Red Hat Product Errata RHBA-2026:59371 - Bug Fix Advisory
Issued:
2026-08-25
Updated:
2026-08-25

RHBA-2026:59371 - Bug Fix Advisory

Synopsis

linuxptp bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Red Hat Lightspeed patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for linuxptp is now available for Red Hat Enterprise Linux 10.

Description

The linuxptp packages provide Precision Time Protocol (PTP) implementation for Linux according to IEEE standard 1588 for Linux. The dual design goals are to provide a robust implementation of the standard and to use the most relevant and modern Application Programming Interfaces (API) offered by the Linux kernel.

Bug Fix(es) and Enhancement(s):

  • linuxptp: phc2sys permanently stops synchronizing after temporary loss of connection to ptp4l (JIRA:RHEL-185752)
  • linuxptp phc2sys service doesn't allow clocks specified by interface name [rhel-10.2.z] (JIRA:RHEL-191400)
  • ptp4l consuming CPU when link is down [rhel-10.2.z] (JIRA:RHEL-191401)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 10 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 10 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 s390x
  • Red Hat Enterprise Linux for Power, little endian 10 ppc64le
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 ppc64le
  • Red Hat Enterprise Linux for ARM 64 10 aarch64
  • Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 aarch64
  • Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 aarch64
  • Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 s390x
  • Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 ppc64le
  • Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 x86_64
  • Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 aarch64
  • Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 ppc64le
  • Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 s390x

Fixes

(none)

CVEs

(none)

References

(none)

Red Hat Enterprise Linux for x86_64 10

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
x86_64
linuxptp-4.4-8.el10_2.1.x86_64.rpm SHA-256: c37565e9acea5224e8025192596545214dd401b3f07adf1ee040e1a6be962639
linuxptp-debuginfo-4.4-8.el10_2.1.x86_64.rpm SHA-256: 8873d8d10f2718b0c30ca1dfa65b66e7172f1d0f0005453606ec2d5039af5446
linuxptp-debugsource-4.4-8.el10_2.1.x86_64.rpm SHA-256: d3a1f399d908e9d121cba0dd23ed12557a6051b63bb737ea89aba104b013185a
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
x86_64
linuxptp-4.4-8.el10_2.1.x86_64.rpm SHA-256: c37565e9acea5224e8025192596545214dd401b3f07adf1ee040e1a6be962639
linuxptp-debuginfo-4.4-8.el10_2.1.x86_64.rpm SHA-256: 8873d8d10f2718b0c30ca1dfa65b66e7172f1d0f0005453606ec2d5039af5446
linuxptp-debugsource-4.4-8.el10_2.1.x86_64.rpm SHA-256: d3a1f399d908e9d121cba0dd23ed12557a6051b63bb737ea89aba104b013185a
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for IBM z Systems 10

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
s390x
linuxptp-4.4-8.el10_2.1.s390x.rpm SHA-256: e5569a4c7bc6d83532444cc1be5f72a50e5db1bd9b9e5820e96b1a31c5db8259
linuxptp-debuginfo-4.4-8.el10_2.1.s390x.rpm SHA-256: ef7b40ffdd2a5586f26d6beb5e3b75c847a8c9c274f7bdb360d885b13a3cb1f1
linuxptp-debugsource-4.4-8.el10_2.1.s390x.rpm SHA-256: e581f84f8251a3fc5d972f6622177113b5dce9cf2b5ffcadd1659f70a59cf561
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
s390x
linuxptp-4.4-8.el10_2.1.s390x.rpm SHA-256: e5569a4c7bc6d83532444cc1be5f72a50e5db1bd9b9e5820e96b1a31c5db8259
linuxptp-debuginfo-4.4-8.el10_2.1.s390x.rpm SHA-256: ef7b40ffdd2a5586f26d6beb5e3b75c847a8c9c274f7bdb360d885b13a3cb1f1
linuxptp-debugsource-4.4-8.el10_2.1.s390x.rpm SHA-256: e581f84f8251a3fc5d972f6622177113b5dce9cf2b5ffcadd1659f70a59cf561
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for Power, little endian 10

