{"api_version":"1","generated_at":"2026-08-17T11:26:46+00:00","cve":"CVE-2026-74542","urls":{"html":"https://cve.report/CVE-2026-74542","api":"https://cve.report/api/cve/CVE-2026-74542.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74542","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74542"},"summary":{"title":"netfs: Fix folio_queue ENOMEM in writeback by adding a mempool","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix folio_queue ENOMEM in writeback by adding a mempool\n\nFix the handling of folio_queue allocation failure in writeback by adding a\nmempool and passing in gfp_t flags to the rolling buffer functions that\nallocate memory, using the mempool if gfp != GFP_KERNEL.\n\nThis is then extended upwards and the gfp to be used for a request is stored\nin the netfs_io_request struct and is then used for both requests and\nsubrequests, eliminating the sleeping loops there.\n\nThe failure caused:\n\n    folio != NULL\n    WARNING: fs/netfs/write_issue.c:603 at netfs_writepages+0x883/0xa10 fs/netfs/write_issue.c:603, CPU#3: syz.0.17/5919","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 13:17:59","updated_at":"2026-08-17 06:19:51"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/3f6d7f8a5416d852648d15a05e895f1195ee8a85","name":"https://git.kernel.org/stable/c/3f6d7f8a5416d852648d15a05e895f1195ee8a85","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1d78d56c43ef3768183e8370e7367b162700e049","name":"https://git.kernel.org/stable/c/1d78d56c43ef3768183e8370e7367b162700e049","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74542","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74542","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cd0277ed0c188dd40e7744e89299af7b78831ca4 3f6d7f8a5416d852648d15a05e895f1195ee8a85 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cd0277ed0c188dd40e7744e89299af7b78831ca4 1d78d56c43ef3768183e8370e7367b162700e049 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"74542","cve":"CVE-2026-74542","epss":"0.001550000","percentile":"0.051990000","score_date":"2026-08-16","updated_at":"2026-08-17 00:01:04"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/netfs/buffered_read.c","fs/netfs/internal.h","fs/netfs/main.c","fs/netfs/objects.c","fs/netfs/read_pgpriv2.c","fs/netfs/rolling_buffer.c","fs/netfs/write_issue.c","include/linux/netfs.h","include/linux/rolling_buffer.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3f6d7f8a5416d852648d15a05e895f1195ee8a85","status":"affected","version":"cd0277ed0c188dd40e7744e89299af7b78831ca4","versionType":"git"},{"lessThan":"1d78d56c43ef3768183e8370e7367b162700e049","status":"affected","version":"cd0277ed0c188dd40e7744e89299af7b78831ca4","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/netfs/buffered_read.c","fs/netfs/internal.h","fs/netfs/main.c","fs/netfs/objects.c","fs/netfs/read_pgpriv2.c","fs/netfs/rolling_buffer.c","fs/netfs/write_issue.c","include/linux/netfs.h","include/linux/rolling_buffer.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.12"},{"lessThan":"6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix folio_queue ENOMEM in writeback by adding a mempool\n\nFix the handling of folio_queue allocation failure in writeback by adding a\nmempool and passing in gfp_t flags to the rolling buffer functions that\nallocate memory, using the mempool if gfp != GFP_KERNEL.\n\nThis is then extended upwards and the gfp to be used for a request is stored\nin the netfs_io_request struct and is then used for both requests and\nsubrequests, eliminating the sleeping loops there.\n\nThe failure caused:\n\n    folio != NULL\n    WARNING: fs/netfs/write_issue.c:603 at netfs_writepages+0x883/0xa10 fs/netfs/write_issue.c:603, CPU#3: syz.0.17/5919"}],"providerMetadata":{"dateUpdated":"2026-08-17T05:21:27.220Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3f6d7f8a5416d852648d15a05e895f1195ee8a85"},{"url":"https://git.kernel.org/stable/c/1d78d56c43ef3768183e8370e7367b162700e049"}],"title":"netfs: Fix folio_queue ENOMEM in writeback by adding a mempool","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74542","datePublished":"2026-08-15T12:27:52.741Z","dateReserved":"2026-08-15T05:44:03.914Z","dateUpdated":"2026-08-17T05:21:27.220Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 13:17:59","lastModifiedDate":"2026-08-17 06:19:51","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74542","Ordinal":"1","Title":"netfs: Fix folio_queue ENOMEM in writeback by adding a mempool","CVE":"CVE-2026-74542","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74542","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix folio_queue ENOMEM in writeback by adding a mempool\n\nFix the handling of folio_queue allocation failure in writeback by adding a\nmempool and passing in gfp_t flags to the rolling buffer functions that\nallocate memory, using the mempool if gfp != GFP_KERNEL.\n\nThis is then extended upwards and the gfp to be used for a request is stored\nin the netfs_io_request struct and is then used for both requests and\nsubrequests, eliminating the sleeping loops there.\n\nThe failure caused:\n\n    folio != NULL\n    WARNING: fs/netfs/write_issue.c:603 at netfs_writepages+0x883/0xa10 fs/netfs/write_issue.c:603, CPU#3: syz.0.17/5919","Type":"Description","Title":"netfs: Fix folio_queue ENOMEM in writeback by adding a mempool"}]}}}