High 2026-07-28

Kernel-Rt Security Update — AlmaLinux 8 (ALSA-2026:47010)

AlmaLinux 8

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006) For more details about the security issue(s), including the impact, a CVSS score…

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006)

For more details about the security issue(s), including the impact, a CVSS score…

Type:

security

Severity:

important

Release date:

2026-07-28

Description:

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.  
Security Fix(es):  
  * kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006)
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.

References:

Updated packages listed below:

Architecture	Package	Checksum
x86_64	kernel-rt-debug-devel-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	0070e78c89cc0096dd4d86602f4eda36b5bcd42e781f9e0f23e09f93737ad482
x86_64	kernel-rt-devel-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	06ec0c9e505251578c1a27376247e84d07cc230c3c21a6fae4fbf717f78b99aa
x86_64	kernel-rt-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	0f8c13a0a075936a19041c085af5656c2404e36752b8474cf9b7270a8b79be2a
x86_64	kernel-rt-core-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	26c0e9cbc82a22582897cf746b934a6e807d45158ae8304dbdf8fe014552143a
x86_64	kernel-rt-modules-extra-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	4a928224cc7e422fa2c07b06698d7ad05b39cfea8f997f41e8c28eb4dc3e0871
x86_64	kernel-rt-debug-modules-extra-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	4e2147a525aad14c1e94a2bd8f40d32489fd9c2c7adc850d7a6e38397c005d12
x86_64	kernel-rt-modules-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	68c7bc23e669eee56c3f76e721deca0e13be7f45e054c466d070d638f25ccf45
x86_64	kernel-rt-debug-core-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	8ea3e93384fe3357996fbf7207535d30ac6dbed1d1d3b2126dd5eec515559520
x86_64	kernel-rt-debug-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	c71dc47343ca1cce06d7d335a339d3e41687d2dd04ac43d54ebc585c722260f5
x86_64	kernel-rt-debug-modules-4.18.0-553.148.1.rt7.489.el8_10.x86_64.rpm	de6c45417bbc3e465e41235dad46c1d57f5bf0da021fc2fae70f06b35f5579c2

Notes:

This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.

How to Apply the Fix

Update the affected packages on your server to the patched release, then restart the relevant services.

sudo dnf update

More Information

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