remoteproc: Prevent crash handling to race with rproc_del()
In the Linux kernel, the following vulnerability has been resolved: remoteproc: Prevent crash handling to race with rproc_del() There's no synchronization between rproc_crash_handler_work() and rproc_del(), as such it's possible for a driver to be removed while crash-handler work is scheduled, or even executing - resulting in use-after-free issues. To avoid this the scheduled work need to be cancelled and synchronized against before the removal proceeds. In order to ensure that this doesn't race with the reporting, and thereby scheduling new work, a "deleting" flag is introduced. This is similar to the RPROC_DELETE state that was introduced to ensure that "start" didn't race with rproc_del(), but the existing mechanism can not be used as it's valid to call rproc_report_crash() in atomic context - and the "state" is protected by a mutex. In the event that work is cancelled the pm_stay_awake() is left unbalanced and need to be unrolled. The blocking and cancelling of crash-handler work prior to the actual rproc_shutdown() call does have the explicit side-effect that crashes resulting from the shutdown process will not enter the crash-handling path, and as such will not generate devcoredumps etc. Due to the existing mutual exclusion between these code paths there's no concrete reduction in functionality, but further work would be needed to handle this case.
CVE-2026-90431
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-2026-90431
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": "8afd519c3470f685f964deebd61aa51d83cde90a",
"lessThan": "50f232c26298923d39a48dc8e03d1732e5a5dcf1",
"versionType": "git"
},
{
"status": "affected",
"version": "8afd519c3470f685f964deebd61aa51d83cde90a",
"lessThan": "69af36f1fb7d24d287662fef6b2093bcf847a9db",
"versionType": "git"
},
{
"status": "affected",
"version": "8afd519c3470f685f964deebd61aa51d83cde90a",
"lessThan": "a8a62cb4d2f3fd6aa06e86f1711c62d2a4cf17d5",
"versionType": "git"
},
{
"status": "affected",
"version": "8afd519c3470f685f964deebd61aa51d83cde90a",
"lessThan": "47de033918cd772146f7438aa04471c020b2dedc",
"versionType": "git"
},
{
"status": "affected",
"version": "8afd519c3470f685f964deebd61aa51d83cde90a",
"lessThan": "a31d9562eeec5c4103c202fc87651f6e7d3d0035",
"versionType": "git"
},
{
"status": "affected",
"version": "8afd519c3470f685f964deebd61aa51d83cde90a",
"lessThan": "f15cde11298402f803d5dda9cb9f95eea3d2ca40",
"versionType": "git"
},
{
"status": "affected",
"version": "8afd519c3470f685f964deebd61aa51d83cde90a",
"lessThan": "61862ed651b2493573e6d2192d5640bc6616f5d0",
"versionType": "git"
},
{
"status": "affected",
"version": "8afd519c3470f685f964deebd61aa51d83cde90a",
"lessThan": "74ee3b2f5767447c57959994341e5b95f1079977",
"versionType": "git"
}
],
"programFiles": [
"drivers/remoteproc/remoteproc_core.c",
"drivers/remoteproc/remoteproc_sysfs.c",
"include/linux/remoteproc.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.270",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"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/remoteproc/remoteproc_core.c",
"drivers/remoteproc/remoteproc_sysfs.c",
"include/linux/remoteproc.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90431
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36747 · Revision 1
- Added to Heist Feed
- Publisher date