Linux · 
Red Hat · Security advisory · August 21, 2026
Red Hat · Security advisory · August 21, 2026RHSA-2026:57251: kernel security update
RHSA-2026:57251, released August 21, 2026, fixes 16 CVEs in kernel (version 6.12.0-211.49.1.el10_2). None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
16
2 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0053
44th percentile
Priority of the 16 CVEs
Patch now 0
Urgent 2
High 14
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| kernel | RHEL 10 | 6.12.0-211.49.1.el10_2 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-52991 | sched/psi: fix race between file release and pressure write | 9.8 | 0.0015 | None reported |
| Urgent | CVE-2026-53374 | drm/amdgpu: zero-initialize GART table on allocation | 9.8 | 0.0013 | None reported |
| High | CVE-2026-46185 | smb/client: fix out-of-bounds read in symlink_data() | 9.1 | 0.0053 | None reported |
| High | CVE-2026-68388 | smb/client: handle overlapping allocated ranges in fallocate | 9.8 | 0.0051 | None reported |
| High | CVE-2026-64560 | linux: In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Prevent UAF caused by non-lead... | 7.8 | 0.0050 | None reported |
| High | CVE-2026-64379 | smb: client: mask server-provided mode to 07777 in modefromsid | 7.8 | 0.0031 | None reported |
| High | CVE-2026-45878 | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: n... | 7.8 | 0.0021 | None reported |
| High | CVE-2026-63884 | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: m... | 7.8 | 0.0018 | None reported |
| High | CVE-2026-64219 | drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async | 7.8 | 0.0017 | None reported |
| High | CVE-2026-53143 | drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 | 7.8 | 0.0015 | None reported |
| High | CVE-2026-53329 | drm/amd/display: Use krealloc_array() in dal_vector_reserve() | 7.8 | 0.0015 | None reported |
| High | CVE-2026-63879 | drm/amdgpu: fix amdgpu_hmm_range_get_pages | 7.8 | 0.0014 | None reported |
| High | CVE-2026-43206 | kernel-zfcpdump-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: m... | 7.8 | 0.0014 | None reported |
| High | CVE-2026-53356 | drm/i915/gem: Fix phys BO pread/pwrite with offset | 7.8 | 0.0013 | None reported |
| High | CVE-2026-53136 | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: m... | 7.8 | 0.0013 | None reported |
| High | CVE-2026-43237 | drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4 | 7.8 | 0.0012 | None reported |
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