Red Hat Product Errata RHBA-2026:18389 - Bug Fix Advisory
Issued:
2026-05-19
Updated:
2026-05-19

RHBA-2026:18389 - Bug Fix Advisory

Synopsis

gdm 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 gdm is now available for Red Hat Enterprise Linux 10.

Description

For detailed information on changes in this release, see the Red Hat Enterprise Linux 10 Release Notes linked from the References section.

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 CodeReady Linux Builder for x86_64 10 x86_64
  • Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le
  • Red Hat CodeReady Linux Builder for ARM 64 10 aarch64
  • Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x
  • Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.2 x86_64
  • Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.2 ppc64le
  • Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.2 s390x
  • Red Hat CodeReady Linux Builder 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

  • RHEL-126603 - Implement starting headless sessions in C
  • RHEL-86140 - plymouthd does not quit if the video port is not enabled because a monitor is not connected
  • RHEL-4147 - gdm creates dangling wtmp records
  • RHEL-86485 - generating failed logins when using correct password

CVEs

(none)

Red Hat Enterprise Linux for x86_64 10

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
x86_64
gdm-47.0-18.el10.x86_64.rpm SHA-256: bf9be4fe355996448249595ca8391e27fb3c74906d38e71542c7ce2c98c0174e
gdm-debuginfo-47.0-18.el10.x86_64.rpm SHA-256: 53745ca1e6e79cb9b79d52280fd2a059c6d835a3acc2844ef3cee5c839099765
gdm-debugsource-47.0-18.el10.x86_64.rpm SHA-256: 6bab64dae8ab0596b446afb5a46f58c710d2f91115bd00637996341fc42e9722

Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
x86_64
gdm-47.0-18.el10.x86_64.rpm SHA-256: bf9be4fe355996448249595ca8391e27fb3c74906d38e71542c7ce2c98c0174e
gdm-debuginfo-47.0-18.el10.x86_64.rpm SHA-256: 53745ca1e6e79cb9b79d52280fd2a059c6d835a3acc2844ef3cee5c839099765
gdm-debugsource-47.0-18.el10.x86_64.rpm SHA-256: 6bab64dae8ab0596b446afb5a46f58c710d2f91115bd00637996341fc42e9722

Red Hat Enterprise Linux for IBM z Systems 10

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
s390x
gdm-47.0-18.el10.s390x.rpm SHA-256: 197cf4471546a25a50e299548772f5dd7122bb129659b8dad8612389cb9e0c52
gdm-debuginfo-47.0-18.el10.s390x.rpm SHA-256: 477bc7ad33f0bec120a6c502835694f159c334345ad2da09cf72f50a05d92c22
gdm-debugsource-47.0-18.el10.s390x.rpm SHA-256: a9980716a7a09551b9ced0b371fad0b93615a64d8f9528818c4c207d832eab8b

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
s390x
gdm-47.0-18.el10.s390x.rpm SHA-256: 197cf4471546a25a50e299548772f5dd7122bb129659b8dad8612389cb9e0c52
gdm-debuginfo-47.0-18.el10.s390x.rpm SHA-256: 477bc7ad33f0bec120a6c502835694f159c334345ad2da09cf72f50a05d92c22
gdm-debugsource-47.0-18.el10.s390x.rpm SHA-256: a9980716a7a09551b9ced0b371fad0b93615a64d8f9528818c4c207d832eab8b

Red Hat Enterprise Linux for Power, little endian 10

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
ppc64le
gdm-47.0-18.el10.ppc64le.rpm SHA-256: fd1b9a382427d55c1b42d58db9a37ef43c00c8591815de9d5308cb86e5d1f40a
gdm-debuginfo-47.0-18.el10.ppc64le.rpm SHA-256: ee515c39a56c21514629ba971fd12254633a7b4eb3631772fc1a8fee09ccbea4
gdm-debugsource-47.0-18.el10.ppc64le.rpm SHA-256: c2b38b6eedb080da2d20b4deece8ebf7a44822bf08d62902112a6406897048a3

