net: ibm: emac: mal: fix potential system hang in mal_remove()
In the Linux kernel, the following vulnerability has been resolved: net: ibm: emac: mal: fix potential system hang in mal_remove() napi_disable() is not idempotent and calling it on an already-disabled or unenabled NAPI context will cause the kernel to spin indefinitely waiting for the NAPI_STATE_SCHED bit to clear. In mal_remove(), napi_disable() is called unconditionally. If no MACs were registered, NAPI was never enabled. Also, if they were registered but subsequently unregistered, NAPI was already disabled in mal_unregister_commac(). In either case, calling napi_disable() causes the kernel to hang upon module removal. Fix this by only calling napi_disable() in mal_remove() if the commac list is not empty (which implies NAPI is enabled).
CVE-2026-97411
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-2026-97411
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": "b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9",
"lessThan": "9c1c814a662d9c81959eba591bb52b24639390f2",
"versionType": "git"
},
{
"status": "affected",
"version": "b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9",
"lessThan": "34c4cae51718d6f393415e01c61314c1bde02f2e",
"versionType": "git"
},
{
"status": "affected",
"version": "b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9",
"lessThan": "62126e73e230cf4bd6c27cf201949c4290af84a1",
"versionType": "git"
},
{
"status": "affected",
"version": "b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9",
"lessThan": "f0399b3e212741bc5a64b8399d6266c4a150bdfe",
"versionType": "git"
},
{
"status": "affected",
"version": "b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9",
"lessThan": "f6c1aad9b35fa083f48ce0c5926204891d82e089",
"versionType": "git"
},
{
"status": "affected",
"version": "b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9",
"lessThan": "c4cb9a728df66c46067b26263f5beb633aae4087",
"versionType": "git"
},
{
"status": "affected",
"version": "b3e441c6ed8655a42e7b4da1b6dc7939f259d9c9",
"lessThan": "7c5d41f87f079990bf241359e3c1332d8d10fe87",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/ibm/emac/mal.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.24"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.24",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/ibm/emac/mal.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97411
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #8304 · Revision 1
- Added to Heist Feed
- Publisher date