Issued:: 2026-05-19
Updated:: 2026-05-19

RHBA-2026:18456 - Bug Fix Advisory

Overview
Updated Packages

Synopsis

dnsmasq 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 dnsmasq 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 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-122843 - image mode: dnsmasq[17800]: cannot open or create lease file /var/lib/dnsmasq/dnsmasq.leases:

CVEs

(none)

References

https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/10/html/10.2_release_notes/index

Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux for x86_64 10

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
x86_64
dnsmasq-2.90-5.el10.x86_64.rpm	SHA-256: 835e1d849f3b25131b9c6a2f116059e31573074b386240a8a00d928b25cd423b
dnsmasq-debuginfo-2.90-5.el10.x86_64.rpm	SHA-256: 578b06b76e43b2098dad93636084b1a5f2acd7927f194899db195de992beb534
dnsmasq-debugsource-2.90-5.el10.x86_64.rpm	SHA-256: e712e77aab531942b145ed6574e41ccf275c511a139dbfc7191cbf9e6043be6c
dnsmasq-utils-2.90-5.el10.x86_64.rpm	SHA-256: b36294851bf56105c6a73044d3f128a99f0a36057d1b388b8228bc6e3f28502f
dnsmasq-utils-debuginfo-2.90-5.el10.x86_64.rpm	SHA-256: cf7e87634444ba08879de91a53299d8acebfecbfef8aab5e65a247af1ed85b22

Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
x86_64
dnsmasq-2.90-5.el10.x86_64.rpm	SHA-256: 835e1d849f3b25131b9c6a2f116059e31573074b386240a8a00d928b25cd423b
dnsmasq-debuginfo-2.90-5.el10.x86_64.rpm	SHA-256: 578b06b76e43b2098dad93636084b1a5f2acd7927f194899db195de992beb534
dnsmasq-debugsource-2.90-5.el10.x86_64.rpm	SHA-256: e712e77aab531942b145ed6574e41ccf275c511a139dbfc7191cbf9e6043be6c
dnsmasq-utils-2.90-5.el10.x86_64.rpm	SHA-256: b36294851bf56105c6a73044d3f128a99f0a36057d1b388b8228bc6e3f28502f
dnsmasq-utils-debuginfo-2.90-5.el10.x86_64.rpm	SHA-256: cf7e87634444ba08879de91a53299d8acebfecbfef8aab5e65a247af1ed85b22

Red Hat Enterprise Linux for IBM z Systems 10

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
s390x
dnsmasq-2.90-5.el10.s390x.rpm	SHA-256: c9fcdca59eed448df0882176e017d9f07602d063d0bd39aeeeeec691a95e1f29
dnsmasq-debuginfo-2.90-5.el10.s390x.rpm	SHA-256: a0b766b0c12a767e4d9d6bd55456fe694fc51e77d28eaedb70d8f11c4152fa15
dnsmasq-debugsource-2.90-5.el10.s390x.rpm	SHA-256: e3822fe336a5e8b1da02555c19bc58a0388db503eafa3457d23e4edbdd7696cb
dnsmasq-utils-2.90-5.el10.s390x.rpm	SHA-256: 476d3ff5cd44f39a99cc9101b30c34ed94aeecaa85bcbec2e8c9acc319d34c03
dnsmasq-utils-debuginfo-2.90-5.el10.s390x.rpm	SHA-256: e67d295b3b60f688caa5078a8b9f57b0f23b574ed8188505b0337848366b29a0

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
s390x
dnsmasq-2.90-5.el10.s390x.rpm	SHA-256: c9fcdca59eed448df0882176e017d9f07602d063d0bd39aeeeeec691a95e1f29
dnsmasq-debuginfo-2.90-5.el10.s390x.rpm	SHA-256: a0b766b0c12a767e4d9d6bd55456fe694fc51e77d28eaedb70d8f11c4152fa15
dnsmasq-debugsource-2.90-5.el10.s390x.rpm	SHA-256: e3822fe336a5e8b1da02555c19bc58a0388db503eafa3457d23e4edbdd7696cb
dnsmasq-utils-2.90-5.el10.s390x.rpm	SHA-256: 476d3ff5cd44f39a99cc9101b30c34ed94aeecaa85bcbec2e8c9acc319d34c03
dnsmasq-utils-debuginfo-2.90-5.el10.s390x.rpm	SHA-256: e67d295b3b60f688caa5078a8b9f57b0f23b574ed8188505b0337848366b29a0

