185 lines
9.2 KiB
JSON
185 lines
9.2 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-2025-68219",
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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": "2025-12-16T13:41:40.256Z",
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"datePublished": "2025-12-16T13:57:13.461Z",
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"dateUpdated": "2026-10-30T12:23:09.486Z"
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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": "2026-10-30T12:23:09.486Z"
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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\ncifs: fix memory leak in smb3_fs_context_parse_param error path\n\nAdd proper cleanup of ctx->source and fc->source to the\ncifs_parse_mount_err error handler. This ensures that memory allocated\nfor the source strings is correctly freed on all error paths, matching\nthe cleanup already performed in the success path by\nsmb3_cleanup_fs_context_contents().\nPointers are also set to NULL after freeing to prevent potential\ndouble-free issues.\n\nThis change fixes a memory leak originally detected by syzbot. The\nleak occurred when processing Opt_source mount options if an error\nhappened after ctx->source and fc->source were successfully\nallocated but before the function completed.\n\nThe specific leak sequence was:\n1. ctx->source = smb3_fs_context_fullpath(ctx, '/') allocates memory\n2. fc->source = kstrdup(ctx->source, GFP_KERNEL) allocates more memory\n3. A subsequent error jumps to cifs_parse_mount_err\n4. The old error handler freed passwords but not the source strings,\ncausing the memory to leak.\n\nThis issue was not addressed by commit e8c73eb7db0a (\"cifs: client:\nfix memory leak in smb3_fs_context_parse_param\"), which only fixed\nleaks from repeated fsconfig() calls but not this error path.\n\nPatch updated with minor change suggested by kernel test robot"
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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/smb/client/fs_context.c"
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],
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"versions": [
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{
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"version": "24e0a1eff9e2b9835a6e7c17039dfb6ecfd81f1f",
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"lessThan": "a8071fd69df335362be5ecf5df5a167fd1eb5853",
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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": "24e0a1eff9e2b9835a6e7c17039dfb6ecfd81f1f",
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"lessThan": "7627864dc3121f39e220f5253a227edf472de59e",
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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": "24e0a1eff9e2b9835a6e7c17039dfb6ecfd81f1f",
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"lessThan": "48d69290270891f988e72edddd9688c20515421d",
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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": "24e0a1eff9e2b9835a6e7c17039dfb6ecfd81f1f",
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"lessThan": "37010021d7e0341bb241ca00bcbae31f2c50b23f",
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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": "24e0a1eff9e2b9835a6e7c17039dfb6ecfd81f1f",
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"lessThan": "7e4d9120cfa413dd34f4f434befc5dbe6c38b2e5",
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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/smb/client/fs_context.c"
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],
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"versions": [
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{
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"version": "5.11",
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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": "5.11",
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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": "6.6.118",
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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": "6.12.60",
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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": "6.17.10",
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"lessThanOrEqual": "6.17.*",
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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",
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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": "5.11",
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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": "5.11",
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"versionEndExcluding": "6.6.118"
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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": "5.11",
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"versionEndExcluding": "6.12.60"
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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": "5.11",
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"versionEndExcluding": "6.17.10"
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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": "5.11",
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"versionEndExcluding": "6.18"
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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/a8071fd69df335362be5ecf5df5a167fd1eb5853"
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},
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{
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"url": "https://git.kernel.org/stable/c/7627864dc3121f39e220f5253a227edf472de59e"
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},
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{
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"url": "https://git.kernel.org/stable/c/48d69290270891f988e72edddd9688c20515421d"
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},
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{
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"url": "https://git.kernel.org/stable/c/37010021d7e0341bb241ca00bcbae31f2c50b23f"
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},
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{
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"url": "https://git.kernel.org/stable/c/7e4d9120cfa413dd34f4f434befc5dbe6c38b2e5"
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}
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],
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"title": "cifs: fix memory leak in smb3_fs_context_parse_param error path",
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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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} |