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

RHBA-2026:18855 - 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 9.

Description

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9 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 9 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.8 x86_64
Red Hat Enterprise Linux for IBM z Systems 9 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.8 s390x
Red Hat Enterprise Linux for Power, little endian 9 ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.8 ppc64le
Red Hat Enterprise Linux for ARM 64 9 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.8 aarch64
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.8 ppc64le
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.8 x86_64
Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.8 aarch64
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.8 s390x
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.8 x86_64
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.8 aarch64
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.8 ppc64le
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.8 s390x

Fixes

(none)

CVEs

(none)

References

https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.8_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 9

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
x86_64
dnsmasq-2.85-18.el9.x86_64.rpm	SHA-256: e9661830b50f83f5e4c3524ecb5fdd80a1f404cd41848cbc33d59fe9b3643412
dnsmasq-debuginfo-2.85-18.el9.x86_64.rpm	SHA-256: 118ccf72b1b224574e5598a73b6305f7ed8293982552079fde576864dcf1446f
dnsmasq-debugsource-2.85-18.el9.x86_64.rpm	SHA-256: 1d7116741b1541e80941bef82ea569011449068a98be62d208af9dcfaf511ad8
dnsmasq-utils-2.85-18.el9.x86_64.rpm	SHA-256: e91c5a64abb290f28be0c838e33ebe9d18ce20f6e78e019b8cf36b63106023c1
dnsmasq-utils-debuginfo-2.85-18.el9.x86_64.rpm	SHA-256: d315f512f68046a4634153e2b1d1b4133fbe169d5dc1105d24bf695ae6f04113

Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
x86_64
dnsmasq-2.85-18.el9.x86_64.rpm	SHA-256: e9661830b50f83f5e4c3524ecb5fdd80a1f404cd41848cbc33d59fe9b3643412
dnsmasq-debuginfo-2.85-18.el9.x86_64.rpm	SHA-256: 118ccf72b1b224574e5598a73b6305f7ed8293982552079fde576864dcf1446f
dnsmasq-debugsource-2.85-18.el9.x86_64.rpm	SHA-256: 1d7116741b1541e80941bef82ea569011449068a98be62d208af9dcfaf511ad8
dnsmasq-utils-2.85-18.el9.x86_64.rpm	SHA-256: e91c5a64abb290f28be0c838e33ebe9d18ce20f6e78e019b8cf36b63106023c1
dnsmasq-utils-debuginfo-2.85-18.el9.x86_64.rpm	SHA-256: d315f512f68046a4634153e2b1d1b4133fbe169d5dc1105d24bf695ae6f04113

Red Hat Enterprise Linux for IBM z Systems 9

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
s390x
dnsmasq-2.85-18.el9.s390x.rpm	SHA-256: c91de494af733613d1d15c9f52019188a16556134a3eafe2c9f0982869404fbe
dnsmasq-debuginfo-2.85-18.el9.s390x.rpm	SHA-256: 2851f5b72577c538e5b73812ca9cc8d7e7946e93cd0858e795da12a6a186c554
dnsmasq-debugsource-2.85-18.el9.s390x.rpm	SHA-256: a5340f271cfa29ae25c7c301c80242ece8951fbaa6da2f41994fc56a17f72b06
dnsmasq-utils-2.85-18.el9.s390x.rpm	SHA-256: 413e9e052108d80a01395c7773f3fee192b811af1dd237cc16c65cb0ec766330
dnsmasq-utils-debuginfo-2.85-18.el9.s390x.rpm	SHA-256: 3f879e2755f6d1c05d1efdacdcef30c02771daeccb886b8393f99410a680f8fc

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
s390x
dnsmasq-2.85-18.el9.s390x.rpm	SHA-256: c91de494af733613d1d15c9f52019188a16556134a3eafe2c9f0982869404fbe
dnsmasq-debuginfo-2.85-18.el9.s390x.rpm	SHA-256: 2851f5b72577c538e5b73812ca9cc8d7e7946e93cd0858e795da12a6a186c554
dnsmasq-debugsource-2.85-18.el9.s390x.rpm	SHA-256: a5340f271cfa29ae25c7c301c80242ece8951fbaa6da2f41994fc56a17f72b06
dnsmasq-utils-2.85-18.el9.s390x.rpm	SHA-256: 413e9e052108d80a01395c7773f3fee192b811af1dd237cc16c65cb0ec766330
dnsmasq-utils-debuginfo-2.85-18.el9.s390x.rpm	SHA-256: 3f879e2755f6d1c05d1efdacdcef30c02771daeccb886b8393f99410a680f8fc