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
ppc64le
gdm-47.0-18.el10.ppc64le.rpm SHA-256: fd1b9a382427d55c1b42d58db9a37ef43c00c8591815de9d5308cb86e5d1f40a
gdm-debuginfo-47.0-18.el10.ppc64le.rpm SHA-256: ee515c39a56c21514629ba971fd12254633a7b4eb3631772fc1a8fee09ccbea4
gdm-debugsource-47.0-18.el10.ppc64le.rpm SHA-256: c2b38b6eedb080da2d20b4deece8ebf7a44822bf08d62902112a6406897048a3

Red Hat Enterprise Linux for ARM 64 10

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
aarch64
gdm-47.0-18.el10.aarch64.rpm SHA-256: 8aa7041e852be7d1f48876d6d40984dc312eb97d8672d22799d14a1c63a843da
gdm-debuginfo-47.0-18.el10.aarch64.rpm SHA-256: 898ce670661defcb3967006c13550cc8c2bcdc8f07d85aaf86203200b4a52116
gdm-debugsource-47.0-18.el10.aarch64.rpm SHA-256: 46c617dbd9b3608550ba248d042a5bc4353dddea66bf62038a4175b2f2da6c83

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
aarch64
gdm-47.0-18.el10.aarch64.rpm SHA-256: 8aa7041e852be7d1f48876d6d40984dc312eb97d8672d22799d14a1c63a843da
gdm-debuginfo-47.0-18.el10.aarch64.rpm SHA-256: 898ce670661defcb3967006c13550cc8c2bcdc8f07d85aaf86203200b4a52116
gdm-debugsource-47.0-18.el10.aarch64.rpm SHA-256: 46c617dbd9b3608550ba248d042a5bc4353dddea66bf62038a4175b2f2da6c83

Red Hat CodeReady Linux Builder for x86_64 10

SRPM
x86_64
gdm-debuginfo-47.0-18.el10.x86_64.rpm SHA-256: 53745ca1e6e79cb9b79d52280fd2a059c6d835a3acc2844ef3cee5c839099765
gdm-debugsource-47.0-18.el10.x86_64.rpm SHA-256: 6bab64dae8ab0596b446afb5a46f58c710d2f91115bd00637996341fc42e9722
gdm-devel-47.0-18.el10.x86_64.rpm SHA-256: 63e4405f6dfa707034d8988b3e4532d82b73bec0f90a63e30943fe881b9cc806
gdm-pam-extensions-devel-47.0-18.el10.x86_64.rpm SHA-256: c7982877c3cabf39ce3fb70617343aa68c62003665c7d3a8314000a36e27bbc9

Red Hat CodeReady Linux Builder for Power, little endian 10

SRPM
ppc64le
gdm-debuginfo-47.0-18.el10.ppc64le.rpm SHA-256: ee515c39a56c21514629ba971fd12254633a7b4eb3631772fc1a8fee09ccbea4
gdm-debugsource-47.0-18.el10.ppc64le.rpm SHA-256: c2b38b6eedb080da2d20b4deece8ebf7a44822bf08d62902112a6406897048a3
gdm-devel-47.0-18.el10.ppc64le.rpm SHA-256: da31a7f0eb6f1c91d0e57c6951ceeee5c6fe7f72bbbdf86d79c042cfb167477f
gdm-pam-extensions-devel-47.0-18.el10.ppc64le.rpm SHA-256: 88d19e9c809d8bfbdc24a68dcd431e0e6b9aab1bdc1349483f1e589d20e802e4

Red Hat CodeReady Linux Builder for ARM 64 10

SRPM
aarch64
gdm-debuginfo-47.0-18.el10.aarch64.rpm SHA-256: 898ce670661defcb3967006c13550cc8c2bcdc8f07d85aaf86203200b4a52116
gdm-debugsource-47.0-18.el10.aarch64.rpm SHA-256: 46c617dbd9b3608550ba248d042a5bc4353dddea66bf62038a4175b2f2da6c83
gdm-devel-47.0-18.el10.aarch64.rpm SHA-256: a1b069e07651289cb54ea5c6ce97e770094bd3ba6ad7c9fcfdb655d80014d2fe
gdm-pam-extensions-devel-47.0-18.el10.aarch64.rpm SHA-256: 9faa0a1b41a255d911500968eaefa115eb8400a9497481cc6436c390044bedfb

