tty: abort break signalling on hangup
In the Linux kernel, the following vulnerability has been resolved: tty: abort break signalling on hangup The break ioctls can race with hangup and end up calling into a tty driver for a device that is already gone or powered down. Drivers must handle this race, but TCSBRK and TCSBRKP should still be aborted to avoid calling back into the driver after a user-controlled timeout (possibly even after the tty has been reopened). Note that drivers should disable any break state on shutdown so just return on hangup (calling break_ctl() again is racy and will most likely fail for drivers handling the race).
CVE-2026-98751
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-2026-98751
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": "f34d7a5b7010b82fe97da95496b9971435530062",
"lessThan": "6c9c9367351a461d62e5c0a39bffdcfbb40f068b",
"versionType": "git"
},
{
"status": "affected",
"version": "f34d7a5b7010b82fe97da95496b9971435530062",
"lessThan": "3bc82999fb85cecc7eb6ec1755ee7d698aa1e783",
"versionType": "git"
},
{
"status": "affected",
"version": "f34d7a5b7010b82fe97da95496b9971435530062",
"lessThan": "94af6cd832e9b4ce39a8fb59144a8f09ab56fd35",
"versionType": "git"
},
{
"status": "affected",
"version": "f34d7a5b7010b82fe97da95496b9971435530062",
"lessThan": "c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6",
"versionType": "git"
},
{
"status": "affected",
"version": "f34d7a5b7010b82fe97da95496b9971435530062",
"lessThan": "845a2737e0f5ffe5ca8d38de556012b0c9472cdd",
"versionType": "git"
}
],
"programFiles": [
"drivers/tty/tty_io.c",
"include/linux/tty.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.26"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.26",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/tty/tty_io.c",
"include/linux/tty.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98751
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48948 · Revision 1
- Added to Heist Feed
- Publisher date