{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31713", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.133Z", "datePublished": "2026-05-01T13:56:09.254Z", "dateUpdated": "2026-05-01T13:56:09.254Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-01T13:56:09.254Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: abort on fatal signal during sync init\n\nWhen sync init is used and the server exits for some reason (error, crash)\nwhile processing FUSE_INIT, the filesystem creation will hang. The reason\nis that while all other threads will exit, the mounting thread (or process)\nwill keep the device fd open, which will prevent an abort from happening.\n\nThis is a regression from the async mount case, where the mount was done\nfirst, and the FUSE_INIT processing afterwards, in which case there's no\nsuch recursive syscall keeping the fd open."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/fuse/dev.c", "fs/fuse/fuse_i.h", "fs/fuse/inode.c"], "versions": [{"version": "dfb84c33079497bf27058b15780e1c7bba4c371b", "lessThan": "0c7fca880a40a209a9c92be14143996d14b93ff6", "status": "affected", "versionType": "git"}, {"version": "dfb84c33079497bf27058b15780e1c7bba4c371b", "lessThan": "300e812b882a174dca675d8028684001ad5826bc", "status": "affected", "versionType": "git"}, {"version": "dfb84c33079497bf27058b15780e1c7bba4c371b", "lessThan": "204aa22a686bfee48daca7db620c1e017615f2ff", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/fuse/dev.c", "fs/fuse/fuse_i.h", "fs/fuse/inode.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.25", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.2", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.18.25"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.0.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0c7fca880a40a209a9c92be14143996d14b93ff6"}, {"url": "https://git.kernel.org/stable/c/300e812b882a174dca675d8028684001ad5826bc"}, {"url": "https://git.kernel.org/stable/c/204aa22a686bfee48daca7db620c1e017615f2ff"}], "title": "fuse: abort on fatal signal during sync init", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: abort on fatal signal during sync init\n\nWhen sync init is used and the server exits for some reason (error, crash)\nwhile processing FUSE_INIT, the filesystem creation will hang. The reason\nis that while all other threads will exit, the mounting thread (or process)\nwill keep the device fd open, which will prevent an abort from happening.\n\nThis is a regression from the async mount case, where the mount was done\nfirst, and the FUSE_INIT processing afterwards, in which case there's no\nsuch recursive syscall keeping the fd open."}], "id": "CVE-2026-31713", "lastModified": "2026-05-01T15:24:14.893", "metrics": {}, "published": "2026-05-01T14:16:21.390", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0c7fca880a40a209a9c92be14143996d14b93ff6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/204aa22a686bfee48daca7db620c1e017615f2ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/300e812b882a174dca675d8028684001ad5826bc"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: fuse: abort on fatal signal during sync init", "id": "2464392", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464392"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["A flaw was found in the Linux kernel's Filesystem in Userspace (FUSE) component. When using synchronous initialization (sync init), if the FUSE server exits unexpectedly while processing the FUSE_INIT request, the filesystem creation process can hang. This issue occurs because the mounting thread keeps the device file descriptor open, preventing the operation from aborting. A local user could exploit this to cause a Denial of Service (DoS) by making the filesystem creation unresponsive."], "name": "CVE-2026-31713", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31713\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31713\nhttps://lore.kernel.org/linux-cve-announce/2026050123-CVE-2026-31713-2109@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dfb84c33079497bf27058b15780e1c7bba4c371b,0c7fca880a40a209a9c92be14143996d14b93ff6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dfb84c33079497bf27058b15780e1c7bba4c371b,300e812b882a174dca675d8028684001ad5826bc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dfb84c33079497bf27058b15780e1c7bba4c371b,204aa22a686bfee48daca7db620c1e017615f2ff)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.25,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.2,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-01T20:00:11.919024+00:00", "updated": "2026-05-02T13:00:06.336296+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}