m68k: nfcon: Do not call console_is_registered() in nfcon_device()
In the Linux kernel, the following vulnerability has been resolved: m68k: nfcon: Do not call console_is_registered() in nfcon_device() Since 7c2af0f634f1 ("tty: tty_io: use console_list_lock for list synchronization") show_cons_active() calls the .device() method under the console_list_lock, but console_is_registered() tries to acquire console_list_lock as well, causing a deadlock. It should not be necessary to check console_is_registered() here since the function should not be called in the fist place when the console is not registered.
CVE-2026-90158
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-2026-90158
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": "7c2af0f634f1bc761ca827310dc7e8e586af502f",
"lessThan": "7d3f15a664d115584fc177b5f2cfbdb3e5a50d60",
"versionType": "git"
},
{
"status": "affected",
"version": "7c2af0f634f1bc761ca827310dc7e8e586af502f",
"lessThan": "e5e11274b5512e24a346ed83f8dd85e3389d2f4b",
"versionType": "git"
},
{
"status": "affected",
"version": "7c2af0f634f1bc761ca827310dc7e8e586af502f",
"lessThan": "be98f92fc244688a6bdecbc834cf2cd243056d9d",
"versionType": "git"
},
{
"status": "affected",
"version": "7c2af0f634f1bc761ca827310dc7e8e586af502f",
"lessThan": "d73441232f1f067eb659e94447b1353c16609711",
"versionType": "git"
},
{
"status": "affected",
"version": "7c2af0f634f1bc761ca827310dc7e8e586af502f",
"lessThan": "2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5",
"versionType": "git"
}
],
"programFiles": [
"arch/m68k/emu/nfcon.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.2",
"versionType": "semver"
},
{
"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": [
"arch/m68k/emu/nfcon.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90158
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36546 · Revision 1
- Added to Heist Feed
- Publisher date