CVE-2023-53093 (GCVE-0-2023-53093)

Vulnerability from cvelistv5 – Published: 2025-05-02 15:55 – Updated: 2025-05-04 07:49
VLAI?
Title
tracing: Do not let histogram values have some modifiers
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing: Do not let histogram values have some modifiers Histogram values can not be strings, stacktraces, graphs, symbols, syscalls, or grouped in buckets or log. Give an error if a value is set to do so. Note, the histogram code was not prepared to handle these modifiers for histograms and caused a bug. Mark Rutland reported: # echo 'p:copy_to_user __arch_copy_to_user n=$arg2' >> /sys/kernel/tracing/kprobe_events # echo 'hist:keys=n:vals=hitcount.buckets=8:sort=hitcount' > /sys/kernel/tracing/events/kprobes/copy_to_user/trigger # cat /sys/kernel/tracing/events/kprobes/copy_to_user/hist [ 143.694628] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 143.695190] Mem abort info: [ 143.695362] ESR = 0x0000000096000004 [ 143.695604] EC = 0x25: DABT (current EL), IL = 32 bits [ 143.695889] SET = 0, FnV = 0 [ 143.696077] EA = 0, S1PTW = 0 [ 143.696302] FSC = 0x04: level 0 translation fault [ 143.702381] Data abort info: [ 143.702614] ISV = 0, ISS = 0x00000004 [ 143.702832] CM = 0, WnR = 0 [ 143.703087] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000448f9000 [ 143.703407] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 [ 143.704137] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 143.704714] Modules linked in: [ 143.705273] CPU: 0 PID: 133 Comm: cat Not tainted 6.2.0-00003-g6fc512c10a7c #3 [ 143.706138] Hardware name: linux,dummy-virt (DT) [ 143.706723] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 143.707120] pc : hist_field_name.part.0+0x14/0x140 [ 143.707504] lr : hist_field_name.part.0+0x104/0x140 [ 143.707774] sp : ffff800008333a30 [ 143.707952] x29: ffff800008333a30 x28: 0000000000000001 x27: 0000000000400cc0 [ 143.708429] x26: ffffd7a653b20260 x25: 0000000000000000 x24: ffff10d303ee5800 [ 143.708776] x23: ffffd7a6539b27b0 x22: ffff10d303fb8c00 x21: 0000000000000001 [ 143.709127] x20: ffff10d303ec2000 x19: 0000000000000000 x18: 0000000000000000 [ 143.709478] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 143.709824] x14: 0000000000000000 x13: 203a6f666e692072 x12: 6567676972742023 [ 143.710179] x11: 0a230a6d6172676f x10: 000000000000002c x9 : ffffd7a6521e018c [ 143.710584] x8 : 000000000000002c x7 : 7f7f7f7f7f7f7f7f x6 : 000000000000002c [ 143.710915] x5 : ffff10d303b0103e x4 : ffffd7a653b20261 x3 : 000000000000003d [ 143.711239] x2 : 0000000000020001 x1 : 0000000000000001 x0 : 0000000000000000 [ 143.711746] Call trace: [ 143.712115] hist_field_name.part.0+0x14/0x140 [ 143.712642] hist_field_name.part.0+0x104/0x140 [ 143.712925] hist_field_print+0x28/0x140 [ 143.713125] event_hist_trigger_print+0x174/0x4d0 [ 143.713348] hist_show+0xf8/0x980 [ 143.713521] seq_read_iter+0x1bc/0x4b0 [ 143.713711] seq_read+0x8c/0xc4 [ 143.713876] vfs_read+0xc8/0x2a4 [ 143.714043] ksys_read+0x70/0xfc [ 143.714218] __arm64_sys_read+0x24/0x30 [ 143.714400] invoke_syscall+0x50/0x120 [ 143.714587] el0_svc_common.constprop.0+0x4c/0x100 [ 143.714807] do_el0_svc+0x44/0xd0 [ 143.714970] el0_svc+0x2c/0x84 [ 143.715134] el0t_64_sync_handler+0xbc/0x140 [ 143.715334] el0t_64_sync+0x190/0x194 [ 143.715742] Code: a9bd7bfd 910003fd a90153f3 aa0003f3 (f9400000) [ 143.716510] ---[ end trace 0000000000000000 ]--- Segmentation fault
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c6afad49d127f6d7c9957319f55173a2198b1ba8 , < 39cd75f2f3a43c0e2f95749eb6dd6420c553f87d (git)
Affected: c6afad49d127f6d7c9957319f55173a2198b1ba8 , < 2fc0ee435c9264cdb7c5e872f76cd9bb97640227 (git)
Affected: c6afad49d127f6d7c9957319f55173a2198b1ba8 , < e0213434fe3e4a0d118923dc98d31e7ff1cd9e45 (git)
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    Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 6.1.23 , ≤ 6.1.* (semver)
Unaffected: 6.2.8 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/trace_events_hist.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "39cd75f2f3a43c0e2f95749eb6dd6420c553f87d",
              "status": "affected",
              "version": "c6afad49d127f6d7c9957319f55173a2198b1ba8",
              "versionType": "git"
            },
            {
              "lessThan": "2fc0ee435c9264cdb7c5e872f76cd9bb97640227",
              "status": "affected",
              "version": "c6afad49d127f6d7c9957319f55173a2198b1ba8",
              "versionType": "git"
            },
            {
              "lessThan": "e0213434fe3e4a0d118923dc98d31e7ff1cd9e45",
              "status": "affected",
              "version": "c6afad49d127f6d7c9957319f55173a2198b1ba8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/trace_events_hist.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.7"
