189 lines
9.9 KiB
JSON
189 lines
9.9 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-2026-23050",
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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": "2026-01-13T15:37:45.950Z",
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"datePublished": "2026-02-04T16:04:19.279Z",
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"dateUpdated": "2026-10-30T12:23:41.926Z"
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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": "2026-10-30T12:23:41.926Z"
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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\npNFS: Fix a deadlock when returning a delegation during open()\n\nBen Coddington reports seeing a hang in the following stack trace:\n 0 [ffffd0b50e1774e0] __schedule at ffffffff9ca05415\n 1 [ffffd0b50e177548] schedule at ffffffff9ca05717\n 2 [ffffd0b50e177558] bit_wait at ffffffff9ca061e1\n 3 [ffffd0b50e177568] __wait_on_bit at ffffffff9ca05cfb\n 4 [ffffd0b50e1775c8] out_of_line_wait_on_bit at ffffffff9ca05ea5\n 5 [ffffd0b50e177618] pnfs_roc at ffffffffc154207b [nfsv4]\n 6 [ffffd0b50e1776b8] _nfs4_proc_delegreturn at ffffffffc1506586 [nfsv4]\n 7 [ffffd0b50e177788] nfs4_proc_delegreturn at ffffffffc1507480 [nfsv4]\n 8 [ffffd0b50e1777f8] nfs_do_return_delegation at ffffffffc1523e41 [nfsv4]\n 9 [ffffd0b50e177838] nfs_inode_set_delegation at ffffffffc1524a75 [nfsv4]\n 10 [ffffd0b50e177888] nfs4_process_delegation at ffffffffc14f41dd [nfsv4]\n 11 [ffffd0b50e1778a0] _nfs4_opendata_to_nfs4_state at ffffffffc1503edf [nfsv4]\n 12 [ffffd0b50e1778c0] _nfs4_open_and_get_state at ffffffffc1504e56 [nfsv4]\n 13 [ffffd0b50e177978] _nfs4_do_open at ffffffffc15051b8 [nfsv4]\n 14 [ffffd0b50e1779f8] nfs4_do_open at ffffffffc150559c [nfsv4]\n 15 [ffffd0b50e177a80] nfs4_atomic_open at ffffffffc15057fb [nfsv4]\n 16 [ffffd0b50e177ad0] nfs4_file_open at ffffffffc15219be [nfsv4]\n 17 [ffffd0b50e177b78] do_dentry_open at ffffffff9c09e6ea\n 18 [ffffd0b50e177ba8] vfs_open at ffffffff9c0a082e\n 19 [ffffd0b50e177bd0] dentry_open at ffffffff9c0a0935\n\nThe issue is that the delegreturn is being asked to wait for a layout\nreturn that cannot complete because a state recovery was initiated. The\nstate recovery cannot complete until the open() finishes processing the\ndelegations it was given.\n\nThe solution is to propagate the existing flags that indicate a\nnon-blocking call to the function pnfs_roc(), so that it knows not to\nwait in this situation."
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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/nfs/nfs4proc.c",
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"fs/nfs/pnfs.c",
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"fs/nfs/pnfs.h"
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],
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"versions": [
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{
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"version": "29ade5db12930ec60133f6a02791f4b1a4af2943",
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"lessThan": "05a685b38dbca489d5f21eac9e7f20959344076a",
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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": "29ade5db12930ec60133f6a02791f4b1a4af2943",
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"lessThan": "c57387d447a2bcbaea009ba5f9497adf3de5edeb",
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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": "29ade5db12930ec60133f6a02791f4b1a4af2943",
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"lessThan": "a316fd9d3065b753b03d802530004aea481512cc",
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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": "29ade5db12930ec60133f6a02791f4b1a4af2943",
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"lessThan": "d6c75aa9d607044d1e5c8498eff0259eed356c32",
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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": "29ade5db12930ec60133f6a02791f4b1a4af2943",
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"lessThan": "857bf9056291a16785ae3be1d291026b2437fc48",
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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/nfs/nfs4proc.c",
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"fs/nfs/pnfs.c",
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"fs/nfs/pnfs.h"
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],
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"versions": [
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{
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"version": "4.10",
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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": "4.10",
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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": "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": "6.6.130",
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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": "6.12.67",
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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": "6.18.7",
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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": "6.19",
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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": "4.10",
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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": "4.10",
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"versionEndExcluding": "6.6.130"
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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": "4.10",
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"versionEndExcluding": "6.12.67"
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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": "4.10",
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"versionEndExcluding": "6.18.7"
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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": "4.10",
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"versionEndExcluding": "6.19"
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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/05a685b38dbca489d5f21eac9e7f20959344076a"
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},
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{
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"url": "https://git.kernel.org/stable/c/c57387d447a2bcbaea009ba5f9497adf3de5edeb"
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},
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{
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"url": "https://git.kernel.org/stable/c/a316fd9d3065b753b03d802530004aea481512cc"
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},
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{
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"url": "https://git.kernel.org/stable/c/d6c75aa9d607044d1e5c8498eff0259eed356c32"
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},
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{
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"url": "https://git.kernel.org/stable/c/857bf9056291a16785ae3be1d291026b2437fc48"
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}
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],
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"title": "pNFS: Fix a deadlock when returning a delegation during open()",
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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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} |