net/dibs: Correct freeing of dmb_clientid_arr
In the Linux kernel, the following vulnerability has been resolved: net/dibs: Correct freeing of dmb_clientid_arr A dibs device interrupt handler can be active after dibs_dev_del() and may still access dmb_clientid_arr. (UAF) In case of a failure in dibs_dev_add() being called by dibs_lo_dev_probe() dmb_clientid_arr is freed twice (double free). Free dmb_clientid_arr in dibs_dev_release() after last reference is gone. Note that allocating in dibs_dev_add() instead of dibs_dev_alloc() is ok for now, because no dmbs can be registered before dibs_dev_add().
CVE-2026-74629
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-2026-74629
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": "cc21191b584c6f7836b0f10774f8278b7cbfba10",
"lessThan": "ece6426b61241e9bfb41aa131f235168f55229b1",
"versionType": "git"
},
{
"status": "affected",
"version": "cc21191b584c6f7836b0f10774f8278b7cbfba10",
"lessThan": "7a1df20a8d2cc89e3a442b6e0b43b1cacde8d403",
"versionType": "git"
},
{
"status": "affected",
"version": "cc21191b584c6f7836b0f10774f8278b7cbfba10",
"lessThan": "9e6869be49064915edb6c8776b27c376cfdb0df5",
"versionType": "git"
}
],
"programFiles": [
"drivers/dibs/dibs_loopback.c",
"drivers/dibs/dibs_main.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.45",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.9",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/dibs/dibs_loopback.c",
"drivers/dibs/dibs_main.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74629
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #34249 · Revision 1
- Added to Heist Feed
- Publisher date