Red Hat Enterprise Linux for Power, little endian 10

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
ppc64le
dnsmasq-2.90-5.el10.ppc64le.rpm	SHA-256: 712a9e002dc62d578f2d733b8ae3bd3f80995a2995f3a53bc4ee9db699a8b2f1
dnsmasq-debuginfo-2.90-5.el10.ppc64le.rpm	SHA-256: 62e1ed83efe8ceec68a525b10bb9624e4926aee779ad587addd6ab2ca304cdf9
dnsmasq-debugsource-2.90-5.el10.ppc64le.rpm	SHA-256: ed080ea48149bca0ead625806662e7863f037c3cb97dd3b735da2cb653d6089c
dnsmasq-utils-2.90-5.el10.ppc64le.rpm	SHA-256: 2e162978577f51562fac83f1f78678626afb226ca32a0d5b52c1471c58073a13
dnsmasq-utils-debuginfo-2.90-5.el10.ppc64le.rpm	SHA-256: b0f19db71bf6db3267cc709986fc62925ac1455a7f2e731ac48d977e63971ea9

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
ppc64le
dnsmasq-2.90-5.el10.ppc64le.rpm	SHA-256: 712a9e002dc62d578f2d733b8ae3bd3f80995a2995f3a53bc4ee9db699a8b2f1
dnsmasq-debuginfo-2.90-5.el10.ppc64le.rpm	SHA-256: 62e1ed83efe8ceec68a525b10bb9624e4926aee779ad587addd6ab2ca304cdf9
dnsmasq-debugsource-2.90-5.el10.ppc64le.rpm	SHA-256: ed080ea48149bca0ead625806662e7863f037c3cb97dd3b735da2cb653d6089c
dnsmasq-utils-2.90-5.el10.ppc64le.rpm	SHA-256: 2e162978577f51562fac83f1f78678626afb226ca32a0d5b52c1471c58073a13
dnsmasq-utils-debuginfo-2.90-5.el10.ppc64le.rpm	SHA-256: b0f19db71bf6db3267cc709986fc62925ac1455a7f2e731ac48d977e63971ea9

Red Hat Enterprise Linux for ARM 64 10

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
aarch64
dnsmasq-2.90-5.el10.aarch64.rpm	SHA-256: 806d75df387305e2e4b763d69f54f1a16ea22b79f5c419a9bd9423a56aa792cc
dnsmasq-debuginfo-2.90-5.el10.aarch64.rpm	SHA-256: 3453d14fe4018ce77e6b2c0b45aa467aee9bcae9e5ecb6f60ae8eb0469dd3264
dnsmasq-debugsource-2.90-5.el10.aarch64.rpm	SHA-256: 5eca44f4dd35c5e7edc1eb16713867a6623a6eeb5cc60b33e77900c2236dd68e
dnsmasq-utils-2.90-5.el10.aarch64.rpm	SHA-256: 53703354755a98c724ee44cc77a4a4c1bea4bb23eb3e86d1ab1e5818d3cebbe3
dnsmasq-utils-debuginfo-2.90-5.el10.aarch64.rpm	SHA-256: 8467be3a92c7f35d499e7f434e4fdb3991f46a2741e04c4d4157a3ca2984e311

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
aarch64
dnsmasq-2.90-5.el10.aarch64.rpm	SHA-256: 806d75df387305e2e4b763d69f54f1a16ea22b79f5c419a9bd9423a56aa792cc
dnsmasq-debuginfo-2.90-5.el10.aarch64.rpm	SHA-256: 3453d14fe4018ce77e6b2c0b45aa467aee9bcae9e5ecb6f60ae8eb0469dd3264
dnsmasq-debugsource-2.90-5.el10.aarch64.rpm	SHA-256: 5eca44f4dd35c5e7edc1eb16713867a6623a6eeb5cc60b33e77900c2236dd68e
dnsmasq-utils-2.90-5.el10.aarch64.rpm	SHA-256: 53703354755a98c724ee44cc77a4a4c1bea4bb23eb3e86d1ab1e5818d3cebbe3
dnsmasq-utils-debuginfo-2.90-5.el10.aarch64.rpm	SHA-256: 8467be3a92c7f35d499e7f434e4fdb3991f46a2741e04c4d4157a3ca2984e311

