CVE-2023-53291 (GCVE-0-2023-53291)
Vulnerability from cvelistv5
Published
2025-09-16 08:11
Modified
2025-09-16 08:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: rcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale Running the 'kfree_rcu_test' test case [1] results in a splat [2]. The root cause is the kfree_scale_thread thread(s) continue running after unloading the rcuscale module. This commit fixes that isue by invoking kfree_scale_cleanup() from rcu_scale_cleanup() when removing the rcuscale module. [1] modprobe rcuscale kfree_rcu_test=1 // After some time rmmod rcuscale rmmod torture [2] BUG: unable to handle page fault for address: ffffffffc0601a87 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 11de4f067 P4D 11de4f067 PUD 11de51067 PMD 112f4d067 PTE 0 Oops: 0010 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 1798 Comm: kfree_scale_thr Not tainted 6.3.0-rc1-rcu+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 RIP: 0010:0xffffffffc0601a87 Code: Unable to access opcode bytes at 0xffffffffc0601a5d. RSP: 0018:ffffb25bc2e57e18 EFLAGS: 00010297 RAX: 0000000000000000 RBX: ffffffffc061f0b6 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff962fd0de RDI: ffffffff962fd0de RBP: ffffb25bc2e57ea8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000000000a R15: 00000000001c1dbe FS: 0000000000000000(0000) GS:ffff921fa2200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffc0601a5d CR3: 000000011de4c006 CR4: 0000000000370ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ? kvfree_call_rcu+0xf0/0x3a0 ? kthread+0xf3/0x120 ? kthread_complete_and_exit+0x20/0x20 ? ret_from_fork+0x1f/0x30 </TASK> Modules linked in: rfkill sunrpc ... [last unloaded: torture] CR2: ffffffffc0601a87 ---[ end trace 0000000000000000 ]---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1dd7547c7610723b2b6afe1a3c4ddb2bde63387c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/23fc8df26dead16687ae6eb47b0561a4a832e2f6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/29b1da4f90fc42c91beb4e400d926194925ad31b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/604d6a5ff718874904b0fe614878a42b42c0d699
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b8a6ba524d41f4da102e65f90498d9a910839621
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f766d45ab294871a3d588ee76c666852f151cad9
Impacted products
Vendor Product Version
Linux Linux Version: e6e78b004fa7e0ab455d46d27f218bf6ce178a18
Version: e6e78b004fa7e0ab455d46d27f218bf6ce178a18
Version: e6e78b004fa7e0ab455d46d27f218bf6ce178a18
Version: e6e78b004fa7e0ab455d46d27f218bf6ce178a18
Version: e6e78b004fa7e0ab455d46d27f218bf6ce178a18
Version: e6e78b004fa7e0ab455d46d27f218bf6ce178a18
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   Linux Linux Version: 5.6
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/rcu/rcuscale.c"
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            }
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          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.4.4",
              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale\n\nRunning the \u0027kfree_rcu_test\u0027 test case [1] results in a splat [2].\nThe root cause is the kfree_scale_thread thread(s) continue running\nafter unloading the rcuscale module.  This commit fixes that isue by\ninvoking kfree_scale_cleanup() from rcu_scale_cleanup() when removing\nthe rcuscale module.\n\n[1] modprobe rcuscale kfree_rcu_test=1\n    // After some time\n    rmmod rcuscale\n    rmmod torture\n\n[2] BUG: unable to handle page fault for address: ffffffffc0601a87\n    #PF: supervisor instruction fetch in kernel mode\n    #PF: error_code(0x0010) - not-present page\n    PGD 11de4f067 P4D 11de4f067 PUD 11de51067 PMD 112f4d067 PTE 0\n    Oops: 0010 [#1] PREEMPT SMP NOPTI\n    CPU: 1 PID: 1798 Comm: kfree_scale_thr Not tainted 6.3.0-rc1-rcu+ #1\n    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015\n    RIP: 0010:0xffffffffc0601a87\n    Code: Unable to access opcode bytes at 0xffffffffc0601a5d.