Red Hat Security AdvisoryRHSA-2026:45116
kernel-rt security update
Released 2026-07-24 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.147.1.rt7.488.el8_10, kernel-rt-core-4.18.0-553.147.1.rt7.488.el8_10, kernel-rt-debug-4.18.0-553.147.1.rt7.488.el8_10 +9
- Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.147.1.rt7.488.el8_10, kernel-rt-core-4.18.0-553.147.1.rt7.488.el8_10, kernel-rt-debug-4.18.0-553.147.1.rt7.488.el8_10 +7
Fixes 4 records
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: tipc: fix double-free in tipc_buf_append() tipc_msg_validate() can potentially reallocate the skb it is validating, freeing the old one.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00404 · Published 2026-06-24 · Partial fix · 5.10.258, 5.15.209 +6 CWE-763
Priority MEDIUM 40
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Check for invalid/obsolete root *after* making MMU pages available Check for a "stale" page fault, i.e.
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.00273 · Published 2026-08-04 · Partial fix · 5.15.218, 6.1.183 +5 CWE-362
Priority LOW 34
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O When completing emulation of instruction that generated a userspace exit for I/O,…
CVSS 3.1HIGH 7.9· Local · Low privileges · No interaction · EPSS 0.0017 · Published 2025-10-28 · Partial fix · 5.4.301, 5.10.246 +7
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to region_count overflow The local variable region_count in create_log_context() is declared as unsigned int (32-bit…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00141 · Published 2026-06-24 · Partial fix · 5.10.258, 5.15.209 +6 CWE-787
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