{"api_version":"1","generated_at":"2026-04-23T01:32:22+00:00","cve":"CVE-2026-31435","urls":{"html":"https://cve.report/CVE-2026-31435","api":"https://cve.report/api/cve/CVE-2026-31435.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-31435","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-31435"},"summary":{"title":"netfs: Fix read abandonment during retry","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix read abandonment during retry\n\nUnder certain circumstances, all the remaining subrequests from a read\nrequest will get abandoned during retry.  The abandonment process expects\nthe 'subreq' variable to be set to the place to start abandonment from, but\nit doesn't always have a useful value (it will be uninitialised on the\nfirst pass through the loop and it may point to a deleted subrequest on\nlater passes).\n\nFix the first jump to \"abandon:\" to set subreq to the start of the first\nsubrequest expected to need retry (which, in this abandonment case, turned\nout unexpectedly to no longer have NEED_RETRY set).\n\nAlso clear the subreq pointer after discarding superfluous retryable\nsubrequests to cause an oops if we do try to access it.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-22 14:16:36","updated_at":"2026-04-22 14:16:36"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/8f2f2bd128a8d9edbc1e785760da54ada3df69b7","name":"https://git.kernel.org/stable/c/8f2f2bd128a8d9edbc1e785760da54ada3df69b7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3e5fd8f53b575ff2188f82071da19c977ca56c41","name":"https://git.kernel.org/stable/c/3e5fd8f53b575ff2188f82071da19c977ca56c41","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7e57523490cd2efb52b1ea97f2e0a74c0fb634cd","name":"https://git.kernel.org/stable/c/7e57523490cd2efb52b1ea97f2e0a74c0fb634cd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-31435","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31435","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ee4cdf7ba857a894ad1650d6ab77669cbbfa329e 3e5fd8f53b575ff2188f82071da19c977ca56c41 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ee4cdf7ba857a894ad1650d6ab77669cbbfa329e 8f2f2bd128a8d9edbc1e785760da54ada3df69b7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ee4cdf7ba857a894ad1650d6ab77669cbbfa329e 7e57523490cd2efb52b1ea97f2e0a74c0fb634cd 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 6.18.21 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.11 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/netfs/read_retry.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3e5fd8f53b575ff2188f82071da19c977ca56c41","status":"affected","version":"ee4cdf7ba857a894ad1650d6ab77669cbbfa329e","versionType":"git"},{"lessThan":"8f2f2bd128a8d9edbc1e785760da54ada3df69b7","status":"affected","version":"ee4cdf7ba857a894ad1650d6ab77669cbbfa329e","versionType":"git"},{"lessThan":"7e57523490cd2efb52b1ea97f2e0a74c0fb634cd","status":"affected","version":"ee4cdf7ba857a894ad1650d6ab77669cbbfa329e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/netfs/read_retry.c"],"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":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.21","versionStartIncluding":"6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.11","versionStartIncluding":"6.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","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 read abandonment during retry\n\nUnder certain circumstances, all the remaining subrequests from a read\nrequest will get abandoned during retry.  The abandonment process expects\nthe 'subreq' variable to be set to the place to start abandonment from, but\nit doesn't always have a useful value (it will be uninitialised on the\nfirst pass through the loop and it may point to a deleted subrequest on\nlater passes).\n\nFix the first jump to \"abandon:\" to set subreq to the start of the first\nsubrequest expected to need retry (which, in this abandonment case, turned\nout unexpectedly to no longer have NEED_RETRY set).\n\nAlso clear the subreq pointer after discarding superfluous retryable\nsubrequests to cause an oops if we do try to access it."}],"providerMetadata":{"dateUpdated":"2026-04-22T13:53:35.032Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3e5fd8f53b575ff2188f82071da19c977ca56c41"},{"url":"https://git.kernel.org/stable/c/8f2f2bd128a8d9edbc1e785760da54ada3df69b7"},{"url":"https://git.kernel.org/stable/c/7e57523490cd2efb52b1ea97f2e0a74c0fb634cd"}],"title":"netfs: Fix read abandonment during retry","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-31435","datePublished":"2026-04-22T13:53:35.032Z","dateReserved":"2026-03-09T15:48:24.089Z","dateUpdated":"2026-04-22T13:53:35.032Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-22 14:16:36","lastModifiedDate":"2026-04-22 14:16:36","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"31435","Ordinal":"1","Title":"netfs: Fix read abandonment during retry","CVE":"CVE-2026-31435","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"31435","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix read abandonment during retry\n\nUnder certain circumstances, all the remaining subrequests from a read\nrequest will get abandoned during retry.  The abandonment process expects\nthe 'subreq' variable to be set to the place to start abandonment from, but\nit doesn't always have a useful value (it will be uninitialised on the\nfirst pass through the loop and it may point to a deleted subrequest on\nlater passes).\n\nFix the first jump to \"abandon:\" to set subreq to the start of the first\nsubrequest expected to need retry (which, in this abandonment case, turned\nout unexpectedly to no longer have NEED_RETRY set).\n\nAlso clear the subreq pointer after discarding superfluous retryable\nsubrequests to cause an oops if we do try to access it.","Type":"Description","Title":"netfs: Fix read abandonment during retry"}]}}}