Red Hat CodeReady Linux Builder for IBM z Systems 10

SRPM
s390x
gdm-debuginfo-47.0-18.el10.s390x.rpm SHA-256: 477bc7ad33f0bec120a6c502835694f159c334345ad2da09cf72f50a05d92c22
gdm-debugsource-47.0-18.el10.s390x.rpm SHA-256: a9980716a7a09551b9ced0b371fad0b93615a64d8f9528818c4c207d832eab8b
gdm-devel-47.0-18.el10.s390x.rpm SHA-256: 6e253ab842c07044f945439fa27744c408c393a6b5c40a17e4ac2463ba21c215
gdm-pam-extensions-devel-47.0-18.el10.s390x.rpm SHA-256: aa81a4e8a28c553df4ac343907c67507ca55ac10561aa49076f7b2636c047303

Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.2

SRPM
x86_64
gdm-debuginfo-47.0-18.el10.x86_64.rpm SHA-256: 53745ca1e6e79cb9b79d52280fd2a059c6d835a3acc2844ef3cee5c839099765
gdm-debugsource-47.0-18.el10.x86_64.rpm SHA-256: 6bab64dae8ab0596b446afb5a46f58c710d2f91115bd00637996341fc42e9722
gdm-devel-47.0-18.el10.x86_64.rpm SHA-256: 63e4405f6dfa707034d8988b3e4532d82b73bec0f90a63e30943fe881b9cc806
gdm-pam-extensions-devel-47.0-18.el10.x86_64.rpm SHA-256: c7982877c3cabf39ce3fb70617343aa68c62003665c7d3a8314000a36e27bbc9

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

SRPM
ppc64le
gdm-debuginfo-47.0-18.el10.ppc64le.rpm SHA-256: ee515c39a56c21514629ba971fd12254633a7b4eb3631772fc1a8fee09ccbea4
gdm-debugsource-47.0-18.el10.ppc64le.rpm SHA-256: c2b38b6eedb080da2d20b4deece8ebf7a44822bf08d62902112a6406897048a3
gdm-devel-47.0-18.el10.ppc64le.rpm SHA-256: da31a7f0eb6f1c91d0e57c6951ceeee5c6fe7f72bbbdf86d79c042cfb167477f
gdm-pam-extensions-devel-47.0-18.el10.ppc64le.rpm SHA-256: 88d19e9c809d8bfbdc24a68dcd431e0e6b9aab1bdc1349483f1e589d20e802e4

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

SRPM
s390x
gdm-debuginfo-47.0-18.el10.s390x.rpm SHA-256: 477bc7ad33f0bec120a6c502835694f159c334345ad2da09cf72f50a05d92c22
gdm-debugsource-47.0-18.el10.s390x.rpm SHA-256: a9980716a7a09551b9ced0b371fad0b93615a64d8f9528818c4c207d832eab8b
gdm-devel-47.0-18.el10.s390x.rpm SHA-256: 6e253ab842c07044f945439fa27744c408c393a6b5c40a17e4ac2463ba21c215
gdm-pam-extensions-devel-47.0-18.el10.s390x.rpm SHA-256: aa81a4e8a28c553df4ac343907c67507ca55ac10561aa49076f7b2636c047303

Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.2

SRPM
aarch64
gdm-debuginfo-47.0-18.el10.aarch64.rpm SHA-256: 898ce670661defcb3967006c13550cc8c2bcdc8f07d85aaf86203200b4a52116
gdm-debugsource-47.0-18.el10.aarch64.rpm SHA-256: 46c617dbd9b3608550ba248d042a5bc4353dddea66bf62038a4175b2f2da6c83
gdm-devel-47.0-18.el10.aarch64.rpm SHA-256: a1b069e07651289cb54ea5c6ce97e770094bd3ba6ad7c9fcfdb655d80014d2fe
gdm-pam-extensions-devel-47.0-18.el10.aarch64.rpm SHA-256: 9faa0a1b41a255d911500968eaefa115eb8400a9497481cc6436c390044bedfb

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
aarch64
gdm-47.0-18.el10.aarch64.rpm SHA-256: 8aa7041e852be7d1f48876d6d40984dc312eb97d8672d22799d14a1c63a843da
gdm-debuginfo-47.0-18.el10.aarch64.rpm SHA-256: 898ce670661defcb3967006c13550cc8c2bcdc8f07d85aaf86203200b4a52116
gdm-debugsource-47.0-18.el10.aarch64.rpm SHA-256: 46c617dbd9b3608550ba248d042a5bc4353dddea66bf62038a4175b2f2da6c83