Red Hat Enterprise Linux for Power, little endian 9

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
ppc64le
dnsmasq-2.85-18.el9.ppc64le.rpm	SHA-256: be5dbfc20413ab5603d322119294072d520c8075e9c9cadaf5e4d85508f11e1d
dnsmasq-debuginfo-2.85-18.el9.ppc64le.rpm	SHA-256: d98ba9bbbcb2e5ac935eef63a5765e71c991c0c84336ed69e3747d4d82d68963
dnsmasq-debugsource-2.85-18.el9.ppc64le.rpm	SHA-256: 1bfb063b12e7c0fe34b548f90a03e323ab2f6c7d8633451d2e79d26a632aa2d1
dnsmasq-utils-2.85-18.el9.ppc64le.rpm	SHA-256: ba2632f7f20d8bc2e70d12a839cf41dd22c9c8322342ef00ad8fd6ab1a0d3d9f
dnsmasq-utils-debuginfo-2.85-18.el9.ppc64le.rpm	SHA-256: 8d4392433e5686d5780ab20dc896b2f31d56c43d3271189882c710de9bca2a0a

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
ppc64le
dnsmasq-2.85-18.el9.ppc64le.rpm	SHA-256: be5dbfc20413ab5603d322119294072d520c8075e9c9cadaf5e4d85508f11e1d
dnsmasq-debuginfo-2.85-18.el9.ppc64le.rpm	SHA-256: d98ba9bbbcb2e5ac935eef63a5765e71c991c0c84336ed69e3747d4d82d68963
dnsmasq-debugsource-2.85-18.el9.ppc64le.rpm	SHA-256: 1bfb063b12e7c0fe34b548f90a03e323ab2f6c7d8633451d2e79d26a632aa2d1
dnsmasq-utils-2.85-18.el9.ppc64le.rpm	SHA-256: ba2632f7f20d8bc2e70d12a839cf41dd22c9c8322342ef00ad8fd6ab1a0d3d9f
dnsmasq-utils-debuginfo-2.85-18.el9.ppc64le.rpm	SHA-256: 8d4392433e5686d5780ab20dc896b2f31d56c43d3271189882c710de9bca2a0a

Red Hat Enterprise Linux for ARM 64 9

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
aarch64
dnsmasq-2.85-18.el9.aarch64.rpm	SHA-256: e2cf2745bf82a99108da75c371da97c3c06654a9a9012ef3323c1b3d4eb0a3ae
dnsmasq-debuginfo-2.85-18.el9.aarch64.rpm	SHA-256: caf4fa7bfb3ecbddf4ef1b6aee6e8537ca1632d077b13fd30900c53a4c62fa8c
dnsmasq-debugsource-2.85-18.el9.aarch64.rpm	SHA-256: 6d7a477cc664427ac6c524f2edf3e3936645b10930c51393ec7f25ff87ad67ea
dnsmasq-utils-2.85-18.el9.aarch64.rpm	SHA-256: 2bf1ddf037feaef795eb06444d8292b36512101562ad83b80076bd3d044779bc
dnsmasq-utils-debuginfo-2.85-18.el9.aarch64.rpm	SHA-256: 45d3672e94a2cbd27557035d626cff849011b6101cc8b88cbd61c4fe8b0f65f1

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
aarch64
dnsmasq-2.85-18.el9.aarch64.rpm	SHA-256: e2cf2745bf82a99108da75c371da97c3c06654a9a9012ef3323c1b3d4eb0a3ae
dnsmasq-debuginfo-2.85-18.el9.aarch64.rpm	SHA-256: caf4fa7bfb3ecbddf4ef1b6aee6e8537ca1632d077b13fd30900c53a4c62fa8c
dnsmasq-debugsource-2.85-18.el9.aarch64.rpm	SHA-256: 6d7a477cc664427ac6c524f2edf3e3936645b10930c51393ec7f25ff87ad67ea
dnsmasq-utils-2.85-18.el9.aarch64.rpm	SHA-256: 2bf1ddf037feaef795eb06444d8292b36512101562ad83b80076bd3d044779bc
dnsmasq-utils-debuginfo-2.85-18.el9.aarch64.rpm	SHA-256: 45d3672e94a2cbd27557035d626cff849011b6101cc8b88cbd61c4fe8b0f65f1

