{"api_version":"1","generated_at":"2026-06-03T11:06:18+00:00","cve":"CVE-2026-45914","urls":{"html":"https://cve.report/CVE-2026-45914","api":"https://cve.report/api/cve/CVE-2026-45914.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45914","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45914"},"summary":{"title":"Revert \"hwmon: (ibmpex) fix use-after-free in high/low store\"","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"hwmon: (ibmpex) fix use-after-free in high/low store\"\n\nThis reverts commit 6946c726c3f4c36f0f049e6f97e88c510b15f65d.\n\nJean Delvare points out that the patch does not completely\nfix the reported problem, that it in fact introduces a\n(new) race condition, and that it may actually not be needed in\nthe first place.\n\nVarious AI reviews agree. Specific and relevant AI feedback:\n\n\"\nThis reordering sets the driver data to NULL before removing the sensor\nattributes in the loop below.\n\nibmpex_show_sensor() retrieves this driver data via dev_get_drvdata() but\ndoes not check if it is NULL before dereferencing it to access\ndata->sensors[].\n\nIf a userspace process reads a sensor file (like temp1_input) while this\ndelete function is running, could it race with the dev_set_drvdata(...,\nNULL) call here and crash in ibmpex_show_sensor()?\n\nWould it be safer to keep the original order where device_remove_file() is\ncalled before clearing the driver data? device_remove_file() should wait\nfor any active sysfs callbacks to complete, which might already prevent the\nuse-after-free this patch intends to fix.\n\"\n\nRevert the offending patch. If it can be shown that the originally reported\nalleged race condition does indeed exist, it can always be re-introduced\nwith a complete fix.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:06","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/894d9c7aab68fd0c70c78b1d03c8fa589fb0f67d","name":"https://git.kernel.org/stable/c/894d9c7aab68fd0c70c78b1d03c8fa589fb0f67d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/914b47c9b824d3d74f31c764163edf93302100b1","name":"https://git.kernel.org/stable/c/914b47c9b824d3d74f31c764163edf93302100b1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/14a38784e09aebc21207dc32fffa05247fc3dd64","name":"https://git.kernel.org/stable/c/14a38784e09aebc21207dc32fffa05247fc3dd64","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/05112ba67c824ab416cd54307c0b50aba9f0047a","name":"https://git.kernel.org/stable/c/05112ba67c824ab416cd54307c0b50aba9f0047a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/efd68429f23fb4015b0ebc2392334059e06fad18","name":"https://git.kernel.org/stable/c/efd68429f23fb4015b0ebc2392334059e06fad18","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8bde3e395a85017f12af2b0ba5c3684f5af9c006","name":"https://git.kernel.org/stable/c/8bde3e395a85017f12af2b0ba5c3684f5af9c006","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f448acd86835a650f9ea83460b9ca347d3aafba5","name":"https://git.kernel.org/stable/c/f448acd86835a650f9ea83460b9ca347d3aafba5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45914","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45914","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3ce9b7ae9d4d148672b35147aaf7987a4f82bb94 05112ba67c824ab416cd54307c0b50aba9f0047a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 533ead425f8109b02fecc7e72d612b8898ec347a efd68429f23fb4015b0ebc2392334059e06fad18 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fa37adcf1d564ef58b9dfb01b6c36d35c5294bad f448acd86835a650f9ea83460b9ca347d3aafba5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 68d62e5bebbd118b763e8bb210d5cf2198ef450c 914b47c9b824d3d74f31c764163edf93302100b1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.252 5.10.* 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":"45914","cve":"CVE-2026-45914","epss":"0.000240000","percentile":"0.073320000","score_date":"2026-06-01","updated_at":"2026-06-02 00:05:21"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hwmon/ibmpex.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"05112ba67c824ab416cd54307c0b50aba9f0047a","status":"affected","version":"3ce9b7ae9d4d148672b35147aaf7987a4f82bb94","versionType":"git"},{"lessThan":"efd68429f23fb4015b0ebc2392334059e06fad18","status":"affected","version":"533ead425f8109b02fecc7e72d612b8898ec347a","versionType":"git"},{"lessThan":"f448acd86835a650f9ea83460b9ca347d3aafba5","status":"affected","version":"fa37adcf1d564ef58b9dfb01b6c36d35c5294bad","versionType":"git"},{"lessThan":"914b47c9b824d3d74f31c764163edf93302100b1","status":"affected","version":"68d62e5bebbd118b763e8bb210d5cf2198ef450c","versionType":"git"},{"lessThan":"14a38784e09aebc21207dc32fffa05247fc3dd64","status":"affected","version":"5aa2139201667c1f644601e4529c4acd6bf8db5a","versionType":"git"},{"lessThan":"894d9c7aab68fd0c70c78b1d03c8fa589fb0f67d","status":"affected","version":"6946c726c3f4c36f0f049e6f97e88c510b15f65d","versionType":"git"},{"lessThan":"8bde3e395a85017f12af2b0ba5c3684f5af9c006","status":"affected","version":"6946c726c3f4c36f0f049e6f97e88c510b15f65d","versionType":"git"},{"lessThan":"5.10.252","status":"affected","version":"5.10.248","versionType":"semver"},{"lessThan":"6.1.165","status":"affected","version":"6.1.160","versionType":"semver"},{"lessThan":"6.6.128","status":"affected","version":"6.6.120","versionType":"semver"},{"lessThan":"6.12.75","status":"affected","version":"6.12.64","versionType":"semver"},{"lessThan":"6.18.14","status":"affected","version":"6.18.3","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hwmon/ibmpex.