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
ppc64le
linuxptp-4.4-8.el10_2.1.ppc64le.rpm SHA-256: e164adb8e14fed80dd01ce21ada4dbd1b0820f5b4065c8b84f7c78db4eda87fd
linuxptp-debuginfo-4.4-8.el10_2.1.ppc64le.rpm SHA-256: 0da0059873101b8448f2068558babd6ea837c6ee1b4ffcf598ca073805a02c7d
linuxptp-debugsource-4.4-8.el10_2.1.ppc64le.rpm SHA-256: efadcd5fe6a29498c9638a2f9e2367e36b4eed369e3f6ba0a3e35690d34fe01b
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
ppc64le
linuxptp-4.4-8.el10_2.1.ppc64le.rpm SHA-256: e164adb8e14fed80dd01ce21ada4dbd1b0820f5b4065c8b84f7c78db4eda87fd
linuxptp-debuginfo-4.4-8.el10_2.1.ppc64le.rpm SHA-256: 0da0059873101b8448f2068558babd6ea837c6ee1b4ffcf598ca073805a02c7d
linuxptp-debugsource-4.4-8.el10_2.1.ppc64le.rpm SHA-256: efadcd5fe6a29498c9638a2f9e2367e36b4eed369e3f6ba0a3e35690d34fe01b
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for ARM 64 10

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
aarch64
linuxptp-4.4-8.el10_2.1.aarch64.rpm SHA-256: a6609955c4f6adc1822ec1243a10c7e88d58b52c2dda069eb84492560023e2f9
linuxptp-debuginfo-4.4-8.el10_2.1.aarch64.rpm SHA-256: 6dd4a060f63af953a18dcd1fa3d720af35087f58e4867a4d54ad04501b4bcdad
linuxptp-debugsource-4.4-8.el10_2.1.aarch64.rpm SHA-256: 1af0cc10a971d2e811467a0313776f7c4832bfc919e60d2fcd042e18db8d7df9
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
aarch64
linuxptp-4.4-8.el10_2.1.aarch64.rpm SHA-256: a6609955c4f6adc1822ec1243a10c7e88d58b52c2dda069eb84492560023e2f9
linuxptp-debuginfo-4.4-8.el10_2.1.aarch64.rpm SHA-256: 6dd4a060f63af953a18dcd1fa3d720af35087f58e4867a4d54ad04501b4bcdad
linuxptp-debugsource-4.4-8.el10_2.1.aarch64.rpm SHA-256: 1af0cc10a971d2e811467a0313776f7c4832bfc919e60d2fcd042e18db8d7df9
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
aarch64
linuxptp-4.4-8.el10_2.1.aarch64.rpm SHA-256: a6609955c4f6adc1822ec1243a10c7e88d58b52c2dda069eb84492560023e2f9
linuxptp-debuginfo-4.4-8.el10_2.1.aarch64.rpm SHA-256: 6dd4a060f63af953a18dcd1fa3d720af35087f58e4867a4d54ad04501b4bcdad
linuxptp-debugsource-4.4-8.el10_2.1.aarch64.rpm SHA-256: 1af0cc10a971d2e811467a0313776f7c4832bfc919e60d2fcd042e18db8d7df9
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
s390x
linuxptp-4.4-8.el10_2.1.s390x.rpm SHA-256: e5569a4c7bc6d83532444cc1be5f72a50e5db1bd9b9e5820e96b1a31c5db8259
linuxptp-debuginfo-4.4-8.el10_2.1.s390x.rpm SHA-256: ef7b40ffdd2a5586f26d6beb5e3b75c847a8c9c274f7bdb360d885b13a3cb1f1
linuxptp-debugsource-4.4-8.el10_2.1.s390x.rpm SHA-256: e581f84f8251a3fc5d972f6622177113b5dce9cf2b5ffcadd1659f70a59cf561
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
ppc64le
linuxptp-4.4-8.el10_2.1.ppc64le.rpm SHA-256: e164adb8e14fed80dd01ce21ada4dbd1b0820f5b4065c8b84f7c78db4eda87fd
linuxptp-debuginfo-4.4-8.el10_2.1.ppc64le.rpm SHA-256: 0da0059873101b8448f2068558babd6ea837c6ee1b4ffcf598ca073805a02c7d
linuxptp-debugsource-4.4-8.el10_2.1.ppc64le.rpm SHA-256: efadcd5fe6a29498c9638a2f9e2367e36b4eed369e3f6ba0a3e35690d34fe01b
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
x86_64
linuxptp-4.4-8.el10_2.1.x86_64.rpm SHA-256: c37565e9acea5224e8025192596545214dd401b3f07adf1ee040e1a6be962639
linuxptp-debuginfo-4.4-8.el10_2.1.x86_64.rpm SHA-256: 8873d8d10f2718b0c30ca1dfa65b66e7172f1d0f0005453606ec2d5039af5446
linuxptp-debugsource-4.4-8.el10_2.1.x86_64.rpm SHA-256: d3a1f399d908e9d121cba0dd23ed12557a6051b63bb737ea89aba104b013185a
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
x86_64
linuxptp-4.4-8.el10_2.1.x86_64.rpm SHA-256: c37565e9acea5224e8025192596545214dd401b3f07adf1ee040e1a6be962639
linuxptp-debuginfo-4.4-8.el10_2.1.x86_64.rpm SHA-256: 8873d8d10f2718b0c30ca1dfa65b66e7172f1d0f0005453606ec2d5039af5446
linuxptp-debugsource-4.4-8.el10_2.1.x86_64.rpm SHA-256: d3a1f399d908e9d121cba0dd23ed12557a6051b63bb737ea89aba104b013185a
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
aarch64
linuxptp-4.4-8.el10_2.1.aarch64.rpm SHA-256: a6609955c4f6adc1822ec1243a10c7e88d58b52c2dda069eb84492560023e2f9
linuxptp-debuginfo-4.4-8.el10_2.1.aarch64.rpm SHA-256: 6dd4a060f63af953a18dcd1fa3d720af35087f58e4867a4d54ad04501b4bcdad
linuxptp-debugsource-4.4-8.el10_2.1.aarch64.rpm SHA-256: 1af0cc10a971d2e811467a0313776f7c4832bfc919e60d2fcd042e18db8d7df9
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
ppc64le
linuxptp-4.4-8.el10_2.1.ppc64le.rpm SHA-256: e164adb8e14fed80dd01ce21ada4dbd1b0820f5b4065c8b84f7c78db4eda87fd
linuxptp-debuginfo-4.4-8.el10_2.1.ppc64le.rpm SHA-256: 0da0059873101b8448f2068558babd6ea837c6ee1b4ffcf598ca073805a02c7d
linuxptp-debugsource-4.4-8.el10_2.1.ppc64le.rpm SHA-256: efadcd5fe6a29498c9638a2f9e2367e36b4eed369e3f6ba0a3e35690d34fe01b
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2

SRPM
linuxptp-4.4-8.el10_2.1.src.rpm SHA-256: 40f7326c5a2c40f9131be587efce3efabb8ccec13bc43389e99b80084b1daf01
s390x
linuxptp-4.4-8.el10_2.1.s390x.rpm SHA-256: e5569a4c7bc6d83532444cc1be5f72a50e5db1bd9b9e5820e96b1a31c5db8259
linuxptp-debuginfo-4.4-8.el10_2.1.s390x.rpm SHA-256: ef7b40ffdd2a5586f26d6beb5e3b75c847a8c9c274f7bdb360d885b13a3cb1f1
linuxptp-debugsource-4.4-8.el10_2.1.s390x.rpm SHA-256: e581f84f8251a3fc5d972f6622177113b5dce9cf2b5ffcadd1659f70a59cf561
linuxptp-selinux-4.4-8.el10_2.1.noarch.rpm SHA-256: cb799958263d89043b1f6371ab4cc158462c9d1aa2a281d461eb8bbdc0f0f687

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