FKIE_CVE-2026-90431

Vulnerability from fkie_nvd - Published: 2026-09-17 17:17 - Updated: 2026-09-17 17:17
Severity
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/47de033918cd772146f7438aa04471c020b2dedc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/50f232c26298923d39a48dc8e03d1732e5a5dcf1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/61862ed651b2493573e6d2192d5640bc6616f5d0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/69af36f1fb7d24d287662fef6b2093bcf847a9db
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/74ee3b2f5767447c57959994341e5b95f1079977
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a31d9562eeec5c4103c202fc87651f6e7d3d0035
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a8a62cb4d2f3fd6aa06e86f1711c62d2a4cf17d5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f15cde11298402f803d5dda9cb9f95eea3d2ca40
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/remoteproc/remoteproc_core.c",
            "drivers/remoteproc/remoteproc_sysfs.c",
            "include/linux/remoteproc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "50f232c26298923d39a48dc8e03d1732e5a5dcf1",
              "status": "affected",
              "version": "8afd519c3470f685f964deebd61aa51d83cde90a",
              "versionType": "git"
            },
            {
              "lessThan": "69af36f1fb7d24d287662fef6b2093bcf847a9db",
              "status": "affected",
              "version": "8afd519c3470f685f964deebd61aa51d83cde90a",
              "versionType": "git"
            },
            {
              "lessThan": "a8a62cb4d2f3fd6aa06e86f1711c62d2a4cf17d5",
              "status": "affected",
              "version": "8afd519c3470f685f964deebd61aa51d83cde90a",
              "versionType": "git"
            },
            {
              "lessThan": "47de033918cd772146f7438aa04471c020b2dedc",
              "status": "affected",
              "version": "8afd519c3470f685f964deebd61aa51d83cde90a",
              "versionType": "git"
            },
            {
              "lessThan": "a31d9562eeec5c4103c202fc87651f6e7d3d0035",
              "status": "affected",
              "version": "8afd519c3470f685f964deebd61aa51d83cde90a",
              "versionType": "git"
            },
            {
              "lessThan": "f15cde11298402f803d5dda9cb9f95eea3d2ca40",
              "status": "affected",
              "version": "8afd519c3470f685f964deebd61aa51d83cde90a",
              "versionType": "git"
            },
            {
              "lessThan": "61862ed651b2493573e6d2192d5640bc6616f5d0",
              "status": "affected",
              "version": "8afd519c3470f685f964deebd61aa51d83cde90a",
              "versionType": "git"
            },
            {
              "lessThan": "74ee3b2f5767447c57959994341e5b95f1079977",
              "status": "affected",
              "version": "8afd519c3470f685f964deebd61aa51d83cde90a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/remoteproc/remoteproc_core.c",
            "drivers/remoteproc/remoteproc_sysfs.c",
            "include/linux/remoteproc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.7"
            },
            {
              "lessThan": "3.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nremoteproc: Prevent crash handling to race with rproc_del()\n\nThere\u0027s no synchronization between rproc_crash_handler_work() and\nrproc_del(), as such it\u0027s possible for a driver to be removed while\ncrash-handler work is scheduled, or even executing - resulting in\nuse-after-free issues.\n\nTo avoid this the scheduled work need to be cancelled and synchronized\nagainst before the removal proceeds.\n\nIn order to ensure that this doesn\u0027t race with the reporting, and\nthereby scheduling new work, a \"deleting\" flag is introduced. This is\nsimilar to the RPROC_DELETE state that was introduced to ensure that\n\"start\" didn\u0027t race with rproc_del(), but the existing mechanism can not\nbe used as it\u0027s valid to call rproc_report_crash() in atomic context -\nand the \"state\" is protected by a mutex.\n\nIn the event that work is cancelled the pm_stay_awake() is left\nunbalanced and need to be unrolled.\n\nThe blocking and cancelling of crash-handler work prior to the actual\nrproc_shutdown() call does have the explicit side-effect that crashes\nresulting from the shutdown process will not enter the crash-handling\npath, and as such will not generate devcoredumps etc. Due to the\nexisting mutual exclusion between these code paths there\u0027s no concrete\nreduction in functionality, but further work would be needed to handle\nthis case."
    }
  ],
  "id": "CVE-2026-90431",
  "lastModified": "2026-09-17T17:17:48.110",
  "metrics": {},
  "published": "2026-09-17T17:17:48.110",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/47de033918cd772146f7438aa04471c020b2dedc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/50f232c26298923d39a48dc8e03d1732e5a5dcf1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/61862ed651b2493573e6d2192d5640bc6616f5d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/69af36f1fb7d24d287662fef6b2093bcf847a9db"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/74ee3b2f5767447c57959994341e5b95f1079977"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a31d9562eeec5c4103c202fc87651f6e7d3d0035"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a8a62cb4d2f3fd6aa06e86f1711c62d2a4cf17d5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f15cde11298402f803d5dda9cb9f95eea3d2ca40"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.