269 lines
13 KiB
JSON
269 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-80848",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-08-26T14:34:25.797Z",
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"datePublished": "2026-09-04T15:54:58.427Z",
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"dateUpdated": "2026-10-19T08:44:42.445Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-19T08:44:42.445Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: espintcp: fix UAF during close\n\nZDI reported and analyzed a race condition during close for espintcp\nsockets:\n\n espintcp_close() frees emsg->skb via kfree_skb() without holding\n any socket lock. Concurrently, the xfrm_trans_reinject work queue\n invokes esp_output_tcp_finish() -> espintcp_push_skb() ->\n espintcp_push_msgs() -> skb_send_sock_locked(), which reads the\n same skb as a data source.\n\nFix this by adding a synchronize_rcu() call after resetting sk_prot,\nsince esp_output_tcp_finish() runs under RCU and won't use a socket\nwith sk_prot == &tcp_prot. Simply taking the socket lock in\nespintcp_close() could lead to leaks, if esp_output_tcp_finish()\nre-adds an skb in the slot we just freed. After this, the existing\nbarrier() is no longer needed."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/xfrm/espintcp.c"
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],
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"versions": [
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{
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"version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
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"lessThan": "29121c5e6591da527e8e36ddac7120dc527f574d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
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"lessThan": "ed5d9102190c45fc70121c036b0626b740040b75",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
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"lessThan": "4bc0dfa28dca6fc0084203732695968049c44072",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
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"lessThan": "ff8dd7a932f34409a56e1b91a1219340f17457e9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
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"lessThan": "4b31a875693c480c611519faca46216514e3e052",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
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"lessThan": "24efebecf415ba264adba0f0491cec436463a14f",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
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"lessThan": "eb3bbf29c723fe75c0eb92be14f0ec92971fe272",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
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"lessThan": "54b41ad14da9a981131ab6e4d3f79321a503ea5d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e27cca96cd68fa2c6814c90f9a1cfd36bb68c593",
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"lessThan": "deb232e884877bf10b4ce2580909eedec986c284",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/xfrm/espintcp.c"
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],
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"versions": [
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{
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"version": "5.6",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.6",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.269",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.220",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.187",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.156",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.108",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.49",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.13",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.3",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "5.10.269"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "5.15.220"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "6.1.187"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "6.6.156"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "6.12.108"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "6.18.49"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.6",
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"versionEndExcluding": "7.1.13"
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},
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{
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{
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/29121c5e6591da527e8e36ddac7120dc527f574d"
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},
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{
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"url": "https://git.kernel.org/stable/c/ed5d9102190c45fc70121c036b0626b740040b75"
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},
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{
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"url": "https://git.kernel.org/stable/c/4bc0dfa28dca6fc0084203732695968049c44072"
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},
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{
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"url": "https://git.kernel.org/stable/c/ff8dd7a932f34409a56e1b91a1219340f17457e9"
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},
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{
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"url": "https://git.kernel.org/stable/c/4b31a875693c480c611519faca46216514e3e052"
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},
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{
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"url": "https://git.kernel.org/stable/c/24efebecf415ba264adba0f0491cec436463a14f"
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},
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{
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"url": "https://git.kernel.org/stable/c/eb3bbf29c723fe75c0eb92be14f0ec92971fe272"
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},
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{
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"url": "https://git.kernel.org/stable/c/54b41ad14da9a981131ab6e4d3f79321a503ea5d"
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},
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{
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"url": "https://git.kernel.org/stable/c/deb232e884877bf10b4ce2580909eedec986c284"
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}
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],
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"title": "xfrm: espintcp: fix UAF during close",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |