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CVE

CVE-2026-53006

ipv6: fix possible UAF in icmpv6_rcv()
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CVE

CVE-2026-53006

ipv6: fix possible UAF in icmpv6_rcv()

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 &ipv6hdr(skb)->saddr and &ipv6hdr(skb)->daddr

  when netdbgratelimited() is called in the slow path.

  • Avoid potential future misuse after pskb_pull() call.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://git.kernel.org/stable/c/0069813e6ca9309eca78022bcb3aeb1e9ef90a12, https://git.kernel.org/stable/c/085e31a811ef234ef8c3e219c4636dfebfe7e10f, https://git.kernel.org/stable/c/1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7, https://git.kernel.org/stable/c/38bdbc897c0d83a3e2b925a51b69420f1feba29a, https://git.kernel.org/stable/c/7bff2c8fe5c35ae58bf73104f53db3676e6e5d94, https://git.kernel.org/stable/c/7c66b368c6ff453f99cb39d84af93e908e51eef2, https://git.kernel.org/stable/c/aff0f28f5be803de2452ce702631c021fcd9ce8a, https://git.kernel.org/stable/c/f996edd7615e686ada141b7f3395025729ff8ccb, https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53006.json, https://access.redhat.com/errata/RHSA-2026:45192, https://access.redhat.com/errata/RHSA-2026:47010, https://access.redhat.com/errata/RHSA-2026:47011, https://access.redhat.com/errata/RHSA-2026:47017, https://access.redhat.com/security/cve/CVE-2026-53006, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53006.json, https://nvd.nist.gov/vuln/detail/CVE-2026-53006, https://bugzilla.redhat.com/show_bug.cgi?id=2492363, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00395%
EPSS Percentile
0.32953%
Introduced Version
4b3418fba0fe819197e3359d5ddbef84ba2c59de,4.4.0,5.11.0,5.16.0,6.2.0,6.7.0,6.13.0,6.19.0,0
Fix Available
f996edd7615e686ada141b7f3395025729ff8ccb,5.10.258,5.15.209,6.1.175,6.6.141,6.12.91,6.18.33,7.0.10,0:5.14.0-687.30.1.el9_8,0:4.18.0-553.148.1.rt7.489.el8_10,0:4.18.0-553.148.1.el8_10,6.1.176-1,5.10.259-1,6.1.176-1~deb11u1,6.12.94-1,4.15.0-254.266,4.15.0-1195.208,5.4.0-1162.173~18.04.1,4.15.0-1205.220,4.15.0-1188.205,5.4.0-1165.174~18.04.1,5.4.0-234.254~18.04.1,5.4.0-1108.113~18.04.1,4.15.0-1177.182,4.15.0-1158.169,5.4.0-1145.158~18.04.1,5.4.0-234.254,5.4.0-1162.173,5.15.0-1112.119~20.04.1,5.4.0-1167.173,5.15.0-1117.126~20.04.1,5.15.0-1117.126~20.04.2,5.4.0-1121.128,5.4.0-1165.174,5.15.0-186.196~20.04.1,5.4.0-1108.113,5.15.0-1106.110~20.04.1,5.15.0-1107.113~20.04.1,5.4.0-1066.69,5.15.0-184.194~20.04.1,5.15.0-1064.66~20.04.1,5.4.0-1160.170,5.15.0-1109.115~20.04.1,5.4.0-1145.158,5.4.0-1080.84,6.8.0-136.136,6.8.0-1061.64,6.8.0-1063.71,6.8.0-1062.69,6.8.0-1064.72,6.8.0-1059.67,6.8.0-1046.50,7.0.0-28.28~24.04.1,6.8.0-1061.62,6.8.0-136.136.2,6.8.0-1059.62,7.0.0-1016.16~24.04.1,6.8.0-1059.62.1,6.8.0-1030.31,6.8.0-1058.61,6.8.0-1061.65,6.8.0-1033.34,5.15.0-186.196,5.15.0-1112.119,6.8.0-1061.64~22.04.1,5.15.0-1117.126,6.8.0-1063.71~22.04.1,6.8.0-1062.69~22.04.1,5.15.0-1112.122,6.8.0-1064.72~22.04.1,5.15.0-1108.114,5.15.0-1095.103,6.8.0-136.136~22.04.1,5.15.0-1106.110,6.8.0-1061.62~22.04.1,5.15.0-1107.113,5.15.0-1104.109,5.15.0-184.194,6.8.0-136.136.2~22.04.1,5.15.0-1107.108,6.8.0-1059.62~22.04.1,5.15.0-1064.66,5.15.0-1053.53,5.15.0-1109.115,6.8.0-1058.61~22.04.1,6.8.0-136.136~22.04.3,5.15.0-1075.79,0:5.10.258-257.1041.amzn2,0:1.0-0.amzn2,0:5.15.209-147.245.amzn2,1:6.18.33-63.124.amzn2023,1:1.0-0.amzn2023,1:6.1.175-219.357.amzn2023,1:6.12.92-122.166.amzn2023

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