CVE-2026-93278 json
staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown
published 2026-09-24 46 d ago modified 2026-10-19 21 d ago also EUVD-2026-86150
- cvss
- —
- not scored
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
In the Linux kernel, the following vulnerability has been resolved:
staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown
cvm_oct_rx_shutdown calls free_irq and netif_napi_del without disabling the napi instance first. As the free_irq only waits for completion of hard interrupt handlers, the napi poll function could still be active. If cvm_oct_remove proceeds to free the plat structure (which holds the NAPI instances), the active poll function will access freed memory, resulting in a use-after-free crash.
Patch / fix
- Linux Linux 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3
- linux Debian 12 6.1.190-1
- linux Debian 13 6.12.111-1
- linux Debian 14 7.2.6-1
- linux-6.12 Debian 12 6.12.111-1~deb12u1
debian advisories DEBIAN-CVE-2026-93278
- kernel-source openSUSE Tumbleweed 7.2.9-1.1
opensuse advisories openSUSE-SU-2026:12074-1
- git.kernel.org/stable/c/158389d7af04bbf0664d91c2ce31fcc9eeace1eb commit
- git.kernel.org/stable/c/c124049c3a7006fd6caf629139a5722610bbffb4 commit
- git.kernel.org/stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1 commit
- git.kernel.org/stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d commit
- git.kernel.org/stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a commit
- git.kernel.org/stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554 commit
- git.kernel.org/stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898 commit
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-93278 updated cvss 5.5
kernel: staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown
-
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernel Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9not affected: vulnerable code not present
+1 more productsfewer
Red Hat OpenShift Container Platform 5 openshift/ose-rhel-coreos-9
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
Affected products
- Linux Linux
Classification
- Technology feeds
References
- git.kernel.org /stable/c/158389d7af04bbf0664d91c2ce31fcc9eeace1eb
- git.kernel.org /stable/c/c124049c3a7006fd6caf629139a5722610bbffb4
- git.kernel.org /stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1
- git.kernel.org /stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d
- git.kernel.org /stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a
- git.kernel.org /stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554
- git.kernel.org /stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898
Sources
- CVE List CVE-2026-93278
- NVD CVE-2026-93278
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