CVE-2023-53576 (GCVE-0-2023-53576)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:17 – Updated: 2026-05-11 19:47
VLAI
Title
null_blk: Always check queue mode setting from configfs
Summary
In the Linux kernel, the following vulnerability has been resolved: null_blk: Always check queue mode setting from configfs Make sure to check device queue mode in the null_validate_conf() and return error for NULL_Q_RQ as we don't allow legacy I/O path, without this patch we get OOPs when queue mode is set to 1 from configfs, following are repro steps :- modprobe null_blk nr_devices=0 mkdir config/nullb/nullb0 echo 1 > config/nullb/nullb0/memory_backed echo 4096 > config/nullb/nullb0/blocksize echo 20480 > config/nullb/nullb0/size echo 1 > config/nullb/nullb0/queue_mode echo 1 > config/nullb/nullb0/power Entering kdb (current=0xffff88810acdd080, pid 2372) on processor 42 Oops: (null) due to oops @ 0xffffffffc041c329 CPU: 42 PID: 2372 Comm: sh Tainted: G O N 6.3.0-rc5lblk+ #5 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:null_add_dev.part.0+0xd9/0x720 [null_blk] Code: 01 00 00 85 d2 0f 85 a1 03 00 00 48 83 bb 08 01 00 00 00 0f 85 f7 03 00 00 80 bb 62 01 00 00 00 48 8b 75 20 0f 85 6d 02 00 00 <48> 89 6e 60 48 8b 75 20 bf 06 00 00 00 e8 f5 37 2c c1 48 8b 75 20 RSP: 0018:ffffc900052cbde0 EFLAGS: 00010246 RAX: 0000000000000001 RBX: ffff88811084d800 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888100042e00 RBP: ffff8881053d8200 R08: ffffc900052cbd68 R09: ffff888105db2000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002 R13: ffff888104765200 R14: ffff88810eec1748 R15: ffff88810eec1740 FS: 00007fd445fd1740(0000) GS:ffff8897dfc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000060 CR3: 0000000166a00000 CR4: 0000000000350ee0 DR0: ffffffff8437a488 DR1: ffffffff8437a489 DR2: ffffffff8437a48a DR3: ffffffff8437a48b DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: <TASK> nullb_device_power_store+0xd1/0x120 [null_blk] configfs_write_iter+0xb4/0x120 vfs_write+0x2ba/0x3c0 ksys_write+0x5f/0xe0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fd4460c57a7 Code: 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 RSP: 002b:00007ffd3792a4a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd4460c57a7 RDX: 0000000000000002 RSI: 000055b43c02e4c0 RDI: 0000000000000001 RBP: 000055b43c02e4c0 R08: 000000000000000a R09: 00007fd44615b4e0 R10: 00007fd44615b3e0 R11: 0000000000000246 R12: 0000000000000002 R13: 00007fd446198520 R14: 0000000000000002 R15: 00007fd446198700 </TASK>
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < e732a266b973cd4e115e2cc2ea5007119e8a7fbc (git)
Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < 35e304dbcefa95237a3d6f94c007bfb10f012b17 (git)
Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < fd35b7bb6d5a329c427924886949ab51f210200a (git)
Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < 651260e563d9f50827dac496dc8a0b9b23d5db1a (git)
Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < 63f8793ee60513a09f110ea460a6ff2c33811cdb (git)
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Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.10.181 , ≤ 5.10.* (semver)
Unaffected: 5.15.113 , ≤ 5.15.* (semver)
Unaffected: 6.1.30 , ≤ 6.1.* (semver)
Unaffected: 6.3.4 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnull_blk: Always check queue mode setting from configfs\n\nMake sure to check device queue mode in the null_validate_conf() and\nreturn error for NULL_Q_RQ as we don\u0027t allow legacy I/O path, without\nthis patch we get OOPs when queue mode is set to 1 from configfs,\nfollowing are repro steps :-\n\nmodprobe null_blk nr_devices=0\nmkdir config/nullb/nullb0\necho 1 \u003e config/nullb/nullb0/memory_backed\necho 4096 \u003e config/nullb/nullb0/blocksize\necho 20480 \u003e config/nullb/nullb0/size\necho 1 \u003e config/nullb/nullb0/queue_mode\necho 1 \u003e config/nullb/nullb0/power\n\nEntering kdb (current=0xffff88810acdd080, pid 2372) on processor 42 Oops: (null)\ndue to oops @ 0xffffffffc041c329\nCPU: 42 PID: 2372 Comm: sh Tainted: G           O     N 6.3.0-rc5lblk+ #5\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\nRIP: 0010:null_add_dev.part.0+0xd9/0x720 [null_blk]\nCode: 01 00 00 85 d2 0f 85 a1 03 00 00 48 83 bb 08 01 00 00 00 0f 85 f7 03 00 00 80 bb 62 01 00 00 00 48 8b 75 20 0f 85 6d 02 00 00 \u003c48\u003e 89 6e 60 48 8b 75 20 bf 06 00 00 00 e8 f5 37 2c c1 48 8b 75 20\nRSP: 0018:ffffc900052cbde0 EFLAGS: 00010246\nRAX: 0000000000000001 RBX: ffff88811084d800 RCX: 0000000000000001\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888100042e00\nRBP: ffff8881053d8200 R08: ffffc900052cbd68 R09: ffff888105db2000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002\nR13: ffff888104765200 R14: ffff88810eec1748 R15: ffff88810eec1740\nFS:  00007fd445fd1740(0000) GS:ffff8897dfc80000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000060 CR3: 0000000166a00000 CR4: 0000000000350ee0\nDR0: ffffffff8437a488 DR1: ffffffff8437a489 DR2: ffffffff8437a48a\nDR3: ffffffff8437a48b DR6: 00000000ffff0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n nullb_device_power_store+0xd1/0x120 [null_blk]\n configfs_write_iter+0xb4/0x120\n vfs_write+0x2ba/0x3c0\n ksys_write+0x5f/0xe0\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\nRIP: 0033:0x7fd4460c57a7\nCode: 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24\nRSP: 002b:00007ffd3792a4a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd4460c57a7\nRDX: 0000000000000002 RSI: 000055b43c02e4c0 RDI: 0000000000000001\nRBP: 000055b43c02e4c0 R08: 000000000000000a R09: 00007fd44615b4e0\nR10: 00007fd44615b3e0 R11: 0000000000000246 R12: 0000000000000002\nR13: 00007fd446198520 R14: 0000000000000002 R15: 00007fd446198700\n \u003c/TASK\u003e"