\n    RSP: 0018:ffffb25bc2e57e18 EFLAGS: 00010297\n    RAX: 0000000000000000 RBX: ffffffffc061f0b6 RCX: 0000000000000000\n    RDX: 0000000000000000 RSI: ffffffff962fd0de RDI: ffffffff962fd0de\n    RBP: ffffb25bc2e57ea8 R08: 0000000000000000 R09: 0000000000000000\n    R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000\n    R13: 0000000000000000 R14: 000000000000000a R15: 00000000001c1dbe\n    FS:  0000000000000000(0000) GS:ffff921fa2200000(0000) knlGS:0000000000000000\n    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n    CR2: ffffffffc0601a5d CR3: 000000011de4c006 CR4: 0000000000370ee0\n    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n    DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n    Call Trace:\n     \u003cTASK\u003e\n     ? kvfree_call_rcu+0xf0/0x3a0\n     ? kthread+0xf3/0x120\n     ? kthread_complete_and_exit+0x20/0x20\n     ? ret_from_fork+0x1f/0x30\n     \u003c/TASK\u003e\n    Modules linked in: rfkill sunrpc ... [last unloaded: torture]\n    CR2: ffffffffc0601a87\n    ---[ end trace 0000000000000000 ]---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-16T08:11:23.666Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/604d6a5ff718874904b0fe614878a42b42c0d699"
        },
        {
          "url": "https://git.kernel.org/stable/c/f766d45ab294871a3d588ee76c666852f151cad9"
        },
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          "url": "https://git.kernel.org/stable/c/b8a6ba524d41f4da102e65f90498d9a910839621"
        },
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          "url": "https://git.kernel.org/stable/c/1dd7547c7610723b2b6afe1a3c4ddb2bde63387c"
        },
        {
          "url": "https://git.kernel.org/stable/c/29b1da4f90fc42c91beb4e400d926194925ad31b"
        },
        {
          "url": "https://git.kernel.org/stable/c/23fc8df26dead16687ae6eb47b0561a4a832e2f6"
        }
      ],
      "title": "rcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53291",
    "datePublished": "2025-09-16T08:11:23.666Z",
    "dateReserved": "2025-09-16T08:09:37.992Z",
    "dateUpdated": "2025-09-16T08:11:23.666Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53291\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T08:15:38.313\",\"lastModified\":\"2025-09-16T12:49:16.060\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale\\n\\nRunning the \u0027kfree_rcu_test\u0027 test case [1] results in a splat [2].\\nThe root cause is the kfree_scale_thread thread(s) continue running\\nafter unloading the rcuscale module.  This commit fixes that isue by\\ninvoking kfree_scale_cleanup() from rcu_scale_cleanup() when removing\\nthe rcuscale module.\\n\\n[1] modprobe rcuscale kfree_rcu_test=1\\n    // After some time\\n    rmmod rcuscale\\n    rmmod torture\\n\\n[2] BUG: unable to handle page fault for address: ffffffffc0601a87\\n    #PF: supervisor instruction fetch in kernel mode\\n    #PF: error_code(0x0010) - not-present page\\n    PGD 11de4f067 P4D 11de4f067 PUD 11de51067 PMD 112f4d067 PTE 0\\n    Oops: 0010 [#1] PREEMPT SMP NOPTI\\n    CPU: 1 PID: 1798 Comm: kfree_scale_thr Not tainted 6.3.0-rc1-rcu+ #1\\n    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015\\n    RIP: 0010:0xffffffffc0601a87\\n    Code: Unable to access opcode bytes at 0xffffffffc0601a5d.\\n    RSP: 0018:ffffb25bc2e57e18 EFLAGS: 00010297\\n    RAX: 0000000000000000 RBX: ffffffffc061f0b6 RCX: 0000000000000000\\n    RDX: 0000000000000000 RSI: ffffffff962fd0de RDI: ffffffff962fd0de\\n    RBP: ffffb25bc2e57ea8 R08: 0000000000000000 R09: 0000000000000000\\n    R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000\\n    R13: 0000000000000000 R14: 000000000000000a R15: 00000000001c1dbe\\n    FS:  0000000000000000(0000) GS:ffff921fa2200000(0000) knlGS:0000000000000000\\n    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n    CR2: ffffffffc0601a5d CR3: 000000011de4c006 CR4: 0000000000370ee0\\n    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n    DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n    Call Trace:\\n     \u003cTASK\u003e\\n     ? kvfree_call_rcu+0xf0/0x3a0\\n     ? kthread+0xf3/0x120\\n     ? kthread_complete_and_exit+0x20/0x20\\n     ? ret_from_fork+0x1f/0x30\\n     \u003c/TASK\u003e\\n    Modules linked in: rfkill sunrpc ... [last unloaded: torture]\\n    CR2: ffffffffc0601a87\\n    ---[ end trace 0000000000000000 ]---\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1dd7547c7610723b2b6afe1a3c4ddb2bde63387c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/23fc8df26dead16687ae6eb47b0561a4a832e2f6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/29b1da4f90fc42c91beb4e400d926194925ad31b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/604d6a5ff718874904b0fe614878a42b42c0d699\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b8a6ba524d41f4da102e65f90498d9a910839621\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f766d45ab294871a3d588ee76c666852f151cad9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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