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Red Hat Product Errata RHSA-2026:27355 - Security Advisory
Issued:
2026-06-19
Updated:
2026-06-19

RHSA-2026:27355 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kernel security update

Type/Severity

Security Advisory: Important

Red Hat Lightspeed patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)

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.

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

The system must be rebooted for this update to take effect.

Affected Products

  • Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.8 x86_64
  • Red Hat Enterprise Linux Server - TUS 8.8 x86_64
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64

Fixes

  • BZ - 2479492 - CVE-2026-46331 kernel: net/sched: act_pedit: extend the writable skb range per key

CVEs

  • CVE-2026-46331

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.8

SRPM
kernel-4.18.0-477.148.1.el8_8.src.rpm SHA-256: ca56b214add6f1ecc21f0763eb276bcc26ebd567d0edef8f1dc13fe471dcceba
x86_64
bpftool-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 1ce276f23b4341a60abc75bdc16c42fcc42bcfa9ed78479a18dfd99cfa354683
bpftool-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 15df199fc8c2da49dcfd18b18b097e5e88f6abc1cce5ebfdf9015252ab273a9f
kernel-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 67176ba32c81a07173a7414fb25b1c1ad9c954ddcba3977cc585a5a65e4b9964
kernel-abi-stablelists-4.18.0-477.148.1.el8_8.noarch.rpm SHA-256: 3330787e308e222a7058b506a638dbfa5942bbbe39b5538e2761e5d5d75e54bf
kernel-core-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 65b301a58fce707fd4312b911e619ff76e6bd1514cf973e3ac916b3c2541f5c9
kernel-cross-headers-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 47355ff7da4e582a0519b39edcce4eb4e7f580600b5dd47cba5a638abaebca0b
kernel-debug-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 26beb82f1b1a11b67cf64a3c6efc994d806d54c68e53aafc1b803a2d1914ceba
kernel-debug-core-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: ddde561da842e56bce904a2733a79724e7ac25a15c4cd33d16ffe1e01e4a3613
kernel-debug-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: f54d1da5d929b9690df491e4d061627bcc287c73d5bc315ccf78d6b8498dec58
kernel-debug-devel-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 884cbd2dcf99f41cfd05668d44691a20015e01f201f404a0e43cd721f24122e0
kernel-debug-modules-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 4f7d7a8986218bb92f238dc0242f17624636be4fc7301a475a38461e3b270d0f
kernel-debug-modules-extra-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: b984938993c789370f2495297b7e5964a3df86040603817220a678765b177b57
kernel-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 0bf9654dbd53ad5951eccb7b1b0a07a398feef5ca053aa6ad1815d0b3f207212
kernel-debuginfo-common-x86_64-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: ff32d1e65a6adae118f693b22fb8b0d3739db38657d8063833deb22c486a9bfc
kernel-devel-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: e3108f5ad4bed56ff989db28d0489c7eae728f6b6a05056e3adc975a076391ad
kernel-doc-4.18.0-477.148.1.el8_8.noarch.rpm SHA-256: e4c5a257ebf3d3197112927bc8006965da3cfe85fdb2d2740b6c971eac0d7912
kernel-headers-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 400ec904fc4f43988f82f64f89664b84233d29fe4986d46c173eaf45c608cc40
kernel-modules-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 4058e728bbe05e24e1a62ddc41491a104c841e3ec568ffae2e5bbe34c84a78d6
kernel-modules-extra-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 00057dbacff1a4b6d88f4fdf053bd313f58c7dc4afbc0f3472fc43719ece0182
kernel-tools-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 10d8a4efc2e419c10d3a879dddf1e6dfd3e80e2993f280a0d9137231c6ba303c
kernel-tools-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 9d13c5b2ed4bac7c1a4a55adcf2d71ca20e97a5bf850231731a8a0606d407a39
kernel-tools-libs-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 422a68ded2fa67166c76814baaeed56e3723ca39c2abf366a9a4921381ec00ac
perf-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 1e7959d3e6ede51910cc49e9c3f88733f918edc59f34d14f39dfad5b4f9448a6
perf-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: eef778e805addf375f2970f62738f167215cc98cdd3f925c2ea62b6d5290c214
python3-perf-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 976e4e5b1b43b90cd763ebe0bfbbba866477312bbe7ea4586447046d57214ccd
python3-perf-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 47782d1d48fd8fd8e69c64450178c82a62df2579343084d87897836159e62eb7