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
ppc64le
dnsmasq-2.85-18.el9.ppc64le.rpm	SHA-256: be5dbfc20413ab5603d322119294072d520c8075e9c9cadaf5e4d85508f11e1d
dnsmasq-debuginfo-2.85-18.el9.ppc64le.rpm	SHA-256: d98ba9bbbcb2e5ac935eef63a5765e71c991c0c84336ed69e3747d4d82d68963
dnsmasq-debugsource-2.85-18.el9.ppc64le.rpm	SHA-256: 1bfb063b12e7c0fe34b548f90a03e323ab2f6c7d8633451d2e79d26a632aa2d1
dnsmasq-utils-2.85-18.el9.ppc64le.rpm	SHA-256: ba2632f7f20d8bc2e70d12a839cf41dd22c9c8322342ef00ad8fd6ab1a0d3d9f
dnsmasq-utils-debuginfo-2.85-18.el9.ppc64le.rpm	SHA-256: 8d4392433e5686d5780ab20dc896b2f31d56c43d3271189882c710de9bca2a0a

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
x86_64
dnsmasq-2.85-18.el9.x86_64.rpm	SHA-256: e9661830b50f83f5e4c3524ecb5fdd80a1f404cd41848cbc33d59fe9b3643412
dnsmasq-debuginfo-2.85-18.el9.x86_64.rpm	SHA-256: 118ccf72b1b224574e5598a73b6305f7ed8293982552079fde576864dcf1446f
dnsmasq-debugsource-2.85-18.el9.x86_64.rpm	SHA-256: 1d7116741b1541e80941bef82ea569011449068a98be62d208af9dcfaf511ad8
dnsmasq-utils-2.85-18.el9.x86_64.rpm	SHA-256: e91c5a64abb290f28be0c838e33ebe9d18ce20f6e78e019b8cf36b63106023c1
dnsmasq-utils-debuginfo-2.85-18.el9.x86_64.rpm	SHA-256: d315f512f68046a4634153e2b1d1b4133fbe169d5dc1105d24bf695ae6f04113

Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
aarch64
dnsmasq-2.85-18.el9.aarch64.rpm	SHA-256: e2cf2745bf82a99108da75c371da97c3c06654a9a9012ef3323c1b3d4eb0a3ae
dnsmasq-debuginfo-2.85-18.el9.aarch64.rpm	SHA-256: caf4fa7bfb3ecbddf4ef1b6aee6e8537ca1632d077b13fd30900c53a4c62fa8c
dnsmasq-debugsource-2.85-18.el9.aarch64.rpm	SHA-256: 6d7a477cc664427ac6c524f2edf3e3936645b10930c51393ec7f25ff87ad67ea
dnsmasq-utils-2.85-18.el9.aarch64.rpm	SHA-256: 2bf1ddf037feaef795eb06444d8292b36512101562ad83b80076bd3d044779bc
dnsmasq-utils-debuginfo-2.85-18.el9.aarch64.rpm	SHA-256: 45d3672e94a2cbd27557035d626cff849011b6101cc8b88cbd61c4fe8b0f65f1

Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
s390x
dnsmasq-2.85-18.el9.s390x.rpm	SHA-256: c91de494af733613d1d15c9f52019188a16556134a3eafe2c9f0982869404fbe
dnsmasq-debuginfo-2.85-18.el9.s390x.rpm	SHA-256: 2851f5b72577c538e5b73812ca9cc8d7e7946e93cd0858e795da12a6a186c554
dnsmasq-debugsource-2.85-18.el9.s390x.rpm	SHA-256: a5340f271cfa29ae25c7c301c80242ece8951fbaa6da2f41994fc56a17f72b06
dnsmasq-utils-2.85-18.el9.s390x.rpm	SHA-256: 413e9e052108d80a01395c7773f3fee192b811af1dd237cc16c65cb0ec766330
dnsmasq-utils-debuginfo-2.85-18.el9.s390x.rpm	SHA-256: 3f879e2755f6d1c05d1efdacdcef30c02771daeccb886b8393f99410a680f8fc

Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
x86_64
dnsmasq-2.85-18.el9.x86_64.rpm	SHA-256: e9661830b50f83f5e4c3524ecb5fdd80a1f404cd41848cbc33d59fe9b3643412
dnsmasq-debuginfo-2.85-18.el9.x86_64.rpm	SHA-256: 118ccf72b1b224574e5598a73b6305f7ed8293982552079fde576864dcf1446f
dnsmasq-debugsource-2.85-18.el9.x86_64.rpm	SHA-256: 1d7116741b1541e80941bef82ea569011449068a98be62d208af9dcfaf511ad8
dnsmasq-utils-2.85-18.el9.x86_64.rpm	SHA-256: e91c5a64abb290f28be0c838e33ebe9d18ce20f6e78e019b8cf36b63106023c1
dnsmasq-utils-debuginfo-2.85-18.el9.x86_64.rpm	SHA-256: d315f512f68046a4634153e2b1d1b4133fbe169d5dc1105d24bf695ae6f04113

Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
aarch64
dnsmasq-2.85-18.el9.aarch64.rpm	SHA-256: e2cf2745bf82a99108da75c371da97c3c06654a9a9012ef3323c1b3d4eb0a3ae
dnsmasq-debuginfo-2.85-18.el9.aarch64.rpm	SHA-256: caf4fa7bfb3ecbddf4ef1b6aee6e8537ca1632d077b13fd30900c53a4c62fa8c
dnsmasq-debugsource-2.85-18.el9.aarch64.rpm	SHA-256: 6d7a477cc664427ac6c524f2edf3e3936645b10930c51393ec7f25ff87ad67ea
dnsmasq-utils-2.85-18.el9.aarch64.rpm	SHA-256: 2bf1ddf037feaef795eb06444d8292b36512101562ad83b80076bd3d044779bc
dnsmasq-utils-debuginfo-2.85-18.el9.aarch64.rpm	SHA-256: 45d3672e94a2cbd27557035d626cff849011b6101cc8b88cbd61c4fe8b0f65f1

Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
ppc64le
dnsmasq-2.85-18.el9.ppc64le.rpm	SHA-256: be5dbfc20413ab5603d322119294072d520c8075e9c9cadaf5e4d85508f11e1d
dnsmasq-debuginfo-2.85-18.el9.ppc64le.rpm	SHA-256: d98ba9bbbcb2e5ac935eef63a5765e71c991c0c84336ed69e3747d4d82d68963
dnsmasq-debugsource-2.85-18.el9.ppc64le.rpm	SHA-256: 1bfb063b12e7c0fe34b548f90a03e323ab2f6c7d8633451d2e79d26a632aa2d1
dnsmasq-utils-2.85-18.el9.ppc64le.rpm	SHA-256: ba2632f7f20d8bc2e70d12a839cf41dd22c9c8322342ef00ad8fd6ab1a0d3d9f
dnsmasq-utils-debuginfo-2.85-18.el9.ppc64le.rpm	SHA-256: 8d4392433e5686d5780ab20dc896b2f31d56c43d3271189882c710de9bca2a0a

Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.8

SRPM
dnsmasq-2.85-18.el9.src.rpm	SHA-256: b3798c187382d75824f6565be5d3239f1e1ad7a88a09c6b22781f33779af6432
s390x
dnsmasq-2.85-18.el9.s390x.rpm	SHA-256: c91de494af733613d1d15c9f52019188a16556134a3eafe2c9f0982869404fbe
dnsmasq-debuginfo-2.85-18.el9.s390x.rpm	SHA-256: 2851f5b72577c538e5b73812ca9cc8d7e7946e93cd0858e795da12a6a186c554
dnsmasq-debugsource-2.85-18.el9.s390x.rpm	SHA-256: a5340f271cfa29ae25c7c301c80242ece8951fbaa6da2f41994fc56a17f72b06
dnsmasq-utils-2.85-18.el9.s390x.rpm	SHA-256: 413e9e052108d80a01395c7773f3fee192b811af1dd237cc16c65cb0ec766330
dnsmasq-utils-debuginfo-2.85-18.el9.s390x.rpm	SHA-256: 3f879e2755f6d1c05d1efdacdcef30c02771daeccb886b8393f99410a680f8fc

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

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