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "title": "null_blk: Always check queue mode setting from configfs",
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    "datePublished": "2025-10-04T15:17:15.931Z",
    "dateReserved": "2025-10-04T15:14:15.925Z",
    "dateUpdated": "2026-05-11T19:47:44.323Z",
    "state": "PUBLISHED"
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        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnull_blk: Always check queue mode setting from configfs\n\nMake sure to check device queue mode in the null_validate_conf() and\nreturn error for NULL_Q_RQ as we don\u0027t allow legacy I/O path, without\nthis patch we get OOPs when queue mode is set to 1 from configfs,\nfollowing are repro steps :-\n\nmodprobe null_blk nr_devices=0\nmkdir config/nullb/nullb0\necho 1 \u003e config/nullb/nullb0/memory_backed\necho 4096 \u003e config/nullb/nullb0/blocksize\necho 20480 \u003e config/nullb/nullb0/size\necho 1 \u003e config/nullb/nullb0/queue_mode\necho 1 \u003e config/nullb/nullb0/power\n\nEntering kdb (current=0xffff88810acdd080, pid 2372) on processor 42 Oops: (null)\ndue to oops @ 0xffffffffc041c329\nCPU: 42 PID: 2372 Comm: sh Tainted: G           O     N 6.3.0-rc5lblk+ #5\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\nRIP: 0010:null_add_dev.part.0+0xd9/0x720 [null_blk]\nCode: 01 00 00 85 d2 0f 85 a1 03 00 00 48 83 bb 08 01 00 00 00 0f 85 f7 03 00 00 80 bb 62 01 00 00 00 48 8b 75 20 0f 85 6d 02 00 00 \u003c48\u003e 89 6e 60 48 8b 75 20 bf 06 00 00 00 e8 f5 37 2c c1 48 8b 75 20\nRSP: 0018:ffffc900052cbde0 EFLAGS: 00010246\nRAX: 0000000000000001 RBX: ffff88811084d800 RCX: 0000000000000001\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888100042e00\nRBP: ffff8881053d8200 R08: ffffc900052cbd68 R09: ffff888105db2000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000002\nR13: ffff888104765200 R14: ffff88810eec1748 R15: ffff88810eec1740\nFS:  00007fd445fd1740(0000) GS:ffff8897dfc80000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000060 CR3: 0000000166a00000 CR4: 0000000000350ee0\nDR0: ffffffff8437a488 DR1: ffffffff8437a489 DR2: ffffffff8437a48a\nDR3: ffffffff8437a48b DR6: 00000000ffff0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n nullb_device_power_store+0xd1/0x120 [null_blk]\n configfs_write_iter+0xb4/0x120\n vfs_write+0x2ba/0x3c0\n ksys_write+0x5f/0xe0\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\nRIP: 0033:0x7fd4460c57a7\nCode: 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24\nRSP: 002b:00007ffd3792a4a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fd4460c57a7\nRDX: 0000000000000002 RSI: 000055b43c02e4c0 RDI: 0000000000000001\nRBP: 000055b43c02e4c0 R08: 000000000000000a R09: 00007fd44615b4e0\nR10: 00007fd44615b3e0 R11: 0000000000000246 R12: 0000000000000002\nR13: 00007fd446198520 R14: 0000000000000002 R15: 00007fd446198700\n \u003c/TASK\u003e"
          }
        ],
        "id": "CVE-2023-53576",
        "lastModified": "2026-06-17T06:45:38.347",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-10-04T16:15:53.250",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/35e304dbcefa95237a3d6f94c007bfb10f012b17"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/63f8793ee60513a09f110ea460a6ff2c33811cdb"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/651260e563d9f50827dac496dc8a0b9b23d5db1a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e732a266b973cd4e115e2cc2ea5007119e8a7fbc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fd35b7bb6d5a329c427924886949ab51f210200a"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-21T18:54:03+00:00",
      "cve": "CVE-2023-53576",
      "id": "CVE-2023-53576",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "124",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: null_blk: Always check queue mode setting from configfs",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53576.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:06:20Z",
      "cve": "CVE-2023-53576",
      "id": "CVE-2023-53576",
      "initial_release_date": "2025-10-05T02:56:03Z",
      "product_status:known_affected": "484",
      "product_status:known_not_affected": "292",
      "product_status:recommended": "158",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53576",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53576.json",
      "version": "21"
    }
  }
}



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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.