250 lines
13 KiB
JSON
250 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-2026-93231",
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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": "2026-09-17T16:02:15.095Z",
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"datePublished": "2026-09-24T15:29:19.786Z",
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"dateUpdated": "2026-10-30T12:36:28.057Z"
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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": "2026-10-30T12:36:28.057Z"
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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\nlockd: fix swapped arguments in nlmsvc_match_ip()\n\nWhen releasing locks by server IP address via /proc/fs/nfsd/unlock_ip,\nnlmsvc_unlock_all_by_ip() calls nlm_traverse_files() with the server\nsockaddr as the opaque @data argument:\n\n\tnlm_traverse_files(server_addr, nlmsvc_match_ip, NULL);\n\nThe match callback is later invoked from nlm_traverse_locks() as:\n\n\tmatch(lockhost, host);\n\nwhere the first argument is the nlm_host that owns the lock, and the\nsecond argument is the @data that was originally passed down (here the\nserver sockaddr). This is the convention every other match callback\nrelies on (nlmsvc_mark_host(), nlmsvc_same_host(), nlmsvc_is_client()):\narg1 is the real nlm_host, arg2 is the caller-supplied reference value.\n\nnlmsvc_match_ip() has had these two arguments reversed ever since the\nunlock-by-IP feature was introduced in commit 4373ea84c84d (\"lockd:\nunlock lockd locks associated with a given server ip\"):\n\n\treturn rpc_cmp_addr(nlm_srcaddr(host), datap);\n\nHere @host is actually the server sockaddr, so nlm_srcaddr(host)\ndereferences a struct sockaddr as a struct nlm_host and reads garbage\nat the offset of h_srcaddr; meanwhile @datap is actually the lock\nowner's nlm_host but is compared as a sockaddr. As a result the\ncomparison practically never matches and locks are not released for the\nrequested IP.\n\nSwap the arguments so the lock owner's source address is compared\nagainst the requested server address:\n\n\treturn rpc_cmp_addr(nlm_srcaddr(datap), (struct sockaddr *)host);\n\n[ cel: fix the misleading typedef parameter names too ]"
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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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"fs/lockd/lockd.h",
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"fs/lockd/svcsubs.c"
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],
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"versions": [
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{
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"version": "4373ea84c84d8a96e99d3da99e813d3e36d1bd11",
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"lessThan": "e7124d223c5a2dfb4c1a7b2eea24375edc355a10",
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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": "4373ea84c84d8a96e99d3da99e813d3e36d1bd11",
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"lessThan": "68282cbc197b280711f66c4cf05165f911785bcc",
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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": "4373ea84c84d8a96e99d3da99e813d3e36d1bd11",
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"lessThan": "cfbf21d21aea1a83d5ff38d50466a655e0a6a31d",
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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": "4373ea84c84d8a96e99d3da99e813d3e36d1bd11",
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"lessThan": "4fe2db296c9cd897dd1fe06cc0ae9cbc13beefc5",
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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": "4373ea84c84d8a96e99d3da99e813d3e36d1bd11",
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"lessThan": "d34c2ac447fe0490ede828e0143e2cbcb59e6c77",
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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": "4373ea84c84d8a96e99d3da99e813d3e36d1bd11",
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"lessThan": "0d72e78c9d38d5377a059a4837f82b65b91cdcf6",
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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": "4373ea84c84d8a96e99d3da99e813d3e36d1bd11",
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"lessThan": "21bcb609e0ab1dd60f39ca3498f85808933bcc9f",
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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": "4373ea84c84d8a96e99d3da99e813d3e36d1bd11",
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"lessThan": "b9060689f49dc663e9a3d069c4a65ff63a836e66",
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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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"fs/lockd/lockd.h",
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"fs/lockd/svcsubs.c"
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],
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"versions": [
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{
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"version": "2.6.26",
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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": "2.6.26",
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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": "6.6.160",
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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": "6.12.112",
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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": "6.18.51",
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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": "7.2.4",
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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": "2.6.26",
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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": "2.6.26",
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"versionEndExcluding": "5.15.224"
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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": "2.6.26",
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"versionEndExcluding": "6.1.191"
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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": "2.6.26",
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"versionEndExcluding": "6.6.160"
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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": "2.6.26",
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"versionEndExcluding": "6.12.112"
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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": "2.6.26",
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"versionEndExcluding": "6.18.51"
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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": "2.6.26",
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"versionEndExcluding": "7.2.4"
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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": "2.6.26",
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"versionEndExcluding": "7.3"
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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/e7124d223c5a2dfb4c1a7b2eea24375edc355a10"
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},
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{
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"url": "https://git.kernel.org/stable/c/68282cbc197b280711f66c4cf05165f911785bcc"
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},
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{
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"url": "https://git.kernel.org/stable/c/cfbf21d21aea1a83d5ff38d50466a655e0a6a31d"
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},
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{
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"url": "https://git.kernel.org/stable/c/4fe2db296c9cd897dd1fe06cc0ae9cbc13beefc5"
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},
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{
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"url": "https://git.kernel.org/stable/c/d34c2ac447fe0490ede828e0143e2cbcb59e6c77"
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},
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{
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"url": "https://git.kernel.org/stable/c/0d72e78c9d38d5377a059a4837f82b65b91cdcf6"
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},
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{
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"url": "https://git.kernel.org/stable/c/21bcb609e0ab1dd60f39ca3498f85808933bcc9f"
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},
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{
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"url": "https://git.kernel.org/stable/c/b9060689f49dc663e9a3d069c4a65ff63a836e66"
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}
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],
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"title": "lockd: fix swapped arguments in nlmsvc_match_ip()",
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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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} |