{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-53006: ipv6: fix possible UAF in icmpv6_rcv()","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-53006","status":"final","version":"1","initial_release_date":"2026-06-24T16:29:17.691Z","current_release_date":"2026-06-28T06:37:57.367Z","revision_history":[{"date":"2026-06-24T16:29:17.691Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: fix possible UAF in icmpv6_rcv()\n\nCaching saddr and daddr before pskb_pull() is problematic\nsince skb->head can change.\n\nRemove these temporary variables:\n\n- We only access &ipv6_hdr(skb)->saddr and &ipv6_hdr(skb)->daddr\n  when net_dbg_ratelimited() is called in the slow path.\n\n- Avoid potential future misuse after pskb_pull() call.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-53006 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-53006"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-53006"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/7bff2c8fe5c35ae58bf73104f53db3676e6e5d94"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/aff0f28f5be803de2452ce702631c021fcd9ce8a"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/38bdbc897c0d83a3e2b925a51b69420f1feba29a"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/0069813e6ca9309eca78022bcb3aeb1e9ef90a12"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/7c66b368c6ff453f99cb39d84af93e908e51eef2"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/085e31a811ef234ef8c3e219c4636dfebfe7e10f"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/f996edd7615e686ada141b7f3395025729ff8ccb"}]},"product_tree":{"branches":[{"category":"vendor","name":"Linux","branches":[{"category":"product_name","name":"Linux","branches":[{"category":"product_version_range","name":">=4b3418fba0fe819197e3359d5ddbef84ba2c59de <7bff2c8fe5c35ae58bf73104f53db3676e6e5d94","product":{"name":"Linux Linux >=4b3418fba0fe819197e3359d5ddbef84ba2c59de <7bff2c8fe5c35ae58bf73104f53db3676e6e5d94","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4b3418fba0fe819197e3359d5ddbef84ba2c59de <aff0f28f5be803de2452ce702631c021fcd9ce8a","product":{"name":"Linux Linux >=4b3418fba0fe819197e3359d5ddbef84ba2c59de <aff0f28f5be803de2452ce702631c021fcd9ce8a","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4b3418fba0fe819197e3359d5ddbef84ba2c59de <38bdbc897c0d83a3e2b925a51b69420f1feba29a","product":{"name":"Linux Linux >=4b3418fba0fe819197e3359d5ddbef84ba2c59de <38bdbc897c0d83a3e2b925a51b69420f1feba29a","product_id":"CSAFPID-3","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4b3418fba0fe819197e3359d5ddbef84ba2c59de <0069813e6ca9309eca78022bcb3aeb1e9ef90a12","product":{"name":"Linux Linux >=4b3418fba0fe819197e3359d5ddbef84ba2c59de <0069813e6ca9309eca78022bcb3aeb1e9ef90a12","product_id":"CSAFPID-4","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4b3418fba0fe819197e3359d5ddbef84ba2c59de <1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7","product":{"name":"Linux Linux >=4b3418fba0fe819197e3359d5ddbef84ba2c59de <1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7","product_id":"CSAFPID-5","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4b3418fba0fe819197e3359d5ddbef84ba2c59de <7c66b368c6ff453f99cb39d84af93e908e51eef2","product":{"name":"Linux Linux >=4b3418fba0fe819197e3359d5ddbef84ba2c59de <7c66b368c6ff453f99cb39d84af93e908e51eef2","product_id":"CSAFPID-6","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4b3418fba0fe819197e3359d5ddbef84ba2c59de <085e31a811ef234ef8c3e219c4636dfebfe7e10f","product":{"name":"Linux Linux >=4b3418fba0fe819197e3359d5ddbef84ba2c59de <085e31a811ef234ef8c3e219c4636dfebfe7e10f","product_id":"CSAFPID-7","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4b3418fba0fe819197e3359d5ddbef84ba2c59de <f996edd7615e686ada141b7f3395025729ff8ccb","product":{"name":"Linux Linux >=4b3418fba0fe819197e3359d5ddbef84ba2c59de <f996edd7615e686ada141b7f3395025729ff8ccb","product_id":"CSAFPID-8","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}}]}]},{"category":"vendor","name":"Linux","branches":[{"category":"product_name","name":"Linux","branches":[{"category":"product_version","name":"4.4","product":{"name":"Linux Linux 4.4","product_id":"CSAFPID-9","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"0","product":{"name":"Linux Linux 0","product_id":"CSAFPID-10","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"5.10.258","product":{"name":"Linux Linux 5.10.258","product_id":"CSAFPID-11","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"5.15.209","product":{"name":"Linux Linux 5.15.209","product_id":"CSAFPID-12","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"6.1.175","product":{"name":"Linux Linux 6.1.175","product_id":"CSAFPID-13","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"6.6.141","product":{"name":"Linux Linux 6.6.141","product_id":"CSAFPID-14","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"6.12.91","product":{"name":"Linux Linux 6.12.91","product_id":"CSAFPID-15","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"6.18.33","product":{"name":"Linux Linux 6.18.33","product_id":"CSAFPID-16","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"7.0.10","product":{"name":"Linux Linux 7.0.10","product_id":"CSAFPID-17","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"7.1","product":{"name":"Linux Linux 7.1","product_id":"CSAFPID-18","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:4.4:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-53006","title":"ipv6: fix possible UAF in icmpv6_rcv()","notes":[{"category":"description","text":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: fix possible UAF in icmpv6_rcv()\n\nCaching saddr and daddr before pskb_pull() is problematic\nsince skb->head can change.\n\nRemove these temporary variables:\n\n- We only access &ipv6_hdr(skb)->saddr and &ipv6_hdr(skb)->daddr\n  when net_dbg_ratelimited() is called in the slow path.\n\n- Avoid potential future misuse after pskb_pull() call.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5","CSAFPID-6","CSAFPID-7","CSAFPID-8","CSAFPID-9"],"fixed":["CSAFPID-10","CSAFPID-11","CSAFPID-12","CSAFPID-13","CSAFPID-14","CSAFPID-15","CSAFPID-16","CSAFPID-17","CSAFPID-18"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5","CSAFPID-6","CSAFPID-7","CSAFPID-8","CSAFPID-9"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 0, 0069813e6ca9309eca78022bcb3aeb1e9ef90a12, 085e31a811ef234ef8c3e219c4636dfebfe7e10f, 1e1f0f89ee4692a64be3f3707ff8ac1ae57b03e7, 38bdbc897c0d83a3e2b925a51b69420f1feba29a, 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1, 7bff2c8fe5c35ae58bf73104f53db3676e6e5d94, 7c66b368c6ff453f99cb39d84af93e908e51eef2, aff0f28f5be803de2452ce702631c021fcd9ce8a, f996edd7615e686ada141b7f3395025729ff8ccb.","product_ids":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5","CSAFPID-6","CSAFPID-7","CSAFPID-8","CSAFPID-9"]}]}]}