Red Hat Enterprise Linux Server - TUS 8.8

SRPM
kernel-4.18.0-477.148.1.el8_8.src.rpm SHA-256: ca56b214add6f1ecc21f0763eb276bcc26ebd567d0edef8f1dc13fe471dcceba
x86_64
bpftool-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 1ce276f23b4341a60abc75bdc16c42fcc42bcfa9ed78479a18dfd99cfa354683
bpftool-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 15df199fc8c2da49dcfd18b18b097e5e88f6abc1cce5ebfdf9015252ab273a9f
kernel-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 67176ba32c81a07173a7414fb25b1c1ad9c954ddcba3977cc585a5a65e4b9964
kernel-abi-stablelists-4.18.0-477.148.1.el8_8.noarch.rpm SHA-256: 3330787e308e222a7058b506a638dbfa5942bbbe39b5538e2761e5d5d75e54bf
kernel-core-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 65b301a58fce707fd4312b911e619ff76e6bd1514cf973e3ac916b3c2541f5c9
kernel-cross-headers-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 47355ff7da4e582a0519b39edcce4eb4e7f580600b5dd47cba5a638abaebca0b
kernel-debug-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 26beb82f1b1a11b67cf64a3c6efc994d806d54c68e53aafc1b803a2d1914ceba
kernel-debug-core-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: ddde561da842e56bce904a2733a79724e7ac25a15c4cd33d16ffe1e01e4a3613
kernel-debug-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: f54d1da5d929b9690df491e4d061627bcc287c73d5bc315ccf78d6b8498dec58
kernel-debug-devel-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 884cbd2dcf99f41cfd05668d44691a20015e01f201f404a0e43cd721f24122e0
kernel-debug-modules-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 4f7d7a8986218bb92f238dc0242f17624636be4fc7301a475a38461e3b270d0f
kernel-debug-modules-extra-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: b984938993c789370f2495297b7e5964a3df86040603817220a678765b177b57
kernel-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 0bf9654dbd53ad5951eccb7b1b0a07a398feef5ca053aa6ad1815d0b3f207212
kernel-debuginfo-common-x86_64-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: ff32d1e65a6adae118f693b22fb8b0d3739db38657d8063833deb22c486a9bfc
kernel-devel-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: e3108f5ad4bed56ff989db28d0489c7eae728f6b6a05056e3adc975a076391ad
kernel-doc-4.18.0-477.148.1.el8_8.noarch.rpm SHA-256: e4c5a257ebf3d3197112927bc8006965da3cfe85fdb2d2740b6c971eac0d7912
kernel-headers-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 400ec904fc4f43988f82f64f89664b84233d29fe4986d46c173eaf45c608cc40
kernel-modules-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 4058e728bbe05e24e1a62ddc41491a104c841e3ec568ffae2e5bbe34c84a78d6
kernel-modules-extra-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 00057dbacff1a4b6d88f4fdf053bd313f58c7dc4afbc0f3472fc43719ece0182
kernel-tools-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 10d8a4efc2e419c10d3a879dddf1e6dfd3e80e2993f280a0d9137231c6ba303c
kernel-tools-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 9d13c5b2ed4bac7c1a4a55adcf2d71ca20e97a5bf850231731a8a0606d407a39
kernel-tools-libs-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 422a68ded2fa67166c76814baaeed56e3723ca39c2abf366a9a4921381ec00ac
perf-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 1e7959d3e6ede51910cc49e9c3f88733f918edc59f34d14f39dfad5b4f9448a6
perf-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: eef778e805addf375f2970f62738f167215cc98cdd3f925c2ea62b6d5290c214
python3-perf-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 976e4e5b1b43b90cd763ebe0bfbbba866477312bbe7ea4586447046d57214ccd
python3-perf-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 47782d1d48fd8fd8e69c64450178c82a62df2579343084d87897836159e62eb7