            },
            {
              "lessThan": "4.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.23",
                  "versionStartIncluding": "4.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.8",
                  "versionStartIncluding": "4.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "4.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Do not let histogram values have some modifiers\n\nHistogram values can not be strings, stacktraces, graphs, symbols,\nsyscalls, or grouped in buckets or log. Give an error if a value is set to\ndo so.\n\nNote, the histogram code was not prepared to handle these modifiers for\nhistograms and caused a bug.\n\nMark Rutland reported:\n\n # echo \u0027p:copy_to_user __arch_copy_to_user n=$arg2\u0027 \u003e\u003e /sys/kernel/tracing/kprobe_events\n # echo \u0027hist:keys=n:vals=hitcount.buckets=8:sort=hitcount\u0027 \u003e /sys/kernel/tracing/events/kprobes/copy_to_user/trigger\n # cat /sys/kernel/tracing/events/kprobes/copy_to_user/hist\n[  143.694628] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[  143.695190] Mem abort info:\n[  143.695362]   ESR = 0x0000000096000004\n[  143.695604]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  143.695889]   SET = 0, FnV = 0\n[  143.696077]   EA = 0, S1PTW = 0\n[  143.696302]   FSC = 0x04: level 0 translation fault\n[  143.702381] Data abort info:\n[  143.702614]   ISV = 0, ISS = 0x00000004\n[  143.702832]   CM = 0, WnR = 0\n[  143.703087] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000448f9000\n[  143.703407] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n[  143.704137] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP\n[  143.704714] Modules linked in:\n[  143.705273] CPU: 0 PID: 133 Comm: cat Not tainted 6.2.0-00003-g6fc512c10a7c #3\n[  143.706138] Hardware name: linux,dummy-virt (DT)\n[  143.706723] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  143.707120] pc : hist_field_name.part.0+0x14/0x140\n[  143.707504] lr : hist_field_name.part.0+0x104/0x140\n[  143.707774] sp : ffff800008333a30\n[  143.707952] x29: ffff800008333a30 x28: 0000000000000001 x27: 0000000000400cc0\n[  143.708429] x26: ffffd7a653b20260 x25: 0000000000000000 x24: ffff10d303ee5800\n[  143.708776] x23: ffffd7a6539b27b0 x22: ffff10d303fb8c00 x21: 0000000000000001\n[  143.709127] x20: ffff10d303ec2000 x19: 0000000000000000 x18: 0000000000000000\n[  143.709478] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\n[  143.709824] x14: 0000000000000000 x13: 203a6f666e692072 x12: 6567676972742023\n[  143.710179] x11: 0a230a6d6172676f x10: 000000000000002c x9 : ffffd7a6521e018c\n[  143.710584] x8 : 000000000000002c x7 : 7f7f7f7f7f7f7f7f x6 : 000000000000002c\n[  143.710915] x5 : ffff10d303b0103e x4 : ffffd7a653b20261 x3 : 000000000000003d\n[  143.711239] x2 : 0000000000020001 x1 : 0000000000000001 x0 : 0000000000000000\n[  143.711746] Call trace:\n[  143.712115]  hist_field_name.part.0+0x14/0x140\n[  143.712642]  hist_field_name.part.0+0x104/0x140\n[  143.712925]  hist_field_print+0x28/0x140\n[  143.713125]  event_hist_trigger_print+0x174/0x4d0\n[  143.713348]  hist_show+0xf8/0x980\n[  143.713521]  seq_read_iter+0x1bc/0x4b0\n[  143.713711]  seq_read+0x8c/0xc4\n[  143.713876]  vfs_read+0xc8/0x2a4\n[  143.714043]  ksys_read+0x70/0xfc\n[  143.714218]  __arm64_sys_read+0x24/0x30\n[  143.714400]  invoke_syscall+0x50/0x120\n[  143.714587]  el0_svc_common.constprop.0+0x4c/0x100\n[  143.714807]  do_el0_svc+0x44/0xd0\n[  143.714970]  el0_svc+0x2c/0x84\n[  143.715134]  el0t_64_sync_handler+0xbc/0x140\n[  143.715334]  el0t_64_sync+0x190/0x194\n[  143.715742] Code: a9bd7bfd 910003fd a90153f3 aa0003f3 (f9400000)\n[  143.716510] ---[ end trace 0000000000000000 ]---\nSegmentation fault"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:49:41.656Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/39cd75f2f3a43c0e2f95749eb6dd6420c553f87d"
        },
        {
          "url": "https://git.kernel.org/stable/c/2fc0ee435c9264cdb7c5e872f76cd9bb97640227"
        },
        {
          "url": "https://git.kernel.org/stable/c/e0213434fe3e4a0d118923dc98d31e7ff1cd9e45"
        }
      ],
      "title": "tracing: Do not let histogram values have some modifiers",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53093",
    "datePublished": "2025-05-02T15:55:38.386Z",
    "dateReserved": "2025-05-02T15:51:43.552Z",
    "dateUpdated": "2025-05-04T07:49:41.656Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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Sightings

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  • 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.
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  • 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.