS: linux-aws-5.4, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:Pro:18.04:LTS: linux-azure-5.4, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3 and 226 more

In the Linux kernel, the following vulnerability has been resolved: ip6_gre: Use cached t->net in ip6erspan_changelink(). After commit 5e72ce3e3980 ("net: ipv6: Use link netns in newlink() of rtnl_link_ops"), ip6erspan_newlink() correctly resolves the per-netns ip6gre hash via link_net. ip6erspan_changelink() was not converted in that series and still uses dev_net(dev), which diverges from the device's creation netns after IFLA_NET_NS_FD migration. This re-inserts the tunnel into the wrong per-netns hash. The original netns keeps a stale entry. When that netns is later destroyed, ip6gre_exit_rtnl_net() walks the stale entry, producing a slab-use-after-free reported by KASAN, followed by a kernel BUG at net/core/dev.c (LIST_POISON1) in unregister_netdevice_many_notify(). Reachable from an unprivileged user namespace (unshare --user --map-root-user --net). ip6gre_changelink() earlier in the same file already uses the cached t->net; only ip6erspan_changelink() has the wrong shape.

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.