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.252","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":"5.10.248","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.165","versionStartIncluding":"6.1.160","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.128","versionStartIncluding":"6.6.120","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.75","versionStartIncluding":"6.12.64","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.14","versionStartIncluding":"6.18.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.4","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"hwmon: (ibmpex) fix use-after-free in high/low store\"\n\nThis reverts commit 6946c726c3f4c36f0f049e6f97e88c510b15f65d.\n\nJean Delvare points out that the patch does not completely\nfix the reported problem, that it in fact introduces a\n(new) race condition, and that it may actually not be needed in\nthe first place.\n\nVarious AI reviews agree. Specific and relevant AI feedback:\n\n\"\nThis reordering sets the driver data to NULL before removing the sensor\nattributes in the loop below.\n\nibmpex_show_sensor() retrieves this driver data via dev_get_drvdata() but\ndoes not check if it is NULL before dereferencing it to access\ndata->sensors[].\n\nIf a userspace process reads a sensor file (like temp1_input) while this\ndelete function is running, could it race with the dev_set_drvdata(...,\nNULL) call here and crash in ibmpex_show_sensor()?\n\nWould it be safer to keep the original order where device_remove_file() is\ncalled before clearing the driver data? device_remove_file() should wait\nfor any active sysfs callbacks to complete, which might already prevent the\nuse-after-free this patch intends to fix.\n\"\n\nRevert the offending patch. If it can be shown that the originally reported\nalleged race condition does indeed exist, it can always be re-introduced\nwith a complete fix."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:17:29.426Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/05112ba67c824ab416cd54307c0b50aba9f0047a"},{"url":"https://git.kernel.org/stable/c/efd68429f23fb4015b0ebc2392334059e06fad18"},{"url":"https://git.kernel.org/stable/c/f448acd86835a650f9ea83460b9ca347d3aafba5"},{"url":"https://git.kernel.org/stable/c/914b47c9b824d3d74f31c764163edf93302100b1"},{"url":"https://git.kernel.org/stable/c/14a38784e09aebc21207dc32fffa05247fc3dd64"},{"url":"https://git.kernel.org/stable/c/894d9c7aab68fd0c70c78b1d03c8fa589fb0f67d"},{"url":"https://git.kernel.org/stable/c/8bde3e395a85017f12af2b0ba5c3684f5af9c006"}],"title":"Revert \"hwmon: (ibmpex) fix use-after-free in high/low store\"","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45914","datePublished":"2026-05-27T12:17:29.426Z","dateReserved":"2026-05-13T15:03:33.085Z","dateUpdated":"2026-05-27T12:17:29.426Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:06","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45914","Ordinal":"1","Title":"Revert \"hwmon: (ibmpex) fix use-after-free in high/low store\"","CVE":"CVE-2026-45914","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45914","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"hwmon: (ibmpex) fix use-after-free in high/low store\"\n\nThis reverts commit 6946c726c3f4c36f0f049e6f97e88c510b15f65d.\n\nJean Delvare points out that the patch does not completely\nfix the reported problem, that it in fact introduces a\n(new) race condition, and that it may actually not be needed in\nthe first place.\n\nVarious AI reviews agree. Specific and relevant AI feedback:\n\n\"\nThis reordering sets the driver data to NULL before removing the sensor\nattributes in the loop below.\n\nibmpex_show_sensor() retrieves this driver data via dev_get_drvdata() but\ndoes not check if it is NULL before dereferencing it to access\ndata->sensors[].\n\nIf a userspace process reads a sensor file (like temp1_input) while this\ndelete function is running, could it race with the dev_set_drvdata(...,\nNULL) call here and crash in ibmpex_show_sensor()?\n\nWould it be safer to keep the original order where device_remove_file() is\ncalled before clearing the driver data? device_remove_file() should wait\nfor any active sysfs callbacks to complete, which might already prevent the\nuse-after-free this patch intends to fix.\n\"\n\nRevert the offending patch. If it can be shown that the originally reported\nalleged race condition does indeed exist, it can always be re-introduced\nwith a complete fix.","Type":"Description","Title":"Revert \"hwmon: (ibmpex) fix use-after-free in high/low store\""}]}}}