CVE-2026-74546
N/A ALL-YEARSIn the Linux kernel, the following vulnerability has been resolved: hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read If the fan data becomes 0 between the FAN_DATA_VALID() check and the FAN_PERIOD_TO_RPM() conversion, it will result in a divide-by-zero crash due to a race with a concurrent update of the cached fan value. Fix a TOCTOU issue by reading fan data once.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 7th percentile
Impact if exploited
—CVSS · not scored
- No impact metrics
Proof of concept
No public PoC is currently catalogued.
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References and research data (JSON)
Vendor product assessments
Showing 32 of 275 vendor product statements; 243 omitted. Read the full vendor advisory.
kernel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-64k-debug-devel-matched as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-debug-devel-matched
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-64k-modules as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-modules
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-debug-core as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-debug-core
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-debug-uki-virt as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-debug-uki-virt
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-modules-extra as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-modules-extra
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-64k-debug as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-debug
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-64k-devel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-devel
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-debug-core as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-debug-core
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-rt-devel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-devel
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-tools-libs as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-tools-libs
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-zfcpdump-devel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-zfcpdump-devel
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
libperf as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/libperf
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- none available: Fix deferred
kernel-abi-whitelists as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-abi-whitelists
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- no fix planned: Out of support scope
kernel-firmware as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-firmware
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- no fix planned: Out of support scope
python-perf as a component of Red Hat Enterprise Linux 6 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/python-perf
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
- no fix planned: Out of support scope
bpftool as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/bpftool
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-rt-debug as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-debug
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-tools-libs-devel as a component of Red Hat Enterprise Linux 7 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-tools-libs-devel
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-debug-modules as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-debug-modules
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-rt-debug as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-debug
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-rt-selftests-internal as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-selftests-internal
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel.src as a component of Red Hat Enterprise Linux 8 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel?arch=src
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-64k-debug-modules-core
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-cross-headers as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-cross-headers
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-devel as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-devel
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-rt-64k-core as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-64k-core
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-rt-64k-devel-matched as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-64k-devel-matched
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-debug-kvm
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-rt-modules-partner as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-rt-modules-partner
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00kernel-zfcpdump-devel-matched as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-zfcpdump-devel-matched
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00rv as a component of Red Hat Enterprise Linux 9 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/rv
Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00
References
Advisories
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74546.json Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-59739 EUVD · EUVD-2026-59739
Technical & other
- https://git.kernel.org/stable/c/689a2ea75434131d0af58aeb7d51fde40e858b4dCVE record · Linux · Updated 2026-08-19T16:38:34.886Z
NVD · CVE-2026-74546 · Updated 2026-08-19T17:21:09.453 - https://git.kernel.org/stable/c/009240d057e26831cc925feaba4c490209c1d0baCVE record · Linux · Updated 2026-08-19T16:38:34.886Z
NVD · CVE-2026-74546 · Updated 2026-08-19T17:21:09.453 - https://git.kernel.org/stable/c/d328175045176f85c15c369bd21dc551351e7935CVE record · Linux · Updated 2026-08-19T16:38:34.886Z
NVD · CVE-2026-74546 · Updated 2026-08-19T17:21:09.453 - https://git.kernel.org/stable/c/832069bec79cf6f903441c5769d3cdba95d0af33CVE record · Linux · Updated 2026-08-19T16:38:34.886Z
NVD · CVE-2026-74546 · Updated 2026-08-19T17:21:09.453 - https://git.kernel.org/stable/c/96ad57d31763559d376416cdf3bf5ae79bbbebecCVE record · Linux · Updated 2026-08-19T16:38:34.886Z
NVD · CVE-2026-74546 · Updated 2026-08-19T17:21:09.453 - https://git.kernel.org/stable/c/76963b04b2d1c648d69949d8dd521e1ff7f40b51CVE record · Linux · Updated 2026-08-19T16:38:34.886Z
NVD · CVE-2026-74546 · Updated 2026-08-19T17:21:09.453 - https://git.kernel.org/stable/c/1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3CVE record · Linux · Updated 2026-08-19T16:38:34.886Z
NVD · CVE-2026-74546 · Updated 2026-08-19T17:21:09.453 - https://access.redhat.com/security/cve/CVE-2026-74546 Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00
- https://bugzilla.redhat.com/show_bug.cgi?id=2516975 Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-74546 Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00
- https://nvd.nist.gov/vuln/detail/CVE-2026-74546 Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00
- https://lore.kernel.org/linux-cve-announce/2026081549-CVE-2026-74546-f2c9@gregkh/T Red Hat · CVE-2026-74546 · Updated 2026-10-17T21:44:23+00:00
Sources: NVD · CVE.org · All sources and attribution · EPSS