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-2026-80851",
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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": "2026-09-04T15:55:01.667Z",
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"dateUpdated": "2026-10-30T12:31:13.973Z"
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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": "2026-10-30T12:31:13.973Z"
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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\ngtp: serialize PDP context updates\n\nPDP contexts can be deleted through GTP_CMD_DELPDP or while the GTP\nnetwork device is being unregistered. The latter is serialized by RTNL,\nbut the generic-netlink delete path only holds RCU.\n\nRunning both paths concurrently can therefore make both paths delete the\nsame PDP context. The issue was found through static analysis and\nreproduced on a KASAN-enabled kernel by a simple two-thread program\nracing GTP_CMD_DELPDP against RTM_DELLINK:\n\n Oops: general protection fault, probably for non-canonical address\n KASAN: maybe wild-memory-access in range\n [0xdead000000000120-0xdead000000000127]\n RIP: gtp_genl_del_pdp+0x1c1/0x420 [gtp]\n RBP: dead000000000122\n\nThe second deletion dereferenced the poisoned hlist pprev pointer.\n\nSerialize gtp_pdp_add(), gtp_genl_del_pdp(), and gtp_dellink() with a\nshared mutex. Keep the mutex held until the final use of a PDP context in\nthe NEWPDP path, and keep the RCU read-side section around the complete\nPDP context use in the DELPDP path."
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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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"drivers/net/gtp.c"
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],
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"versions": [
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{
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"version": "459aa660eb1d8ce67080da1983bb81d716aa5a69",
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"lessThan": "d8ebf8875fb97b3e39aa226af78f9c619e96ee31",
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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": "459aa660eb1d8ce67080da1983bb81d716aa5a69",
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"lessThan": "6e5472c1c1619793cbadb02bccf7d2d9f826052f",
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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": "459aa660eb1d8ce67080da1983bb81d716aa5a69",
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"lessThan": "d9a83492ffc99f228d91873473e3820300525f00",
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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": "459aa660eb1d8ce67080da1983bb81d716aa5a69",
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"lessThan": "b4ac2a5ce5a96ec21ed48f60d30b52b1fb22c62a",
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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": "459aa660eb1d8ce67080da1983bb81d716aa5a69",
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"lessThan": "5f77ddb2756340c1b05381674ca025d52998005e",
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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": "459aa660eb1d8ce67080da1983bb81d716aa5a69",
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"lessThan": "3d950e98f74af9611925a5226edced02155f6ed1",
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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": "459aa660eb1d8ce67080da1983bb81d716aa5a69",
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"lessThan": "6df4f05bc2991467939d7d80b6f7e121559cc3df",
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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": "459aa660eb1d8ce67080da1983bb81d716aa5a69",
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"lessThan": "1e995498d29784a06a2b2899370a1926cfc8410d",
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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": "459aa660eb1d8ce67080da1983bb81d716aa5a69",
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"lessThan": "498386b6d402737db1e2eeed4c385acbf0ef9e34",
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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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"drivers/net/gtp.c"
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],
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"versions": [
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{
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"version": "4.7",
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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": "4.7",
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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": "5.10.273",
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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": "5.15.224",
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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": "6.1.191",
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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": "6.6.158",
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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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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "5.10.273"
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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": "4.7",
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"versionEndExcluding": "6.6.158"
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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": "4.7",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/d8ebf8875fb97b3e39aa226af78f9c619e96ee31"
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},
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{
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"url": "https://git.kernel.org/stable/c/6e5472c1c1619793cbadb02bccf7d2d9f826052f"
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},
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{
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"url": "https://git.kernel.org/stable/c/d9a83492ffc99f228d91873473e3820300525f00"
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"url": "https://git.kernel.org/stable/c/b4ac2a5ce5a96ec21ed48f60d30b52b1fb22c62a"
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},
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{
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"url": "https://git.kernel.org/stable/c/5f77ddb2756340c1b05381674ca025d52998005e"
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},
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{
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"url": "https://git.kernel.org/stable/c/3d950e98f74af9611925a5226edced02155f6ed1"
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},
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{
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"url": "https://git.kernel.org/stable/c/6df4f05bc2991467939d7d80b6f7e121559cc3df"
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},
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{
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"url": "https://git.kernel.org/stable/c/1e995498d29784a06a2b2899370a1926cfc8410d"
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},
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{
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"url": "https://git.kernel.org/stable/c/498386b6d402737db1e2eeed4c385acbf0ef9e34"
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}
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],
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"title": "gtp: serialize PDP context updates",
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"x_generator": {
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