{"api_version":"1","generated_at":"2026-05-31T09:36:41+00:00","cve":"CVE-2026-45960","urls":{"html":"https://cve.report/CVE-2026-45960","api":"https://cve.report/api/cve/CVE-2026-45960.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45960","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45960"},"summary":{"title":"hfsplus: return error when node already exists in hfs_bnode_create","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhfsplus: return error when node already exists in hfs_bnode_create\n\nWhen hfs_bnode_create() finds that a node is already hashed (which should\nnot happen in normal operation), it currently returns the existing node\nwithout incrementing its reference count. This causes a reference count\ninconsistency that leads to a kernel panic when the node is later freed\nin hfs_bnode_put():\n\n    kernel BUG at fs/hfsplus/bnode.c:676!\n    BUG_ON(!atomic_read(&node->refcnt))\n\nThis scenario can occur when hfs_bmap_alloc() attempts to allocate a node\nthat is already in use (e.g., when node 0's bitmap bit is incorrectly\nunset), or due to filesystem corruption.\n\nReturning an existing node from a create path is not normal operation.\n\nFix this by returning ERR_PTR(-EEXIST) instead of the node when it's\nalready hashed. This properly signals the error condition to callers,\nwhich already check for IS_ERR() return values.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:12","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/7b57ada854b32310f224abd61bcfec2d5790ff0a","name":"https://git.kernel.org/stable/c/7b57ada854b32310f224abd61bcfec2d5790ff0a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2e6ff6a6fc69cc17ed10c9cb6242935d52acd52d","name":"https://git.kernel.org/stable/c/2e6ff6a6fc69cc17ed10c9cb6242935d52acd52d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/51838112d9c22502333c3085ca0c0d691e7093c6","name":"https://git.kernel.org/stable/c/51838112d9c22502333c3085ca0c0d691e7093c6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2e9185a42e0e237c74435fd092b7c34537c62156","name":"https://git.kernel.org/stable/c/2e9185a42e0e237c74435fd092b7c34537c62156","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/986455135b95f32c1f142068e451098fc751749e","name":"https://git.kernel.org/stable/c/986455135b95f32c1f142068e451098fc751749e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/507a1de58c21c95ad7c44afccaf1222d1c42246b","name":"https://git.kernel.org/stable/c/507a1de58c21c95ad7c44afccaf1222d1c42246b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d8a73cc46c8462a969a7516131feb3096f4c49d3","name":"https://git.kernel.org/stable/c/d8a73cc46c8462a969a7516131feb3096f4c49d3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1ca428769cb4737a25bd32fb4d1573cc09eeaeef","name":"https://git.kernel.org/stable/c/1ca428769cb4737a25bd32fb4d1573cc09eeaeef","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45960","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45960","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 634725a92938b0f282b17cec0b007dca77adebd2 1ca428769cb4737a25bd32fb4d1573cc09eeaeef git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 634725a92938b0f282b17cec0b007dca77adebd2 507a1de58c21c95ad7c44afccaf1222d1c42246b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 634725a92938b0f282b17cec0b007dca77adebd2 986455135b95f32c1f142068e451098fc751749e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 634725a92938b0f282b17cec0b007dca77adebd2 7b57ada854b32310f224abd61bcfec2d5790ff0a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.202 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.165 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.128 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.75 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.14 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.4 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":{"cve_year":"2026","cve_id":"45960","cve":"CVE-2026-45960","epss":"0.000240000","percentile":"0.073840000","score_date":"2026-05-30","updated_at":"2026-05-31 00:14:03"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/hfsplus/bnode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1ca428769cb4737a25bd32fb4d1573cc09eeaeef","status":"affected","version":"634725a92938b0f282b17cec0b007dca77adebd2","versionType":"git"},{"lessThan":"507a1de58c21c95ad7c44afccaf1222d1c42246b","status":"affected","version":"634725a92938b0f282b17cec0b007dca77adebd2","versionType":"git"},{"lessThan":"986455135b95f32c1f142068e451098fc751749e","status":"affected","version":"634725a92938b0f282b17cec0b007dca77adebd2","versionType":"git"},{"lessThan":"7b57ada854b32310f224abd61bcfec2d5790ff0a","status":"affected","version":"634725a92938b0f282b17cec0b007dca77adebd2","versionType":"git"},{"lessThan":"51838112d9c22502333c3085ca0c0d691e7093c6","status":"affected","version":"634725a92938b0