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8

SRPM
kernel-4.18.0-477.148.1.el8_8.src.rpm SHA-256: ca56b214add6f1ecc21f0763eb276bcc26ebd567d0edef8f1dc13fe471dcceba
ppc64le
bpftool-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 25523f1dba1a18fa94df43c3fcfa727d7c42fb52c3d7e9a296eeefe6835d8954
bpftool-debuginfo-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 84e1ccaca74daf22f08c7a981526496dca572e5f0277320533cb14a310f6565f
kernel-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: b66650eefec4392f294e14beb559e6b9695f46e7d715056b8aaa17e6ab13cb9a
kernel-abi-stablelists-4.18.0-477.148.1.el8_8.noarch.rpm SHA-256: 3330787e308e222a7058b506a638dbfa5942bbbe39b5538e2761e5d5d75e54bf
kernel-core-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 8874695cfcc97a06619f19fb856d911cd59dc9e3e1e4d1c85235c2036bfa6d67
kernel-cross-headers-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 7ed1eeeac0b0f1eb175f5b7dc0f71b72a7d75dc5469755bc887734b6f6d79808
kernel-debug-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: f0b2893ee0f91a9f40b595c11adba3e41059a50c9a6ef091de83dc19ad4160d5
kernel-debug-core-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 46ecbbbb73ee927aef49feba4e6460bc43df1c1d6d21ed38eff93ba1880bb353
kernel-debug-debuginfo-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 54757c303f37a01f8f9390aeafc47cdea63b1f90be1f2e47bf0a1e8773af7155
kernel-debug-devel-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 22be8e4b0e6896dfc546abcb79bf0f5233ad85d0ad0690376f34fdc9165f3864
kernel-debug-modules-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 5e720d94d3733fa5f6f78f1aabf7e8e68b09a17ca4d9ad0923e1967154250693
kernel-debug-modules-extra-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: c1bbdd6c23c62739eed9ad484ee3cafe83a2fb4553cea47a754d5740c7e2b570
kernel-debuginfo-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 874611a7464ea897bcf72bdb4d199cc303f2672f8327e45ed5af87f7cc515a91
kernel-debuginfo-common-ppc64le-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: c4f09231d5a2a2015777a5cbf6e7166bafdc8856e9c05d64e3546d95ae254ef4
kernel-devel-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 82bcd65a1536f123349bbc403ed5de98e34c305e5e379fe9f477ac61cc742f70
kernel-doc-4.18.0-477.148.1.el8_8.noarch.rpm SHA-256: e4c5a257ebf3d3197112927bc8006965da3cfe85fdb2d2740b6c971eac0d7912
kernel-headers-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: cdffe20ab59f17dd3e8d67ce5028ee8c6f290407150ce5e9056c73d274374b1a
kernel-modules-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 2b9fb2d731afe749763306d138c5a418af186fc74323bcfa966f0b4786d57686
kernel-modules-extra-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 19d1affbf7cdd8445465928ebc0975a39fb25a44e4c88b8bcabf36ae87b8a30d
kernel-tools-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 7f9997bb24000b9f43654605ea36749212189412f1b73a1a811ed201f5d56111
kernel-tools-debuginfo-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: f2819ab066e4f6ea10049e1f4c13339515dc2559a9c01b265e6ea382e358a1b5
kernel-tools-libs-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 0ca611ff70d8027f35201112ffa40ddc996ae3efe42f5d013fa0a97966137591
perf-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 3781112858663ab6b035ec971c4ce390f14a5ba215da1a4b84c81e3a7de2ade6
perf-debuginfo-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 02f9298f57e6a16bcd53c5c8695606bd2b09d16a853332d490b1832e51ca1b44
python3-perf-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 25494f844321c7760e1f44c069ff8ed983f8609638b00a44749a386c8b5b13ca
python3-perf-debuginfo-4.18.0-477.148.1.el8_8.ppc64le.rpm SHA-256: 94aed2dc1d5ec0a32665bcb0bbda80de2c4fd3ed8501997adfa9cc8dc012b10e

