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kernel: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr()

🗓️ 09 Mar 2026 00:51:57Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Kernel vulnerability: BUG in pskb_expand_head caused by calipso_skbuff_setattr; fixed by restricting skb_cow headroom use.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64bpftool0:4.18.0-553.111.1.el8_10bpftool-0:4.18.0-553.111.1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8ppc64lebpftool0:4.18.0-553.111.1.el8_10bpftool-0:4.18.0-553.111.1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8s390xbpftool0:4.18.0-553.111.1.el8_10bpftool-0:4.18.0-553.111.1.el8_10.s390x.rpm
Red Hat Enterprise Linux8x86_64bpftool0:4.18.0-553.111.1.el8_10bpftool-0:4.18.0-553.111.1.el8_10.x86_64.rpm
Red Hat Enterprise Linux8aarch64bpftool-debuginfo0:4.18.0-553.111.1.el8_10bpftool-debuginfo-0:4.18.0-553.111.1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8ppc64lebpftool-debuginfo0:4.18.0-553.111.1.el8_10bpftool-debuginfo-0:4.18.0-553.111.1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8s390xbpftool-debuginfo0:4.18.0-553.111.1.el8_10bpftool-debuginfo-0:4.18.0-553.111.1.el8_10.s390x.rpm
Red Hat Enterprise Linux8x86_64bpftool-debuginfo0:4.18.0-553.111.1.el8_10bpftool-debuginfo-0:4.18.0-553.111.1.el8_10.x86_64.rpm
Red Hat Enterprise Linux8aarch64kernel0:4.18.0-553.111.1.el8_10kernel-0:4.18.0-553.111.1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8ppc64lekernel0:4.18.0-553.111.1.el8_10kernel-0:4.18.0-553.111.1.el8_10.ppc64le.rpm
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28 Jun 2026 09:34Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.15.5
EPSS0.00114
SSVC
CWE-190
kernel bugskb headroomcalipso setattrskb expand headproof of conceptlinux kernel
4