Summary
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: md/bitmap: fix GPF in write_page caused by resize race (CVE-2026-43163)
* kernel: rtmutex: Use waiter::task instead of current in remove_waiter() (CVE-2026-43499)
* kernel: futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock (CVE-2026-53166)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 75
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 10 | kernel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-debug | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-debug-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-debug-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-debug-devel-matched | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-debug-modules | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-debug-modules-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-debug-modules-extra | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-devel-matched | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-modules | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-modules-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-64k-modules-extra | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-abi-stablelists | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-cross-headers | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-debug | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-debug-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-debug-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-debug-devel-matched | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-debug-modules | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-debug-modules-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-debug-modules-extra | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-debug-uki-virt | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-devel-matched | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-doc | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-headers | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-modules | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-modules-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-modules-extra | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-modules-extra-matched | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-debug | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-debug-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-debug-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-debug-modules | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-debug-modules-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-debug-modules-extra | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-modules | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-modules-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-64k-modules-extra | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-debug | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-debug-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-debug-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-debug-modules | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-debug-modules-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-debug-modules-extra | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-modules | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-modules-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-rt-modules-extra | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-tools | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-tools-libs | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-tools-libs-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-uki-virt | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-uki-virt-addons | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-zfcpdump | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-zfcpdump-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-zfcpdump-devel | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-zfcpdump-devel-matched | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-zfcpdump-modules | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-zfcpdump-modules-core | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | kernel-zfcpdump-modules-extra | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | libperf | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | perf | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | python3-perf | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | rtla | 6.12.0-211.33.1.el10_2 |
| AlmaLinux · 10 | rv | 6.12.0-211.33.1.el10_2 |
Vulnerabilities 3
-
High 7.8CVE-2026-43499 Public exploit
rtmutex: Use waiter::task instead of current in remove_waiter()
In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in remove_waiter() remove_waiter() is used by the slowlock paths, but it is also used for proxy-lock rollback in rt_mutex_start_proxy_lock() when …
-
Unscored —
md/bitmap: fix GPF in write_page caused by resize race
In the Linux kernel, the following vulnerability has been resolved: md/bitmap: fix GPF in write_page caused by resize race A General Protection Fault occurs in write_page() during array resize: RIP: 0010:write_page+0x22b/0x3c0 [md_mod] This is a use-after-fre…
-
Unscored —CVE-2026-53166 Rejected
This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
References
-
report
https://access.redhat.com/security/cve/CVE-2026-43163
-
report
https://access.redhat.com/security/cve/CVE-2026-43499
-
report
https://access.redhat.com/security/cve/CVE-2026-53166
-
report
https://bugzilla.redhat.com/2467059
-
report
https://bugzilla.redhat.com/2480453
-
report
https://bugzilla.redhat.com/2492805
-
advisory
https://errata.almalinux.org/10/ALSA-2026-38492.html