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Red Hat Security Advisory

RHSA-2026:81552

kernel security update

Released 2026-10-13 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 13 records

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: openvswitch: fix GSO userspace truncation underflow OVS_ACTION_ATTR_TRUNC currently stores a delta from the original skb length in OVS_CB(skb)->cutlen.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00552 Published 2026-08-10 Partial fix · 5.10.265, 5.15.216 +6 CWE-191
TI-2026-50597 CVE-2026-72318 · GHSA-4cv4-fc78-7hch

cifs: validate DFS referral string offsets

Priority MEDIUM 47

In the Linux kernel, the following vulnerability has been resolved: cifs: validate DFS referral string offsets parse_dfs_referrals() validates that the response header and referral array fit in the received buffer, but e…

CVSS 3.1CRITICAL 9.4 Network No auth No interaction EPSS 0.00586 Published 2026-08-15 Partial fix · 6.1.178, 6.6.145 +4
Priority MEDIUM 44

In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: Synchronize timeout work during SQ teardown nvmet_auth_sq_free() cancels auth_expired_work with cancel_delayed_work().

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00803 Published 2026-09-16 Partial fix · 6.1.188, 6.6.157 +4
Priority LOW 37

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Add TLB flush after MES queue eviction/suspension MES (Micro Engine Scheduler) does not perform heavy-weight TLB invalidation after unmappin…

CVSS 3.1HIGH 8.8 Local Low privileges No interaction EPSS 0.00175 Published 2026-09-16 Partial fix · 6.1.191, 6.6.160 +4
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid() The vm pointer returned from amdgpu_vm_get_vm_from_pasid() is only valid while the loc…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0013 Published 2026-08-10 Partial fix · 6.2, 6.7 +4 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: set new_stream to NULL after release In dm_update_crtc_state(), the skip_modeset path releases new_stream via dc_stream_release() but d…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00126 Published 2026-08-10 Partial fix · 5.10.271, 5.15.222 +6 CWE-415
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: macsec: fix replay protection at XPN lower-PN wrap In macsec_post_decrypt(), when pn is U32_MAX, pn + 1 overflows u32 to 0 and the first branch never fi…

CVSS 3.1HIGH 8.1 Adjacent network No auth No interaction EPSS 0.00347 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-190
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: media: cx231xx: reject geometry changes while the VBI queue is busy vidioc_s_fmt_vid_cap() and vidioc_s_std() change the device-wide dev->width / dev->n…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00169 Published 2026-09-16 Partial fix · 5.10.270, 5.15.221 +6
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: drm/xe/uapi: Reject coh_none PAT index for CPU cached memory in madvise Add validation in xe_vm_madvise_ioctl() to reject PAT indices with XE_COH_NONE c…

CVSS 3.1HIGH 7.0 Local Low privileges No interaction EPSS 0.00125 Published 2026-06-08 Partial fix · 6.18.32, 7.0.9 +1 CWE-401
Priority LOW 22

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: use check_add_overflow for shader size+offset bound vmw_shader_define() validates the user-supplied shader window against its backing buffer…

CVSS — EPSS 0.00168 Published 2026-09-04 Partial fix · 6.6.151, 6.12.103 +3
Priority LOW 22

In the Linux kernel, the following vulnerability has been resolved: drm/dp/mst: fix buffer overflows in sideband chunk accumulation drm_dp_sideband_append_payload() has three related bugs when processing device-provided…

CVSS — EPSS 0.00238 Published 2026-08-10 Partial fix · 5.10.266, 5.15.217 +6
Priority LOW 22

In the Linux kernel, the following vulnerability has been resolved: bpf: Support for hardening against JIT spraying The BPF JIT allocator packs many small programs into larger executable allocations and reuses space with…

CVSS — EPSS 0.00189 Published 2026-07-25 Partial fix · 6.1.183, 6.6.145 +4
Priority LOW 22

In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Enable IBPB flush on BPF JIT allocation Enable hardening against JIT spraying when Spectre-v2 mitigations are in use.

CVSS — EPSS 0.00231 Published 2026-07-25 Partial fix · 6.1.183, 6.6.145 +4