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
s390x
gdm-47.0-18.el10.s390x.rpm SHA-256: 197cf4471546a25a50e299548772f5dd7122bb129659b8dad8612389cb9e0c52
gdm-debuginfo-47.0-18.el10.s390x.rpm SHA-256: 477bc7ad33f0bec120a6c502835694f159c334345ad2da09cf72f50a05d92c22
gdm-debugsource-47.0-18.el10.s390x.rpm SHA-256: a9980716a7a09551b9ced0b371fad0b93615a64d8f9528818c4c207d832eab8b

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
ppc64le
gdm-47.0-18.el10.ppc64le.rpm SHA-256: fd1b9a382427d55c1b42d58db9a37ef43c00c8591815de9d5308cb86e5d1f40a
gdm-debuginfo-47.0-18.el10.ppc64le.rpm SHA-256: ee515c39a56c21514629ba971fd12254633a7b4eb3631772fc1a8fee09ccbea4
gdm-debugsource-47.0-18.el10.ppc64le.rpm SHA-256: c2b38b6eedb080da2d20b4deece8ebf7a44822bf08d62902112a6406897048a3

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
x86_64
gdm-47.0-18.el10.x86_64.rpm SHA-256: bf9be4fe355996448249595ca8391e27fb3c74906d38e71542c7ce2c98c0174e
gdm-debuginfo-47.0-18.el10.x86_64.rpm SHA-256: 53745ca1e6e79cb9b79d52280fd2a059c6d835a3acc2844ef3cee5c839099765
gdm-debugsource-47.0-18.el10.x86_64.rpm SHA-256: 6bab64dae8ab0596b446afb5a46f58c710d2f91115bd00637996341fc42e9722

Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
x86_64
gdm-47.0-18.el10.x86_64.rpm SHA-256: bf9be4fe355996448249595ca8391e27fb3c74906d38e71542c7ce2c98c0174e
gdm-debuginfo-47.0-18.el10.x86_64.rpm SHA-256: 53745ca1e6e79cb9b79d52280fd2a059c6d835a3acc2844ef3cee5c839099765
gdm-debugsource-47.0-18.el10.x86_64.rpm SHA-256: 6bab64dae8ab0596b446afb5a46f58c710d2f91115bd00637996341fc42e9722

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
aarch64
gdm-47.0-18.el10.aarch64.rpm SHA-256: 8aa7041e852be7d1f48876d6d40984dc312eb97d8672d22799d14a1c63a843da
gdm-debuginfo-47.0-18.el10.aarch64.rpm SHA-256: 898ce670661defcb3967006c13550cc8c2bcdc8f07d85aaf86203200b4a52116
gdm-debugsource-47.0-18.el10.aarch64.rpm SHA-256: 46c617dbd9b3608550ba248d042a5bc4353dddea66bf62038a4175b2f2da6c83

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
ppc64le
gdm-47.0-18.el10.ppc64le.rpm SHA-256: fd1b9a382427d55c1b42d58db9a37ef43c00c8591815de9d5308cb86e5d1f40a
gdm-debuginfo-47.0-18.el10.ppc64le.rpm SHA-256: ee515c39a56c21514629ba971fd12254633a7b4eb3631772fc1a8fee09ccbea4
gdm-debugsource-47.0-18.el10.ppc64le.rpm SHA-256: c2b38b6eedb080da2d20b4deece8ebf7a44822bf08d62902112a6406897048a3

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

SRPM
gdm-47.0-18.el10.src.rpm SHA-256: 47cc1c56f2c17cb66ca925e36e4adc87824397c30fde4f285541099f20f8ba10
s390x
gdm-47.0-18.el10.s390x.rpm SHA-256: 197cf4471546a25a50e299548772f5dd7122bb129659b8dad8612389cb9e0c52
gdm-debuginfo-47.0-18.el10.s390x.rpm SHA-256: 477bc7ad33f0bec120a6c502835694f159c334345ad2da09cf72f50a05d92c22
gdm-debugsource-47.0-18.el10.s390x.rpm SHA-256: a9980716a7a09551b9ced0b371fad0b93615a64d8f9528818c4c207d832eab8b

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