staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown
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.
CVE-2026-93278
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-93278
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3368c784bcf77124aaf39372e627016c36bd4472",
"lessThan": "158389d7af04bbf0664d91c2ce31fcc9eeace1eb",
"versionType": "git"
},
{
"status": "affected",
"version": "3368c784bcf77124aaf39372e627016c36bd4472",
"lessThan": "c124049c3a7006fd6caf629139a5722610bbffb4",
"versionType": "git"
},
{
"status": "affected",
"version": "3368c784bcf77124aaf39372e627016c36bd4472",
"lessThan": "98f9036b2254c928cb44da0c77dba38f66f7d8f1",
"versionType": "git"
},
{
"status": "affected",
"version": "3368c784bcf77124aaf39372e627016c36bd4472",
"lessThan": "b38fbd68cc36b4f478a1e3cfc169b8616ae1337d",
"versionType": "git"
},
{
"status": "affected",
"version": "3368c784bcf77124aaf39372e627016c36bd4472",
"lessThan": "89f9f433271fad9351de6a3c713b45b2cfb23e4a",
"versionType": "git"
},
{
"status": "affected",
"version": "3368c784bcf77124aaf39372e627016c36bd4472",
"lessThan": "b2243ffaac14cc3639b5b32a371aac37f96ee554",
"versionType": "git"
},
{
"status": "affected",
"version": "3368c784bcf77124aaf39372e627016c36bd4472",
"lessThan": "c0a9a8586a63fda49e61a6b83360feac2a60d898",
"versionType": "git"
}
],
"programFiles": [
"drivers/staging/octeon/ethernet-rx.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.34"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.34",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/staging/octeon/ethernet-rx.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93278
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #37970 · Revision 1
- Added to Heist Feed
- Publisher date