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drm/i915/gvt: fix gvt debugfs destroy

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gvt: fix gvt debugfs destroy When gvt debug fs is destroyed, need to have a sane check if drm minor's debugfs root is still available or not, otherwise in case like device remove through unbinding, drm minor's debugfs directory has already been removed, then intel_gvt_debugfs_clean() would act upon dangling pointer like below oops. i915 0000:00:02.0: Direct firmware load for i915/gvt/vid_0x8086_did_0x1926_rid_0x0a.golden_hw_state failed with error -2 i915 0000:00:02.0: MDEV: Registered Console: switching to colour dummy device 80x25 i915 0000:00:02.0: MDEV: Unregistering BUG: kernel NULL pointer dereference, address: 00000000000000a0 PGD 0 P4D 0 Oops: 0002 [#1] PREEMPT SMP PTI CPU: 2 PID: 2486 Comm: gfx-unbind.sh Tainted: G I 6.1.0-rc8+ #15 Hardware name: Dell Inc. XPS 13 9350/0JXC1H, BIOS 1.13.0 02/10/2020 RIP: 0010:down_write+0x1f/0x90 Code: 1d ff ff 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 53 48 89 fb e8 62 c0 ff ff bf 01 00 00 00 e8 28 5e 31 ff 31 c0 ba 01 00 00 00 48 0f b1 13 75 33 65 48 8b 04 25 c0 bd 01 00 48 89 43 08 bf 01 RSP: 0018:ffff9eb3036ffcc8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00000000000000a0 RCX: ffffff8100000000 RDX: 0000000000000001 RSI: 0000000000000064 RDI: ffffffffa48787a8 RBP: ffff9eb3036ffd30 R08: ffffeb1fc45a0608 R09: ffffeb1fc45a05c0 R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000000 R13: ffff91acc33fa328 R14: ffff91acc033f080 R15: ffff91acced533e0 FS:

Announced Source revision 1
Original source ↗

CVE-2023-54098

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-2023-54098

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": "bc7b0be316aebac42eb9e8e54c984609555944da",
        "lessThan": "bb7c7b2c89d2feb347b6f9bffc1c75987adb1048",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bc7b0be316aebac42eb9e8e54c984609555944da",
        "lessThan": "ae9a61511736cc71a99f01e8b7b90f6fb6128ed8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bc7b0be316aebac42eb9e8e54c984609555944da",
        "lessThan": "b85c8536fda3d1ed07c6d87a661ffe18d6eb214b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bc7b0be316aebac42eb9e8e54c984609555944da",
        "lessThan": "fe340500baf84b6531c9fc508b167525b9bf6446",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bc7b0be316aebac42eb9e8e54c984609555944da",
        "lessThan": "c4b850d1f448a901fbf4f7f36dec38c84009b489",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/i915/gvt/debugfs.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.16"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.16",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.163",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.87",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.0.19",
        "versionType": "semver",
        "lessThanOrEqual": "6.0.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.5",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/i915/gvt/debugfs.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2023-54098

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#30347 · Revision 1
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Publisher date
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