CVE-2026-74526
N/A ALL-YEARSIn the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit mpi3mr_fault_uevent_emit() runs from the fault watchdog and reset paths where host I/O may already be blocked. GFP_KERNEL allocations here, both the local kzalloc_obj() and the ones inside kobject_uevent_env() itself, can trigger reclaim that waits on that blocked I/O and deadlock. Use memalloc_noio_save()/restore() to cover the whole call instead of just the local allocation.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 9th 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 274 vendor product statements; 242 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
- 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
- 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
- none available: Fix deferred
kernel-rt-64k-debug-devel as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-debug-devel
- none available: Fix deferred
kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-debug-kvm
- none available: Fix deferred
kernel-uki-virt as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-uki-virt
- none available: Fix deferred
python3-perf as a component of Red Hat Enterprise Linux 10 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/python3-perf
- none available: Fix deferred
kernel-64k-debug-modules-core as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-64k-debug-modules-core
- none available: Fix deferred
kernel-cross-headers as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-cross-headers
- none available: Fix deferred
kernel-devel as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-devel
- none available: Fix deferred
kernel-rt-64k-core as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-core
- none available: Fix deferred
kernel-rt-64k-devel-matched as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-64k-devel-matched
- none available: Fix deferred
kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-debug-kvm
- none available: Fix deferred
kernel-rt-modules-partner as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-rt-modules-partner
- none available: Fix deferred
kernel-zfcpdump-devel-matched as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/kernel-zfcpdump-devel-matched
- none available: Fix deferred
rv as a component of Red Hat Enterprise Linux 9 · known affected
Vendor assessment for this product only.
pkg:rpm/redhat/rv
- none available: Fix deferred
kernel as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-doc as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/kernel-doc
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00perf as a component of Red Hat Enterprise Linux 6 · known not affected
Vendor assessment for this product only.
Reason: vulnerable code not present
pkg:rpm/redhat/perf
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-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-debug
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-kdump-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-kdump-devel
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-rt-doc 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-doc
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-tools 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
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00bpftool 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/bpftool
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-cross-headers 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-cross-headers
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-debug-modules-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-debug-modules-internal
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-modules-extra 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-modules-extra
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-rt-debug-devel 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-devel
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-rt-kvm 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-kvm
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-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-selftests-internal
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00kernel-zfcpdump-devel 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-zfcpdump-devel
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00python3-perf 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/python3-perf
Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00
References
Advisories
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74526.json Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-59719 EUVD · EUVD-2026-59719
Technical & other
- https://git.kernel.org/stable/c/df817b19dac7034416d18f14347010b3e9f5cf3dCVE record · Linux · Updated 2026-08-17T05:21:09.281Z
NVD · CVE-2026-74526 · Updated 2026-08-17T06:19:49.460 - https://git.kernel.org/stable/c/ccff8c92571500fcfed21281e33daaf645bf692fCVE record · Linux · Updated 2026-08-17T05:21:09.281Z
NVD · CVE-2026-74526 · Updated 2026-08-17T06:19:49.460 - https://access.redhat.com/security/cve/CVE-2026-74526 Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00
- https://bugzilla.redhat.com/show_bug.cgi?id=2517055 Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00
- https://www.cve.org/CVERecord?id=CVE-2026-74526 Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00
- https://nvd.nist.gov/vuln/detail/CVE-2026-74526 Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00
- https://lore.kernel.org/linux-cve-announce/2026081545-CVE-2026-74526-09fd@gregkh/T Red Hat · CVE-2026-74526 · Updated 2026-08-19T18:19:35+00:00
Sources: NVD · CVE.org · All sources and attribution · EPSS