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8

SRPM
kernel-4.18.0-477.148.1.el8_8.src.rpm SHA-256: ca56b214add6f1ecc21f0763eb276bcc26ebd567d0edef8f1dc13fe471dcceba
x86_64
bpftool-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 1ce276f23b4341a60abc75bdc16c42fcc42bcfa9ed78479a18dfd99cfa354683
bpftool-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 15df199fc8c2da49dcfd18b18b097e5e88f6abc1cce5ebfdf9015252ab273a9f
kernel-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 67176ba32c81a07173a7414fb25b1c1ad9c954ddcba3977cc585a5a65e4b9964
kernel-abi-stablelists-4.18.0-477.148.1.el8_8.noarch.rpm SHA-256: 3330787e308e222a7058b506a638dbfa5942bbbe39b5538e2761e5d5d75e54bf
kernel-core-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 65b301a58fce707fd4312b911e619ff76e6bd1514cf973e3ac916b3c2541f5c9
kernel-cross-headers-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 47355ff7da4e582a0519b39edcce4eb4e7f580600b5dd47cba5a638abaebca0b
kernel-debug-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 26beb82f1b1a11b67cf64a3c6efc994d806d54c68e53aafc1b803a2d1914ceba
kernel-debug-core-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: ddde561da842e56bce904a2733a79724e7ac25a15c4cd33d16ffe1e01e4a3613
kernel-debug-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: f54d1da5d929b9690df491e4d061627bcc287c73d5bc315ccf78d6b8498dec58
kernel-debug-devel-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 884cbd2dcf99f41cfd05668d44691a20015e01f201f404a0e43cd721f24122e0
kernel-debug-modules-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 4f7d7a8986218bb92f238dc0242f17624636be4fc7301a475a38461e3b270d0f
kernel-debug-modules-extra-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: b984938993c789370f2495297b7e5964a3df86040603817220a678765b177b57
kernel-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 0bf9654dbd53ad5951eccb7b1b0a07a398feef5ca053aa6ad1815d0b3f207212
kernel-debuginfo-common-x86_64-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: ff32d1e65a6adae118f693b22fb8b0d3739db38657d8063833deb22c486a9bfc
kernel-devel-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: e3108f5ad4bed56ff989db28d0489c7eae728f6b6a05056e3adc975a076391ad
kernel-doc-4.18.0-477.148.1.el8_8.noarch.rpm SHA-256: e4c5a257ebf3d3197112927bc8006965da3cfe85fdb2d2740b6c971eac0d7912
kernel-headers-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 400ec904fc4f43988f82f64f89664b84233d29fe4986d46c173eaf45c608cc40
kernel-modules-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 4058e728bbe05e24e1a62ddc41491a104c841e3ec568ffae2e5bbe34c84a78d6
kernel-modules-extra-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 00057dbacff1a4b6d88f4fdf053bd313f58c7dc4afbc0f3472fc43719ece0182
kernel-tools-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 10d8a4efc2e419c10d3a879dddf1e6dfd3e80e2993f280a0d9137231c6ba303c
kernel-tools-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 9d13c5b2ed4bac7c1a4a55adcf2d71ca20e97a5bf850231731a8a0606d407a39
kernel-tools-libs-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 422a68ded2fa67166c76814baaeed56e3723ca39c2abf366a9a4921381ec00ac
perf-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 1e7959d3e6ede51910cc49e9c3f88733f918edc59f34d14f39dfad5b4f9448a6
perf-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: eef778e805addf375f2970f62738f167215cc98cdd3f925c2ea62b6d5290c214
python3-perf-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 976e4e5b1b43b90cd763ebe0bfbbba866477312bbe7ea4586447046d57214ccd
python3-perf-debuginfo-4.18.0-477.148.1.el8_8.x86_64.rpm SHA-256: 47782d1d48fd8fd8e69c64450178c82a62df2579343084d87897836159e62eb7

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