f282b17cec0b007dca77adebd2","versionType":"git"},{"lessThan":"2e6ff6a6fc69cc17ed10c9cb6242935d52acd52d","status":"affected","version":"634725a92938b0f282b17cec0b007dca77adebd2","versionType":"git"},{"lessThan":"2e9185a42e0e237c74435fd092b7c34537c62156","status":"affected","version":"634725a92938b0f282b17cec0b007dca77adebd2","versionType":"git"},{"lessThan":"d8a73cc46c8462a969a7516131feb3096f4c49d3","status":"affected","version":"634725a92938b0f282b17cec0b007dca77adebd2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/hfsplus/bnode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.16"},{"lessThan":"2.6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.252","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.202","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.165","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","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":"5.10.252","versionStartIncluding":"2.6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.202","versionStartIncluding":"2.6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.165","versionStartIncluding":"2.6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.128","versionStartIncluding":"2.6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.75","versionStartIncluding":"2.6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.14","versionStartIncluding":"2.6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.4","versionStartIncluding":"2.6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"2.6.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhfsplus: return error when node already exists in hfs_bnode_create\n\nWhen hfs_bnode_create() finds that a node is already hashed (which should\nnot happen in normal operation), it currently returns the existing node\nwithout incrementing its reference count. This causes a reference count\ninconsistency that leads to a kernel panic when the node is later freed\nin hfs_bnode_put():\n\n    kernel BUG at fs/hfsplus/bnode.c:676!\n    BUG_ON(!atomic_read(&node->refcnt))\n\nThis scenario can occur when hfs_bmap_alloc() attempts to allocate a node\nthat is already in use (e.g., when node 0's bitmap bit is incorrectly\nunset), or due to filesystem corruption.\n\nReturning an existing node from a create path is not normal operation.\n\nFix this by returning ERR_PTR(-EEXIST) instead of the node when it's\nalready hashed. This properly signals the error condition to callers,\nwhich already check for IS_ERR() return values."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:18:16.851Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/1ca428769cb4737a25bd32fb4d1573cc09eeaeef"},{"url":"https://git.kernel.org/stable/c/507a1de58c21c95ad7c44afccaf1222d1c42246b"},{"url":"https://git.kernel.org/stable/c/986455135b95f32c1f142068e451098fc751749e"},{"url":"https://git.kernel.org/stable/c/7b57ada854b32310f224abd61bcfec2d5790ff0a"},{"url":"https://git.kernel.org/stable/c/51838112d9c22502333c3085ca0c0d691e7093c6"},{"url":"https://git.kernel.org/stable/c/2e6ff6a6fc69cc17ed10c9cb6242935d52acd52d"},{"url":"https://git.kernel.org/stable/c/2e9185a42e0e237c74435fd092b7c34537c62156"},{"url":"https://git.kernel.org/stable/c/d8a73cc46c8462a969a7516131feb3096f4c49d3"}],"title":"hfsplus: return error when node already exists in hfs_bnode_create","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45960","datePublished":"2026-05-27T12:18:16.851Z","dateReserved":"2026-05-13T15:03:33.089Z","dateUpdated":"2026-05-27T12:18:16.851Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:12","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45960","Ordinal":"1","Title":"hfsplus: return error when node already exists in hfs_bnode_crea","CVE":"CVE-2026-45960","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45960","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nhfsplus: return error when node already exists in hfs_bnode_create\n\nWhen hfs_bnode_create() finds that a node is already hashed (which should\nnot happen in normal operation), it currently returns the existing node\nwithout incrementing its reference count. This causes a reference count\ninconsistency that leads to a kernel panic when the node is later freed\nin hfs_bnode_put():\n\n    kernel BUG at fs/hfsplus/bnode.c:676!\n    BUG_ON(!atomic_read(&node->refcnt))\n\nThis scenario can occur when hfs_bmap_alloc() attempts to allocate a node\nthat is already in use (e.g., when node 0's bitmap bit is incorrectly\nunset), or due to filesystem corruption.\n\nReturning an existing node from a create path is not normal operation.\n\nFix this by returning ERR_PTR(-EEXIST) instead of the node when it's\nalready hashed. This properly signals the error condition to callers,\nwhich already check for IS_ERR() return values.","Type":"Description","Title":"hfsplus: return error when node already exists in hfs_bnode_crea"}]}}}