CVE-2026-53006
In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6_rcv() Caching saddr and daddr before pskb_pull() is problematic since skb->head can change. Remove these temporary variables: - We only access &ipv6_hdr(skb)->saddr and &ipv6_hdr(skb)->daddr when net_dbg_ratelimited() is called in the slow path. - Avoid potential future misuse after pskb_pull() call.
- Score
- CVSS 3.1 9.8 Critical
- Status
- Modified - 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- Published
- 2026-06-24
- Last modified
- 2026-10-19
- Weaknesses
- CWE-416, CWE-825
Affected products
- Linux Kernel (Linux)
- Enterprise Linux (Redhat)
- Enterprise Linux Eus (Redhat)
- Rhel Aus (Redhat)
- Rhel E4s (Redhat)
- Rhel Eus (Redhat)
- Rhel Eus Long Life (Redhat)
- Rhel Tus (Redhat)
- Simatic S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
- Simatic S7-1500 Cpu 1518f-4 Pndp Mfp (Siemens)
- Siplus S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
References
- https://git.kernel.org/stable/c/7bff2c8fe5c35ae58bf73104f53db3676e6e5d94
- https://git.kernel.org/stable/c/aff0f28f5be803de2452ce702631c021fcd9ce8a
- https://git.kernel.org/stable/c/38bdbc897c0d83a3e2b925a51b69420f1feba29a
- https://git.kernel.org/stable/c/0069813e6ca9309eca78022bcb3aeb1e9ef90a12
- https://git.kernel.org/stable/c/1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7
- https://git.kernel.org/stable/c/7c66b368c6ff453f99cb39d84af93e908e51eef2
- https://git.kernel.org/stable/c/085e31a811ef234ef8c3e219c4636dfebfe7e10f
- https://git.kernel.org/stable/c/f996edd7615e686ada141b7f3395025729ff8ccb
- https://access.redhat.com/security/cve/CVE-2026-53006
- https://bugzilla.redhat.com/show_bug.cgi?id=2492363
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53006.json
- https://access.redhat.com/errata/RHSA-2026:64767
- https://access.redhat.com/errata/RHSA-2026:47017
- https://access.redhat.com/errata/RHSA-2026:67723
- https://access.redhat.com/errata/RHSA-2026:65712
- https://access.redhat.com/errata/RHSA-2026:62568
- https://access.redhat.com/errata/RHSA-2026:45192
- https://access.redhat.com/errata/RHSA-2026:47011
- https://access.redhat.com/errata/RHSA-2026:65710
- https://access.redhat.com/errata/RHSA-2026:65711
- https://access.redhat.com/errata/RHSA-2026:61932
- https://access.redhat.com/errata/RHSA-2026:47010
- https://access.redhat.com/errata/RHSA-2026:67721
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