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
aarch64
dnsmasq-2.90-5.el10.aarch64.rpm	SHA-256: 806d75df387305e2e4b763d69f54f1a16ea22b79f5c419a9bd9423a56aa792cc
dnsmasq-debuginfo-2.90-5.el10.aarch64.rpm	SHA-256: 3453d14fe4018ce77e6b2c0b45aa467aee9bcae9e5ecb6f60ae8eb0469dd3264
dnsmasq-debugsource-2.90-5.el10.aarch64.rpm	SHA-256: 5eca44f4dd35c5e7edc1eb16713867a6623a6eeb5cc60b33e77900c2236dd68e
dnsmasq-utils-2.90-5.el10.aarch64.rpm	SHA-256: 53703354755a98c724ee44cc77a4a4c1bea4bb23eb3e86d1ab1e5818d3cebbe3
dnsmasq-utils-debuginfo-2.90-5.el10.aarch64.rpm	SHA-256: 8467be3a92c7f35d499e7f434e4fdb3991f46a2741e04c4d4157a3ca2984e311

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
s390x
dnsmasq-2.90-5.el10.s390x.rpm	SHA-256: c9fcdca59eed448df0882176e017d9f07602d063d0bd39aeeeeec691a95e1f29
dnsmasq-debuginfo-2.90-5.el10.s390x.rpm	SHA-256: a0b766b0c12a767e4d9d6bd55456fe694fc51e77d28eaedb70d8f11c4152fa15
dnsmasq-debugsource-2.90-5.el10.s390x.rpm	SHA-256: e3822fe336a5e8b1da02555c19bc58a0388db503eafa3457d23e4edbdd7696cb
dnsmasq-utils-2.90-5.el10.s390x.rpm	SHA-256: 476d3ff5cd44f39a99cc9101b30c34ed94aeecaa85bcbec2e8c9acc319d34c03
dnsmasq-utils-debuginfo-2.90-5.el10.s390x.rpm	SHA-256: e67d295b3b60f688caa5078a8b9f57b0f23b574ed8188505b0337848366b29a0

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
ppc64le
dnsmasq-2.90-5.el10.ppc64le.rpm	SHA-256: 712a9e002dc62d578f2d733b8ae3bd3f80995a2995f3a53bc4ee9db699a8b2f1
dnsmasq-debuginfo-2.90-5.el10.ppc64le.rpm	SHA-256: 62e1ed83efe8ceec68a525b10bb9624e4926aee779ad587addd6ab2ca304cdf9
dnsmasq-debugsource-2.90-5.el10.ppc64le.rpm	SHA-256: ed080ea48149bca0ead625806662e7863f037c3cb97dd3b735da2cb653d6089c
dnsmasq-utils-2.90-5.el10.ppc64le.rpm	SHA-256: 2e162978577f51562fac83f1f78678626afb226ca32a0d5b52c1471c58073a13
dnsmasq-utils-debuginfo-2.90-5.el10.ppc64le.rpm	SHA-256: b0f19db71bf6db3267cc709986fc62925ac1455a7f2e731ac48d977e63971ea9

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
x86_64
dnsmasq-2.90-5.el10.x86_64.rpm	SHA-256: 835e1d849f3b25131b9c6a2f116059e31573074b386240a8a00d928b25cd423b
dnsmasq-debuginfo-2.90-5.el10.x86_64.rpm	SHA-256: 578b06b76e43b2098dad93636084b1a5f2acd7927f194899db195de992beb534
dnsmasq-debugsource-2.90-5.el10.x86_64.rpm	SHA-256: e712e77aab531942b145ed6574e41ccf275c511a139dbfc7191cbf9e6043be6c
dnsmasq-utils-2.90-5.el10.x86_64.rpm	SHA-256: b36294851bf56105c6a73044d3f128a99f0a36057d1b388b8228bc6e3f28502f
dnsmasq-utils-debuginfo-2.90-5.el10.x86_64.rpm	SHA-256: cf7e87634444ba08879de91a53299d8acebfecbfef8aab5e65a247af1ed85b22

Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
x86_64
dnsmasq-2.90-5.el10.x86_64.rpm	SHA-256: 835e1d849f3b25131b9c6a2f116059e31573074b386240a8a00d928b25cd423b
dnsmasq-debuginfo-2.90-5.el10.x86_64.rpm	SHA-256: 578b06b76e43b2098dad93636084b1a5f2acd7927f194899db195de992beb534
dnsmasq-debugsource-2.90-5.el10.x86_64.rpm	SHA-256: e712e77aab531942b145ed6574e41ccf275c511a139dbfc7191cbf9e6043be6c
dnsmasq-utils-2.90-5.el10.x86_64.rpm	SHA-256: b36294851bf56105c6a73044d3f128a99f0a36057d1b388b8228bc6e3f28502f
dnsmasq-utils-debuginfo-2.90-5.el10.x86_64.rpm	SHA-256: cf7e87634444ba08879de91a53299d8acebfecbfef8aab5e65a247af1ed85b22

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
aarch64
dnsmasq-2.90-5.el10.aarch64.rpm	SHA-256: 806d75df387305e2e4b763d69f54f1a16ea22b79f5c419a9bd9423a56aa792cc
dnsmasq-debuginfo-2.90-5.el10.aarch64.rpm	SHA-256: 3453d14fe4018ce77e6b2c0b45aa467aee9bcae9e5ecb6f60ae8eb0469dd3264
dnsmasq-debugsource-2.90-5.el10.aarch64.rpm	SHA-256: 5eca44f4dd35c5e7edc1eb16713867a6623a6eeb5cc60b33e77900c2236dd68e
dnsmasq-utils-2.90-5.el10.aarch64.rpm	SHA-256: 53703354755a98c724ee44cc77a4a4c1bea4bb23eb3e86d1ab1e5818d3cebbe3
dnsmasq-utils-debuginfo-2.90-5.el10.aarch64.rpm	SHA-256: 8467be3a92c7f35d499e7f434e4fdb3991f46a2741e04c4d4157a3ca2984e311

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
ppc64le
dnsmasq-2.90-5.el10.ppc64le.rpm	SHA-256: 712a9e002dc62d578f2d733b8ae3bd3f80995a2995f3a53bc4ee9db699a8b2f1
dnsmasq-debuginfo-2.90-5.el10.ppc64le.rpm	SHA-256: 62e1ed83efe8ceec68a525b10bb9624e4926aee779ad587addd6ab2ca304cdf9
dnsmasq-debugsource-2.90-5.el10.ppc64le.rpm	SHA-256: ed080ea48149bca0ead625806662e7863f037c3cb97dd3b735da2cb653d6089c
dnsmasq-utils-2.90-5.el10.ppc64le.rpm	SHA-256: 2e162978577f51562fac83f1f78678626afb226ca32a0d5b52c1471c58073a13
dnsmasq-utils-debuginfo-2.90-5.el10.ppc64le.rpm	SHA-256: b0f19db71bf6db3267cc709986fc62925ac1455a7f2e731ac48d977e63971ea9

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

SRPM
dnsmasq-2.90-5.el10.src.rpm	SHA-256: 443f606a39d9158e4ee56aa90573697cf9620f00710b90b322272966bc5f9d2a
s390x
dnsmasq-2.90-5.el10.s390x.rpm	SHA-256: c9fcdca59eed448df0882176e017d9f07602d063d0bd39aeeeeec691a95e1f29
dnsmasq-debuginfo-2.90-5.el10.s390x.rpm	SHA-256: a0b766b0c12a767e4d9d6bd55456fe694fc51e77d28eaedb70d8f11c4152fa15
dnsmasq-debugsource-2.90-5.el10.s390x.rpm	SHA-256: e3822fe336a5e8b1da02555c19bc58a0388db503eafa3457d23e4edbdd7696cb
dnsmasq-utils-2.90-5.el10.s390x.rpm	SHA-256: 476d3ff5cd44f39a99cc9101b30c34ed94aeecaa85bcbec2e8c9acc319d34c03
dnsmasq-utils-debuginfo-2.90-5.el10.s390x.rpm	SHA-256: e67d295b3b60f688caa5078a8b9f57b0f23b574ed8188505b0337848366b29a0

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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