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

Vulnerability from cvelistv5 – Published: 2025-10-04 15:17 – Updated: 2026-01-05 10:21
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 ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < e732a266b973cd4e115e2cc2ea5007119e8a7fbc (git)
Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < 35e304dbcefa95237a3d6f94c007bfb10f012b17 (git)
Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < fd35b7bb6d5a329c427924886949ab51f210200a (git)
Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < 651260e563d9f50827dac496dc8a0b9b23d5db1a (git)
Affected: e50b1e327aeb4b224364aa6f85c1713ff8b3654b , < 63f8793ee60513a09f110ea460a6ff2c33811cdb (git)
Create a notification for this product.
    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)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/null_blk/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e732a266b973cd4e115e2cc2ea5007119e8a7fbc",
              "status": "affected",
              "version": "e50b1e327aeb4b224364aa6f85c1713ff8b3654b",
              "versionType": "git"
            },
            {
              "lessThan": "35e304dbcefa95237a3d6f94c007bfb10f012b17",
              "status": "affected",
              "version": "e50b1e327aeb4b224364aa6f85c1713ff8b3654b",
              "versionType": "git"
            },
            {
              "lessThan": "fd35b7bb6d5a329c427924886949ab51f210200a",
              "status": "affected",
              "version": "e50b1e327aeb4b224364aa6f85c1713ff8b3654b",
              "versionType": "git"
            },
            {
              "lessThan": "651260e563d9f50827dac496dc8a0b9b23d5db1a",
              "status": "affected",
              "version": "e50b1e327aeb4b224364aa6f85c1713ff8b3654b",
              "versionType": "git"
            },
            {
              "lessThan": "63f8793ee60513a09f110ea460a6ff2c33811cdb",
              "status": "affected",
              "version": "e50b1e327aeb4b224364aa6f85c1713ff8b3654b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/block/null_blk/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.181",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.181",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.113",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.30",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3.4",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T10:21:22.694Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e732a266b973cd4e115e2cc2ea5007119e8a7fbc"
        },
        {
          "url": "https://git.kernel.org/stable/c/35e304dbcefa95237a3d6f94c007bfb10f012b17"
        },
        {
          "url": "https://git.kernel.org/stable/c/fd35b7bb6d5a329c427924886949ab51f210200a"
        },
        {
          "url": "https://git.kernel.org/stable/c/651260e563d9f50827dac496dc8a0b9b23d5db1a"
        },
        {
          "url": "https://git.kernel.org/stable/c/63f8793ee60513a09f110ea460a6ff2c33811cdb"
        }
      ],
      "title": "null_blk: Always check queue mode setting from configfs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53576",
    "datePublished": "2025-10-04T15:17:15.931Z",
    "dateReserved": "2025-10-04T15:14:15.925Z",
    "dateUpdated": "2026-01-05T10:21:22.694Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.